FITS images used in this processing run:

Field Aur-05-Q2b1x1 reference image: Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Field Aur-05-Q2b1x1 reference image: Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
Field Aur-05-Q2b1x1 second-epoch image: Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
Field Aur-05-Q2b1x1 second-epoch image: Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits

***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################

######## 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: 
Aur-05-Q2b1x1
#######################################
########### Starting Aur-05-Q2b1x1 ###########
Processing Aur-05-Q2b1x1
server tau has sufficient free disk space available: 433270 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 433270 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.png' -> 'transient_report/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits_preview.png'

Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits


renamed 'Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.png' -> 'transient_report/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits_preview.png'

Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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= 565.0960
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 645.3049
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 2137.4155
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 318.1842
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 2176.6937
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 336.6443
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.78239
INFO:                  SECOND_EPOCH__SD_ratio= 0.055
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 =     17.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 16.2 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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= '2026-10-04T04:09:33.8003441' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-04T09:09:33.8003441' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61317.3816412035 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-04T09:09:43.7043171' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61317.3817558335 / 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      =     75.2099652237527 / [deg] RA of telescope" status=0
Record 32: "DEC     =     30.1132819026106 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     66.8369444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     91.4808333333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.08740763916904 / 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  = 'Aur-05'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+30 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  =                20651 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20651 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     17.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     17.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 91.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               907.89 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 16.2 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                344.0 / [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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/d_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits :)

Spent 0.472632 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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/d_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     17.3099994659424 / [degC] Focuser temperature
AMBTEMP =                 16.2 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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= '2026-10-04T04:12:23.8333052' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-04T09:12:23.8333052' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =      61317.383609178 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-04T09:12:33.7374171' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61317.383723808 / 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      =     75.5136270225235 / [deg] RA of telescope" status=0
Record 32: "DEC     =      30.234343964412 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     67.2072222222222 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     91.4302777777778 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.08443864336146 / 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  = 'Aur-05'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '05 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+30 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  =                20651 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20651 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     17.3099994659424 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     17.3099994659424 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 91.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               907.99 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 16.2 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                344.0 / [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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/d_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits :)

Spent 0.472276 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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/d_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
Previews of the CALIBRATED second-epoch images:


fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits



fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.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/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
  
Last  image: 2461317.88175694 04.10.2026 09:09:33.800 UTC
WARNING: VaST exited with code 1 on the field Aur-05-Q2b1x1 as too few input images were matched to the reference image - wrong pointing? clouds? very bad focus?
Blind plate solve of the unmatched second-epoch image fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.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_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
WCS_IMAGE_NAME=wcs_fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits was not set. Trying to guess...
The guess is  605 arcmin.
No image with WCS calibration found for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits .... Determining astrometry method...
Using the local copy of Astrometry.net software...
Choosing aperture...
Image stats for fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits  median=1651.000000 sigma=90.438735 threshold=1017.928853
number_of_zeroes = 0 (0.0000%)  number_of_negatives = 0 (0.0000%)
Flag and weight images will NOT be created for /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The value of saturation limit (SATUR_LEVEL=55000.0) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The above guess is based on the non-default saturation level specified in default.sex by user
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits > image00003.cat.sex_log 2>&1

WARNING: the estimated aperture is unrealistically small: 0.0<1.0 pix (determined from 0 stars).
This may happen if all stars are flagged as bad ones by SExtractor.
Check SExtractor settings in default.sex, especially that SATUR_LEVEL is not too low.

