Mean magnitude and position on the discovery images: 
                   2026 09 04.3991  2461287.8991   9.82  05:21:07.64 +23:38:19.8
181.48711  -7.48060 galactic  Tau  Second-epoch detections are separated by 0.3" and 7.9 pix   This object is listed in tocp_transients_list.txt    0.4"  TCP J05210763+2338194  2026-08-06.4109  11.2mag
The object was not found in VSX
The object was not found in ASASSN-V
The object was not found in astcheck.
 online_id        | N Tau                        | 05:21:07.64 +23:38:19.8 (user input)  | 2026 (VSX @ VizieR) | N (VSX @ VizieR)     |  (position from user input)                                                  
Check this position in TNS.                         Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs.  WISE atlas  Aladin Lite  SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.

Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

# Set SExtractor parameters file
cp default.sex.telephoto_lens_onlybrightstars_v1 default.sex
# Plate-solve the FITS images
export TELESCOP=''
for i in /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits ;do util/wcs_image_calibration.sh $i ;done
# Display the solved FITS images
ds9 -frame lock wcs  wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits  wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits -crosshair 3293.53638 4204.49902 image    wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits -crosshair 3299.06860 4198.85059 image   

./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits  && util/transients/search_for_transients_single_field.sh

REFERENCE_IMAGES=/data_ssd/NMW-TexasTech/reference_imgs  util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg

Don't forget to copy the leading white spaces and change the observatory code! The code 'C32' is 'Ka-Dar Observatory, TAU Station, Nizhny Arkhyz', the code '500' is the geocenter. Make sure there are no trailing white spaces after the observatory code. The string should be exactly 80 characters long to conform to the MPC format.
Mean position:

     TAU0008  C2026 09 04.39905 05 21 07.64 +23 38 19.8           9.8 R      V36

Position measured on individual images:

     TAU0008  C2026 09 04.39871 05 21 07.65 +23 38 19.8           9.7 R      V36
     TAU0008  C2026 09 04.39940 05 21 07.63 +23 38 19.8           9.9 R      V36

You may copy/paste the above measurements to the following online services:
MPChecker (in case the button does not work)
NEOCMTChecker (NEO's and comets)
sat_id2 (artificial satellites; needs at least two observations to work)
fitsblink_satellites (art. sat.; you'll need to save the astrometry as a text file and upload it)

Here is a stub line for reporting a new transient to the TOCP. Don't forget to set the constellation name and the number of days since the last non-detection!

TCP 2026 09 04.3990*  05 21 07.64 +23 38 19.8   9.8 U             Tau       9 0

Don't forget to change the observer code for the AAVSO and VSNET format data!

 **** AAVSO file format ****

#TYPE=EXTENDED
#OBSCODE=SKA
#SOFTWARE=VaST 1.0rc90 transient pipeline
#DELIM=,
#DATE=JD
#NAME,DATE,MAG,MERR,FILT,TRANS,MTYPE,CNAME,CMAG,KNAME,KMAG,AMASS,GROUP,CHART,NOTES
N Tau,2461287.8991,9.82,0.05,CV,NO,STD,ENSEMBLE,na,na,na,na,1,na,NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS


 **** VSNET file format ****

# Here are some valid formatiing examples:
#CETFZ 20230815.9829   <13.5CV NMW
#CETFZ 20230818.9746    12.5CV NMW
#CETFZ 20230819.9732    12.6CV NMW
#TCPJ17453768-1756253 20230831.7290 12.7CV NMW
N Tau 20260904.3991 9.82CV NMW


The AAVSO data should be submitted to https://www.aavso.org/webobs

The VSNET data, depending on how interesting the target is, should be e-mailed to
vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
vsnet-outburst-wanted@ooruri.kusastro.kyoto-u.ac.jp
vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
# Time-series data may be sent to  vsnet-campaign-report@ooruri.kusastro.kyoto-u.ac.jp

Mean magnitude and position on the discovery images: 
                   2026 09 04.3991  2461287.8991   9.87  05:21:07.64 +23:38:19.8
181.48711  -7.48060 galactic  Tau  Second-epoch detections are separated by 0.9" and 7.9 pix   This object is listed in tocp_transients_list.txt    0.4"  TCP J05210763+2338194  2026-08-06.4109  11.2mag
The object was not found in VSX
The object was not found in ASASSN-V
The object was not found in astcheck.
 online_id        | N Tau                        | 05:21:07.64 +23:38:19.8 (user input)  | 2026 (VSX @ VizieR) | N (VSX @ VizieR)     |  (position from user input)                                                  
Check this position in TNS.                         Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs.  WISE atlas  Aladin Lite  SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.

Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

# Set SExtractor parameters file
cp default.sex.telephoto_lens_onlybrightstars_v1 default.sex
# Plate-solve the FITS images
export TELESCOP=''
for i in /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits ;do util/wcs_image_calibration.sh $i ;done
# Display the solved FITS images
ds9 -frame lock wcs  wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits  wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits -crosshair 3293.54468 4204.49219 image    wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits -crosshair 3299.07983 4198.84424 image   

./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits  && util/transients/search_for_transients_single_field.sh

REFERENCE_IMAGES=/data_ssd/NMW-TexasTech/reference_imgs  util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg

Don't forget to copy the leading white spaces and change the observatory code! The code 'C32' is 'Ka-Dar Observatory, TAU Station, Nizhny Arkhyz', the code '500' is the geocenter. Make sure there are no trailing white spaces after the observatory code. The string should be exactly 80 characters long to conform to the MPC format.
Mean position:

     TAU0008  C2026 09 04.39905 05 21 07.64 +23 38 19.8           9.9 R      V36

Position measured on individual images:

     TAU0008  C2026 09 04.39871 05 21 07.67 +23 38 19.5           9.8 R      V36
     TAU0008  C2026 09 04.39940 05 21 07.61 +23 38 20.0           9.9 R      V36

You may copy/paste the above measurements to the following online services:
MPChecker (in case the button does not work)
NEOCMTChecker (NEO's and comets)
sat_id2 (artificial satellites; needs at least two observations to work)
fitsblink_satellites (art. sat.; you'll need to save the astrometry as a text file and upload it)

Here is a stub line for reporting a new transient to the TOCP. Don't forget to set the constellation name and the number of days since the last non-detection!

