This analysis is done by the script util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU
The list of candidates will appear below. Please manually reload the page every few minutes untill the 'Processing complete' message appears.
Mean magnitude and position on the discovery images:
2026 08 31.3426 2461283.8426 13.86 02:56:54.88 +15:56:47.0
161.89682 -37.25632 galactic Ari Second-epoch detections are separated by 2.0" and 7.2 pix
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.149 Medusa 0 -0 0 14.1 0 0
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:56:54.88 +15:56:47.0: 16.12 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:56:54.88 +15:56:47.0: 16.11 +/- 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 atlasAladin LiteSNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.
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:
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 08 31.3426* 02 56 54.88 +15 56 47.0 13.9 U Ari 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,2461283.8426,13.86,0.05,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 20260831.3426 13.86CV 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 08 31.3426 2461283.8426 14.29 02:34:35.33 +14:10:20.1
157.33364 -41.70717 galactic Ari Second-epoch detections are separated by 2.3" and 7.4 pix
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.257 Silesia -1 0 1 14.7 -0 -0
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:34:35.33 +14:10:20.1: 16.28 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:34:35.33 +14:10:20.1: 16.28 +/- 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 atlasAladin LiteSNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.
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:
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 08 31.3426* 02 34 35.33 +14 10 20.1 14.3 U Ari 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,2461283.8426,14.29,0.05,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 20260831.3426 14.29CV 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
## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref. image: 2461049.65708573 09.01.2026 03:46:02.207 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
First image: 2461049.65708573 09.01.2026 03:46:02.207 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Last image: 2461283.84291728 31.08.2026 08:13:38.053 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.: -7.56
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: 4 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): 6007
Objects passed selection criteria: 5967
Measurements per detected object (mean, median, min, max): 2.5 2.0 2 4
Measurements per selected object (mean, median, min, max): 2.5 2.0 2 4
Average stars detected per image: 3978
Average stars matched: 3737 (93.9417 %)
Memory usage VmPeak: 232500 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on Mon Aug 24 15:05:05 CDT 2026
VaST build number 1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on Mon Aug 31 03:49:52 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: 2461049.65708573 09.01.2026 03:46:02.207 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
First image: 2461049.65708573 09.01.2026 03:46:02.207 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Last image: 2461283.84291728 31.08.2026 08:13:38.053 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 8
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.: -7.27
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: 13 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): 35230
Objects passed selection criteria: 35127
Measurements per detected object (mean, median, min, max): 2.7 2.0 2 4
Measurements per selected object (mean, median, min, max): 2.7 2.0 2 4
Average stars detected per image: 24766.5
Average stars matched: 23126.2 (93.3771 %)
Memory usage VmPeak: 257812 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on Mon Aug 24 15:05:05 CDT 2026
VaST build number 1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on Mon Aug 31 03:51:04 CDT 2026
Host name: tau
############################################################
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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
SExtractor catalog cache: saved Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.cat to cache
SExtractor catalog cache: saved Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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: 2461283.84232686
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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits exists and is non-empty
wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits exists and is non-empty
wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits exists and is non-empty
wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (1st reference image)
verification OK: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Image size: 941.6'x627.0' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 02:40:00.532 +13:59:54.76 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_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits (1st new image)
verification OK: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Image size: 937.2'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: 02:39:42.701 +14:03:32.08 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:40:00.532 +13:59:54.76
Second-epoch image center 02:39:42.701 +14:03:32.08
Angular distance between the image centers 0.0940 deg.
Soft limit: 0.50 deg. Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits (2nd new image)
verification OK: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Image size: 937.2'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: 02:39:45.564 +14:03:46.83 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:40:00.532 +13:59:54.76
Second-epoch image center 02:39:45.564 +14:03:46.83
Angular distance between the image centers 0.0884 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 02:39:42.701 +14:03:32.08
Second-epoch second image center 02:39:45.564 +14:03:46.83
Angular distance between the image centers 0.01228 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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits &> /tmp/tmp.5PQ2SELZ19
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits &> /tmp/tmp.xGpAAa76bR
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits &> /tmp/tmp.EZhEfAm85K
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits &> /tmp/tmp.aBTAj8ZBrg
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Calibrating the magnitude scale
Found non-empty wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
Found non-empty wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
The reference image (wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits) and catalog (wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat) found
'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat' -> 'wcsmag.cat'
Read 7398 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7516 to 48.3015 deg, Dec +8.6571 to +19.2857 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 31.7516 to 48.3015 deg, Dec 8.6571 to 19.2857 deg
Loaded 4349 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): 3551 out of 3736 total matches.