[/data_ssd/NMW-TexasTech/workdir/vast_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/lib/make_outxyls_for_astrometric_calibration] ERROR: cannot open image00003.cat
ERROR running /data_ssd/NMW-TexasTech/workdir/vast_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/lib/make_outxyls_for_astrometric_calibration!
The blind plate solve of the second-epoch image failed - cannot check the telescope pointing (clouds? very bad focus?)
____ VaST output ____

--==VaST 1.0rc90==--

Parsing command line arguments...
opt 'F': Will NOT create flag images for SExtractor
opt '5': 5.000000 pix is the new fixed star matching radius!
opt 'b': Using 500 reference stars for image matching!
opt '3': Will try to select best aperture for each source!
opt 'y': 0 SysRem iterations will be conducted!
opt 't 4': robust linear magnitude calibration (vary zero-point and slope)
opt 'x': 99 is the maximum acceptable SExtractor flag!
WARNING: disabling the mag-size filter in order not to reject blended stars.
opt 'u': Stick with UTC time system, no conversion to TT will be done!
opt 'f': Run ./find_candidates manually!
opt 'k': "JD" keyword in FITS image header will be ignored!
INFO from vast_remove_directory(): Could not open directory: symlinks_to_images
INFO from vast_remove_directory(): Could not open directory: converted_images
INFO from vast_remove_directory(): Could not open directory: unpacked_images

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits is already a symlink and we do not allow symlinks on symlinks
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits is already a symlink and we do not allow symlinks on symlinks

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu)...  OK
Found a system-wide installation of SExtractor
Cleaning old outNNNNN.dat files.
Done with cleaning!

 VaST was started with the following command line: 
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits 


Preparing to process 4 input FITS images...


######## Forcing special settings for the transient detection ########
transient search mode: disabling the mag-size filter as it should be switched off when running a transient search!
transient search mode: disabling the bad image filter as it will not help during the transient search!
transient search mode: will not try to gues image saturation limit
transient search mode: no UTC-to-TT time system conversion will be performed!!!
transient search mode: setting the maximum acceptable SExtractor flag to 3
transient search mode: disabling rejectin of images with elliptical stars
transient search mode: not discarding large sources
################
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).
Setting the fixed star match radius of 5.00 pix
We have 4 images to process.
SExtractor catalog cache: restored Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits catalog from cache
SExtractor catalog cache: restored Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits catalog from cache
Running SExtractor in 3 parallel threads...
Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The above guess is based on the non-default gain value specified in default.sex by user
Parent process says: we are done fork()ing.
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1Waiting for thread 2 to finish...
_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits > image00003.cat.sex_log 2>&1
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits > image00004.cat.sex_log 2>&1

WARNING: the estimated aperture is unrealistically small: 0.0<1.0 pix (determined from 0 stars).
This may happen if all stars are flagged as bad ones by SExtractor.
Check SExtractor settings in default.sex, especially that SATUR_LEVEL is not too low.

Waiting for thread 1 to finish...

WARNING: the estimated aperture is unrealistically small: 0.0<1.0 pix (determined from 0 stars).
This may happen if all stars are flagged as bad ones by SExtractor.
Check SExtractor settings in default.sex, especially that SATUR_LEVEL is not too low.



Done with SExtractor!

TIMING SExtractor: 1 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2025-12-23T07:12:32.6112693
Setting observation time using DATE-OBS keyword: 2025-12-23T07:12:32.6112693

