FITS images used in this processing run:

Field Tau-04-Q2b1x1 reference image: Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Field Tau-04-Q2b1x1 reference image: Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Field Tau-04-Q2b1x1 second-epoch image: Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Field Tau-04-Q2b1x1 second-epoch image: Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
First image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Last  image: 2461281.90566311 29.08.2026 09:43:59.293   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.65
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 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):  17229
Objects passed selection criteria:  17092
Measurements per detected object (mean, median, min, max):    2.2    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.2    2.0    2    4
Average stars detected per image: 10416.8
Average stars matched: 10099.5 (96.9544 %)
Memory usage VmPeak:   243540 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  Sat Aug 29 05:01:03 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
First image: 2461032.81064075 23.12.2025 07:27:09.361   /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Last  image: 2461281.90566311 29.08.2026 09:43:59.293   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 27
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.31
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 20 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):  131916
Objects passed selection criteria:  131454
Measurements per detected object (mean, median, min, max):    2.4    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.4    2.0    2    4
Average stars detected per image: 85193.2
Average stars matched: 80926.8 (94.992 %)
Memory usage VmPeak:   538284 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  Sat Aug 29 05:02:06 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Tau-04-Q2b1x1
#######################################
########### Starting Tau-04-Q2b1x1 ###########
Processing Tau-04-Q2b1x1
server tau has sufficient free disk space available: 687068 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 687068 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.png' -> 'transient_report/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits_preview.png'

Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits


renamed 'Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.png' -> 'transient_report/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits_preview.png'

Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 599.0891
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 758.4070
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 5300.4593
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1696.2179
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 5074.5512
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1787.8611
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 8.84753
INFO:                  SECOND_EPOCH__SD_ratio= 0.051
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 25.1 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-29T04:43:12.9186877' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-29T09:43:12.9186877' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61281.4050106248 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-29T09:43:22.8235249' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61281.4051252664 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =      83.072954208018 / [deg] RA of telescope" status=0
Record 32: "DEC     =     21.9998698502305 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     34.8211111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     85.1505555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.74781107807915 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20473 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20473 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 15.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 54.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.69 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.1 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 24.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            14.801184 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            12.601008 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/d_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits :)

Spent 0.505910 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/d_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     25.2199993133545 / [degC] Focuser temperature
AMBTEMP =                 25.1 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-29T04:43:59.2939694' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-29T09:43:59.2939694' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61281.4055473725 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-29T09:44:09.1964579' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61281.4056619909 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                  0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     83.0729541555994 / [deg] RA of telescope" status=0
Record 32: "DEC     =     21.9998698442335 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     34.9802777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     85.2480555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.74090530449724 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20473 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20473 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2199993133545 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2199993133545 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 15.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 54.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.69 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.1 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 24.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            14.801184 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            12.601008 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/d_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits :)

Spent 0.525260 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/d_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Previews of the CALIBRATED second-epoch images:


fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits



fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
  
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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: 2461281.90512637
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Image size: 937.7'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:02.014 +22:01:23.83 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:02.014 +22:01:23.83
Angular distance between the image centers 0.0719 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Image size: 937.7'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:04.092 +22:01:54.37 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:04.092 +22:01:54.37
Angular distance between the image centers 0.0680 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  05:32:02.014 +22:01:23.83
Second-epoch second image center 05:32:04.092 +22:01:54.37
Angular distance between the image centers 0.01168 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.FpTezsYoav
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.wbLbLG3O2Q
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits &> /tmp/tmp.DsRkpXHhHZ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits &> /tmp/tmp.MDPr4CJpYV
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 22997 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3514 to 91.9479 deg, Dec +16.4790 to +27.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3514 to 91.9479 deg, Dec 16.4790 to 27.2884 deg
Loaded 12406 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8976 out of 10160 total matches.
Matched with Tycho-2 10160 out of 22997 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.969200
a=0.000000 b=1.000000 c=22.969200
From vast_summary.log: estimated ref. image limiting mag.:  -7.65
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.32

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

Lightcurve magnitude calibration plot:


