FITS images used in this processing run:

Field Tau-08-Q2b1x1 reference image: Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Field Tau-08-Q2b1x1 reference image: Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Field Tau-08-Q2b1x1 second-epoch image: Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Field Tau-08-Q2b1x1 second-epoch image: Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
First image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Last  image: 2461268.85034537 16.08.2026 08:24:19.840   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.66
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: 2 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):  6656
Objects passed selection criteria:  6614
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: 4255
Average stars matched: 4061 (95.4407 %)
Memory usage VmPeak:   233156 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 03:32:58 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: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
First image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Last  image: 2461268.85034537 16.08.2026 08:24:19.840   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 19
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.34
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: 8 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):  42449
Objects passed selection criteria:  42333
Measurements per detected object (mean, median, min, max):    2.5    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.5    2.0    2    4
Average stars detected per image: 28454.5
Average stars matched: 26843.2 (94.3375 %)
Memory usage VmPeak:   264844 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 03:33:36 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-08-Q2b1x1
#######################################
########### Starting Tau-08-Q2b1x1 ###########
Processing Tau-08-Q2b1x1
server tau has sufficient free disk space available: 897149 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 897149 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.png' -> 'transient_report/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits_preview.png'

Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits


renamed 'Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.png' -> 'transient_report/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits_preview.png'

Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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= 692.6543
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 582.5630
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1947.6755
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 483.6463
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1940.5887
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 483.7557
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.8119
INFO:                  SECOND_EPOCH__SD_ratio= 0.000
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 =                 25.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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= '2026-08-16T03:23:39.7984160' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T08:23:39.7984160' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.3497661804 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T08:23:49.7015935' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61268.3498807987 / 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      =      64.285203469895 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99985204280176 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =              15.1225 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     92.8013888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.78127261400079 / 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-08'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '04 17 09'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+06 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  =                20450 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20450 / [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=                 15.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 53.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 58.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            11.200896 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.600608 / [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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/d_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits :)

Spent 0.469560 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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/d_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
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 =                 25.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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= '2026-08-16T03:24:19.8400924' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T08:24:19.8400924' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.3502296298 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T08:24:29.7423765' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61268.350344236 / 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      =     64.2852034237983 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99985203348387 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.2611111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     92.8961111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =      3.7487067372605 / 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-08'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '04 17 09'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+06 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  =                20450 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20450 / [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=                 15.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 53.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 58.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            11.200896 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.600608 / [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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/d_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits :)

Spent 0.465067 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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/d_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Previews of the CALIBRATED second-epoch images:


fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits



fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
  
SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache
SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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: 2461268.84988192
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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty
wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty
wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits exists and is non-empty
wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image)
verification OK: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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: 04:17:16.928 +05:58:49.14 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-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits (1st new image)
verification OK: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Image size: 940.8'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 04:17:14.591 +06:02:29.74 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:14.591 +06:02:29.74
Angular distance between the image centers 0.0620 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits (2nd new image)
verification OK: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Image size: 940.7'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 04:17:13.884 +06:02:13.16 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:13.884 +06:02:13.16
Angular distance between the image centers 0.0581 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  04:17:14.591 +06:02:29.74
Second-epoch second image center 04:17:13.884 +06:02:13.16
Angular distance between the image centers 0.00546 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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.FzvYjdFkH6
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.Chygnr37rn
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits &> /tmp/tmp.BsJjWxTeKB
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits &> /tmp/tmp.mqIICoPRPb
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat
The reference image (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found
'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat'
Read 8663 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 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 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg
Loaded 5018 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): 4111 out of 4342 total matches.
Matched with Tycho-2 4342 out of 8663 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.922800
a=0.000000 b=1.000000 c=22.922800
From vast_summary.log: estimated ref. image limiting mag.:  -7.66
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.26

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.26

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 8663 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 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 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg
Loaded 5018 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): 4111 out of 4342 total matches.
Matched with Tycho-2 4342 out of 8663 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=6.0)
Read 7732 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.2889 to 72.2642 deg, Dec +0.7253 to +11.3032 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 56.2889 to 72.2642 deg, Dec 0.7253 to 11.3032 deg
Loaded 5008 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): 4066 out of 4298 total matches.
Matched with Tycho-2 4298 out of 7732 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=6.2)
____ 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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 2.1 pix  Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 2.3 pix  fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
 2.3 pix  fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Limiting magnitude estimates:
 15.3 mag.  Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 15.1 mag.  Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 13.2 mag.  fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
 13.2 mag.  fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
All-image limiting magnitude estimate:  13.2 (SNR )  10.7 (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.FzvYjdFkH6 (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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Checking if the catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS catalog name: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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=654, bad_region=1709, passed=8663
Got 8663 stars (including 6418 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
util/solve_plate_with_UCAC5 got 8663 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.22" 

