######## 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
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP=
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION=
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER=
HOME=
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory:
Tau-04-Q2b1x1
#######################################
########### Starting Tau-04-Q2b1x1 ###########
Processing Tau-04-Q2b1x1
WARNING: server tau is low on disk space, only 49408 MB free at /data_ssd/NMW-TexasTech/workdir
WARNING: server tau is low on disk space, only 49408 MB free at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Small preview (one of the new images): 
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.png' -> 'transient_report/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits_preview.png'
Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
renamed 'Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.png' -> 'transient_report/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits_preview.png'
Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 599.0891
INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 758.4070
INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 2931.8120
INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 544.5585
INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 2934.5061
INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 550.6186
----------------------------------------------
INFO: ref_to_second_epoch_img_mean_ratio= 4.89378
INFO: SECOND_EPOCH__SD_ratio= 0.011
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 = 22.6100006103516 / [degC] Focuser temperature
AMBTEMP = 22.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE = T / C# FITS" status=0
Record 2: "BITPIX = 16" status=0
Record 3: "NAXIS = 2 / Dimensionality" status=0
Record 4: "NAXIS1 = 9576" status=0
Record 5: "NAXIS2 = 6388" status=0
Record 6: "BZERO = 32768" status=0
Record 7: "EXTEND = T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT' / Type of exposure" status=0
Record 9: "EXPOSURE= 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME = 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-21T01:36:37.2716244' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-21T06:36:37.2716244' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS = 61304.2754313773 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-21T06:36:47.1725367' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG = 61304.2755459724 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING= 1 / X axis binning factor" status=0
Record 17: "YBINNING= 1 / Y axis binning factor" status=0
Record 18: "GAIN = 30 / Sensor gain" status=0
Record 19: "OFFSET = 30 / Sensor gain offset" status=0
Record 20: "XPIXSZ = 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ = 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M' / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP= 0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP= 0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0' / Sensor readout mode" status=0
Record 27: "USBLIMIT= 50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2' / Name of telescope" status=0
Record 29: "FOCALLEN= 135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO= 2.2 / Focal ratio" status=0
Record 31: "RA = 83.0739576452195 / [deg] RA of telescope" status=0
Record 32: "DEC = 21.9994795924463 / [deg] Declination of telescope" status=0
Record 33: "CENTALT = 15.1616666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ = 73.3741666666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS = 3.77201207021992 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0
Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0
Record 42: "SITENAME= '' / Observatory site name" status=0
Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0
Record 44: "FILTER = 'CV' / Active filter name" status=0
Record 45: "OBJECT = 'Tau-04' / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19' / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00' / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT= 0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser' / Focusing equipment name" status=0
Record 50: "FOCPOS = 20507 / [step] Focuser position" status=0
Record 51: "FOCUSPOS= 20507 / [step] Focuser position" status=0
Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP = 22.6100006103516 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM= 22.6100006103516 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT= 13.3 / [degC] Dew point" status=0
Record 56: "HUMIDITY= 55.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE= 900.31 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP = 22.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR = 23.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST= 0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD = 0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0
Record 63: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP = 85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP = 85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP = 20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL = 6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF = 235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM = T / isLongExposureMode" status=0
Record 74: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits 9576 6388 16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388 16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/d_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits :)
Spent 0.618090 seconds
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/d_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits 9576 6388 16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388 16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits :)
No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
EXPTIME = 20.0 / [s] Exposure duration
SET-TEMP= 0.0 / [degC] CCD temperature setpoint
CCD-TEMP= -0.0 / [degC] CCD temperature
FOCTEMP = 22.6499996185303 / [degC] Focuser temperature
AMBTEMP = 22.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE = T / C# FITS" status=0
Record 2: "BITPIX = 16" status=0
Record 3: "NAXIS = 2 / Dimensionality" status=0
Record 4: "NAXIS1 = 9576" status=0
Record 5: "NAXIS2 = 6388" status=0
Record 6: "BZERO = 32768" status=0
Record 7: "EXTEND = T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT' / Type of exposure" status=0
Record 9: "EXPOSURE= 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME = 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-21T01:37:18.7655989' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-21T06:37:18.7655989' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS = 61304.275911632 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-21T06:37:28.6657789' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG = 61304.2760262154 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING= 1 / X axis binning factor" status=0
Record 17: "YBINNING= 1 / Y axis binning factor" status=0
Record 18: "GAIN = 30 / Sensor gain" status=0
Record 19: "OFFSET = 30 / Sensor gain offset" status=0
Record 20: "XPIXSZ = 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ = 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M' / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP= 0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP= -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0' / Sensor readout mode" status=0
Record 27: "USBLIMIT= 50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2' / Name of telescope" status=0
Record 29: "FOCALLEN= 135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO= 2.2 / Focal ratio" status=0
Record 31: "RA = 83.0739575721811 / [deg] RA of telescope" status=0
Record 32: "DEC = 21.9994795845149 / [deg] Declination of telescope" status=0
Record 33: "CENTALT = 15.3013888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ = 73.4602777777778 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS = 3.73935110709526 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0
Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0
Record 42: "SITENAME= '' / Observatory site name" status=0
Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0
Record 44: "FILTER = 'CV' / Active filter name" status=0
Record 45: "OBJECT = 'Tau-04' / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 32 19' / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 00 00' / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT= 0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser' / Focusing equipment name" status=0
Record 50: "FOCPOS = 20507 / [step] Focuser position" status=0
Record 51: "FOCUSPOS= 20507 / [step] Focuser position" status=0
Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP = 22.6499996185303 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM= 22.6499996185303 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT= 13.3 / [degC] Dew point" status=0
Record 56: "HUMIDITY= 55.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE= 900.31 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP = 22.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR = 23.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST= 0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD = 0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0
Record 63: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP = 85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP = 85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP = 20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL = 6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF = 235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM = T / isLongExposureMode" status=0
Record 74: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits 9576 6388 16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388 16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/d_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits :)
Spent 0.641815 seconds
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/d_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits 9576 6388 16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388 16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits :)
No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Dark frame used to calibrate the second-epoch images:
Flat field used to calibrate the second-epoch images:
after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Previews of the CALIBRATED second-epoch images:
fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Checking WCS cache directory local_wcs_cache
Checking 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: 2461304.77554712
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1' 15.7(deg)x10.5(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Image size: 941.2'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 05:32:22.184 +21:54:28.26 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:22.184 +21:54:28.26
Angular distance between the image centers 0.0921 deg.
Soft limit: 0.50 deg. Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Image size: 941.1'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 05:32:19.870 +21:54:32.20 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:19.870 +21:54:32.20
Angular distance between the image centers 0.0904 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center 05:32:22.184 +21:54:28.26
Second-epoch second image center 05:32:19.870 +21:54:32.20
Angular distance between the image centers 0.00901 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.czFZSpfhyl
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.3g6FSuog76
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits &> /tmp/tmp.nhubqCw7sw
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits &> /tmp/tmp.6SMkKHBKNw
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 22997 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3514 to 91.9479 deg, Dec +16.4790 to +27.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3514 to 91.9479 deg, Dec 16.4790 to 27.2884 deg
Loaded 12406 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8976 out of 10160 total matches.