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

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


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

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=5.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 2.0 pix  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 2.3 pix  fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
 2.4 pix  fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Limiting magnitude estimates:
 15.3 mag.  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 15.2 mag.  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 13.3 mag.  fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
 13.3 mag.  fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
All-image limiting magnitude estimate:  13.3 (SNR )  10.5 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.FpTezsYoav (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2479, bad_region=3694, passed=22997
Got 22997 stars (including 17090 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
util/solve_plate_with_UCAC5 got 22997 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

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

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


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4705 sigma_overall_arcsec=0.386 sigma_q1_arcsec=0.461 sigma_q2_arcsec=0.374 sigma_q3_arcsec=0.350 sigma_q4_arcsec=0.273 n_q1=1788 n_q2=376 n_q3=1844 n_q4=697 worst_quadrant_to_overall_ratio=1.193
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.wbLbLG3O2Q (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2320, bad_region=3377, passed=20916
Got 20916 stars (including 15475 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
util/solve_plate_with_UCAC5 got 20916 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

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

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


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4708 sigma_overall_arcsec=0.515 sigma_q1_arcsec=0.605 sigma_q2_arcsec=0.498 sigma_q3_arcsec=0.464 sigma_q4_arcsec=0.402 n_q1=1784 n_q2=371 n_q3=1863 n_q4=690 worst_quadrant_to_overall_ratio=1.175
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.DsRkpXHhHZ (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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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=346, bad_region=1282, passed=3659
Got 3659 stars (including 2140 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat 
util/solve_plate_with_UCAC5 got 3659 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2059 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2035 matched stars entering correct_measured_positions(), 2027 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.54" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2035 matched stars entering correct_measured_positions(), 2658 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2060 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2033 matched stars entering correct_measured_positions(), 2657 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Accuracy estimation diagnostic: 2033 matched stars entering correct_measured_positions(), 2655 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.59" 
Excluding outliers - 2033 stars left (next iteration limit 2238)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2033 robust_rms=6.702 arcsec worst_quadrant_rms=9.188 arcsec
SIP_REFIT: SIP order 3 trial: matched=2033 robust_rms=0.604 arcsec worst_quadrant_rms=0.976 arcsec
SIP_REFIT: SIP order 5 trial: matched=2033 robust_rms=0.515 arcsec worst_quadrant_rms=0.707 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2033 robust_rms_before=0.983 arcsec robust_rms_before_corrected=0.639 arcsec robust_rms_after=0.515 arcsec worst_quadrant_rms_before=0.819 worst_quadrant_rms_after=0.707
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Image size: 937.8'x624.4'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:01.945 +22:01:23.38 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 3659 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/correct_sextractor_wcs_catalog_usingxy2sky1077213.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 5, robust RMS 0.983 -> 0.515 arcsec)
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits N_match=2033 sigma_overall_arcsec=0.538 sigma_q1_arcsec=0.599 sigma_q2_arcsec=0.541 sigma_q3_arcsec=0.742 sigma_q4_arcsec=0.426 n_q1=360 n_q2=591 n_q3=438 n_q4=644 worst_quadrant_to_overall_ratio=1.379
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits -region wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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.MDPr4CJpYV (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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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=340, bad_region=1112, passed=3798
Got 3798 stars (including 2426 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat 
util/solve_plate_with_UCAC5 got 3798 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2330 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2295 matched stars entering correct_measured_positions(), 2292 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.56" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2295 matched stars entering correct_measured_positions(), 2863 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.55" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 2329 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2293 matched stars entering correct_measured_positions(), 2863 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.60" 
Accuracy estimation diagnostic: 2293 matched stars entering correct_measured_positions(), 2863 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.60" 
Excluding outliers - 2293 stars left (next iteration limit 2524)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2293 robust_rms=7.193 arcsec worst_quadrant_rms=8.097 arcsec
SIP_REFIT: SIP order 3 trial: matched=2293 robust_rms=0.683 arcsec worst_quadrant_rms=0.878 arcsec
SIP_REFIT: SIP order 5 trial: matched=2293 robust_rms=0.529 arcsec worst_quadrant_rms=0.639 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2293 robust_rms_before=0.987 arcsec robust_rms_before_corrected=0.624 arcsec robust_rms_after=0.529 arcsec worst_quadrant_rms_before=0.721 worst_quadrant_rms_after=0.639
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Image size: 937.9'x624.4'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:04.026 +22:01:53.89 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 3798 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/correct_sextractor_wcs_catalog_usingxy2sky1077274.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 5, robust RMS 0.987 -> 0.529 arcsec)
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits N_match=2293 sigma_overall_arcsec=0.572 sigma_q1_arcsec=0.573 sigma_q2_arcsec=0.538 sigma_q3_arcsec=0.708 sigma_q4_arcsec=0.515 n_q1=389 n_q2=608 n_q3=651 n_q4=645 worst_quadrant_to_overall_ratio=1.237
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits -region wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits sigma_overall=0.386 worst_q_ratio=1.193
ref2=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits sigma_overall=0.515 worst_q_ratio=1.175
new1=fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits sigma_overall=0.538 worst_q_ratio=1.379
new2=fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits sigma_overall=0.572 worst_q_ratio=1.237
reference average sigma_overall=0.4505 worst_q_ratio=1.184
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