TCP 2026 09 04.3990*  05 21 07.64 +23 38 19.8   9.9 U             Tau       9 0

Don't forget to change the observer code for the AAVSO and VSNET format data!

 **** AAVSO file format ****

#TYPE=EXTENDED
#OBSCODE=SKA
#SOFTWARE=VaST 1.0rc90 transient pipeline
#DELIM=,
#DATE=JD
#NAME,DATE,MAG,MERR,FILT,TRANS,MTYPE,CNAME,CMAG,KNAME,KMAG,AMASS,GROUP,CHART,NOTES
N Tau,2461287.8991,9.87,0.05,CV,NO,STD,ENSEMBLE,na,na,na,na,1,na,NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS


 **** VSNET file format ****

# Here are some valid formatiing examples:
#CETFZ 20230815.9829   <13.5CV NMW
#CETFZ 20230818.9746    12.5CV NMW
#CETFZ 20230819.9732    12.6CV NMW
#TCPJ17453768-1756253 20230831.7290 12.7CV NMW
N Tau 20260904.3991 9.87CV NMW


The AAVSO data should be submitted to https://www.aavso.org/webobs

The VSNET data, depending on how interesting the target is, should be e-mailed to
vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
vsnet-outburst-wanted@ooruri.kusastro.kyoto-u.ac.jp
vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
# Time-series data may be sent to  vsnet-campaign-report@ooruri.kusastro.kyoto-u.ac.jp

Mean magnitude and position on the discovery images: 
                   2026 09 04.3991  2461287.8991  13.08  05:31:54.44 +23:49:50.7
182.69283  -5.31554 galactic  Tau  Second-epoch detections are separated by 0.4" and 7.7 pix   
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.  
110 Lydia                   -1      0       1  13.2     0    0
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:31:54.44 +23:49:50.7:  16.18 +/- 99.00  upperlimit
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:31:54.44 +23:49:50.7:  16.07 +/- 99.00  upperlimit
Check this position in TNS.                         Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs.  WISE atlas  Aladin Lite  SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.

Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits


fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

# Set SExtractor parameters file
cp default.sex.telephoto_lens_onlybrightstars_v1 default.sex
# Plate-solve the FITS images
export TELESCOP=''
for i in /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits ;do util/wcs_image_calibration.sh $i ;done
# Display the solved FITS images
ds9 -frame lock wcs  wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits  wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits -crosshair 4787.78955 4285.42139 image    wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits -crosshair 4793.26270 4279.97900 image   

./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits  && util/transients/search_for_transients_single_field.sh

REFERENCE_IMAGES=/data_ssd/NMW-TexasTech/reference_imgs  util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg

Don't forget to copy the leading white spaces and change the observatory code! The code 'C32' is 'Ka-Dar Observatory, TAU Station, Nizhny Arkhyz', the code '500' is the geocenter. Make sure there are no trailing white spaces after the observatory code. The string should be exactly 80 characters long to conform to the MPC format.
Mean position:

     TAU0008  C2026 09 04.39905 05 31 54.44 +23 49 50.7          13.1 R      V36

Position measured on individual images:

     TAU0008  C2026 09 04.39871 05 31 54.43 +23 49 50.8          13.1 R      V36
     TAU0008  C2026 09 04.39940 05 31 54.45 +23 49 50.5          13.1 R      V36

You may copy/paste the above measurements to the following online services:
MPChecker (in case the button does not work)
NEOCMTChecker (NEO's and comets)
sat_id2 (artificial satellites; needs at least two observations to work)
fitsblink_satellites (art. sat.; you'll need to save the astrometry as a text file and upload it)

Here is a stub line for reporting a new transient to the TOCP. Don't forget to set the constellation name and the number of days since the last non-detection!

TCP 2026 09 04.3990*  05 31 54.44 +23 49 50.7  13.1 U             Tau       9 0

Don't forget to change the observer code for the AAVSO and VSNET format data!

 **** AAVSO file format ****

#TYPE=EXTENDED
#OBSCODE=SKA
#SOFTWARE=VaST 1.0rc90 transient pipeline
#DELIM=,
#DATE=JD
#NAME,DATE,MAG,MERR,FILT,TRANS,MTYPE,CNAME,CMAG,KNAME,KMAG,AMASS,GROUP,CHART,NOTES
VARIABLE_NAME,2461287.8991,13.08,0.05,CV,NO,STD,ENSEMBLE,na,na,na,na,1,na,NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS


 **** VSNET file format ****

# Here are some valid formatiing examples:
#CETFZ 20230815.9829   <13.5CV NMW
#CETFZ 20230818.9746    12.5CV NMW
#CETFZ 20230819.9732    12.6CV NMW
#TCPJ17453768-1756253 20230831.7290 12.7CV NMW
VARIABLE_NAME 20260904.3991 13.08CV NMW


The AAVSO data should be submitted to https://www.aavso.org/webobs

The VSNET data, depending on how interesting the target is, should be e-mailed to
vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp
vsnet-outburst-wanted@ooruri.kusastro.kyoto-u.ac.jp
vsnet-obs@ooruri.kusastro.kyoto-u.ac.jp
# Time-series data may be sent to  vsnet-campaign-report@ooruri.kusastro.kyoto-u.ac.jp

FITS images used in this processing run:

Field Tau-04-Q2b1x1 reference image: Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Field Tau-04-Q2b1x1 reference image: Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Field Tau-04-Q2b1x1 second-epoch image: Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Field Tau-04-Q2b1x1 second-epoch image: Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
First image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Last  image: 2461287.89939733 04.09.2026 09:34:57.929   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 2
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.65
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  17503
Objects passed selection criteria:  17366
Measurements per detected object (mean, median, min, max):    2.3    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.3    2.0    2    4
Average stars detected per image: 10689.8
Average stars matched: 10349.2 (96.8147 %)
Memory usage VmPeak:   243536 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Sep  4 04:42:33 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
First image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Last  image: 2461287.89939733 04.09.2026 09:34:57.929   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 38
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.31
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 91 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  134172
Objects passed selection criteria:  133702
Measurements per detected object (mean, median, min, max):    2.4    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.4    2.0    2    4
Average stars detected per image: 87674.2
Average stars matched: 83157.2 (94.848 %)
Memory usage VmPeak:   538288 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Sep  4 04:46:14 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Tau-04-Q2b1x1
#######################################
########### Starting Tau-04-Q2b1x1 ###########
Processing Tau-04-Q2b1x1
server tau has sufficient free disk space available: 657362 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 657362 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Small preview (one of the new images): 