Matched with Tycho-2 10160 out of 22997 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.969200
a=0.000000 b=1.000000 c=22.969200
From vast_summary.log: estimated ref. image limiting mag.: -7.53
Updating vast_summary.log: Estimated ref. image limiting mag.: 15.44
Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed! =)
Estimated ref. image limiting mag.: 15.44
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 22997 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3514 to 91.9479 deg, Dec +16.4790 to +27.2884 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3514 to 91.9479 deg, Dec 16.4790 to 27.2884 deg
Loaded 12406 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8976 out of 10160 total matches.
Matched with Tycho-2 10160 out of 22997 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (aperture=6.0)
Read 20916 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3773 to 91.9061 deg, Dec +16.4876 to +27.3008 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3773 to 91.9061 deg, Dec 16.4876 to 27.3008 deg
Loaded 12329 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 8847 out of 10017 total matches.
Matched with Tycho-2 10017 out of 20916 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=5.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering. (Hard limit: 10000)
Median FWHM seeing for isolated stars:
2.0 pix Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
2.0 pix Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
2.4 pix fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
2.3 pix fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Limiting magnitude estimates:
15.4 mag. Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
15.4 mag. Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
13.0 mag. fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
12.9 mag. fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
All-image limiting magnitude estimate: 12.9 (SNR ) 10.5 (80% of stars) with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of following Karpov (2025, Acta Polytechnica, 65, 50).
This value should be representative of the faintest stars clearly visible in the image.
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.czFZSpfhyl (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst)
Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst)
Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst)
Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst)
Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst)
Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst)
Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst)
Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst)
Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2479, bad_region=3694, passed=22997
Got 22997 stars (including 17090 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
util/solve_plate_with_UCAC5 got 22997 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
catalog_search_parameters->brightest_mag= 1.00
catalog_search_parameters->faintest_mag= 13.50
catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4775 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 4706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4774 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34"
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 20056 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38"
Excluding outliers - 4705 stars left (next iteration limit 5175)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4705 sigma_overall_arcsec=0.386 sigma_q1_arcsec=0.461 sigma_q2_arcsec=0.374 sigma_q3_arcsec=0.350 sigma_q4_arcsec=0.273 n_q1=1788 n_q2=376 n_q3=1844 n_q4=697 worst_quadrant_to_overall_ratio=1.193
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.3g6FSuog76 (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat
Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst)
Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst)
Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst)
Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst)
Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst)
Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst)
Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst)
Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst)
Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2320, bad_region=3377, passed=20916
Got 20916 stars (including 15475 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat
util/solve_plate_with_UCAC5 got 20916 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
catalog_search_parameters->brightest_mag= 1.00
catalog_search_parameters->faintest_mag= 13.50
catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4776 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 4708 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4707 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4777 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4708 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44"
Accuracy estimation diagnostic: 4708 matched stars entering correct_measured_positions(), 18215 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49"
Excluding outliers - 4708 stars left (next iteration limit 5177)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4708 sigma_overall_arcsec=0.515 sigma_q1_arcsec=0.605 sigma_q2_arcsec=0.498 sigma_q3_arcsec=0.464 sigma_q4_arcsec=0.402 n_q1=1784 n_q2=371 n_q3=1863 n_q4=690 worst_quadrant_to_overall_ratio=1.175
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.nhubqCw7sw (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.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=59, bad_region=617, passed=1343
Got 1343 stars (including 688 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat
util/solve_plate_with_UCAC5 got 1343 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.2'
Seting catalog search parameters based on the expected field of view 941.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013072 (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 0.010458 (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 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 662 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 650 matched stars entering correct_measured_positions(), 638 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.88"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 649 matched stars entering correct_measured_positions(), 782 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.88"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 662 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 648 matched stars entering correct_measured_positions(), 783 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.88"
Accuracy estimation diagnostic: 648 matched stars entering correct_measured_positions(), 783 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.88"
Excluding outliers - 648 stars left (next iteration limit 713)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: the 648 catalog matches do not cover the frame (78/177/20/373 per quadrant, need 40 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits N_match=648 sigma_overall_arcsec=1.021 sigma_q1_arcsec=1.407 sigma_q2_arcsec=1.023 sigma_q3_arcsec=1.764 sigma_q4_arcsec=0.906 n_q1=78 n_q2=177 n_q3=20 n_q4=373 worst_quadrant_to_overall_ratio=1.728
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.6SMkKHBKNw (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.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=62, bad_region=608, passed=1187
Got 1187 stars (including 540 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat
util/solve_plate_with_UCAC5 got 1187 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (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 532 to 587 (Dec 16.5 to 27.1)
Done reading UCAC5 zone files...
Matched 516 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 509 matched stars entering correct_measured_positions(), 488 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.72"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 509 matched stars entering correct_measured_positions(), 636 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.71"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.1)
Done reading UCAC5 zone files...
Matched 516 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 509 matched stars entering correct_measured_positions(), 637 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.72"
Accuracy estimation diagnostic: 509 matched stars entering correct_measured_positions(), 637 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.74"
Excluding outliers - 509 stars left (next iteration limit 559)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: the 509 catalog matches do not cover the frame (43/127/27/312 per quadrant, need 31 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits N_match=509 sigma_overall_arcsec=0.894 sigma_q1_arcsec=0.926 sigma_q2_arcsec=0.817 sigma_q3_arcsec=2.193 sigma_q4_arcsec=0.817 n_q1=43 n_q2=127 n_q3=27 n_q4=312 worst_quadrant_to_overall_ratio=2.453
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
Saving the final (post-refit) wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits to local_wcs_cache/
'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits'
Saving the final (post-refit) wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits to local_wcs_cache/
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits' -> 'local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits sigma_overall=0.386 worst_q_ratio=1.193
ref2=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits sigma_overall=0.515 worst_q_ratio=1.175
new1=fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits sigma_overall=1.021 worst_q_ratio=1.728
new2=fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits sigma_overall=0.894 worst_q_ratio=2.453
reference average sigma_overall=0.4505 worst_q_ratio=1.184
warn-on-ratio threshold: 2.0x reference
###################################
ERROR: large change in astrometric-star counts between the two new images (q1: 78 -> 43, 44.872% > 20%; fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits vs fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits) - possible passing clouds or a bad plate solution; continuing processing
ERROR: large change in astrometric-star counts between the two new images (q2: 177 -> 127, 28.249% > 20%; fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits vs fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits) - possible passing clouds or a bad plate solution; continuing processing
ERROR: large change in astrometric-star counts between the two new images (q3: 20 -> 27, 25.926% > 20%; fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits vs fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits) - possible passing clouds or a bad plate solution; continuing processing
WCS_QUALITY_RETRY: 1st new image (fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits) flagged: sigma=1.021 (ref avg 0.4505), ratio=1.728 (ref avg 1.184), threshold=2.0x. Retrying with --tweak-order 2.
Running with VAST_TWEAK_ORDER=2: util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
No image with WCS calibration found for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits .... Determining astrometry method...