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


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


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474_astrometric_residuals.png (2033 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.43 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475_astrometric_residuals.png (2293 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.44 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits'
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits'
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
  
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Image size: 937.8'x624.4'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:01.945 +22:01:23.38 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:01.945 +22:01:23.38
Angular distance between the image centers 0.0721 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Image size: 937.9'x624.4'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 05:32:04.026 +22:01:53.89 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:04.026 +22:01:53.89
Angular distance between the image centers 0.0682 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  05:32:01.945 +22:01:23.38
Second-epoch second image center 05:32:04.026 +22:01:53.89
Angular distance between the image centers 0.01168 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.c4mk2XDp1z
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.aN1VVRVwPL
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits &> /tmp/tmp.9724PxQ0L2
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits &> /tmp/tmp.hmrz6s7onD
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 167968 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3408 to 91.9478 deg, Dec +16.4791 to +27.2941 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3408 to 91.9478 deg, Dec 16.4791 to 27.2941 deg
Loaded 12414 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7145 out of 10502 total matches.
Matched with Tycho-2 10502 out of 167968 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.825500
a=0.000000 b=1.000000 c=22.825500
From vast_summary.log: estimated ref. image limiting mag.:  -7.31
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.52

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

Lightcurve magnitude calibration plot:


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

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


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

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=4.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 19 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.9 pix  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 1.8 pix  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 2.0 pix  fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
 2.0 pix  fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Limiting magnitude estimates:
 15.5 mag.  Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
 15.4 mag.  Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
 13.7 mag.  fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
 13.7 mag.  fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
All-image limiting magnitude estimate:  13.7 (SNR )  13.2 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.c4mk2XDp1z (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=28, blended=21684, bad_region=23036, passed=167940
Got 167940 stars (including 124901 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat 
util/solve_plate_with_UCAC5 got 167940 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

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

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


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

SIP_REFIT: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4714 sigma_overall_arcsec=0.388 sigma_q1_arcsec=0.472 sigma_q2_arcsec=0.371 sigma_q3_arcsec=0.345 sigma_q4_arcsec=0.297 n_q1=1719 n_q2=437 n_q3=1839 n_q4=719 worst_quadrant_to_overall_ratio=1.214
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.aN1VVRVwPL (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=36, blended=20219, bad_region=22244, passed=162977
Got 162977 stars (including 121992 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat 
util/solve_plate_with_UCAC5 got 162977 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