Large previews of the second-epoch (new) images:

MAKE_PNG_PLOTS=yes


renamed 'Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.png' -> 'transient_report/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits_preview.png'

Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits


renamed 'Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.png' -> 'transient_report/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits_preview.png'

Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 599.0891
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 758.4070
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 6161.5718
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 2002.9109
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 6808.9518
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 2417.7134
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 10.2849
INFO:                  SECOND_EPOCH__SD_ratio= 0.172
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
ERROR: passing clouds (SD ratio=0.172 soft threshold=0.12)
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     22.2800006866455 / [degC] Focuser temperature
AMBTEMP =                 23.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-04T04:33:58.3917855' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-04T09:33:58.3917855' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61287.3985924884 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-04T09:34:08.2936331' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61287.3987070951 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     83.0763586733007 / [deg] RA of telescope" status=0
Record 32: "DEC     =     22.0001683921136 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     37.7983333333333 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     86.9947222222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.62903474398719 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20458 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20458 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.2800006866455 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.2800006866455 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.2 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                898.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 33.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/d_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits :)

Spent 0.642289 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/d_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     22.1900005340576 / [degC] Focuser temperature
AMBTEMP =                 23.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-04T04:34:57.9297412' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-04T09:34:57.9297412' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61287.3992815856 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-04T09:35:07.8305788' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61287.3993961806 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     83.0763585518801 / [deg] RA of telescope" status=0
Record 32: "DEC     =     22.0001683907889 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     38.0061111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     87.1255555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.62150183579675 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20458 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20458 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.1900005340576 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.1900005340576 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.2 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                898.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 33.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/d_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits :)

Spent 0.862524 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/d_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Previews of the CALIBRATED second-epoch images:


fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits



fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
  
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461287.89870823
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Image size: 937.4'x624.1'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:01.582 +22:01:36.16 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:01.582 +22:01:36.16
Angular distance between the image centers 0.0747 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Image size: 937.4'x624.1'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:31:59.103 +22:02:08.10 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:31:59.103 +22:02:08.10
Angular distance between the image centers 0.0870 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  05:32:01.582 +22:01:36.16
Second-epoch second image center 05:31:59.103 +22:02:08.10
Angular distance between the image centers 0.01305 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.emK4ambh4f
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.JRi2TGCe2n
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits &> /tmp/tmp.5Gf3Oqdmqr
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits &> /tmp/tmp.7n7v6FQrtP
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 22997 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3514 to 91.9479 deg, Dec +16.4790 to +27.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3514 to 91.9479 deg, Dec 16.4790 to 27.2884 deg
Loaded 12406 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8976 out of 10160 total matches.
Matched with Tycho-2 10160 out of 22997 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.969200
a=0.000000 b=1.000000 c=22.969200
From vast_summary.log: estimated ref. image limiting mag.:  -7.65
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.32