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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24" 
Excluding outliers - 4899 stars left (next iteration limit 5388)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4899 sigma_overall_arcsec=0.254 sigma_q1_arcsec=0.304 sigma_q2_arcsec=0.236 sigma_q3_arcsec=0.234 sigma_q4_arcsec=0.207 n_q1=1740 n_q2=718 n_q3=1781 n_q4=660 worst_quadrant_to_overall_ratio=1.197
The image catalog is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.Chygnr37rn (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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Checking if the catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS catalog name: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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=626, bad_region=1495, passed=7732
Got 7732 stars (including 5720 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 7732 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (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 0.010464 (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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4899 stars left (next iteration limit 5388)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4899 sigma_overall_arcsec=0.354 sigma_q1_arcsec=0.441 sigma_q2_arcsec=0.360 sigma_q3_arcsec=0.308 sigma_q4_arcsec=0.311 n_q1=1755 n_q2=718 n_q3=1774 n_q4=652 worst_quadrant_to_overall_ratio=1.246
The image catalog is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.BsJjWxTeKB (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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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=171, bad_region=548, passed=2493
Got 2493 stars (including 1799 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat 
util/solve_plate_with_UCAC5 got 2493 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010453 (37.6 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 1755 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1754 matched stars entering correct_measured_positions(), 1754 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1754 matched stars entering correct_measured_positions(), 2027 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 1755 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1754 matched stars entering correct_measured_positions(), 2027 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Accuracy estimation diagnostic: 1754 matched stars entering correct_measured_positions(), 2027 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Excluding outliers - 1754 stars left (next iteration limit 1929)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1754 robust_rms=6.035 arcsec worst_quadrant_rms=8.689 arcsec
SIP_REFIT: SIP order 3 trial: matched=1754 robust_rms=0.579 arcsec worst_quadrant_rms=0.612 arcsec
SIP_REFIT: SIP order 5 trial: matched=1754 robust_rms=0.472 arcsec worst_quadrant_rms=0.483 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1754 robust_rms_before=1.444 arcsec robust_rms_before_corrected=0.445 arcsec robust_rms_after=0.472 arcsec worst_quadrant_rms_before=0.477 worst_quadrant_rms_after=0.483
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.477 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits N_match=1754 sigma_overall_arcsec=0.458 sigma_q1_arcsec=0.438 sigma_q2_arcsec=0.429 sigma_q3_arcsec=0.502 sigma_q4_arcsec=0.457 n_q1=543 n_q2=305 n_q3=596 n_q4=310 worst_quadrant_to_overall_ratio=1.097
The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits -region wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.mqIICoPRPb (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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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=164, bad_region=549, passed=2524
Got 2524 stars (including 1832 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat 
util/solve_plate_with_UCAC5 got 2524 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.7'
Seting catalog search parameters based on the expected field of view 940.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013065 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010452 (37.6 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 1789 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1788 matched stars entering correct_measured_positions(), 1788 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1788 matched stars entering correct_measured_positions(), 2058 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 1788 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1786 matched stars entering correct_measured_positions(), 2058 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 1786 matched stars entering correct_measured_positions(), 2058 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 1786 stars left (next iteration limit 1966)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1786 robust_rms=6.058 arcsec worst_quadrant_rms=8.677 arcsec
SIP_REFIT: SIP order 3 trial: matched=1786 robust_rms=0.546 arcsec worst_quadrant_rms=0.643 arcsec
SIP_REFIT: SIP order 5 trial: matched=1786 robust_rms=0.448 arcsec worst_quadrant_rms=0.509 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1786 robust_rms_before=1.499 arcsec robust_rms_before_corrected=0.420 arcsec robust_rms_after=0.448 arcsec worst_quadrant_rms_before=0.447 worst_quadrant_rms_after=0.509
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.447 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits N_match=1786 sigma_overall_arcsec=0.443 sigma_q1_arcsec=0.416 sigma_q2_arcsec=0.429 sigma_q3_arcsec=0.483 sigma_q4_arcsec=0.453 n_q1=547 n_q2=313 n_q3=617 n_q4=309 worst_quadrant_to_overall_ratio=1.091
The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits -region wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Saving the final (post-refit) wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits to local_wcs_cache/
'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits'
Saving the final (post-refit) wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits to local_wcs_cache/
'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits'
Saving the final (post-refit) wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits to local_wcs_cache/
'wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits'
Saving the final (post-refit) wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits to local_wcs_cache/
'wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits sigma_overall=0.254 worst_q_ratio=1.197
ref2=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits sigma_overall=0.354 worst_q_ratio=1.246
new1=fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits sigma_overall=0.458 worst_q_ratio=1.097
new2=fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits sigma_overall=0.443 worst_q_ratio=1.091
reference average sigma_overall=0.304 worst_q_ratio=1.2215
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193_astrometric_residuals.png (4899 matched stars from wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.22 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108_astrometric_residuals.png (4899 matched stars from wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396_astrometric_residuals.png (1754 matched stars from wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.40 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397_astrometric_residuals.png (1786 matched stars from wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.39 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits'
Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits'
Preparing the HTML report for the field Tau-08-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Tau-08-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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
  
SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache
SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Creating symlink local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty
wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty
wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits exists and is non-empty
wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image)
verification OK: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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: 04:17:16.928 +05:58:49.14 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-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits (1st new image)
verification OK: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Image size: 940.8'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 04:17:14.591 +06:02:29.74 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:14.591 +06:02:29.74
Angular distance between the image centers 0.0620 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits (2nd new image)
verification OK: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Image size: 940.7'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 04:17:13.884 +06:02:13.16 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:13.884 +06:02:13.16
Angular distance between the image centers 0.0581 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  04:17:14.591 +06:02:29.74
Second-epoch second image center 04:17:13.884 +06:02:13.16
Angular distance between the image centers 0.00546 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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.fusqPJzb2W
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.2JEtGTYH2y
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits &> /tmp/tmp.ZDUbAWTBiK
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits &> /tmp/tmp.dyXnVGQzeK
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat
The reference image (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found
'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat'
Read 52195 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 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 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg
Loaded 5032 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): 3858 out of 4399 total matches.
Matched with Tycho-2 4399 out of 52195 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.791450
a=0.000000 b=1.000000 c=22.791450
From vast_summary.log: estimated ref. image limiting mag.:  -7.34
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.45

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.45

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 52195 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 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 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg
Loaded 5032 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): 3858 out of 4399 total matches.
Matched with Tycho-2 4399 out of 52195 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=4.6)
Read 48772 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.2863 to 72.2642 deg, Dec +0.7157 to +11.3031 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 56.2863 to 72.2642 deg, Dec 0.7157 to 11.3031 deg
Loaded 5014 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): 3858 out of 4392 total matches.
Matched with Tycho-2 4392 out of 48772 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=4.6)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 14 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 1.9 pix  Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 2.1 pix  fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
 2.1 pix  fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Limiting magnitude estimates:
 15.5 mag.  Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 15.3 mag.  Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 13.6 mag.  fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
 13.7 mag.  fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
All-image limiting magnitude estimate:  13.6 (SNR )  13.3 (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.fusqPJzb2W (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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Checking if the catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS catalog name: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=9, blended=2672, bad_region=8043, passed=52186
Got 52186 stars (including 41786 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
util/solve_plate_with_UCAC5 got 52186 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 4913 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25" 
Excluding outliers - 4913 stars left (next iteration limit 5404)
Stop iterations.


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

SIP_REFIT: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4913 sigma_overall_arcsec=0.246 sigma_q1_arcsec=0.304 sigma_q2_arcsec=0.232 sigma_q3_arcsec=0.225 sigma_q4_arcsec=0.207 n_q1=1732 n_q2=718 n_q3=1791 n_q4=672 worst_quadrant_to_overall_ratio=1.233
The image catalog is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.2JEtGTYH2y (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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Checking if the catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS catalog name: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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=11, blended=2468, bad_region=7461, passed=48761
Got 48761 stars (including 39142 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 48761 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (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 0.010464 (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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4916 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 4911 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4916 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4911 stars left (next iteration limit 5402)
Stop iterations.