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

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


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

SIP_REFIT: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4704 sigma_overall_arcsec=0.497 sigma_q1_arcsec=0.615 sigma_q2_arcsec=0.464 sigma_q3_arcsec=0.445 sigma_q4_arcsec=0.412 n_q1=1720 n_q2=418 n_q3=1843 n_q4=723 worst_quadrant_to_overall_ratio=1.238
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.9724PxQ0L2 (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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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=15, blended=1657, bad_region=10659, passed=37774
Got 37774 stars (including 25965 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat 
util/solve_plate_with_UCAC5 got 37774 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.8'
Seting catalog search parameters based on the expected field of view 937.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013025 (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 0.010420 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4790 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4710 matched stars entering correct_measured_positions(), 4706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4710 matched stars entering correct_measured_positions(), 30289 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4790 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 30289 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 30283 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Excluding outliers - 4707 stars left (next iteration limit 5181)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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=4707 robust_rms=6.226 arcsec worst_quadrant_rms=8.972 arcsec
SIP_REFIT: SIP order 3 trial: matched=4707 robust_rms=0.605 arcsec worst_quadrant_rms=1.037 arcsec
SIP_REFIT: SIP order 5 trial: matched=4707 robust_rms=0.533 arcsec worst_quadrant_rms=0.751 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4707 robust_rms_before=0.539 arcsec robust_rms_before_corrected=0.577 arcsec robust_rms_after=0.533 arcsec worst_quadrant_rms_before=0.800 worst_quadrant_rms_after=0.751
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.800 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits N_match=4707 sigma_overall_arcsec=0.584 sigma_q1_arcsec=0.555 sigma_q2_arcsec=0.599 sigma_q3_arcsec=0.779 sigma_q4_arcsec=0.493 n_q1=895 n_q2=1434 n_q3=905 n_q4=1473 worst_quadrant_to_overall_ratio=1.332
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits -region wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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.hmrz6s7onD (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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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=5, blended=1726, bad_region=8853, passed=38719
Got 38719 stars (including 28555 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat 
util/solve_plate_with_UCAC5 got 38719 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4772 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4696 matched stars entering correct_measured_positions(), 4696 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4695 matched stars entering correct_measured_positions(), 31791 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4772 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4695 matched stars entering correct_measured_positions(), 31791 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.54" 
Accuracy estimation diagnostic: 4695 matched stars entering correct_measured_positions(), 31791 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Excluding outliers - 4695 stars left (next iteration limit 5164)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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=4695 robust_rms=7.023 arcsec worst_quadrant_rms=7.771 arcsec
SIP_REFIT: SIP order 3 trial: matched=4695 robust_rms=0.656 arcsec worst_quadrant_rms=0.900 arcsec
SIP_REFIT: SIP order 5 trial: matched=4695 robust_rms=0.530 arcsec worst_quadrant_rms=0.669 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4695 robust_rms_before=0.540 arcsec robust_rms_before_corrected=0.574 arcsec robust_rms_after=0.530 arcsec worst_quadrant_rms_before=0.700 worst_quadrant_rms_after=0.669
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.700 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits N_match=4695 sigma_overall_arcsec=0.590 sigma_q1_arcsec=0.593 sigma_q2_arcsec=0.561 sigma_q3_arcsec=0.712 sigma_q4_arcsec=0.530 n_q1=835 n_q2=1341 n_q3=1199 n_q4=1320 worst_quadrant_to_overall_ratio=1.207
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits -region wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.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_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:33:27.15 +23:04:52.1:  12.83 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:17:25.29 +26:04:51.8:  9.55 +/- 0.00  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:48:32.53 +18:54:20.9:  12.78 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:48:29.95 +22:47:21.6:  12.98 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits at 05:39:06.25 +19:47:07.0:  12.58 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:48:32.53 +18:54:20.9:  12.83 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:48:29.95 +22:47:21.6:  12.98 +/- 0.02  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:17:25.29 +26:04:51.8:  9.60 +/- 0.00  detection
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:33:27.15 +23:04:52.1:  12.80 +/- 0.02  detection
Forced photometry reference-image weighted average:  12.80 +/- 0.01
Forced photometry reference-image weighted average:  12.98 +/- 0.02
Forced photometry reference-image weighted average:  12.82 +/- 0.01
Forced photometry reference-image weighted average:  9.57 +/- 0.00
Forced photometry filter REJECTED candidate at 05:48:32.53 +18:54:20.9: ref_mag=12.80 +/- 0.01 new_mean_mag=12.8800 delta=-0.08 (need > 0.90)
Forced photometry filter REJECTED candidate at 05:48:29.95 +22:47:21.6: ref_mag=12.98 +/- 0.02 new_mean_mag=13.0398 delta=-0.06 (need > 0.90)
Forced photometry filter REJECTED candidate at 05:33:27.15 +23:04:52.1: ref_mag=12.82 +/- 0.01 new_mean_mag=13.1771 delta=-0.36 (need > 0.90)
Forced photometry filter REJECTED candidate at 05:17:25.29 +26:04:51.8: ref_mag=9.57 +/- 0.00 new_mean_mag=9.8202 delta=-0.25 (need > 0.90)
Forced photometry on wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits at 05:39:06.25 +19:47:07.0:  12.57 +/- 0.02  detection
Forced photometry reference-image weighted average:  12.57 +/- 0.02
Forced photometry filter REJECTED candidate at 05:39:06.25 +19:47:07.0: ref_mag=12.57 +/- 0.02 new_mean_mag=12.7772 delta=-0.20 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
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: 0s
  