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.32

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 22997 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3514 to 91.9479 deg, Dec +16.4790 to +27.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3514 to 91.9479 deg, Dec 16.4790 to 27.2884 deg
Loaded 12406 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8976 out of 10160 total matches.
Matched with Tycho-2 10160 out of 22997 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (aperture=6.0)
Read 20916 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3773 to 91.9061 deg, Dec +16.4876 to +27.3008 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3773 to 91.9061 deg, Dec 16.4876 to 27.3008 deg
Loaded 12329 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8847 out of 10017 total matches.
Matched with Tycho-2 10017 out of 20916 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=5.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 2 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 2.0 pix  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 2.5 pix  fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
 2.5 pix  fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Limiting magnitude estimates:
 15.3 mag.  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 15.2 mag.  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 13.5 mag.  fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
 13.2 mag.  fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
All-image limiting magnitude estimate:  13.2 (SNR )  10.5 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.emK4ambh4f (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2479, bad_region=3694, passed=22997
Got 22997 stars (including 17090 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
util/solve_plate_with_UCAC5 got 22997 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4775 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 4706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4774 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 4705 stars left (next iteration limit 5175)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4705 sigma_overall_arcsec=0.386 sigma_q1_arcsec=0.461 sigma_q2_arcsec=0.374 sigma_q3_arcsec=0.350 sigma_q4_arcsec=0.273 n_q1=1788 n_q2=376 n_q3=1844 n_q4=697 worst_quadrant_to_overall_ratio=1.193
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.JRi2TGCe2n (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2320, bad_region=3377, passed=20916
Got 20916 stars (including 15475 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
util/solve_plate_with_UCAC5 got 20916 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4776 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 4708 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4777 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4708 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Accuracy estimation diagnostic: 4708 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Excluding outliers - 4708 stars left (next iteration limit 5177)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4708 sigma_overall_arcsec=0.515 sigma_q1_arcsec=0.605 sigma_q2_arcsec=0.498 sigma_q3_arcsec=0.464 sigma_q4_arcsec=0.402 n_q1=1784 n_q2=371 n_q3=1863 n_q4=690 worst_quadrant_to_overall_ratio=1.175
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.5Gf3Oqdmqr (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=439, bad_region=1640, passed=5014
Got 5014 stars (including 3033 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat 
util/solve_plate_with_UCAC5 got 5014 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2912 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2866 matched stars entering correct_measured_positions(), 2868 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2866 matched stars entering correct_measured_positions(), 3697 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2912 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2865 matched stars entering correct_measured_positions(), 3697 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Accuracy estimation diagnostic: 2865 matched stars entering correct_measured_positions(), 3697 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Excluding outliers - 2865 stars left (next iteration limit 3152)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=2865 robust_rms=7.442 arcsec worst_quadrant_rms=8.557 arcsec
SIP_REFIT: SIP order 3 trial: matched=2865 robust_rms=0.567 arcsec worst_quadrant_rms=0.742 arcsec
SIP_REFIT: SIP order 5 trial: matched=2865 robust_rms=0.485 arcsec worst_quadrant_rms=0.551 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2865 robust_rms_before=0.955 arcsec robust_rms_before_corrected=0.609 arcsec robust_rms_after=0.485 arcsec worst_quadrant_rms_before=0.748 worst_quadrant_rms_after=0.551
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Image size: 937.9'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:01.553 +22:01:35.34 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 5014 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/correct_sextractor_wcs_catalog_usingxy2sky3883880.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 5, robust RMS 0.955 -> 0.485 arcsec)
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits N_match=2865 sigma_overall_arcsec=0.514 sigma_q1_arcsec=0.480 sigma_q2_arcsec=0.545 sigma_q3_arcsec=0.615 sigma_q4_arcsec=0.476 n_q1=725 n_q2=761 n_q3=615 n_q4=764 worst_quadrant_to_overall_ratio=1.196
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.7n7v6FQrtP (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=412, bad_region=1376, passed=4172
Got 4172 stars (including 2480 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat 
util/solve_plate_with_UCAC5 got 4172 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2388 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2356 matched stars entering correct_measured_positions(), 2356 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2355 matched stars entering correct_measured_positions(), 3050 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2388 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2356 matched stars entering correct_measured_positions(), 3050 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.56" 
Accuracy estimation diagnostic: 2356 matched stars entering correct_measured_positions(), 3050 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Excluding outliers - 2356 stars left (next iteration limit 2590)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: SIP order 2 trial: matched=2356 robust_rms=7.175 arcsec worst_quadrant_rms=8.717 arcsec
SIP_REFIT: SIP order 3 trial: matched=2356 robust_rms=0.526 arcsec worst_quadrant_rms=0.711 arcsec
SIP_REFIT: SIP order 5 trial: matched=2356 robust_rms=0.467 arcsec worst_quadrant_rms=0.557 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2356 robust_rms_before=0.930 arcsec robust_rms_before_corrected=0.592 arcsec robust_rms_after=0.467 arcsec worst_quadrant_rms_before=0.679 worst_quadrant_rms_after=0.557
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Image size: 937.7'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:31:59.073 +22:02:07.46 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 4172 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/correct_sextractor_wcs_catalog_usingxy2sky3884688.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 5, robust RMS 0.930 -> 0.467 arcsec)
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits N_match=2356 sigma_overall_arcsec=0.502 sigma_q1_arcsec=0.510 sigma_q2_arcsec=0.520 sigma_q3_arcsec=0.611 sigma_q4_arcsec=0.459 n_q1=546 n_q2=619 n_q3=499 n_q4=692 worst_quadrant_to_overall_ratio=1.218
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits sigma_overall=0.386 worst_q_ratio=1.193
ref2=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits sigma_overall=0.515 worst_q_ratio=1.175
new1=fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits sigma_overall=0.514 worst_q_ratio=1.196
new2=fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits sigma_overall=0.502 worst_q_ratio=1.218
reference average sigma_overall=0.4505 worst_q_ratio=1.184
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378_astrometric_residuals.png (4705 matched stars from wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035_astrometric_residuals.png (4708 matched stars from wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.47 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672_astrometric_residuals.png (2865 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.41 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673_astrometric_residuals.png (2356 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.40 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits'
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits'
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 17s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 2s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 30785_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
Preparing report for the candidate 30785_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 19272_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 19272_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 3     2026 09 04.39940    2461287.89940    9.72    05:46:56.32 +17:54:32.9   6915 0687   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:46:56.33 +17:54:32.9 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 19s
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
  
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Image size: 937.9'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:01.553 +22:01:35.34 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:01.553 +22:01:35.34
Angular distance between the image centers 0.0747 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Image size: 937.7'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:31:59.073 +22:02:07.46 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:31:59.073 +22:02:07.46
Angular distance between the image centers 0.0870 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  05:32:01.553 +22:01:35.34
Second-epoch second image center 05:31:59.073 +22:02:07.46
Angular distance between the image centers 0.01309 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.Ltw4YaHsZ9
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.tnaM0YE6jp
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits &> /tmp/tmp.xxQ3PjHIKQ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits &> /tmp/tmp.ej1XCsy2Bi
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 167968 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3408 to 91.9478 deg, Dec +16.4791 to +27.2941 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3408 to 91.9478 deg, Dec 16.4791 to 27.2941 deg
Loaded 12414 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7145 out of 10502 total matches.
Matched with Tycho-2 10502 out of 167968 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.825500
a=0.000000 b=1.000000 c=22.825500
From vast_summary.log: estimated ref. image limiting mag.:  -7.31
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.52