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2025-12-23T07:12:32.611
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Exposure 20 sec, 23.12.2025 07:12:32.611 UTC = JD(UTC) 2461032.80049318 mid. exp.
The reference image star  8250.411    16.025 is rejected, see bad_region.lst
The reference image star  7559.419    10.351 is rejected, see bad_region.lst
The reference image star  7931.446    12.740 is rejected, see bad_region.lst
The reference image star  9311.439    12.312 is rejected, see bad_region.lst
The reference image star  9181.246     7.194 is rejected, see bad_region.lst
The reference image star  9544.774     1.743 is rejected, see bad_region.lst
The reference image star  9075.365     1.725 is rejected, see bad_region.lst
The reference image star  9006.855    22.141 is rejected, see bad_region.lst
The reference image star  9568.301    22.953 is rejected, see bad_region.lst
The reference image star  8825.382    20.652 is rejected, see bad_region.lst
Excluding more reference image stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 13555, (13555 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 2650
 * rejected close to frame edge: 83
 * rejected as being too small (<1.5 pix): 0
 * rejected as being too large (>6.0 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 7
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.35
Detection limit from the magnitude-SNR relation= -7.3  (4.0 sigma detection)
The simple faintest star detection limit= -9.7
80 percent brightest stars detection limit= -10.5
Selected detection limit= -10.5
Final detection limit= -10.5 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.06.0 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 7
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    13611 * detected, using  502/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.015576, number_of_ambiguous_matches=212 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=12666 inliers=12666 rms 0.36 -> 0.35 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.008302, number_of_ambiguous_matches=113 
12660 * matched, [CVPOLY iter 2: order=2 pairs=12660 inliers=12660 rms 0.21 -> 0.20 pix, max corner correction 0.3 pix] fraction_of_ambiguous_matches= 0.004996, number_of_ambiguous_matches=68 
12658 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=12658 inliers=12658 rms 0.14 -> 0.14 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.002057, number_of_ambiguous_matches=28 
12655 * matched (3rd iteration). Success!
  rotation [degrees] =   0.006
    13611 stars detected, 12655 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 11301, N_manually_selected_comparison_stars = 0
Using 11301 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 11301 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00000*X_pix +0.00000*Y_pix -0.00049
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 11300 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.35
    14511 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  204440 kB used, 239316 kB peak, 65261712 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-10-04T09:09:33.8003441
Setting observation time using DATE-OBS keyword: 2026-10-04T09:09:33.8003441

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-04T09:09:33.800
EXPTIME = 20.000

The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits > image00003.cat.sex_log 2>&1

WARNING: the estimated aperture is unrealistically small: 0.0<1.0 pix (determined from 0 stars).
This may happen if all stars are flagged as bad ones by SExtractor.
Check SExtractor settings in default.sex, especially that SATUR_LEVEL is not too low.

ERROR! APERTURE 0.0 is outside the expected range of 1.0 to  95.0
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-10-04T09:12:23.8333052
Setting observation time using DATE-OBS keyword: 2026-10-04T09:12:23.8333052

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-04T09:12:23.833
EXPTIME = 20.000

The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits > image00004.cat.sex_log 2>&1

WARNING: the estimated aperture is unrealistically small: 0.0<1.0 pix (determined from 0 stars).
This may happen if all stars are flagged as bad ones by SExtractor.
Check SExtractor settings in default.sex, especially that SATUR_LEVEL is not too low.

ERROR! APERTURE 0.0 is outside the expected range of 1.0 to  95.0
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 1 seconds
Done with measurements! =)

Total number of measurements 27166 (27166 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 1 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  3112 stars
Aperture with index 1 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for     0 stars
Aperture with index 2 (REFERENCE_APERTURE_DIAMETER -0.10*REFERENCE_APERTURE_DIAMETER) seems best for  3652 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  1917 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  1604 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  2370 stars

done!  =)
TIMING select_aperture: 0 seconds
WARNING: Can't open candidates-transients.lst for reading! -- No candidates found?
Non-zero exit code of lib/transient_list
ERROR running  lib/create_list_of_candidate_transients.sh
Computing lightcurve statistics...  Will not compute variability indexes for objects having <1 points in lightcurve
You may disable this by commenting out the line '#define DROP_LIGHTCURVES_WITH_SMALL_NUMBER_OF_POINTS_FROM_ALL_PLOTS' in src/vast_limits.h an re-compiling VaST with 'make'

Computing, please wait a bit
.............................................................................................................................
vast_lightcurve_statistics.log: 12520 objects, the longest string is 384 bytes.
Allocating memory for resorting the file.



----***** VaST processing WARNING *****----
You asked VaST to process 4 images, but only 1 were actually matched to the reference one.
Please investigate this!