Using the local copy of Astrometry.net software...
Choosing aperture...
Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/lib/make_outxyls_for_astrometric_calibration found 1279 high-SNR stars for plate solving
This service uses tools provided by Astrometry.net.
For more information visit http://astrometry.net/
######### Trying to solve plate assuming 605' field of view #########
/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388 SCALE_LOW=544.5 SCALE_HIGH=3025.0
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out3793609.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3793609.axy"...
Field 1 did not solve (index index-4119.fits, field objects 1-10).
Field 1 did not solve (index index-4118.fits, field objects 1-10).
Field 1 did not solve (index index-4117.fits, field objects 1-10).
Field 1 did not solve (index index-4116.fits, field objects 1-10).
Field 1 did not solve (index index-4115.fits, field objects 1-10).
Field 1 did not solve (index index-4114.fits, field objects 1-10).
Field 1 did not solve (index index-4113.fits, field objects 1-10).
Field 1 did not solve (index index-4112.fits, field objects 1-10).
Field 1 did not solve (index index-4111.fits, field objects 1-10).
Field 1 did not solve (index index-4110.fits, field objects 1-10).
Field 1 did not solve (index index-4109.fits, field objects 1-10).
Field 1 did not solve (index index-4108.fits, field objects 1-10).
Field 1 did not solve (index index-4119.fits, field objects 11-20).
Field 1 did not solve (index index-4118.fits, field objects 11-20).
Field 1 did not solve (index index-4117.fits, field objects 11-20).
Field 1 did not solve (index index-4116.fits, field objects 11-20).
Field 1 did not solve (index index-4115.fits, field objects 11-20).
Field 1 did not solve (index index-4114.fits, field objects 11-20).
log-odds ratio 61.5791 (5.53946e+26), 14 match, 0 conflict, 16 distractors, 187 index.
RA,Dec = (83.094,21.9042), pixel scale 5.95546 arcsec/pix.
Hit/miss: Hit/miss: -----+-++++-+++------+--+++-++(best)--------+----+--------+-+--+------------++-------+--+-----------------
Field 1: solved with index index-4113.fits.
Field 1 solved: writing to file ./out3793609.solved to indicate this.
Field: out3793609.xyls
Field center: (RA,Dec) = (83.093016, 21.907113) deg.
Field center: (RA H:M:S, Dec D:M:S) = (05:32:22.324, +21:54:25.606).
Field size: 15.7762 x 10.5437 degrees
Field rotation angle: up is -1.24793 degrees E of N
Field parity: neg
Inserting WCS header... '/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits' -> 'fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits'
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep 21 01:40 fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
-rw-r--r-- 1 apache apache 12K Sep 21 01:40 out3793609.wcs
Inserting WCS header (1st iteration local)... Opening FITS image file fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits for reading... done!
Creating new image file (wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits)... done!
done!
All done!
done
The WCS header appears to be added with no errors in /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits (fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits)
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local ' / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local ' / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration01' / astrometry.net run
Reading input file 1 of 1: "out3793609.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3793609.axy"...
Only searching for solutions within 15.7267 degrees of RA,Dec (83.0939,21.908)
Field 1 did not solve (index index-4116.fits, field objects 1-100).
Field 1 did not solve (index index-4115.fits, field objects 1-100).
log-odds ratio 22.8776 (8.62188e+09), 4 match, 0 conflict, 6 distractors, 88 index.
RA,Dec = (83.0926,21.9057), pixel scale 5.94784 arcsec/pix.
Hit/miss: Hit/miss: ----++-+-+(best)------------------+-------------+--------+--------+---------------------------------------
Field 1: solved with index index-4114.fits.
Field 1 solved: writing to file ./out3793609.solved to indicate this.
Field: out3793609.xyls
Field center: (RA,Dec) = (83.093041, 21.907066) deg.
Field center: (RA H:M:S, Dec D:M:S) = (05:32:22.330, +21:54:25.437).
Field size: 15.7739 x 10.5431 degrees
Field rotation angle: up is -1.24759 degrees E of N
Field parity: neg
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep 21 01:40 fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
-rw-r--r-- 1 apache apache 12K Sep 21 01:40 out3793609.wcs
Inserting WCS header (2nd iteration local)... Opening FITS image file fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits for reading... done!
Creating new image file (wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits)... done!
done!
All done!
The WCS header appears to be added with no errors.
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local ' / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local ' / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration02' / astrometry.net run
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Generating wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat from image00003.cat
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits created.
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Image size: 943.6'x626.3' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.91"/pix along the X axis and 5.88"/pix along the Y axis
Image center: 05:32:22.539 +21:54:28.48 J2000 4789.000 3195.000
### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
### Converted positions of 1343 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/correct_sextractor_wcs_catalog_usingxy2sky3794035.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.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=59, bad_region=617, passed=1343
Got 1343 stars (including 688 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat
util/solve_plate_with_UCAC5 got 1343 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 943.6'
Seting catalog search parameters based on the expected field of view 943.6 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013106 (47.2 arcsec)
catalog_search_parameters->brightest_mag= 1.00
catalog_search_parameters->faintest_mag= 13.50
catalog_search_parameters->search_radius_second_step_deg 0.010484 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 643 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 620 matched stars entering correct_measured_positions(), 607 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.24"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 619 matched stars entering correct_measured_positions(), 747 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.27"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 649 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 625 matched stars entering correct_measured_positions(), 752 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.00"
Accuracy estimation diagnostic: 625 matched stars entering correct_measured_positions(), 760 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.97"
Excluding outliers - 625 stars left (next iteration limit 680)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: the 625 catalog matches do not cover the frame (55/177/20/373 per quadrant, need 39 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits N_match=625 sigma_overall_arcsec=1.504 sigma_q1_arcsec=2.500 sigma_q2_arcsec=1.482 sigma_q3_arcsec=2.852 sigma_q4_arcsec=1.180 n_q1=55 n_q2=177 n_q3=20 n_q4=373 worst_quadrant_to_overall_ratio=1.896
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
WCS_QUALITY_RETRY: --tweak-order 2 did NOT improve 1st new image (fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits): sigma 1.021->1.504, ratio 1.728->1.896; reverting to order 3
WCS_QUALITY_RETRY: 2nd new image (fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits) flagged: sigma=0.894 (ref avg 0.4505), ratio=2.453 (ref avg 1.184), threshold=2.0x. Retrying with --tweak-order 2.
Running with VAST_TWEAK_ORDER=2: util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
No image with WCS calibration found for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits .... Determining astrometry method...
Using the local copy of Astrometry.net software...
Choosing aperture...
Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/lib/make_outxyls_for_astrometric_calibration found 1136 high-SNR stars for plate solving
This service uses tools provided by Astrometry.net.
For more information visit http://astrometry.net/
######### Trying to solve plate assuming 605' field of view #########
/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388 SCALE_LOW=544.5 SCALE_HIGH=3025.0
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out3794259.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3794259.axy"...
Field 1 did not solve (index index-4119.fits, field objects 1-10).