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Considering the candidate 189048_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189048_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.05    05:33:57.96 +22:41:51.6   5059 3594   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:33:57.95 +22:41:51.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 189049_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189049_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 1     2026 08 29.40513    2461281.90513    13.25    05:33:27.16 +23:04:50.7   4995 3831   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Discovery image 2     2026 08 29.40566    2461281.90566    13.12    05:33:27.15 +23:04:53.6   4991 3826   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

  
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Considering the candidate 189060_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189060_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 1     2026 08 29.40513    2461281.90513    12.96    05:48:32.58 +18:54:19.3   7129 1303   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Discovery image 2     2026 08 29.40566    2461281.90566    12.82    05:48:32.48 +18:54:22.6   7124 1298   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

  
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Considering the candidate 189061_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189061_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 1     2026 08 29.40513    2461281.90513    12.96    05:48:29.91 +22:47:21.8   7092 3658   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Discovery image 2     2026 08 29.40566    2461281.90566    13.18    05:48:29.99 +22:47:21.4   7087 3653   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

  
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Considering the candidate 189064_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189064_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.56    05:47:07.85 +22:38:32.1   6897 3561   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:47:07.82 +22:38:31.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 189070_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189070_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    11.61    05:31:56.45 +22:45:17.2   4778 3632   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:31:56.43 +22:45:17.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 189071_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 189071_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 1     2026 08 29.40513    2461281.90513    9.76    05:17:25.30 +26:04:51.7   2835 5709   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Discovery image 2     2026 08 29.40566    2461281.90566    9.88    05:17:25.28 +26:04:51.9   2830 5704   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

  
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Considering the candidate 190654_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 190654_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.55    05:30:50.70 +22:27:24.6   4622 3454   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:30:50.70 +22:27:24.6 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 190774_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 190774_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.02    05:45:36.95 +25:05:46.2   6674 5046   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:45:36.93 +25:05:45.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 190974_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 190974_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.08    05:45:54.19 +26:05:59.0   6709 5657   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:45:54.23 +26:05:59.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 191172_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191172_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.77    05:47:13.82 +21:51:54.4   6915 3091   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:47:13.75 +21:51:54.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 191310_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191310_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.58    05:43:00.31 +18:59:11.2   6328 1343   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:43:00.27 +18:59:11.3 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 191422_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191422_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 1     2026 08 29.40513    2461281.90513    12.91    05:39:06.23 +19:47:07.4   5775 1834   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Discovery image 2     2026 08 29.40566    2461281.90566    12.69    05:39:06.27 +19:47:06.5   5770 1828   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

  
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Considering the candidate 191514_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191514_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.11    05:41:10.64 +20:05:07.9   6065 2009   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:41:10.64 +20:05:08.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 191649_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191649_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.95    05:45:11.17 +18:40:42.4   6643 1157   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:45:11.25 +18:40:42.5 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 191664_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 191664_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.09    05:20:11.68 +19:34:17.1   3075 1746   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:20:11.71 +19:34:17.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 192001_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 192001_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    13.29    05:30:36.60 +22:27:37.3   4590 3457   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:30:36.62 +22:27:36.8 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 14597_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 14597_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 2     2026 08 29.40566    2461281.90566    12.94    05:38:00.50 +26:13:09.1   5633 5724   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:38:00.42 +26:13:09.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 120168_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475
The candidate 120168_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475 did not pass the final checks
Discovery image 3     2026 08 29.40566    2461281.90566    9.96    05:46:56.39 +17:54:32.7   6900 0689   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits

**** FOUND  05:46:56.38 +17:54:32.7 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-08-29_CI_Tau-04-Q2b1x1_045845_TTUQ2b1x1_1065106_CjJDNHKO/monitoring_positions.txt
Read 37789 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.1995 to 91.6843 deg, Dec +16.5540 to +27.2988 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.1995 to 91.6843 deg, Dec 16.5540 to 27.2988 deg
Loaded 12003 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): 8791 out of 9337 total matches.
Matched with Tycho-2 9337 out of 37789 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits
Observation time (mid-exposure, UTC): JD 2461281.90513 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 83.00722 deg  Dec= +22.02232 deg
Frame center: alt= +35.174 deg  az= 86.142 deg  airmass= 1.7310
Header cross-check: CENTALT= 34.821 deg (difference +0.353 deg)
Header cross-check: AIRMASS= 1.7478 (we compute 1.7310)
Airmass zero-point fit: REJECT_K_RANGE  k= -0.3671 +/- 0.0342 mag/airmass  N= 4940  airmass span 1.4303-2.2491  scatter 0.4311 mag
Source monitoring: airmass zero-point for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits: REJECT_K_RANGE -0.666912 +0.367145 1.7310 -0.3671 4940 0.8188 0.4311 1.4303 2.2491
Forced photometry (list mode): image=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits list=monitoring_pixlist1065474.tmp aperture=4.4
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 21.907000
Forced photometry: center=(3293.58, 4207.33) aperture=4.4
Annulus: inner=8.80 outer=22.00
Background annulus: 1275 pixels
Iterative clipping converged after 1 iterations, 1274/1275 pixels remain
SExtractor background: mode=9037.94 median=9036.00 mean=9034.71 sigma=232.22 -> bg=9037.94 (1274 pixels)
Aperture sum=137765.79 N_eff=15.2053
Net flux=341.19 noise=905.51 SNR=0.38
Instrumental magnitude: -8.5850
Calibrated magnitude: 13.3220
Source monitoring: 1 position(s) measured on wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-12_20.00sec_-0.00C_LIGHT_0474.fits (aperture 4.4 pix)
Read 38724 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.1992 to 91.7180 deg, Dec +16.5807 to +27.3074 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.1992 to 91.7180 deg, Dec 16.5807 to 27.3074 deg
Loaded 12034 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): 8952 out of 9524 total matches.
Matched with Tycho-2 9524 out of 38724 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Observation time (mid-exposure, UTC): JD 2461281.90566 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 83.01590 deg  Dec= +22.03080 deg
Frame center: alt= +35.331 deg  az= 86.213 deg  airmass= 1.7243
Header cross-check: CENTALT= 34.980 deg (difference +0.351 deg)
Header cross-check: AIRMASS= 1.7409 (we compute 1.7243)
Airmass zero-point fit: OK  k= +0.2471 +/- 0.0338 mag/airmass  N= 4997  airmass span 1.4237-2.2630  scatter 0.4555 mag
Source monitoring: airmass zero-point for wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits: OK +0.446527 -0.247082 1.7243 +0.2471 4997 0.8392 0.4555 1.4237 2.2630
Forced photometry (list mode): image=wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits list=monitoring_pixlist1065474.tmp aperture=4.4
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 21.928450
Forced photometry: center=(3288.67, 4202.29) aperture=4.4
Annulus: inner=8.80 outer=22.00