Matched with Tycho-2 3736 out of 7398 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.943200
a=0.000000 b=1.000000 c=22.943200
From vast_summary.log: estimated ref. image limiting mag.: -7.56
Updating vast_summary.log: Estimated ref. image limiting mag.: 15.38
Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed! =)
Estimated ref. image limiting mag.: 15.38
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7398 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7516 to 48.3015 deg, Dec +8.6571 to +19.2857 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 31.7516 to 48.3015 deg, Dec 8.6571 to 19.2857 deg
Loaded 4349 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): 3551 out of 3736 total matches.
Matched with Tycho-2 3736 out of 7398 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Forced-photometry filter: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits -> calib.txt_param_ref_wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (aperture=6.0)
Read 7374 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7516 to 48.3014 deg, Dec +8.6570 to +19.2905 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 31.7516 to 48.3014 deg, Dec 8.6570 to 19.2905 deg
Loaded 4352 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): 3558 out of 3742 total matches.
Matched with Tycho-2 3742 out of 7374 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Forced-photometry filter: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits -> calib.txt_param_ref_wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits (aperture=6.0)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering. (Hard limit: 10000)
Median FWHM seeing for isolated stars:
2.0 pix Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
2.0 pix Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
2.2 pix fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
2.3 pix fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Limiting magnitude estimates:
15.4 mag. Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
15.4 mag. Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
14.1 mag. fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
14.1 mag. fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
All-image limiting magnitude estimate: 14.1 (SNR ) 11.2 (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.5PQ2SELZ19 (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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits' -> 'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS_IMAGE_NAME=wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS-calibrated image found: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Checking if the catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits alredy exist and is non-empty...
Catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS catalog name: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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=508, bad_region=1667, passed=7398
Got 7398 stars (including 5327 good ones) from the SExtractor catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
util/solve_plate_with_UCAC5 got 7398 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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4877 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 4866 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 6080 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4877 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 6080 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25"
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 6080 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25"
Excluding outliers - 4866 stars left (next iteration limit 5352)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits N_match=4866 sigma_overall_arcsec=0.276 sigma_q1_arcsec=0.342 sigma_q2_arcsec=0.255 sigma_q3_arcsec=0.250 sigma_q4_arcsec=0.229 n_q1=1710 n_q2=892 n_q3=1393 n_q4=871 worst_quadrant_to_overall_ratio=1.238
The image catalog is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits -region wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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.xGpAAa76bR (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/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits' -> 'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS_IMAGE_NAME=wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS-calibrated image found: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Checking if the catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits alredy exist and is non-empty...
Catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS catalog name: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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=503, bad_region=1672, passed=7374
Got 7374 stars (including 5304 good ones) from the SExtractor catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat
util/solve_plate_with_UCAC5 got 7374 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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4878 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4868 matched stars entering correct_measured_positions(), 4868 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4868 matched stars entering correct_measured_positions(), 6054 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4878 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4868 matched stars entering correct_measured_positions(), 6054 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26"
Accuracy estimation diagnostic: 4868 matched stars entering correct_measured_positions(), 6054 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26"
Excluding outliers - 4868 stars left (next iteration limit 5354)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits N_match=4868 sigma_overall_arcsec=0.289 sigma_q1_arcsec=0.350 sigma_q2_arcsec=0.268 sigma_q3_arcsec=0.262 sigma_q4_arcsec=0.249 n_q1=1712 n_q2=887 n_q3=1379 n_q4=890 worst_quadrant_to_overall_ratio=1.209
The image catalog is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits -region wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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.EZhEfAm85K (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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS_IMAGE_NAME=wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS-calibrated image found: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Checking if the catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits alredy exist and is non-empty...
Catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS catalog name: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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=273, bad_region=681, passed=2925
Got 2925 stars (including 2029 good ones) from the SExtractor catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat
util/solve_plate_with_UCAC5 got 2925 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 1985 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1981 matched stars entering correct_measured_positions(), 1982 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1981 matched stars entering correct_measured_positions(), 2356 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 1984 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1980 matched stars entering correct_measured_positions(), 2356 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37"
Accuracy estimation diagnostic: 1980 matched stars entering correct_measured_positions(), 2356 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37"
Excluding outliers - 1980 stars left (next iteration limit 2179)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: SIP order 2 trial: matched=1980 robust_rms=6.589 arcsec worst_quadrant_rms=8.856 arcsec
SIP_REFIT: SIP order 3 trial: matched=1980 robust_rms=0.473 arcsec worst_quadrant_rms=0.567 arcsec
SIP_REFIT: SIP order 5 trial: matched=1980 robust_rms=0.372 arcsec worst_quadrant_rms=0.412 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1980 robust_rms_before=1.003 arcsec robust_rms_before_corrected=0.396 arcsec robust_rms_after=0.372 arcsec worst_quadrant_rms_before=0.430 worst_quadrant_rms_after=0.412
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.430 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits N_match=1980 sigma_overall_arcsec=0.412 sigma_q1_arcsec=0.355 sigma_q2_arcsec=0.394 sigma_q3_arcsec=0.442 sigma_q4_arcsec=0.422 n_q1=618 n_q2=352 n_q3=610 n_q4=400 worst_quadrant_to_overall_ratio=1.073
The image catalog is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits -region wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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.aBTAj8ZBrg (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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS_IMAGE_NAME=wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS-calibrated image found: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Checking if the catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits alredy exist and is non-empty...
Catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS catalog name: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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=263, bad_region=680, passed=2980
Got 2980 stars (including 2091 good ones) from the SExtractor catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat
util/solve_plate_with_UCAC5 got 2980 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 2047 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2044 matched stars entering correct_measured_positions(), 2044 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2044 matched stars entering correct_measured_positions(), 2412 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 2046 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2043 matched stars entering correct_measured_positions(), 2412 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33"
Accuracy estimation diagnostic: 2043 matched stars entering correct_measured_positions(), 2412 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33"
Excluding outliers - 2043 stars left (next iteration limit 2248)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: SIP order 2 trial: matched=2043 robust_rms=6.519 arcsec worst_quadrant_rms=8.921 arcsec
SIP_REFIT: SIP order 3 trial: matched=2043 robust_rms=0.460 arcsec worst_quadrant_rms=0.583 arcsec
SIP_REFIT: SIP order 5 trial: matched=2043 robust_rms=0.344 arcsec worst_quadrant_rms=0.380 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2043 robust_rms_before=1.000 arcsec robust_rms_before_corrected=0.343 arcsec robust_rms_after=0.344 arcsec worst_quadrant_rms_before=0.376 worst_quadrant_rms_after=0.380
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.376 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits N_match=2043 sigma_overall_arcsec=0.372 sigma_q1_arcsec=0.326 sigma_q2_arcsec=0.357 sigma_q3_arcsec=0.401 sigma_q4_arcsec=0.379 n_q1=657 n_q2=357 n_q3=627 n_q4=402 worst_quadrant_to_overall_ratio=1.078
The image catalog is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits -region wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits to local_wcs_cache/
'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits' -> 'local_wcs_cache/wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits'
Saving the final (post-refit) wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits to local_wcs_cache/
'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits' -> 'local_wcs_cache/wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits'
Saving the final (post-refit) wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits to local_wcs_cache/
'wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits' -> 'local_wcs_cache/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits'
Saving the final (post-refit) wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits to local_wcs_cache/
'wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits' -> 'local_wcs_cache/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits sigma_overall=0.276 worst_q_ratio=1.238
ref2=Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits sigma_overall=0.289 worst_q_ratio=1.209
new1=fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits sigma_overall=0.412 worst_q_ratio=1.073
new2=fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits sigma_overall=0.372 worst_q_ratio=1.078
reference average sigma_overall=0.2825 worst_q_ratio=1.2235
warn-on-ratio threshold: 2.0x reference
###################################
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117_astrometric_residuals.png (4866 matched stars from wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.24 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118_astrometric_residuals.png (4868 matched stars from wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.26 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400_astrometric_residuals.png (1980 matched stars from wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401_astrometric_residuals.png (2043 matched stars from wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.32 arcsec)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits'
Saving fully-calibrated image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits'
Preparing the HTML report for the field Ari-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Ari-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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
SExtractor catalog cache: saved Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.cat to cache
SExtractor catalog cache: saved Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Creating symlink local_wcs_cache/wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Creating symlink local_wcs_cache/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Creating symlink local_wcs_cache/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits exists and is non-empty
wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits exists and is non-empty
wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits exists and is non-empty
wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (1st reference image)
verification OK: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Image size: 941.6'x627.0' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 02:40:00.532 +13:59:54.76 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_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits (1st new image)
verification OK: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Image size: 937.2'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: 02:39:42.701 +14:03:32.08 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:40:00.532 +13:59:54.76
Second-epoch image center 02:39:42.701 +14:03:32.08
Angular distance between the image centers 0.0940 deg.