Field 1 did not solve (index index-4118.fits, field objects 1-10).
Field 1 did not solve (index index-4117.fits, field objects 1-10).
Field 1 did not solve (index index-4116.fits, field objects 1-10).
Field 1 did not solve (index index-4115.fits, field objects 1-10).
Field 1 did not solve (index index-4114.fits, field objects 1-10).
log-odds ratio 21.1879 (1.59147e+09), 7 match, 0 conflict, 9 distractors, 187 index.
RA,Dec = (83.0892,21.9035), pixel scale 5.95489 arcsec/pix.
Hit/miss: Hit/miss: ------+-+-+++-++(best)-------+--+----+--------++-+--+--------++----+--------------+---------+------------+
Field 1: solved with index index-4113.fits.
Field 1 solved: writing to file ./out3794259.solved to indicate this.
Field: out3794259.xyls
Field center: (RA,Dec) = (83.083160, 21.908993) deg.
Field center: (RA H:M:S, Dec D:M:S) = (05:32:19.958, +21:54:32.377).
Field size: 15.7636 x 10.5461 degrees
Field rotation angle: up is -1.21832 degrees E of N
Field parity: neg
Inserting WCS header... '/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits' -> 'fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits'
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep 21 01:40 fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
-rw-r--r-- 1 apache apache 12K Sep 21 01:40 out3794259.wcs
Inserting WCS header (1st iteration local)... Opening FITS image file fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits for reading... done!
Creating new image file (wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits)... done!
done!
All done!
done
The WCS header appears to be added with no errors in /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits (fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits)
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local ' / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local ' / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration01' / astrometry.net run
Reading input file 1 of 1: "out3794259.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3794259.axy"...
Only searching for solutions within 15.7033 degrees of RA,Dec (83.084,21.9098)
Field 1 did not solve (index index-4116.fits, field objects 1-100).
Field 1 did not solve (index index-4115.fits, field objects 1-100).
Field 1 did not solve (index index-4114.fits, field objects 1-100).
log-odds ratio 21.1879 (1.59147e+09), 7 match, 0 conflict, 9 distractors, 187 index.
RA,Dec = (83.0892,21.9035), pixel scale 5.95489 arcsec/pix.
Hit/miss: Hit/miss: ------+-+-+++-++(best)-------+--+----+--------++-+--+--------++----+--------------+---------+------------+
Field 1: solved with index index-4113.fits.
Field 1 solved: writing to file ./out3794259.solved to indicate this.
Field: out3794259.xyls
Field center: (RA,Dec) = (83.083160, 21.908993) deg.
Field center: (RA H:M:S, Dec D:M:S) = (05:32:19.958, +21:54:32.377).
Field size: 15.7636 x 10.5461 degrees
Field rotation angle: up is -1.21832 degrees E of N
Field parity: neg
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep 21 01:40 fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
-rw-r--r-- 1 apache apache 12K Sep 21 01:40 out3794259.wcs
Inserting WCS header (2nd iteration local)... Opening FITS image file fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits for reading... done!
Creating new image file (wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits)... done!
done!
All done!
The WCS header appears to be added with no errors.
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local ' / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local ' / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration02' / astrometry.net run
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Generating wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat from image00004.cat
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits created.
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Image size: 942.2'x626.7' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:20.168 +21:54:35.41 J2000 4789.000 3195.000
### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
### Converted positions of 1187 stars ###
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/correct_sextractor_wcs_catalog_usingxy2sky3794666.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.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=62, bad_region=608, passed=1187
Got 1187 stars (including 540 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat
util/solve_plate_with_UCAC5 got 1187 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 942.2'
Seting catalog search parameters based on the expected field of view 942.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013086 (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 0.010469 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 514 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 505 matched stars entering correct_measured_positions(), 486 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.25"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 505 matched stars entering correct_measured_positions(), 632 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.29"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 587 (Dec 16.5 to 27.2)
Done reading UCAC5 zone files...
Matched 515 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 505 matched stars entering correct_measured_positions(), 633 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.96"
Accuracy estimation diagnostic: 505 matched stars entering correct_measured_positions(), 633 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.90"
Excluding outliers - 505 stars left (next iteration limit 555)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: the 505 catalog matches do not cover the frame (44/127/22/312 per quadrant, need 31 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits N_match=505 sigma_overall_arcsec=1.059 sigma_q1_arcsec=2.379 sigma_q2_arcsec=0.963 sigma_q3_arcsec=2.217 sigma_q4_arcsec=0.969 n_q1=44 n_q2=127 n_q3=22 n_q4=312 worst_quadrant_to_overall_ratio=2.247
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
WCS_QUALITY_RETRY: --tweak-order 2 did NOT improve 2nd new image (fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits): sigma 0.894->1.059, ratio 2.453->2.247; reverting to order 3
WARNING: 1st new image has sigma_overall_arcsec=1.504 -- 3.34x the reference average (0.4505); plate solution may be of low accuracy
WARNING: 2nd new image has sigma_overall_arcsec=1.059 -- 2.35x the reference average (0.4505); plate solution may be of low accuracy
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378_astrometric_residuals.png (4705 matched stars from wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035_astrometric_residuals.png (4708 matched stars from wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.47 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225_astrometric_residuals.png (648 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.87 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226_astrometric_residuals.png (509 matched stars from wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.74 arcsec)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits'
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits'
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
SExtractor catalog cache: saved Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.cat to cache
SExtractor catalog cache: saved Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Creating symlink local_wcs_cache/wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits exists and is non-empty
wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits exists and is non-empty
wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (1st reference image)
verification OK: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Image size: 941.6'x627.1' 15.7(deg)x10.5(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 05:32:19.570 +21:59:57.74 J2000 4789.000 3195.000
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits (1st new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Image size: 941.2'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 05:32:22.184 +21:54:28.26 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:22.184 +21:54:28.26
Angular distance between the image centers 0.0921 deg.
Soft limit: 0.50 deg. Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits (2nd new image)
verification OK: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Image size: 941.1'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 05:32:19.870 +21:54:32.20 J2000 4789.000 3195.000
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 05:32:19.570 +21:59:57.74
Second-epoch image center 05:32:19.870 +21:54:32.20
Angular distance between the image centers 0.0904 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center 05:32:22.184 +21:54:28.26
Second-epoch second image center 05:32:19.870 +21:54:32.20
Angular distance between the image centers 0.00901 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits &> /tmp/tmp.xrMLObTs1O
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits &> /tmp/tmp.axdAWf29D4
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits &> /tmp/tmp.NoLDxCd66a
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits &> /tmp/tmp.dOcdxOxZHH
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
Found non-empty wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits and wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
The reference image (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits) and catalog (wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat) found
'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat' -> 'wcsmag.cat'
Read 167968 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3408 to 91.9478 deg, Dec +16.4791 to +27.2941 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3408 to 91.9478 deg, Dec 16.4791 to 27.2941 deg
Loaded 12414 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7145 out of 10502 total matches.