**************************************************************
This error might be a bug, but it is far more likely that it is caused by 
inappropriate input data. A few simple things to check in the diagnostic
messages printed above (or the vast*.log files):
 * How many of the input images are matched?
 * Does the number of detected stars on each image look reasonable?
 * Do images have a sufficient overlap of at least about 20 percent?

You may run
 ./sextract_single_image /path/to/my/image/file.fit
to see how well VaST detects stars with the current SExtractor settings
(star detection settings can be changed in the default.sex configuration
file, see various examples in the VaST directory).

If you cannot identify the problem, please e-mail Kirill Sokolovsky 
Please try to describe the problem in details and, if possible, attach vast_summary.log
file and a few example images. If the images are too big to be sent by e-mail, please 
upload them through a web-form http://scan.sai.msu.ru/upload/
**************************************************************

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field Aur-05-Q2b1x1 (less than 4 images processed)
exp_start= 23.12.2025 07:12:32.611  exp=   20.000  JD= 2461032.80049318  ap=  6.0  rotation=   0.000  *detected= 13555  *matched= 13555  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
exp_start= 23.12.2025 07:13:14.156  exp=   20.000  JD= 2461032.80097403  ap=  6.0  rotation=   0.006  *detected= 13611  *matched= 12655  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
exp_start= 04.10.2026 09:09:33.800  exp=   20.000  JD= 2461317.88175694  ap=  0.0  rotation=   0.000  *detected=     0  *matched=     0  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
exp_start= 04.10.2026 09:12:23.833  exp=   20.000  JD= 2461317.88372492  ap=  0.0  rotation=   0.000  *detected=     0  *matched=     0  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
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/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
  
Last  image: 2461317.88175694 04.10.2026 09:09:33.800 UTC
WARNING: VaST exited with code 1 on the field Aur-05-Q2b1x1 as too few input images were matched to the reference image - wrong pointing? clouds? very bad focus?
____ VaST output ____

--==VaST 1.0rc90==--

Parsing command line arguments...
opt 'F': Will NOT create flag images for SExtractor
opt '5': 5.000000 pix is the new fixed star matching radius!
opt 'b': Using 500 reference stars for image matching!
opt '3': Will try to select best aperture for each source!
opt 'y': 0 SysRem iterations will be conducted!
opt 't 4': robust linear magnitude calibration (vary zero-point and slope)
opt 'x': 99 is the maximum acceptable SExtractor flag!
WARNING: disabling the mag-size filter in order not to reject blended stars.
opt 'u': Stick with UTC time system, no conversion to TT will be done!
opt 'f': Run ./find_candidates manually!
opt 'k': "JD" keyword in FITS image header will be ignored!
INFO from vast_remove_directory(): Could not open directory: symlinks_to_images
INFO from vast_remove_directory(): Could not open directory: converted_images
INFO from vast_remove_directory(): Could not open directory: unpacked_images

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits is already a symlink and we do not allow symlinks on symlinks
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits is already a symlink and we do not allow symlinks on symlinks

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu)...  OK
Found a system-wide installation of SExtractor
Cleaning old outNNNNN.dat files.
Done with cleaning!

 VaST was started with the following command line: 
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits 


Preparing to process 4 input FITS images...


######## Forcing special settings for the transient detection ########
transient search mode: disabling the mag-size filter as it should be switched off when running a transient search!
transient search mode: disabling the bad image filter as it will not help during the transient search!
transient search mode: will not try to gues image saturation limit
transient search mode: no UTC-to-TT time system conversion will be performed!!!
transient search mode: setting the maximum acceptable SExtractor flag to 3
transient search mode: disabling rejectin of images with elliptical stars
transient search mode: not discarding large sources
################
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).
Setting the fixed star match radius of 5.00 pix
We have 4 images to process.
SExtractor catalog cache: restored Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits catalog from cache
SExtractor catalog cache: restored Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits catalog from cache
Running SExtractor in 3 parallel threads...
Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The above guess is based on the non-default gain value specified in default.sex by user
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 3.0,3.0,2.7,3.3,3.7,4.0 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 3.0,3.0,2.7,3.3,3.6,3.9 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits


Done with SExtractor!