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.52

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 167968 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3408 to 91.9478 deg, Dec +16.4791 to +27.2941 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3408 to 91.9478 deg, Dec 16.4791 to 27.2941 deg
Loaded 12414 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7145 out of 10502 total matches.
Matched with Tycho-2 10502 out of 167968 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (aperture=4.5)
Read 163013 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3370 to 91.9475 deg, Dec +16.4845 to +27.3051 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3370 to 91.9475 deg, Dec 16.4845 to 27.3051 deg
Loaded 12419 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7184 out of 10475 total matches.
Matched with Tycho-2 10475 out of 163013 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=4.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 32 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.9 pix  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 1.8 pix  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 2.1 pix  fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
 2.2 pix  fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Limiting magnitude estimates:
 15.5 mag.  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 15.4 mag.  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 13.8 mag.  fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
 13.6 mag.  fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
All-image limiting magnitude estimate:  13.6 (SNR )  13.2 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.Ltw4YaHsZ9 (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=28, blended=21684, bad_region=23036, passed=167940
Got 167940 stars (including 124901 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
util/solve_plate_with_UCAC5 got 167940 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4762 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 4714 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150202 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4763 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150202 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150201 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4714 stars left (next iteration limit 5185)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4714 sigma_overall_arcsec=0.388 sigma_q1_arcsec=0.472 sigma_q2_arcsec=0.371 sigma_q3_arcsec=0.345 sigma_q4_arcsec=0.297 n_q1=1719 n_q2=437 n_q3=1839 n_q4=719 worst_quadrant_to_overall_ratio=1.214
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.tnaM0YE6jp (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=36, blended=20219, bad_region=22244, passed=162977
Got 162977 stars (including 121992 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
util/solve_plate_with_UCAC5 got 162977 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4760 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4706 matched stars entering correct_measured_positions(), 4706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4706 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4760 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Accuracy estimation diagnostic: 4704 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Excluding outliers - 4704 stars left (next iteration limit 5176)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4704 sigma_overall_arcsec=0.497 sigma_q1_arcsec=0.615 sigma_q2_arcsec=0.464 sigma_q3_arcsec=0.445 sigma_q4_arcsec=0.412 n_q1=1720 n_q2=418 n_q3=1843 n_q4=723 worst_quadrant_to_overall_ratio=1.238
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.xxQ3PjHIKQ (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=10, blended=2182, bad_region=11256, passed=46513
Got 46513 stars (including 33773 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat 
util/solve_plate_with_UCAC5 got 46513 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4777 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 4701 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 38096 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4777 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 38096 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 38096 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 
Excluding outliers - 4700 stars left (next iteration limit 5170)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4700 robust_rms=7.408 arcsec worst_quadrant_rms=7.996 arcsec
SIP_REFIT: SIP order 3 trial: matched=4700 robust_rms=0.566 arcsec worst_quadrant_rms=0.751 arcsec
SIP_REFIT: SIP order 5 trial: matched=4700 robust_rms=0.477 arcsec worst_quadrant_rms=0.566 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4700 robust_rms_before=0.482 arcsec robust_rms_before_corrected=0.515 arcsec robust_rms_after=0.477 arcsec worst_quadrant_rms_before=0.572 worst_quadrant_rms_after=0.566
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.572 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits N_match=4700 sigma_overall_arcsec=0.544 sigma_q1_arcsec=0.478 sigma_q2_arcsec=0.610 sigma_q3_arcsec=0.633 sigma_q4_arcsec=0.485 n_q1=1266 n_q2=1143 n_q3=1027 n_q4=1264 worst_quadrant_to_overall_ratio=1.164
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ej1XCsy2Bi (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=1, no_mag_err=0, low_SNR=18, blended=2078, bad_region=11168, passed=42930
Got 42930 stars (including 30384 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat 
util/solve_plate_with_UCAC5 got 42930 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4776 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 4700 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4700 matched stars entering correct_measured_positions(), 34539 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4776 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4698 matched stars entering correct_measured_positions(), 34539 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Accuracy estimation diagnostic: 4698 matched stars entering correct_measured_positions(), 34539 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Excluding outliers - 4698 stars left (next iteration limit 5170)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4698 robust_rms=7.380 arcsec worst_quadrant_rms=8.301 arcsec
SIP_REFIT: SIP order 3 trial: matched=4698 robust_rms=0.532 arcsec worst_quadrant_rms=0.734 arcsec
SIP_REFIT: SIP order 5 trial: matched=4698 robust_rms=0.476 arcsec worst_quadrant_rms=0.574 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4698 robust_rms_before=0.478 arcsec robust_rms_before_corrected=0.535 arcsec robust_rms_after=0.476 arcsec worst_quadrant_rms_before=0.588 worst_quadrant_rms_after=0.574
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.588 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits N_match=4698 sigma_overall_arcsec=0.541 sigma_q1_arcsec=0.504 sigma_q2_arcsec=0.607 sigma_q3_arcsec=0.621 sigma_q4_arcsec=0.465 n_q1=1190 n_q2=1145 n_q3=1010 n_q4=1353 worst_quadrant_to_overall_ratio=1.149
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:13:35.61 +21:00:08.0:  13.16 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:20:07.46 +20:09:47.4:  13.27 +/- 0.03  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:24:16.92 +20:08:47.7:  10.44 +/- 0.00  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:13:35.61 +21:00:08.0:  13.21 +/- 0.03  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:20:07.46 +20:09:47.4:  13.31 +/- 0.03  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:24:16.92 +20:08:47.7:  10.45 +/- 0.00  detection
Forced photometry reference-image weighted average:  13.29 +/- 0.02
Forced photometry reference-image weighted average:  13.18 +/- 0.02
Forced photometry reference-image weighted average:  10.44 +/- 0.00
Forced photometry filter REJECTED candidate at 05:20:07.46 +20:09:47.4: ref_mag=13.29 +/- 0.02 new_mean_mag=13.1035 delta=0.18 (need > 0.90)
Forced photometry filter REJECTED candidate at 05:13:35.61 +21:00:08.0: ref_mag=13.18 +/- 0.02 new_mean_mag=13.2372 delta=-0.06 (need > 0.90)
Forced photometry filter REJECTED candidate at 05:24:16.92 +20:08:47.7: ref_mag=10.44 +/- 0.00 new_mean_mag=10.5096 delta=-0.07 (need > 0.90)
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:45:54.28 +26:05:59.8:  12.70 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:31:54.44 +23:49:50.7:  16.18 +/- 99.00  upperlimit
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:45:54.28 +26:05:59.8:  12.70 +/- 0.02  detection
Forced photometry reference-image weighted average:  12.70 +/- 0.01
Forced photometry filter REJECTED candidate at 05:45:54.28 +26:05:59.8: ref_mag=12.70 +/- 0.01 new_mean_mag=12.9364 delta=-0.23 (need > 0.90)
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:31:54.44 +23:49:50.7:  16.07 +/- 99.00  upperlimit
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:37:40.16 +22:58:29.2:  13.59 +/- 0.04  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:37:40.16 +22:58:29.2:  13.60 +/- 0.04  detection
Forced photometry reference-image weighted average:  13.60 +/- 0.03
Forced photometry filter REJECTED candidate at 05:37:40.16 +22:58:29.2: ref_mag=13.60 +/- 0.03 new_mean_mag=13.6371 delta=-0.04 (need > 0.90)
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:13:05.02 +20:18:41.3:  99.00 +/- 99.00  bad_region
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:13:05.02 +20:18:41.3:  13.25 +/- 0.03  detection
Forced photometry reference-image weighted average:  13.25 +/- 0.03
Forced photometry filter REJECTED candidate at 05:13:05.02 +20:18:41.3: ref_mag=13.25 +/- 0.03 new_mean_mag=13.0221 delta=0.23 (need > 0.90)
Adding exclusion_list_local.txt__out193776.dat to exclusion_list_local.txt
make_report_in_HTML.sh Phase 1 (network queries): 11s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 4s
  