Matched with Tycho-2 10502 out of 167968 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.825500
a=0.000000 b=1.000000 c=22.825500
From vast_summary.log: estimated ref. image limiting mag.: -7.19
Updating vast_summary.log: Estimated ref. image limiting mag.: 15.64
Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed! =)
Estimated ref. image limiting mag.: 15.64
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 167968 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3408 to 91.9478 deg, Dec +16.4791 to +27.2941 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3408 to 91.9478 deg, Dec 16.4791 to 27.2941 deg
Loaded 12414 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7145 out of 10502 total matches.
Matched with Tycho-2 10502 out of 167968 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (aperture=4.5)
Read 163013 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 74.3370 to 91.9475 deg, Dec +16.4845 to +27.3051 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 74.3370 to 91.9475 deg, Dec 16.4845 to 27.3051 deg
Loaded 12419 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 7184 out of 10475 total matches.
Matched with Tycho-2 10475 out of 163013 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Forced-photometry filter: calibrated wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -> calib.txt_param_ref_wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (aperture=4.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 7 candidate transients before the final filtering. (Hard limit: 10000)
Median FWHM seeing for isolated stars:
1.9 pix Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
1.8 pix Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
2.3 pix fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
2.2 pix fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Limiting magnitude estimates:
15.6 mag. Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
15.6 mag. Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
13.5 mag. fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
13.6 mag. fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
All-image limiting magnitude estimate: 13.5 (SNR ) 12.9 (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.xrMLObTs1O (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits' -> 'wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst)
Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst)
Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst)
Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst)
Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst)
Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst)
Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst)
Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst)
Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=28, blended=21684, bad_region=23036, passed=167940
Got 167940 stars (including 124901 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat
util/solve_plate_with_UCAC5 got 167940 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
catalog_search_parameters->brightest_mag= 1.00
catalog_search_parameters->faintest_mag= 13.50
catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4762 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 4714 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150202 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4763 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150202 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34"
Accuracy estimation diagnostic: 4714 matched stars entering correct_measured_positions(), 150201 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39"
Excluding outliers - 4714 stars left (next iteration limit 5185)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits N_match=4714 sigma_overall_arcsec=0.388 sigma_q1_arcsec=0.472 sigma_q2_arcsec=0.371 sigma_q3_arcsec=0.345 sigma_q4_arcsec=0.297 n_q1=1719 n_q2=437 n_q3=1839 n_q4=719 worst_quadrant_to_overall_ratio=1.214
The image catalog is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits -region wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2025-12-23_01-27-09_20.00sec_-15.00C_LIGHT_0378.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.axdAWf29D4 (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits' -> 'wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS_IMAGE_NAME=wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS-calibrated image found: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
Checking if the catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits alredy exist and is non-empty...
Catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat corresponding to the image wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits
WCS catalog name: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat
Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst)
Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst)
Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst)
Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst)
Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst)
Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst)
Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst)
Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst)
Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=36, blended=20219, bad_region=22244, passed=162977
Got 162977 stars (including 121992 good ones) from the SExtractor catalog wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat
util/solve_plate_with_UCAC5 got 162977 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
catalog_search_parameters->brightest_mag= 1.00
catalog_search_parameters->faintest_mag= 13.50
catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)
ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4760 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4706 matched stars entering correct_measured_positions(), 4706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4706 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44"
ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4760 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4705 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44"
Accuracy estimation diagnostic: 4704 matched stars entering correct_measured_positions(), 145759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49"
Excluding outliers - 4704 stars left (next iteration limit 5176)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits N_match=4704 sigma_overall_arcsec=0.497 sigma_q1_arcsec=0.615 sigma_q2_arcsec=0.464 sigma_q3_arcsec=0.445 sigma_q4_arcsec=0.412 n_q1=1720 n_q2=418 n_q3=1843 n_q4=723 worst_quadrant_to_overall_ratio=1.238
The image catalog is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits -region wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-04-Q2b1x1_2026-02-21_20-27-39_20.00sec_-14.90C_LIGHT_0035.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.NoLDxCd66a (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.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=2, blended=490, bad_region=5168, passed=12727
Got 12727 stars (including 7267 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat
util/solve_plate_with_UCAC5 got 12727 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.2'
Seting catalog search parameters based on the expected field of view 941.2 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013072 (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 0.010458 (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 531 to 587 (Dec 16.4 to 27.2)
Done reading UCAC5 zone files...
Matched 4805 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4720 matched stars entering correct_measured_positions(), 4716 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.98"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4720 matched stars entering correct_measured_positions(), 8407 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.98"
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 531 to 587 (Dec 16.4 to 27.2)
Done reading UCAC5 zone files...
Matched 4805 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4721 matched stars entering correct_measured_positions(), 8407 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.99"
Accuracy estimation diagnostic: 4721 matched stars entering correct_measured_positions(), 8407 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.99"
Excluding outliers - 4721 stars left (next iteration limit 5192)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.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: the 4721 catalog matches do not cover the frame (667/1430/144/2480 per quadrant, need 295 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits N_match=4721 sigma_overall_arcsec=0.982 sigma_q1_arcsec=1.077 sigma_q2_arcsec=0.971 sigma_q3_arcsec=1.559 sigma_q4_arcsec=0.956 n_q1=667 n_q2=1430 n_q3=144 n_q4=2480 worst_quadrant_to_overall_ratio=1.589
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.dOcdxOxZHH (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS_IMAGE_NAME=wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS-calibrated image found: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Checking if the catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat corresponding to the image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
WCS catalog name: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.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=2, blended=448, bad_region=5075, passed=11118
Got 11118 stars (including 5815 good ones) from the SExtractor catalog wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat
util/solve_plate_with_UCAC5 got 11118 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (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 531 to 587 (Dec 16.4 to 27.2)
Done reading UCAC5 zone files...
Matched 4797 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4716 matched stars entering correct_measured_positions(), 4709 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.03"
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4716 matched stars entering correct_measured_positions(), 6963 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.05"
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 531 to 587 (Dec 16.4 to 27.2)
Done reading UCAC5 zone files...
Matched 4797 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4720 matched stars entering correct_measured_positions(), 6963 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.08"
Accuracy estimation diagnostic: 4720 matched stars entering correct_measured_positions(), 6963 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.08"
Excluding outliers - 4720 stars left (next iteration limit 5187)
Stop iterations.