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

SIP_REFIT: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4911 sigma_overall_arcsec=0.338 sigma_q1_arcsec=0.417 sigma_q2_arcsec=0.343 sigma_q3_arcsec=0.302 sigma_q4_arcsec=0.294 n_q1=1733 n_q2=718 n_q3=1797 n_q4=663 worst_quadrant_to_overall_ratio=1.233
The image catalog is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.ZDUbAWTBiK (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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=3, blended=425, bad_region=3030, passed=17534
Got 17534 stars (including 14128 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat 
util/solve_plate_with_UCAC5 got 17534 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010453 (37.6 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4889 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4882 matched stars entering correct_measured_positions(), 4882 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4882 matched stars entering correct_measured_positions(), 15334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 

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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4888 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4882 matched stars entering correct_measured_positions(), 15334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Accuracy estimation diagnostic: 4882 matched stars entering correct_measured_positions(), 15334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 4882 stars left (next iteration limit 5370)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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=4882 robust_rms=5.956 arcsec worst_quadrant_rms=8.777 arcsec
SIP_REFIT: SIP order 3 trial: matched=4882 robust_rms=0.628 arcsec worst_quadrant_rms=0.667 arcsec
SIP_REFIT: SIP order 5 trial: matched=4882 robust_rms=0.519 arcsec worst_quadrant_rms=0.558 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4882 robust_rms_before=1.447 arcsec robust_rms_before_corrected=0.469 arcsec robust_rms_after=0.519 arcsec worst_quadrant_rms_before=0.496 worst_quadrant_rms_after=0.558
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.496 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits N_match=4882 sigma_overall_arcsec=0.481 sigma_q1_arcsec=0.478 sigma_q2_arcsec=0.489 sigma_q3_arcsec=0.506 sigma_q4_arcsec=0.462 n_q1=1425 n_q2=839 n_q3=1659 n_q4=959 worst_quadrant_to_overall_ratio=1.050
The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits -region wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.dyXnVGQzeK (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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=433, bad_region=3023, passed=17598
Got 17598 stars (including 14211 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat 
util/solve_plate_with_UCAC5 got 17598 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.7'
Seting catalog search parameters based on the expected field of view 940.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013065 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010452 (37.6 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4893 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 4883 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 15382 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4895 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 15382 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 15382 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Excluding outliers - 4883 stars left (next iteration limit 5371)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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=4883 robust_rms=6.118 arcsec worst_quadrant_rms=8.322 arcsec
SIP_REFIT: SIP order 3 trial: matched=4883 robust_rms=0.603 arcsec worst_quadrant_rms=0.673 arcsec
SIP_REFIT: SIP order 5 trial: matched=4883 robust_rms=0.509 arcsec worst_quadrant_rms=0.566 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4883 robust_rms_before=1.492 arcsec robust_rms_before_corrected=0.458 arcsec robust_rms_after=0.509 arcsec worst_quadrant_rms_before=0.473 worst_quadrant_rms_after=0.566
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.473 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits N_match=4883 sigma_overall_arcsec=0.468 sigma_q1_arcsec=0.451 sigma_q2_arcsec=0.468 sigma_q3_arcsec=0.501 sigma_q4_arcsec=0.457 n_q1=1422 n_q2=836 n_q3=1680 n_q4=945 worst_quadrant_to_overall_ratio=1.072
The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits -region wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
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-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.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_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/wcs_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits
Preparing the HTML report for the field Tau-08-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:18:39.73 +04:45:41.1:  13.42 +/- 0.03  detection
Forced photometry on wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:18:39.73 +04:45:41.1:  13.38 +/- 0.04  detection
Forced photometry reference-image weighted average:  13.40 +/- 0.02
Forced photometry filter REJECTED candidate at 04:18:39.73 +04:45:41.1: ref_mag=13.40 +/- 0.02 new_mean_mag=13.0856 delta=0.32 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 0s
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: 1s
  
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Considering the candidate 64434_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 64434_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.98    04:04:03.17 +01:59:13.2   2750 0776   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (22.4") between the two second-epoch detections
  
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Considering the candidate 64904_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 64904_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    10.52    04:31:43.70 +02:25:24.1   6939 0981   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (20.4") between the two second-epoch detections
  