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Considering the candidate 189049_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 189049_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 1     2026 09 04.39871    2461287.89871    13.27    05:13:35.81 +21:00:08.1   2176 2649   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 2     2026 09 04.39940    2461287.89940    13.19    05:13:35.41 +21:00:07.9   2181 2643   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

  
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Considering the candidate 189050_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 189050_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 1     2026 09 04.39871    2461287.89871    13.21    05:20:07.50 +20:09:47.8   3084 2107   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 2     2026 09 04.39940    2461287.89940    12.98    05:20:07.41 +20:09:47.0   3090 2101   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

  
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Considering the candidate 189057_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 189057_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.01    05:46:25.19 +25:17:28.0   6794 5165   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:46:25.17 +25:17:27.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 189068_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 189068_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    11.99    05:44:45.66 +17:48:35.4   6600 0626   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:44:45.65 +17:48:34.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 189073_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 189073_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 1     2026 09 04.39871    2461287.89871    10.52    05:24:16.92 +20:08:48.1   3675 2080   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 2     2026 09 04.39940    2461287.89940    10.49    05:24:16.93 +20:08:47.3   3680 2075   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

  
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Considering the candidate 189274_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
Preparing report for the candidate 189274_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
  
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Considering the candidate 190919_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 190919_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    11.79    05:41:56.13 +22:38:55.8   6182 3559   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:41:56.15 +22:38:55.9 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 191094_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 191094_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.05    05:39:10.47 +23:20:17.0   5797 3975   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:39:10.51 +23:20:17.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 191635_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 191635_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.42    05:30:50.70 +22:27:24.7   4634 3452   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:30:50.72 +22:27:24.6 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 192579_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 192579_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.44    05:43:00.27 +18:59:10.1   6342 1341   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:43:00.27 +18:59:10.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 192602_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 192602_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.61    05:20:11.73 +19:34:17.3   3088 1742   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:20:11.72 +19:34:16.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 192615_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 192615_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.96    05:40:12.81 +24:31:54.0   5942 4697   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:40:12.77 +24:31:53.3 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 192781_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 192781_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.70    05:39:54.82 +23:40:59.2   5900 4184   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:39:54.80 +23:40:59.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 192929_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 192929_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.65    05:45:37.04 +25:05:44.0   6684 5045   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:45:37.01 +25:05:43.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 193230_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 193230_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 1     2026 09 04.39871    2461287.89871    12.90    05:45:54.29 +26:05:59.7   6714 5662   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 2     2026 09 04.39940    2461287.89940    12.98    05:45:54.26 +26:05:59.9   6719 5657   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

  
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Considering the candidate 193598_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 193598_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.92    05:42:11.83 +22:40:39.7   6218 3576   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:42:11.84 +22:40:39.6 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 193701_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 193701_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.94    05:24:13.06 +20:07:33.7   3671 2062   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:24:13.05 +20:07:33.4 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 193776_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
Preparing report for the candidate 193776_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
  
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Considering the candidate 193947_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 193947_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.19    05:28:32.27 +22:45:15.4   4315 3637   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:28:32.27 +22:45:16.0 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194025_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194025_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.18    05:35:02.34 +24:18:47.9   5229 4567   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:35:02.31 +24:18:48.0 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194121_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194121_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.13    05:20:15.00 +19:35:45.5   3096 1757   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:20:14.96 +19:35:45.3 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194203_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194203_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.11    05:44:42.33 +23:00:05.6   6567 3774   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:44:42.30 +23:00:05.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194463_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194463_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.37    05:30:41.15 +22:21:33.5   4610 3393   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:30:41.21 +22:21:34.4 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194660_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194660_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.02    05:32:41.39 +20:56:06.2   4879 2529   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:32:41.36 +20:56:04.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194774_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194774_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.76    05:31:11.01 +20:10:05.2   4660 2068   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:31:10.98 +20:10:04.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 194806_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 194806_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.53    05:49:59.78 +22:34:34.8   7311 3526   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:49:59.71 +22:34:34.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 195190_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 195190_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 1     2026 09 04.39871    2461287.89871    13.63    05:37:40.23 +22:58:29.0   5582 3761   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 2     2026 09 04.39940    2461287.89940    13.65    05:37:40.10 +22:58:29.4   5587 3756   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

  
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Considering the candidate 195248_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 195248_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.36    05:50:03.82 +19:09:38.1   7355 1454   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:50:03.81 +19:09:38.8 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 195290_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 195290_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    13.43    05:41:06.91 +24:22:15.1   6066 4600   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:41:06.96 +24:22:16.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 120168_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 120168_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 3     2026 09 04.39940    2461287.89940    9.78    05:46:56.30 +17:54:33.1   6915 0687   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:46:56.32 +17:54:33.0 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 14597_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 14597_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39940    2461287.89940    12.76    05:38:00.43 +26:13:08.3   5643 5722   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