The field is successfully solved and matched with the astrometric catalog! :)
SIP_REFIT: wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.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: the 4720 catalog matches do not cover the frame (367/1431/219/2703 per quadrant, need 295 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits N_match=4720 sigma_overall_arcsec=1.017 sigma_q1_arcsec=1.110 sigma_q2_arcsec=0.981 sigma_q3_arcsec=1.278 sigma_q4_arcsec=1.003 n_q1=367 n_q2=1431 n_q3=219 n_q4=2703 worst_quadrant_to_overall_ratio=1.257
The image catalog is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
You may view it with the command:
ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits -region wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits
Saving fully-calibrated image wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/wcs_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits
Preparing the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
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
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 189046_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 189046_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 12.83 | 05:46:26.63 +25:17:06.5 | 6765 5223 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
**** FOUND 05:46:26.69 +25:17:07.2 in the exclusion list exclusion_list.txt ****
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 189091_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 189091_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 9.95 | 05:50:20.68 +19:49:54.5 | 7319 1924 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
Rejecting candidate due to large distance (35.0") between the two second-epoch detections
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 189579_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 189579_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 12.27 | 05:45:36.94 +25:05:45.3 | 6652 5107 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
**** FOUND 05:45:36.86 +25:05:44.6 in the exclusion list exclusion_list.txt ****
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 190073_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 190073_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 12.71 | 05:48:55.95 +19:12:37.5 | 7119 1546 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
Rejecting candidate due to large distance (34.8") between the two second-epoch detections
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 190114_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 190114_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 13.13 | 05:47:29.24 +18:44:55.9 | 6913 1265 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
**** FOUND 05:47:29.19 +18:44:55.6 in the exclusion list exclusion_list.txt ****
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 190221_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 190221_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 2 | 2026 09 21.27603 | 2461304.77603 | 12.82 | 05:21:59.45 +21:23:19.8 | 3330 2923 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
Rejecting candidate due to large distance (34.6") between the two second-epoch detections
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 23426_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226
The candidate 23426_fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226 did not pass the final checks
| Discovery image 3 | 2026 09 21.27603 | 2461304.77603 | 12.52 | 05:47:47.43 +25:31:52.1 | 6950 5374 | /data_ssd/NMW-TexasTech/workdir//img_2026-09-21_CI_Tau-04-Q2b1x1_013749_TTUQ2b1x1_3755980_LOZbjgVj/fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits |
Rejecting candidate due to large distance (30.3") between the two second-epoch detections
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Tau-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: NOT measuring the monitored positions on the field Tau-04-Q2b1x1 - the transient search raised a processing error: ERROR: large change in astrometric-star counts between the two new images (q1: 78 -> 43, 44.872% > 20%; fd_Tau-04-Q2b1x1_2026-09-21_01-36-37_20.00sec_0.00C_LIGHT_0225.fits vs fd_Tau-04-Q2b1x1_2026-09-21_01-37-18_20.00sec_-0.00C_LIGHT_0226.fits) - possible passing clouds or a bad plate solution; continuing processing
########### Completed Tau-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461304.77554712 -observatory V36
13:00:05.73 -06:59:28.6 Mercury (-0.3mag)
14:04:29.88 -19:01:19.0 Venus (-4.8mag)
07:50:47.02 +21:51:50.6 Mars (1.2mag)
09:20:09.50 +16:09:32.6 Jupiter (-1.8mag)
00:48:10.93 +02:14:10.2 Saturn (0.4mag)
04:13:30.73 +21:01:33.9 Uranus (5.7mag)
00:12:22.25 -00:12:25.1 Neptune (7.7mag)
20:24:46.41 -23:42:11.2 Pluto (14.5mag)
19:44:11.08 -24:48:55.8 Moon (-11.0mag)
-rw-r--r-- 1 apache apache 363 Sep 21 01:40 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461304.77554712:
09:20:15.99 +16:08:59.5 Io (6.0mag)
09:20:09.26 +16:09:35.4 Europa (6.2mag)
09:20:22.90 +16:08:22.6 Ganymede (5.6mag)
09:19:49.13 +16:11:17.4 Callisto (6.8mag)
09:18:33.38 +16:30:40.8 Himalia (15.7mag)
09:20:09.64 +16:09:32.4 Thebe (16.5mag)
09:17:56.74 +16:25:18.2 Elara (17.6mag)
09:23:37.01 +15:33:43.9 Pasiphae (17.9mag)
09:20:13.42 +16:31:12.4 Carme (18.9mag)
00:48:16.24 +02:14:22.7 Titan (8.3mag)
00:48:06.31 +02:13:55.8 Rhea (9.6mag)