Background annulus: 1277 pixels
Iterative clipping converged after 1 iterations, 1272/1277 pixels remain
SExtractor background: mode=3482.69 median=3485.00 mean=3486.54 sigma=88.49 -> bg=3482.69 (1272 pixels)
Aperture sum=94783.47 N_eff=15.2053
Net flux=41828.04 noise=345.04 SNR=121.23
Instrumental magnitude: -11.5537
Calibrated magnitude: 10.3748
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits
Source monitoring: 1 position(s) measured on wcs_fd_Tau-04-Q2b1x1_2026-08-29_04-43-59_20.00sec_0.00C_LIGHT_0475.fits (aperture 4.4 pix)
########### Completed Tau-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461281.90512637 -observatory V36
10:38:51.64 +10:22:38.1 Mercury (-1.7mag)
13:11:44.57 -10:54:43.7 Venus (-4.6mag)
06:49:37.69 +23:26:33.3 Mars (1.3mag)
09:01:35.32 +17:28:33.5 Jupiter (-1.8mag)
00:53:36.37 +02:52:14.4 Saturn (0.5mag)
04:13:26.14 +21:01:20.5 Uranus (5.7mag)
00:14:33.14 +00:02:15.4 Neptune (7.7mag)
20:26:15.36 -23:37:20.0 Pluto (14.5mag)
23:20:03.96 -02:37:16.0 Moon (-12.4mag)
-rw-r--r-- 1 apache apache 363 Aug 29 05:01 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461281.90512637:
09:01:39.62 +17:28:13.1 Io (6.2mag)
09:01:41.70 +17:28:03.7 Europa (6.3mag)
09:01:50.66 +17:27:21.7 Ganymede (5.7mag)
09:02:03.99 +17:26:18.6 Callisto (6.9mag)
08:59:08.17 +17:40:37.5 Himalia (15.7mag)
09:01:37.87 +17:28:22.1 Thebe (16.6mag)
08:58:48.25 +17:35:25.5 Elara (17.7mag)
09:05:38.75 +16:59:05.9 Pasiphae (17.9mag)
09:03:18.65 +17:43:56.9 Carme (19.0mag)
00:53:34.14 +02:51:39.9 Titan (8.4mag)
00:53:30.50 +02:52:05.5 Rhea (9.7mag)
00:54:09.22 +02:54:48.1 Iapetus (11.1mag)
00:53:20.82 +02:52:07.6 Hyperion (14.4mag)
00:52:32.87 +02:42:52.3 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 29 05:01 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461281.90512637:
20:57:28.57 -07:55:44.5 JWST
15:27:12.56 +50:39:44.5 Chandra
06:38:54.71 +12:09:49.4 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 29 05:01 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461281.90512637 -observatory V36
03:34:15.45 +18:52:40.0 17.5mag P/1996 R2 (Lagerkvist)
18:00:35.48 -34:22:01.8 14.2mag P/2010 H2 (Vales)
07:12:26.66 -69:49:53.5 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:26.45 +33:28:34.7 17.7mag C/2017 K2 (PANSTARRS)
04:36:11.86 +43:57:59.1 17.8mag P/2021 N1 (ZTF)
22:20:46.51 +29:40:56.7 17.4mag C/2022 E2 (ATLAS)
07:03:02.82 +26:08:54.8 16.8mag C/2022 N2 (PANSTARRS)
10:41:15.93 +27:33:49.3 17.0mag C/2022 QE78 (ATLAS)
09:42:56.34 +05:16:34.4 18.0mag C/2022 R6 (PANSTARRS)
20:46:16.84 +62:49:56.8 18.0mag C/2023 H5 (Lemmon)
15:32:44.51 -14:51:49.7 14.7mag C/2023 R1 (PANSTARRS)
08:30:13.41 +32:22:46.4 15.7mag C/2024 E1 (Wierzchos)
15:05:49.16 +15:25:37.7 17.9mag C/2024 G6 (ATLAS)
18:40:14.73 +43:25:44.7 13.7mag C/2024 J3 (ATLAS)
20:38:51.35 +49:37:57.5 17.5mag C/2024 R4 (PANSTARRS)
05:30:25.58 -12:55:57.5 15.2mag C/2024 T5 (ATLAS)
07:08:03.94 +20:16:51.2 17.9mag C/2025 J1 (Borisov)
11:03:58.25 +19:26:45.9 17.0mag C/2025 V2 (Rankin)
13:12:35.16 +00:49:09.2 16.9mag C/2025 Y1 (ATLAS)
16:21:28.10 +75:22:10.3 16.3mag C/2026 A2 (Bok)
03:08:59.72 +46:19:03.9 17.3mag C/2026 B2 (Sun-Gao)
12:05:08.50 +10:32:35.2 17.5mag A/2026 E1
22:18:33.59 -33:55:11.9 7.4mag 10P/Tempel
11:42:17.05 -04:48:56.4 16.3mag 29P/Schwassmann-Wachmann
11:50:39.10 -02:15:19.9 17.5mag 63P/Wild
00:49:01.50 -06:30:39.9 15.4mag 65P/Gunn