**** FOUND  05:38:00.40 +26:13:08.0 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 180008_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673
The candidate 180008_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673 did not pass the final checks
Discovery image 2     2026 09 04.39871    2461287.89871    13.00    05:13:05.05 +20:18:41.6   2084 2233   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Discovery image 3     2026 09 04.39940    2461287.89940    13.08    05:13:04.99 +20:18:41.0   2090 2227   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 15s
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
05:31:54.44 +23:49:50.7
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-09-04_CI_Tau-04-Q2b1x1_043959_TTUQ2b1x1_3639304_aeacSuLg/monitoring_positions.txt
Read 46523 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.1998 to 91.6863 deg, Dec +16.5437 to +27.2991 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.1998 to 91.6863 deg, Dec 16.5437 to 27.2991 deg
Loaded 12016 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 9042 out of 9629 total matches.
Matched with Tycho-2 9629 out of 46523 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits
Observation time (mid-exposure, UTC): JD 2461287.89871 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 83.00559 deg  Dec= +22.02564 deg
Frame center: alt= +38.161 deg  az= 87.684 deg  airmass= 1.6147
Header cross-check: CENTALT= 37.798 deg (difference +0.363 deg)
Header cross-check: AIRMASS= 1.6290 (we compute 1.6147)
Airmass zero-point fit: REJECT_K_RANGE  k= +0.6523 +/- 0.0234 mag/airmass  N= 4993  airmass span 1.3600-1.9859  scatter 0.2369 mag
Source monitoring: airmass zero-point for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits: REJECT_K_RANGE +1.122944 -0.652264 1.6147 +0.6523 4993 0.6259 0.2369 1.3600 1.9859
Forced photometry (list mode): image=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits list=monitoring_pixlist3641845.tmp aperture=4.4
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.187400
Forced photometry: center=(3293.46, 4204.55) aperture=4.4
Annulus: inner=8.80 outer=22.00
Background annulus: 1277 pixels
Iterative clipping converged after 1 iterations, 1276/1277 pixels remain
SExtractor background: mode=6120.05 median=6113.00 mean=6108.30 sigma=148.04 -> bg=6120.05 (1276 pixels)
Aperture sum=205420.36 N_eff=15.2053
Net flux=112363.14 noise=577.26 SNR=194.65
Instrumental magnitude: -12.6266
Calibrated magnitude: 9.5608
Source monitoring: 1 position(s) measured on wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-33-58_20.00sec_-0.00C_LIGHT_0672.fits (aperture 4.4 pix)
Read 42949 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.1996 to 91.6866 deg, Dec +16.5623 to +27.3092 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.1996 to 91.6866 deg, Dec 16.5623 to 27.3092 deg
Loaded 12007 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 9181 out of 9755 total matches.
Matched with Tycho-2 9755 out of 42949 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Observation time (mid-exposure, UTC): JD 2461287.89940 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 82.99526 deg  Dec= +22.03457 deg
Frame center: alt= +38.380 deg  az= 87.789 deg  airmass= 1.6069
Header cross-check: CENTALT= 38.006 deg (difference +0.374 deg)
Header cross-check: AIRMASS= 1.6215 (we compute 1.6069)
Airmass zero-point fit: OK  k= +0.4342 +/- 0.0245 mag/airmass  N= 5075  airmass span 1.3534-2.0156  scatter 0.2539 mag
Source monitoring: airmass zero-point for wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits: OK +0.757604 -0.434178 1.6069 +0.4342 5075 0.6622 0.2539 1.3534 2.0156
Forced photometry (list mode): image=wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits list=monitoring_pixlist3641845.tmp aperture=4.5
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.147900
Forced photometry: center=(3299.04, 4198.90) aperture=4.5
Annulus: inner=9.00 outer=22.50
Background annulus: 1344 pixels
Iterative clipping converged after 0 iterations, 1344/1344 pixels remain
SExtractor background: mode=9181.50 median=9216.50 mean=9239.84 sigma=280.27 -> bg=9181.50 (1344 pixels)
Aperture sum=229305.90 N_eff=15.9043
Net flux=83280.51 noise=1117.73 SNR=74.51
Instrumental magnitude: -12.3014
Calibrated magnitude: 9.8465
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits
Source monitoring: 1 position(s) measured on wcs_fd_Tau-04-Q2b1x1_2026-09-04_04-34-57_20.00sec_-0.00C_LIGHT_0673.fits (aperture 4.5 pix)
########### Completed Tau-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
05:21:07.64 +23:38:19.8
05:21:07.64 +23:38:19.8
05:31:54.44 +23:49:50.7
###################################################################################
05:21:07.64 +23:38:19.8  -- not an asteroid (will add it to exclusion list)
05:21:07.64 +23:38:19.8  -- not an asteroid (will add it to exclusion list)
05:31:54.44 +23:49:50.7  -- asteroid (will NOT add it to exclusion list)
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
05:21:07.64 +23:38:19.8  -- does not seem to be a hot pixel (will add it to exclusion list)
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
05:21:07.64 +23:38:19.8  -- a known object
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
1 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN= NO   ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Adding the following to the exclusion list ####
05:21:07.64 +23:38:19.8
####################################################
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461287.89870823 -observatory V36
11:20:13.69 +05:44:03.4 Mercury (-1.1mag)
13:28:33.40 -13:23:37.4 Venus (-4.7mag)
07:06:07.56 +23:09:18.6 Mars (1.2mag)
09:06:38.93 +17:07:38.8 Jupiter (-1.8mag)
00:52:22.91 +02:43:16.4 Saturn (0.5mag)
04:13:38.22 +21:01:51.6 Uranus (5.7mag)
00:14:01.02 -00:01:23.8 Neptune (7.7mag)
20:25:47.90 -23:38:55.6 Pluto (14.5mag)