00:47:46.95 +02:14:21.6 Iapetus (11.0mag)
00:47:57.86 +02:13:48.0 Hyperion (14.3mag)
00:46:44.30 +02:02:46.3 Phoebe (16.3mag)
-rw-r--r-- 1 apache apache 568 Sep 21 01:40 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461304.77554712:
00:05:06.23 +14:07:24.6 JWST
19:04:57.15 +03:41:10.8 Chandra
11:00:13.52 -59:15:42.6 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 21 01:40 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461304.77554712 -observatory V36
03:46:25.85 +19:52:08.7 17.3mag P/1996 R2 (Lagerkvist)
18:09:35.60 -33:56:20.3 14.5mag P/2010 H2 (Vales)
07:29:14.52 -71:07:01.9 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:41.86 +34:04:32.3 17.7mag C/2017 K2 (PANSTARRS)
05:04:58.41 +47:11:38.5 16.4mag P/2021 N1 (ZTF)
22:03:00.98 +26:50:21.7 17.5mag C/2022 E2 (ATLAS)
07:19:54.41 +25:43:51.0 16.9mag C/2022 N2 (PANSTARRS)
11:02:14.86 +26:46:26.6 17.1mag C/2022 QE78 (ATLAS)
09:57:18.14 +05:09:16.3 18.0mag C/2022 R6 (PANSTARRS)
15:27:17.74 -16:52:04.0 15.0mag C/2023 R1 (PANSTARRS)
08:49:40.94 +33:51:04.0 16.0mag C/2024 E1 (Wierzchos)
15:09:04.68 +15:10:46.7 18.0mag C/2024 G6 (ATLAS)
18:27:16.89 +42:31:57.2 13.7mag C/2024 J3 (ATLAS)
20:08:40.71 +48:17:20.6 17.4mag C/2024 R4 (PANSTARRS)
05:41:54.00 -13:15:14.4 14.9mag C/2024 T5 (ATLAS)
11:41:10.13 +17:39:08.1 16.6mag C/2025 V2 (Rankin)
13:31:42.53 -01:01:58.3 16.7mag C/2025 Y1 (ATLAS)
17:24:25.42 +71:20:36.0 16.5mag C/2026 A2 (Bok)
02:56:26.23 +45:26:04.6 17.6mag C/2026 B2 (Sun-Gao)
12:26:23.76 +12:25:59.0 17.6mag A/2026 E1
22:38:03.65 -34:53:34.2 13.7mag 10P/Tempel
01:41:11.85 +39:12:55.4 17.4mag 11P/Tempel-Swift-LINEAR
11:57:36.83 -06:32:42.2 16.3mag 29P/Schwassmann-Wachmann
12:36:42.50 -09:26:38.0 17.8mag 63P/Wild
07:04:56.60 +18:03:28.8 17.1mag 78P/Gehrels
03:14:45.78 +14:59:12.2 16.8mag 88P/Howell
06:26:10.84 +33:47:36.8 17.2mag 112P/Urata-Niijima
08:11:40.01 +20:52:31.4 17.8mag 114P/Wiseman-Skiff
10:58:37.17 +17:49:25.3 14.8mag 123P/West-Hartley
13:18:09.64 -26:03:39.8 17.6mag 124P/Mrkos
06:33:10.60 +20:08:59.5 15.8mag 128P/Shoemaker-Holt
01:07:28.85 -13:50:55.2 14.3mag 161P/Hartley-IRAS
09:36:08.94 +07:14:40.0 12.7mag 169P/NEAT
03:32:17.10 +07:05:40.8 14.6mag 220P/McNaught
05:23:40.46 +40:22:12.0 15.3mag 260P/McNaught
15:35:07.68 -01:47:41.5 17.9mag 391P/Kowalski
09:39:33.34 +16:08:51.3 17.8mag 450P/LONEOS
-rw-r--r-- 1 apache apache 1.9K Sep 21 01:40 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
16:21:12.24 +57:37:51.30 SN 2026aafh 2026-09-14.11 15.02
23:36:00.27 -19:28:18.00 SN 2026aaks 2026-09-14.44 16.89
16:35:24.86 -05:32:38.20 SN2026aasi 2026-09-12.99 16.58
16:46:08.71 +37:25:21.80 SN2026aafk 2026-09-13.25 17.4
23:48:37.86 +50:25:24.60 SN2026aafs 2026-09-13.47 17
21:20:27.02 +02:10:42.50 SN2026aagh -------
08:02:26.85 -24:37:44.10 ASASSN-26fe 2026-09-13.34 13.67
02:29:34.91 +23:06:56.30 SN2026aars 2026-09-12.27 16.93
02:47:25.52 -32:58:34.50 SN 2026znh 2026-09-9.92 16.26
04:59:14.53 -83:27:58.80 ASASSN-26fd 2026-09-9.11 17.27
17:52:06.79 -23:43:20.70 ASASSN-26fc 2026-09-8.79 12.14
03:52:53.26 -14:19:28.70 SN 2026zfw 2026-09-8 17.78
01:53:26.46 +10:07:25.10 SN2026aacj 2026-09-7.17 16.27
20:04:34.47 +62:38:38.10 SN2026zji 2026-09-7.14 15.87
22:37:05.59 +34:24:35.70 SN2026aaiv 2026-09-7.22 13.48
22:24:21.29 -10:25:31.60 ASASSN-26fb 2026-09-5.3 13.93
00:44:54.28 +41:33:10.50 AT2026aabo 2026-09-3.29 15.02
00:52:12.40 -58:22:08.60 SN 2026zhl 2026-08-31.92 16.51
19:53:57.87 +61:00:19.70 ASASSN-26fa 2026-08-31.18 14.63
00:21:50.96 -09:29:16.30 AT2026zwp 2026-08-31.41 15.59
19:45:06.20 +18:22:48.80 V488 2026-08-30.13 9.37
18:25:12.79 -22:25:29.10 V8055 2026-08-30 10.76
17:17:45.96 +64:31:40.10 ASASSN-26ez 2026-08-25.13 10.87
19:02:47.09 +58:08:21.00 AT2026zwo 2026-08-24.16 15.78
04:20:07.58 -42:26:59.90 AT2026zjy 2026-08-23.03 15.91
03:08:18.02 +11:54:46.50 SN2026ymb 2026-08-23.4 16.44
20:22:32.48 -50:45:14.30 SN2026yid 2026-08-22.82 15.13
04:24:28.39 -56:20:21.60 ASASSN-26ey 2026-08-20.02 15.55
16:46:37.81 -63:14:59.80 ASASSN-26ex 2026-08-18.78 3.63
21:28:47.85 +20:31:03.60 SN 2026sfn 2026-08-16.3 17.09
23:01:28.67 -61:00:39.00 SN 2026yib 2026-08-14.85 17.36
00:22:23.20 -32:16:02.70 SN 2026whu 2026-08-14.96 16.5
19:56:21.71 -37:24:19.90 ASASSN-26ew 2026-08-13.82 14.73
13:53:14.21 +00:26:52.00 SN 2026wkv 2026-08-10.12 15.83
05:21:07.61 +23:38:20.10 TCP J05210763+2338194 2026-08-10.59 9.34
01:28:20.49 +40:13:27.10 SN2026wpd 2026-08-9.34 16.37
23:47:50.89 +49:28:51.30 SN2026wjs 2026-08-9.24 17.09
16:03:20.92 +17:43:23.70 AT2026xau 2026-08-9.3 17.71
01:10:22.05 -09:34:08.50 SN2026weo 2026-08-7.46 15.76
00:56:54.35 -35:55:29.40 AT2026wdy 2026-08-5.05 16.08
22:08:07.63 -53:03:58.90 AT2026wek 2026-08-3.82 17.17
14:51:51.34 +66:13:24.60 ASASSN-26ev 2026-08-2.15 14.02
12:06:50.79 -36:16:06.20 SN2026wgm 2026-08-1.73 15.61
16:56:36.90 -59:29:26.00 ASASSN-26er 2026-07-25.82 15.09
01:21:27.83 -10:37:05.00 SN2026vbh 2026-07-25.61 15.97
21:17:31.59 +22:25:50.90 ASASSN-26eq 2026-07-24.37 15.13
18:53:36.89 +16:56:43.60 ASASSN-26ep 2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50 ASASSN-26et 2026-07-22.76 13.98
13:00:47.82 +15:42:17.60 SN2026uwk 2026-07-21.75 16.38
18:52:31.11 -32:28:00.90 ASASSN-26en 2026-07-21.77 14.63
14:42:58.01 -62:32:59.10 ASASSN-26es 2026-07-20.79 15.36
20:12:45.57 -32:53:13.00 ASASSN-26em 2026-07-20.94 16.83
18:54:24.33 -46:11:51.70 ASASSN-26eu 2026-07-20.93 14.86
03:18:56.99 -80:55:10.40 AT2026ugi 2026-07-20.03 17.12