Soft limit: 0.50 deg. Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits (2nd new image)
verification OK: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Image size: 937.2'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: 02:39:45.564 +14:03:46.83 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:40:00.532 +13:59:54.76
Second-epoch image center 02:39:45.564 +14:03:46.83
Angular distance between the image centers 0.0884 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 02:39:42.701 +14:03:32.08
Second-epoch second image center 02:39:45.564 +14:03:46.83
Angular distance between the image centers 0.01228 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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits &> /tmp/tmp.jFl26OZT6I
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits &> /tmp/tmp.fT6niYlFlA
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits &> /tmp/tmp.hV0bW1AjB0
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits &> /tmp/tmp.HZmu2ysNdu
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Calibrating the magnitude scale
Found non-empty wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
Found non-empty wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits and wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
The reference image (wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits) and catalog (wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat) found
'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat' -> 'wcsmag.cat'
Read 42040 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7291 to 48.3263 deg, Dec +8.6136 to +19.2864 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 31.7291 to 48.3263 deg, Dec 8.6136 to 19.2864 deg
Loaded 4379 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): 3380 out of 3762 total matches.
Matched with Tycho-2 3762 out of 42040 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.828450
a=0.000000 b=1.000000 c=22.828450
From vast_summary.log: estimated ref. image limiting mag.: -7.27
Updating vast_summary.log: Estimated ref. image limiting mag.: 15.56
Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed! =)
Estimated ref. image limiting mag.: 15.56
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 42040 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7291 to 48.3263 deg, Dec +8.6136 to +19.2864 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 31.7291 to 48.3263 deg, Dec 8.6136 to 19.2864 deg
Loaded 4379 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): 3380 out of 3762 total matches.
Matched with Tycho-2 3762 out of 42040 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Forced-photometry filter: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits -> calib.txt_param_ref_wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (aperture=4.7)
Read 42245 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 31.7296 to 48.3258 deg, Dec +8.6525 to +19.2994 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 31.7296 to 48.3258 deg, Dec 8.6525 to 19.2994 deg
Loaded 4373 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): 3358 out of 3765 total matches.
Matched with Tycho-2 3765 out of 42245 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Forced-photometry filter: calibrated wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits -> calib.txt_param_ref_wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits (aperture=4.6)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 8 candidate transients before the final filtering. (Hard limit: 10000)
Median FWHM seeing for isolated stars:
2.0 pix Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
1.9 pix Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
2.1 pix fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
2.1 pix fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Limiting magnitude estimates:
15.6 mag. Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
15.6 mag. Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
14.3 mag. fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
14.3 mag. fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
All-image limiting magnitude estimate: 14.3 (SNR ) 13.8 (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.jFl26OZT6I (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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits' -> 'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS_IMAGE_NAME=wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS-calibrated image found: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
Checking if the catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits alredy exist and is non-empty...
Catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits
WCS catalog name: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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=1797, bad_region=7731, passed=42030
Got 42030 stars (including 32812 good ones) from the SExtractor catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat
util/solve_plate_with_UCAC5 got 42030 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 493 to 548 (Dec 8.6 to 19.3)
Done reading UCAC5 zone files...
Matched 4884 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 4879 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 36016 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23"
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 493 to 548 (Dec 8.6 to 19.3)
Done reading UCAC5 zone files...