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Considering the candidate 65763_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 65763_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.00    04:26:04.27 +09:56:44.3   6148 5544   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (19.5") between the two second-epoch detections
  
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Considering the candidate 65908_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 65908_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.04    04:26:17.52 +06:29:10.1   6151 3449   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (19.9") between the two second-epoch detections
  
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Considering the candidate 66363_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66363_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.67    04:03:27.99 +09:55:10.8   2777 5588   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (18.7") between the two second-epoch detections
  
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Considering the candidate 66657_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66657_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.36    04:28:39.44 +04:10:57.3   6488 2053   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (19.9") between the two second-epoch detections
  
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Considering the candidate 66758_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66758_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.98    04:21:37.20 +08:28:01.5   5470 4654   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (20.0") between the two second-epoch detections
  
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Considering the candidate 66797_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66797_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.56    04:26:53.71 +07:07:14.6   6247 3831   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

**** FOUND  04:26:53.71 +07:07:14.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 66838_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66838_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.68    04:31:27.21 +09:40:23.9   6950 5374   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (20.0") between the two second-epoch detections
  
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Considering the candidate 66932_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 66932_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    12.65    04:28:27.08 +06:36:26.4   6476 3519   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (19.8") between the two second-epoch detections
  
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Considering the candidate 67485_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 67485_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    13.44    04:02:48.33 +09:42:23.8   2675 5461   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (18.5") between the two second-epoch detections
  
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Considering the candidate 67648_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 67648_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 1     2026 08 16.34988    2461268.84988    13.08    04:18:39.68 +04:45:42.0   4988 2419   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-23-39_20.00sec_-0.00C_LIGHT_0396.fits
Discovery image 2     2026 08 16.35035    2461268.85035    13.09    04:18:39.79 +04:45:40.1   4990 2422   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

  
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Considering the candidate 68123_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 68123_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 2     2026 08 16.35035    2461268.85035    13.17    04:07:33.03 +05:32:38.7   3330 2923   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

Rejecting candidate due to large distance (19.3") between the two second-epoch detections
  
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Considering the candidate 24664_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397
The candidate 24664_fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397 did not pass the final checks
Discovery image 3     2026 08 16.35035    2461268.85035    11.91    04:23:24.06 +06:34:31.3   5718 3508   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Tau-08-Q2b1x1_033044_TTUQ2b1x1_2115967_nrRqytEf/fd_Tau-08-Q2b1x1_2026-08-16_03-24-19_20.00sec_-0.00C_LIGHT_0397.fits