06:21:33.77 +19:51:40.9 13.7mag 78P/Gehrels
20:20:59.23 -25:34:11.0 17.3mag 84P/Giclas
03:15:21.48 +14:48:15.3 16.7mag 88P/Howell
08:46:32.33 +24:27:11.0 16.5mag 93P/Lovas
05:09:24.23 +25:11:02.9 17.1mag 112P/Urata-Niijima
07:04:46.04 +26:54:24.5 16.0mag 114P/Wiseman-Skiff
10:07:49.81 +22:42:24.8 14.9mag 123P/West-Hartley
12:27:21.60 -18:10:52.9 17.3mag 124P/Mrkos
06:06:11.82 +20:52:58.1 16.0mag 128P/Shoemaker-Holt
07:02:57.18 +17:37:13.8 17.9mag 131P/Mueller
23:56:43.18 +02:49:12.2 17.4mag 139P/Vaisala-Oterma
02:57:51.57 -18:18:33.9 12.3mag 161P/Hartley-IRAS
08:25:55.70 +37:59:47.4 16.2mag 162P/Siding Spring
10:08:24.23 +21:08:22.6 12.6mag 169P/NEAT
03:15:22.58 +09:05:05.3 14.5mag 220P/McNaught
04:23:25.46 +33:22:40.4 15.2mag 260P/McNaught
08:07:25.36 +36:33:09.9 17.3mag 295P/LINEAR
15:19:52.29 +00:45:19.7 17.8mag 391P/Kowalski
09:20:00.19 +17:18:24.8 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.2K Aug 29 05:01 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:32.95 -68:48:30.00  ASASSN-26no  2026-05-24 8.41
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
-rw-r--r-- 1 apache apache 5.7K Aug 29 05:01 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Aug 29 05:01 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
12:57:00.178 -28:38:41.60  AT 2026xtk  2026-01-27.59 21.76
01:03:05.392 -48:27:31.47  AT 2026xtj  2026-07-20.74 19.53
09:35:34.709 +00:56:04.68  AT 2026xti  2026-01-27.47 21.2
21:52:33.253 -17:58:16.44  AT 2026xth  2026-08-06.68 19.94
12:08:48.403 -07:54:21.72  AT 2026xtg  2026-02-24.49 20.36
02:00:20.418 -49:16:45.81  AT 2026xtf  2026-07-20.78 19.97
10:46:21.315 -03:27:30.71  AT 2026xte  2026-01-20.62 22.02
02:26:56.393 -42:38:05.65  AT 2026xtd  2026-07-20.77 19.71
09:49:53.865 +05:48:24.44  AT 2026xtc  2026-01-11.59 22.2
02:48:02.176 -56:19:29.33  AT 2026xtb  2026-07-20.80 19.96
00:20:16.346 -20:36:53.55  AT 2026xta  2026-08-06.64 19.91
23:40:20.063 -20:05:55.81  AT 2026xsz  2026-07-21.72 20.55
01:51:20.204 -06:48:48.83  AT 2026xsy  2026-07-20.76 19.66
19:03:24.963 +30:17:50.43  AT 2026xsx  2026-08-05.87 18.93
22:46:52.408 -07:52:32.86  AT 2026xsw  2026-08-05.65 18.73
07:13:40.090 +40:40:34.39  AT 2026xsv  2026-02-06.29 20.62
00:27:08.471 -13:06:25.38  AT 2026xsu  2026-08-06.65 19.81
00:17:40.281 -15:08:19.75  SN 2026xst  2026-08-06.65 19.39
23:07:10.081 -46:29:32.67  AT 2026xss  2026-08-01.76 19.43
23:24:16.986 -39:54:38.19  AT 2026xsr  2026-08-01.59 19.34
-rw-r--r-- 1 apache apache 88K Aug 29 05:01 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sat Aug 29 05:00:42 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 4s (0.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 31s (0.52 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 45s (0.75 min)
TIMING SExtractor: 8 seconds
TIMING matching_and_photometry: 5 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 4 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 22s (0.37 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 18s (0.30 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 1s (0.02 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 1s (0.02 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 44s (0.73 min)
FIELD_Tau-04-Q2b1x1: 105s (1.75 min)
=======================================
TOTAL_RUNTIME: 109s (1.82 min)
Finished: Sat Aug 29 05:02:31 CDT 2026