Matched 4884 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 36016 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23"
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 36016 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25"
Excluding outliers - 4879 stars left (next iteration limit 5366)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits N_match=4879 sigma_overall_arcsec=0.263 sigma_q1_arcsec=0.324 sigma_q2_arcsec=0.239 sigma_q3_arcsec=0.245 sigma_q4_arcsec=0.219 n_q1=1713 n_q2=884 n_q3=1421 n_q4=861 worst_quadrant_to_overall_ratio=1.232
The image catalog is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits -region wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.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.fT6niYlFlA (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/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits' -> 'wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS_IMAGE_NAME=wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS-calibrated image found: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
Checking if the catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits alredy exist and is non-empty...
Catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat corresponding to the image wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits
WCS catalog name: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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=9, blended=1828, bad_region=7788, passed=42236
Got 42236 stars (including 32941 good ones) from the SExtractor catalog wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat
util/solve_plate_with_UCAC5 got 42236 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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 4878 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 36171 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 36171 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24"
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 36171 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25"
Excluding outliers - 4878 stars left (next iteration limit 5365)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits N_match=4878 sigma_overall_arcsec=0.278 sigma_q1_arcsec=0.337 sigma_q2_arcsec=0.253 sigma_q3_arcsec=0.255 sigma_q4_arcsec=0.244 n_q1=1712 n_q2=873 n_q3=1421 n_q4=872 worst_quadrant_to_overall_ratio=1.210
The image catalog is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits -region wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.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.hV0bW1AjB0 (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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS_IMAGE_NAME=wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS-calibrated image found: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Checking if the catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits alredy exist and is non-empty...
Catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
WCS catalog name: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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=4, blended=580, bad_region=3342, passed=18877
Got 18877 stars (including 15098 good ones) from the SExtractor catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat
util/solve_plate_with_UCAC5 got 18877 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4875 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4864 matched stars entering correct_measured_positions(), 4864 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4864 matched stars entering correct_measured_positions(), 16301 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4874 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4863 matched stars entering correct_measured_positions(), 16301 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38"
Accuracy estimation diagnostic: 4863 matched stars entering correct_measured_positions(), 16301 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39"
Excluding outliers - 4863 stars left (next iteration limit 5350)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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=4863 robust_rms=6.299 arcsec worst_quadrant_rms=8.505 arcsec
SIP_REFIT: SIP order 3 trial: matched=4863 robust_rms=0.513 arcsec worst_quadrant_rms=0.620 arcsec
SIP_REFIT: SIP order 5 trial: matched=4863 robust_rms=0.420 arcsec worst_quadrant_rms=0.469 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4863 robust_rms_before=1.008 arcsec robust_rms_before_corrected=0.417 arcsec robust_rms_after=0.420 arcsec worst_quadrant_rms_before=0.461 worst_quadrant_rms_after=0.469
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.461 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits N_match=4863 sigma_overall_arcsec=0.421 sigma_q1_arcsec=0.381 sigma_q2_arcsec=0.438 sigma_q3_arcsec=0.473 sigma_q4_arcsec=0.393 n_q1=1545 n_q2=835 n_q3=1484 n_q4=999 worst_quadrant_to_overall_ratio=1.123
The image catalog is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits -region wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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.HZmu2ysNdu (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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS_IMAGE_NAME=wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS-calibrated image found: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Checking if the catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits alredy exist and is non-empty...
Catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat corresponding to the image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
WCS catalog name: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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=3, blended=606, bad_region=3296, passed=18589
Got 18589 stars (including 14853 good ones) from the SExtractor catalog wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat
util/solve_plate_with_UCAC5 got 18589 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4877 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 4867 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 16058 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35"
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 493 to 548 (Dec 8.7 to 19.3)
Done reading UCAC5 zone files...