**** FOUND  04:23:24.05 +06:34:30.4 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-08-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Tau-08-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)2461268.84988192 -observatory V36
08:57:00.72 +18:28:08.7 Mercury (-1.4mag)
12:30:40.01 -04:58:07.4 Venus (-4.4mag)
06:12:45.75 +23:42:29.3 Mars (1.3mag)
08:50:12.75 +18:13:45.8 Jupiter (-1.8mag)
00:55:38.61 +03:08:15.8 Saturn (0.6mag)
04:12:33.83 +20:59:06.3 Uranus (5.7mag)
00:15:34.80 +00:09:24.7 Neptune (7.7mag)
20:27:22.75 -23:33:10.8 Pluto (14.5mag)
12:28:47.45 -07:21:22.3 Moon (-9.3mag)
-rw-r--r-- 1 apache apache 362 Aug 16 03:32 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461268.84988192:
08:50:15.98 +18:13:33.0 Io (6.1mag)
08:50:18.63 +18:13:19.8 Europa (6.3mag)
08:50:26.33 +18:12:43.3 Ganymede (5.6mag)
08:50:13.26 +18:13:41.4 Callisto (6.8mag)
08:47:41.03 +18:18:07.5 Himalia (15.7mag)
08:50:10.85 +18:13:54.9 Thebe (16.6mag)
08:47:17.84 +18:15:04.5 Elara (17.7mag)
08:54:21.49 +17:49:32.7 Pasiphae (17.9mag)
08:52:50.77 +18:25:53.1 Carme (19.0mag)
00:55:49.02 +03:07:48.6 Titan (8.4mag)
00:55:35.82 +03:08:00.0 Rhea (9.7mag)
00:56:07.28 +03:08:44.9 Iapetus (11.1mag)
00:55:51.38 +03:07:40.3 Hyperion (14.4mag)
00:54:50.73 +03:00:24.4 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 16 03:33 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461268.84988192:
19:38:50.14 -18:21:53.4 JWST
16:02:00.88 +48:42:45.0 Chandra
10:49:51.17 -58:57:45.2 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 16 03:33 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461268.84988192 -observatory V36
03:22:26.87 +18:01:13.9 17.6mag P/1996 R2 (Lagerkvist)
18:00:10.39 -34:33:16.6 14.1mag P/2010 H2 (Vales)
07:01:13.21 -69:13:24.2 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:11:50.57 +33:10:12.2 17.7mag C/2017 K2 (PANSTARRS)
04:06:22.35 +40:43:12.0 17.2mag P/2021 N1 (ZTF)
22:31:50.09 +30:53:16.8 17.3mag C/2022 E2 (ATLAS)
06:51:22.91 +26:23:46.2 16.8mag C/2022 N2 (PANSTARRS)
10:29:06.84 +28:06:33.1 17.0mag C/2022 QE78 (ATLAS)
09:34:18.41 +05:18:33.3 17.9mag C/2022 R6 (PANSTARRS)
15:14:05.62 -12:36:57.2 17.9mag P/2023 B1 (PANSTARRS)
21:00:22.25 +64:59:26.4 17.9mag C/2023 H5 (Lemmon)
15:40:37.70 -13:41:16.6 14.5mag C/2023 R1 (PANSTARRS)
08:17:00.32 +31:43:13.9 15.4mag C/2024 E1 (Wierzchos)
15:05:58.91 +15:33:37.1 17.8mag C/2024 G6 (ATLAS)
18:53:20.14 +43:24:51.1 13.7mag C/2024 J3 (ATLAS)
20:58:31.91 +49:34:57.6 17.5mag C/2024 R4 (PANSTARRS)
05:21:26.49 -12:54:16.6 15.4mag C/2024 T5 (ATLAS)
07:01:16.40 +22:42:26.8 17.9mag C/2025 J1 (Borisov)
10:44:25.71 +20:22:28.7 17.2mag C/2025 V2 (Rankin)
13:03:15.62 +01:47:30.2 16.9mag C/2025 Y1 (ATLAS)
16:04:49.99 +76:59:43.3 16.6mag C/2026 A2 (Bok)
03:09:35.38 +46:18:48.8 17.2mag C/2026 B2 (Sun-Gao)
11:53:37.55 +09:22:16.1 17.4mag A/2026 E1
22:06:46.94 -30:25:57.9 7.0mag 10P/Tempel
11:33:55.49 -03:54:58.5 16.3mag 29P/Schwassmann-Wachmann
11:24:14.07 +01:58:54.3 17.3mag 63P/Wild
00:53:10.41 -05:47:35.2 15.4mag 65P/Gunn
05:53:44.87 +20:29:25.1 13.7mag 78P/Gehrels
20:30:43.61 -24:25:09.9 17.6mag 84P/Giclas
03:07:55.36 +14:13:47.1 16.8mag 88P/Howell
08:16:12.18 +26:30:22.1 16.3mag 93P/Lovas
04:29:38.03 +20:02:50.8 17.4mag 112P/Urata-Niijima
06:23:11.40 +29:17:06.2 16.2mag 114P/Wiseman-Skiff
09:37:40.19 +25:13:14.5 14.9mag 123P/West-Hartley
12:00:07.58 -13:21:45.7 17.2mag 124P/Mrkos
05:48:21.59 +21:07:06.1 16.0mag 128P/Shoemaker-Holt
06:42:12.32 +18:28:11.5 17.9mag 131P/Mueller
00:01:35.46 +03:16:29.2 17.5mag 139P/Vaisala-Oterma
03:15:47.46 -18:51:22.2 13.3mag 161P/Hartley-IRAS
07:43:51.38 +38:05:26.2 16.0mag 162P/Siding Spring
12:30:02.28 +38:06:41.1 12.0mag 169P/NEAT