18:43:58.40 +24:22:41.80 ASASSN-26eo 2026-07-19.36 16.16
04:50:01.03 -02:22:33.80 ASASSN-26ej 2026-07-16.17 17.02
18:34:55.28 -31:41:00.90 ASASSN-26ek 2026-07-16.24 15.73
17:07:43.61 -44:21:53.50 ASASSN-26el 2026-07-15.86 16.01
14:45:08.35 +24:13:12.30 ASASSN-26ei 2026-07-16.17 16.46
10:00:46.44 -32:36:31.10 AT 2023mhb 2026-07-14.73 16.67
14:39:37.45 -11:22:36.20 AT 2026unl 2026-07-15.27 17.11
10:49:42.57 -11:25:55.80 ASASSN-26eh 2026-07-14.72 16.58
19:33:53.06 -07:15:00.80 ASASSN-22le 2026-07-14.15 15.5
02:45:40.52 -27:55:30.30 ASASSN-26ef 2026-07-12.35 15.86
23:26:43.80 +04:42:39.70 SN 2026qtn 2026-07-12.22 16.47
02:19:17.26 +28:57:15.40 ASASSN-26ec 2026-07-11.53 2.78
18:31:15.56 -05:34:31.50 AT2026stb 2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00 AT2026pjf 2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70 SN2026pir 2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30 ASASSN-26ed 2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10 AT2026qil 2026-07-9.3 16.15
20:21:30.50 -32:03:40.10 ASASSN-26ee 2026-07-7.22 15.53
19:37:44.09 -05:35:42.80 AT2026ryu 2026-07-7.17 14.88
11:06:55.46 -04:07:04.50 AT2026qqg 2026-07-5.01 16.82
19:07:23.69 -74:13:37.30 AT2026qly 2026-07-5.02 17.31
17:57:43.80 +27:18:40.10 ASASSN-26ea 2026-07-5.07 16.67
19:59:01.43 -32:07:34.30 ASASSN-26eb 2026-07-4.97 15.52
18:46:50.35 -57:44:13.20 SN 2026qqp 2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90 ASASSN-26dz 2026-07-5.14 15.91
19:14:31.37 +12:03:52.90 AT 2026rdg 2026-07-3.43 11.81
04:05:50.09 -70:24:34.40 AT 2026qpr 2026-06-30.4 15.96
13:45:37.49 -05:59:35.80 SN 2026pub 2026-06-30.09 16.01
16:41:15.63 +39:17:14.70 SN 2026pel 2026-06-26.38 16.07
10:14:40.19 -35:38:21.30 ASASSN-26dy 2026-06-25.99 15.63
14:47:21.56 -40:15:51.30 ASASSN-26dv 2026-06-23.03 14.62
13:38:49.79 -77:21:06.70 ASASSN-26dw 2026-06-23.04 16.09
00:59:27.90 +33:08:13.20 SN 2026mke 2026-06-22.39 17.13
11:10:44.73 -30:20:45.50 SN 2026nmv 2026-06-22.06 16.56
21:36:15.68 -21:19:12.50 AT2026oxh 2026-06-22.15 17.14
17:31:38.38 -56:05:51.90 ASASSN-26dx 2026-06-22.02 14.72
14:10:13.44 -38:46:46.10 AT2026pvk 2026-06-22.06 16.53
20:56:47.23 -18:31:05.20 AT2026plb 2026-06-21.31 16.4
15:44:29.68 +21:00:59.30 SN2026ore 2026-06-21.29 17.57
23:50:05.98 -14:01:41.30 AT2026oxl 2026-06-21.52 17.64
17:36:54.73 -18:10:04.20 AT2026ouj 2026-06-20.92 15.15
00:34:04.08 -30:22:09.20 AT2026ntk 2026-06-18.09 17.34
20:49:13.39 +25:17:59.20 ASASSN-26du 2026-06-15.39 15.93
23:09:30.84 +32:40:42.00 SN2026oxc 2026-06-14.35 16.83
02:02:26.78 +32:04:21.30 AT2026ovz 2026-06-14.59 15.39
21:26:28.11 -72:31:19.50 AT2026nwc 2026-06-11 17.05
-rw-r--r-- 1 apache apache 5.7K Sep 21 01:40 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:41:24.04 +40:49:02.8 PNV J00412404+4049028 2026-07-25.0157 18.7mag
00:43:04.26 +41:02:28.6 PNV J00430426+4102286 2026-07-26.1512 20mag
14:51:51.40 +66:13:24.0 TCP J14515140+6613240 2026-07-29.2561 13.5mag
00:43:06.15 +41:22:08.2 PNV J00430615+4122082 2026-07-30.0085 19.4mag
00:41:33.23 +41:10:12.2 PNV J00413323+4110122 2026-08-02.8913 17.1mag
05:21:07.63 +23:38:19.4 TCP J05210763+2338194 2026-08-06.4109 11.2mag
22:57:17.96 +47:07:41.8 TCP J22571796+4707418 2026-08-09.3289 14.3mag
09:13:38.17 +76:28:18.1 PSN J09133817+7628181 2026-08-09.8037 15.4mag
00:43:17.29 +41:26:48.6 PNV J00431729+4126486 2026-08-14.0920 16.8mag
00:42:52.82 +41:10:58.6 PNV J00425282+4110586 2026-08-17.7723 19.9mag
00:42:52.83 +41:10:59.6 PNV J00425283+4110596 2026-08-18.6119 19.3mag
18:25:12.76 -22:25:29.3 TCP J18251276-2225293 2026-08-19.1062 9.4mag
18:03:09.04 +12:18:14.0 TCP J18030904+1218140 2026-08-19.5199 14.9mag
19:45:06.48 +18:22:42.2 PNV J19450648+1822422 2026-08-25.1278 9.0mag
00:42:54.65 +41:22:59.3 PNV J00425465+4122593 2026-08-25.4712 18.9mag
00:42:50.38 +41:18:58.76 PNV J00425038+4118587 2026-09-04.1512 18.2mag
00:42:12.76 +41:16:28.4 PNV J00421276+4116284 2026-09-10.9176 18.67Cmag
17:52:06.80 -23:43:20.7 TCP J17520680-2343207 2026-09-08.7896 12.6mag
00:42:40.94 +41:15:37.1 PNV J00424094+4115371 2026-09-17.8925 18.3mag
08:49:20.13 -09:19:15.8 TCP J08492013-0919158 2026-09-18.4698 13.3mag
-rw-r--r-- 1 apache apache 190K Sep 21 01:40 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
18:37:01.440 +34:07:08.01 AT 2026aaid 2026-08-29.73 20.3
18:20:42.240 +36:32:22.01 AT 2026aaic 2026-08-29.73 20.25
18:22:14.640 +40:00:51.94 AT 2026aaib 2026-08-29.73 20.32
18:27:15.460 +42:18:52.04 AT 2026aaia 2026-08-29.72 20.64
18:21:59.150 +41:20:47.10 AT 2026aahz 2026-08-29.72 21.17
00:25:39.480 +42:47:23.08 AT 2026aahy 2026-08-26.72 20.4
01:04:53.450 +39:52:15.46 AT 2026aahx 2026-08-20.72 20.84
00:44:00.810 +43:14:46.59 AT 2026aahw 2026-08-20.72 21.08
22:51:34.110 +15:44:03.01 AT 2026aahv 2026-08-20.71 21.05
21:59:13.640 +10:22:20.47 AT 2026aahu 2026-08-19.62 21.45
22:12:02.290 +18:37:03.36 AT 2026aaht 2026-08-19.61 21.65
21:53:47.780 +17:31:23.29 AT 2026aahs 2026-08-19.61 20.93
22:21:10.910 +25:13:03.64 AT 2026aahr 2026-08-19.60 20.95
23:09:04.550 +23:33:02.89 AT 2026aahq 2026-08-18.73 21.24
23:54:21.700 +42:26:44.49 AT 2026aahp 2026-08-18.73 20.9
23:16:00.720 +40:22:41.13 AT 2026aaho 2026-08-18.72 20.65
17:32:19.490 +27:38:27.97 AT 2026aahn 2026-08-17.71 21.76
17:11:45.550 +22:13:10.66 AT 2026aahm 2026-08-17.71 21.23
17:07:03.110 +22:46:10.65 AT 2026aahl 2026-08-16.63 21.63
17:32:14.940 +21:27:26.95 AT 2026aahk 2026-08-16.63 21.52
-rw-r--r-- 1 apache apache 89K Sep 21 01:40 tns_transients_list.txt