Matched 4877 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 16058 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36"
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 16058 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37"
Excluding outliers - 4866 stars left (next iteration limit 5353)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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=4866 robust_rms=6.394 arcsec worst_quadrant_rms=8.685 arcsec
SIP_REFIT: SIP order 3 trial: matched=4866 robust_rms=0.490 arcsec worst_quadrant_rms=0.627 arcsec
SIP_REFIT: SIP order 5 trial: matched=4866 robust_rms=0.389 arcsec worst_quadrant_rms=0.430 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4866 robust_rms_before=0.995 arcsec robust_rms_before_corrected=0.379 arcsec robust_rms_after=0.389 arcsec worst_quadrant_rms_before=0.417 worst_quadrant_rms_after=0.430
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.417 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits N_match=4866 sigma_overall_arcsec=0.394 sigma_q1_arcsec=0.371 sigma_q2_arcsec=0.402 sigma_q3_arcsec=0.431 sigma_q4_arcsec=0.358 n_q1=1548 n_q2=838 n_q3=1489 n_q4=991 worst_quadrant_to_overall_ratio=1.094
The image catalog is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits -region wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-12-47_20.00sec_-0.00C_LIGHT_0400.fits
Saving fully-calibrated image wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.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_2026-08-31_CI_Ari-04-Q2b1x1_034348_TTUQ2b1x1_711614_Ypz9nTIU/wcs_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401.fits
Preparing the HTML report for the field Ari-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:46:57.70 +12:26:14.9: 13.41 +/- 0.04 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:56:54.88 +15:56:47.0: 16.12 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:55:43.66 +14:41:30.5: 13.29 +/- 0.03 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:34:35.33 +14:10:20.1: 16.28 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:53:56.72 +16:00:08.4: 13.66 +/- 0.05 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-02_20.00sec_-15.00C_LIGHT_0117.fits at 02:54:58.37 +11:29:48.0: 13.35 +/- 0.03 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:34:35.33 +14:10:20.1: 16.28 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:56:54.88 +15:56:47.0: 16.11 +/- 99.00 upperlimit
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:46:57.70 +12:26:14.9: 13.40 +/- 0.04 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:54:58.37 +11:29:48.0: 13.43 +/- 0.03 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:53:56.72 +16:00:08.4: 13.74 +/- 0.05 detection
Forced photometry on wcs_Ari-04-Q2b1x1_2026-01-08_21-46-45_20.00sec_-15.00C_LIGHT_0118.fits at 02:55:43.66 +14:41:30.5: 13.29 +/- 0.03 detection
Forced photometry reference-image weighted average: 13.41 +/- 0.03
Forced photometry reference-image weighted average: 13.39 +/- 0.02
Forced photometry reference-image weighted average: 13.29 +/- 0.02
Forced photometry filter REJECTED candidate at 02:46:57.70 +12:26:14.9: ref_mag=13.41 +/- 0.03 new_mean_mag=13.4389 delta=-0.03 (need > 0.90)
Forced photometry reference-image weighted average: 13.69 +/- 0.03
Forced photometry filter REJECTED candidate at 02:54:58.37 +11:29:48.0: ref_mag=13.39 +/- 0.02 new_mean_mag=13.4762 delta=-0.09 (need > 0.90)
Forced photometry filter REJECTED candidate at 02:55:43.66 +14:41:30.5: ref_mag=13.29 +/- 0.02 new_mean_mag=13.3723 delta=-0.08 (need > 0.90)
Forced photometry filter REJECTED candidate at 02:53:56.72 +16:00:08.4: ref_mag=13.69 +/- 0.03 new_mean_mag=13.8764 delta=-0.18 (need > 0.90)
Adding exclusion_list_local.txt__out55966.dat to exclusion_list_local.txt
Adding exclusion_list_local.txt__out56251.dat to exclusion_list_local.txt
make_report_in_HTML.sh Phase 1 (network queries): 6s
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
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Considering the candidate 53453_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 53453_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks
**** FOUND 02:55:50.71 +18:17:09.3 in the exclusion list exclusion_list.txt ****
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Considering the candidate 55058_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 55058_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks
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Considering the candidate 55097_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 55097_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks
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Considering the candidate 55260_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 55260_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks
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Considering the candidate 55903_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 55903_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks
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Considering the candidate 55966_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
Preparing report for the candidate 55966_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
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Considering the candidate 56251_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
Preparing report for the candidate 56251_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
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Considering the candidate 41054_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401
The candidate 41054_fd_Ari-04-Q2b1x1_2026-08-31_03-13-38_20.00sec_-0.00C_LIGHT_0401 did not pass the final checks