02:57:03.62 +09:31:47.2 17.6mag 220P/McNaught
16:46:24.30 -10:41:25.8 17.9mag 235P/LINEAR
20:17:58.85 -52:26:32.4 17.9mag 259P/Garradd
03:45:50.56 +28:30:33.7 15.3mag 260P/McNaught
07:29:42.56 +37:25:59.3 17.3mag 295P/LINEAR
15:13:28.28 +02:14:01.2 17.8mag 391P/Kowalski
09:08:17.42 +17:58:21.1 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 16 03:33 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
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
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
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
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
14:20:14.30 -30:20:51.90  AT2026ktm  2026-05-12.06 17.21
14:41:39.01 -37:13:46.40  AT2026lkm  2026-05-11.18 16.89
12:59:50.45 -10:58:38.80  SN2026kep  2026-05-9.06 17.5
13:37:29.61 -29:50:30.90  AT2026lkd  2026-05-9.09 17.23
09:46:42.01 -14:52:03.60  SN2026kmo  2026-05-8.99 17.51
15:03:05.28 +22:02:03.40  AT2026lxf  2026-05-8.07 13.88
10:23:49.41 -20:57:25.30  ASASSN-26df  2026-05-8.21 16.52
22:14:40.56 +05:04:51.60  2026lda  2026-05-7.56 16.2
21:35:33.81 -14:05:16.30  ASASSN-26de  2026-05-6.29 14.51
16:21:49.13 -61:36:14.60  ASASSN-26dd  2026-05-5.15 15.93
-rw-r--r-- 1 apache apache 5.7K Aug 16 03:32 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:42:38.68 +41:15:58.2  PNV J00423868+4115582  2026-06-05.1224  19.97Umag
19:00:42.95 -48:31:01.7  PNV J19004295-4831017  2026-05-25.0752  14.2mag
09:55:21.28 +69:02:52.6  PNV J09552128+6902526  2026-06-13.933  18.9mag
19:51:21.42 +37:06:40.0  TCP J19512142+3706400  2026-06-17.2942  16.8mag
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
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
-rw-r--r-- 1 apache apache 190K Aug 16 03:32 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
15:52:09.810 +21:23:36.58  AT 2026wur  2026-05-19.33 21.14
17:21:27.821 +31:45:59.75  AT 2026wuq  2026-07-24.44 20.99
16:06:39.962 -00:03:48.96  AT 2026wup  2026-07-08.37 20.6
23:36:31.132 -01:42:30.56  AT 2026wuo  2026-07-25.58 21.53
14:58:54.953 +20:56:59.36  AT 2026wun  2026-06-12.38 21.33
13:29:54.424 -08:02:17.84  AT 2026wum  2026-05-12.34 21.76
15:31:56.171 -23:07:56.50  AT 2026wul  2026-07-16.29 21.12
15:50:35.869 +16:13:29.04  AT 2026wuk  2026-06-08.46 20.66
14:46:52.387 +23:41:33.95  AT 2026wuj  2026-07-19.29 20.84
02:33:14.312 +23:53:11.23  AT 2026wui  2026-07-25.60 21.47
23:59:19.033 +30:37:28.65  AT 2026wuh  2026-07-23.54 21.33
16:12:22.633 +29:40:38.32  AT 2026wug  2026-05-17.56 21.06
22:44:11.171 +19:47:25.41  AT 2026wuf  2026-06-22.52 21.62
18:17:56.544 +19:41:21.89  SN 2026wue  2026-08-02.91 19.16
21:01:30.094 -22:58:14.18  AT 2026wud  2026-08-02.45 20.19
17:15:36.662 +19:40:23.08  AT 2026wuc  2026-08-02.89 19.57
21:28:21.020 -26:47:22.51  AT 2026wub  2026-08-01.60 19.12
22:35:35.158 -48:27:31.72  AT 2026wua  2026-07-27.55 19.31
13:33:02.514 +37:11:45.73  AT 2026wtz  2026-08-02.28 17.867
23:09:39.462 -49:07:04.71  AT 2026wty  2026-07-20.06 19.281
-rw-r--r-- 1 apache apache 87K Aug 16 03:32 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sun Aug 16 03:32:41 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 21s (0.35 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 6s (0.10 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: 31s (0.52 min)
TIMING SExtractor: 4 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 9s (0.15 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 0s (0.00 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 9s (0.15 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 20s (0.33 min)
FIELD_Tau-08-Q2b1x1: 63s (1.05 min)
=======================================
TOTAL_RUNTIME: 66s (1.10 min)
Finished: Sun Aug 16 03:33:47 CDT 2026