04:43:45.57 +27:09:31.2 Moon (-10.3mag)
-rw-r--r-- 1 apache apache 363 Sep  4 04:42 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461287.89870823:
09:06:34.30 +17:08:02.5 Io (6.2mag)
09:06:30.26 +17:08:22.0 Europa (6.3mag)
09:06:41.20 +17:07:30.5 Ganymede (5.7mag)
09:06:19.23 +17:09:13.5 Callisto (6.9mag)
09:04:19.86 +17:22:49.8 Himalia (15.7mag)
09:06:39.03 +17:07:38.6 Thebe (16.6mag)
09:03:58.55 +17:16:59.7 Elara (17.7mag)
09:10:36.32 +16:36:07.6 Pasiphae (17.9mag)
09:07:56.52 +17:24:38.1 Carme (19.0mag)
00:52:32.08 +02:43:21.7 Titan (8.3mag)
00:52:26.61 +02:42:58.5 Rhea (9.6mag)
00:52:45.26 +02:45:57.1 Iapetus (11.0mag)
00:52:27.88 +02:42:31.8 Hyperion (14.3mag)
00:51:12.76 +02:33:17.3 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  4 04:42 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461287.89870823:
21:41:16.54 -01:58:47.7 JWST
17:16:07.80 +38:31:13.3 Chandra
06:41:14.41 +10:29:46.1 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  4 04:42 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461287.89870823 -observatory V36
03:38:35.94 +19:12:01.9 17.4mag P/1996 R2 (Lagerkvist)
18:01:58.81 -34:15:49.4 14.3mag P/2010 H2 (Vales)
07:17:14.60 -70:08:37.6 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:15:20.08 +33:37:33.6 17.7mag C/2017 K2 (PANSTARRS)
04:46:58.03 +45:01:52.6 15.7mag P/2021 N1 (ZTF)
04:46:58.06 +45:01:52.4 15.7mag P/2021 N1 (ZTF)
22:15:49.28 +29:00:55.6 17.4mag C/2022 E2 (ATLAS)
07:07:56.45 +26:02:01.6 16.9mag C/2022 N2 (PANSTARRS)
10:46:49.32 +27:19:57.0 17.1mag C/2022 QE78 (ATLAS)
09:46:49.17 +05:14:54.0 18.0mag C/2022 R6 (PANSTARRS)
15:30:24.55 -15:23:39.3 14.8mag C/2023 R1 (PANSTARRS)
08:35:48.58 +32:43:05.5 15.7mag C/2024 E1 (Wierzchos)
15:06:16.09 +15:21:24.8 17.9mag C/2024 G6 (ATLAS)
18:35:33.16 +43:16:32.9 13.7mag C/2024 J3 (ATLAS)
20:30:11.97 +49:26:23.2 17.4mag C/2024 R4 (PANSTARRS)
05:34:00.70 -12:59:25.2 15.1mag C/2024 T5 (ATLAS)
07:10:34.40 +19:07:05.9 17.8mag C/2025 J1 (Borisov)
11:13:21.13 +18:59:35.8 16.9mag C/2025 V2 (Rankin)
13:17:16.36 +00:20:54.4 16.8mag C/2025 Y1 (ATLAS)
16:34:11.29 +74:29:39.9 16.2mag C/2026 A2 (Bok)
03:07:05.08 +46:12:51.9 17.4mag C/2026 B2 (Sun-Gao)
12:10:36.02 +11:02:40.8 17.5mag A/2026 E1
22:23:35.17 -34:47:12.2 13.3mag 10P/Tempel
11:46:14.36 -05:15:08.5 16.3mag 29P/Schwassmann-Wachmann
12:02:44.06 -04:10:28.5 17.6mag 63P/Wild
00:46:12.46 -06:53:04.0 15.4mag 65P/Gunn
06:33:39.41 +19:27:55.6 17.1mag 78P/Gehrels
03:16:56.93 +14:57:10.0 16.7mag 88P/Howell
05:28:40.54 +27:31:02.8 17.5mag 112P/Urata-Niijima
07:23:07.40 +25:32:13.2 17.9mag 114P/Wiseman-Skiff
10:21:23.92 +21:28:37.6 14.8mag 123P/West-Hartley
12:40:15.72 -20:19:17.7 17.4mag 124P/Mrkos
06:13:51.16 +20:43:31.3 15.9mag 128P/Shoemaker-Holt
23:53:48.90 +02:31:23.8 17.3mag 139P/Vaisala-Oterma
02:42:16.84 -17:54:10.5 15.4mag 161P/Hartley-IRAS
09:44:13.60 +15:45:28.4 12.0mag 169P/NEAT
03:21:48.94 +08:41:58.4 14.4mag 220P/McNaught
04:40:09.90 +35:23:43.2 15.2mag 260P/McNaught
08:24:01.87 +35:59:53.8 17.3mag 295P/LINEAR
15:23:24.14 +00:04:38.4 17.9mag 391P/Kowalski
09:25:16.25 +16:59:56.2 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.0K Sep  4 04:42 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
-rw-r--r-- 1 apache apache 5.7K Sep  4 04:42 asassn_transients_list.txt
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Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Sep  4 04:42 tocp_transients_list.txt
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Truncated list of recent TNS transients from https://www.wis-tns.org/ :
02:32:12.791 -22:10:48.74  AT 2026yfp  2026-07-20.79 19.5
01:41:52.083 -42:11:48.39  AT 2026yfo  2026-07-20.75 20.09
23:56:49.152 -38:37:39.87  AT 2026yfn  2026-07-27.78 19.61
23:42:35.374 -40:35:39.21  AT 2026yfm  2026-08-06.67 20.01
00:59:35.904 -40:19:34.17  AT 2026yfl  2026-08-06.70 20.35
00:09:47.092 -52:13:41.85  AT 2026yfk  2026-08-06.71 19.78
01:29:51.734 -23:34:18.41  AT 2026yfj  2026-08-06.73 19.55
02:10:09.536 -24:08:21.00  AT 2026yfi  2026-07-20.77 20.04
03:25:21.580 -50:44:20.31  AT 2026yfh  2026-08-06.77 20.01
04:26:28.926 -21:02:33.55  AT 2026yfg  2026-08-06.78 19.34
02:45:19.042 -55:38:20.40  AT 2026yff  2026-08-06.78 19.68
03:57:14.486 -09:10:35.02  AT 2026yfe  2026-08-06.79 19.58
04:48:25.059 -18:04:11.02  AT 2026yfd  2026-08-06.79 19.24
03:12:28.807 -53:09:31.17  AT 2026yfc  2026-08-06.80 20.22
03:12:34.990 -53:15:23.14  AT 2026yfb  2026-08-06.80 19.82
03:43:17.655 -55:51:34.17  AT 2026yfa  2026-08-06.80 19.84
03:12:29.529 -57:12:32.15  AT 2026yez  2026-08-06.80 20.05
01:49:11.660 -00:28:07.04  AT 2026yey  2026-08-06.75 19.84
23:24:50.856 -31:38:42.31  AT 2026yex  2026-08-06.66 20.16
23:32:24.516 -40:47:17.40  AT 2026yew  2026-08-07.67 20.46
-rw-r--r-- 1 apache apache 88K Sep  4 04:42 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Fri Sep  4 04:42:06 CDT 2026
=======================================
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 8s (0.13 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 69s (1.15 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 27s (0.45 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 6s (0.10 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 19s (0.32 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 131s (2.18 min)
TIMING SExtractor: 24 seconds
TIMING matching_and_photometry: 25 seconds
TIMING lightcurve_write: 3 seconds
TIMING select_aperture: 30 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 98s (1.63 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 2s (0.03 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 48s (0.80 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 3s (0.05 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 16s (0.27 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 168s (2.80 min)
FIELD_Tau-04-Q2b1x1: 321s (5.35 min)
=======================================
TOTAL_RUNTIME: 323s (5.38 min)
Finished: Fri Sep  4 04:47:29 CDT 2026