TIMING SExtractor: 2 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2025-12-23T07:12:32.6112693
Setting observation time using DATE-OBS keyword: 2025-12-23T07:12:32.6112693

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2025-12-23T07:12:32.611
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
Exposure 20 sec, 23.12.2025 07:12:32.611 UTC = JD(UTC) 2461032.80049318 mid. exp.
The reference image star  8534.683    35.632 is rejected, see bad_region.lst
The reference image star  8705.051    33.956 is rejected, see bad_region.lst
The reference image star  8112.278    28.762 is rejected, see bad_region.lst
The reference image star  8487.260    24.769 is rejected, see bad_region.lst
The reference image star  8250.411    16.026 is rejected, see bad_region.lst
The reference image star  8790.655    17.008 is rejected, see bad_region.lst
The reference image star  7559.414    10.357 is rejected, see bad_region.lst
The reference image star  7931.446    12.740 is rejected, see bad_region.lst
The reference image star  9311.436    12.313 is rejected, see bad_region.lst
The reference image star  9133.783    11.422 is rejected, see bad_region.lst
Excluding more reference image stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 111165, (111164 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 36
 * rejected inside rectangles defined in bad_region.lst: 17095
 * rejected close to frame edge: 540
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.5 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 167
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.02
Detection limit from the magnitude-SNR relation= -7.0  (4.0 sigma detection)
The simple faintest star detection limit= -6.6
80 percent brightest stars detection limit= -7.7
Selected detection limit= -7.7
Final detection limit= -7.7 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.5 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 154
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    111234 * detected, using  500/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.020920, number_of_ambiguous_matches=2327 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=100680 inliers=100680 rms 0.35 -> 0.35 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.020947, number_of_ambiguous_matches=2330 
100682 * matched, [CVPOLY iter 2: order=1 pairs=100682 inliers=100682 rms 0.35 -> 0.35 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.020947, number_of_ambiguous_matches=2330 
100682 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=100682 inliers=100682 rms 0.35 -> 0.35 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.014816, number_of_ambiguous_matches=1648 
100598 * matched (3rd iteration). Success!
  rotation [degrees] =   0.006
    111234 stars detected, 100598 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 87056, N_manually_selected_comparison_stars = 0
Using 87056 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 87052 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00000*Y_pix -0.00176
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 82957 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.02
    121801 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  290620 kB used, 324180 kB peak, 65261712 kB available RAM
Total number of measurements 222399 (222399 measurements stored in RAM)
sorting the measurements cached in memory,
writing lightcurve (outNNNNN.dat) files...
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-10-04T09:09:33.8003441
Setting observation time using DATE-OBS keyword: 2026-10-04T09:09:33.8003441

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-04T09:09:33.800
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
The star  8919.997    55.034 is rejected, see bad_region.lst
The star  9343.002   217.985 is rejected, see bad_region.lst
The star  8889.027   243.011 is rejected, see bad_region.lst
The star  8016.981   247.002 is rejected, see bad_region.lst
The star  8406.996   368.006 is rejected, see bad_region.lst
The star  8899.037   400.031 is rejected, see bad_region.lst
The star  8899.999   509.995 is rejected, see bad_region.lst
The star  8363.101   772.913 is rejected, see bad_region.lst
The star  8326.996   788.985 is rejected, see bad_region.lst
The star  9235.248   799.000 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 136
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 67
 * rejected close to frame edge: 0
 * rejected as being too small (<0.8 pix): 0
 * rejected as being too large (>3.0 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 0
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
      136 * detected, using  100/ 136 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
the annealed match radius failed on this field, retrying with the strict radius... fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
Too few * matched: 23 < 27 ! Retrying...
  rotation [degrees] = -46.590
      136 stars detected,    23 stars matched
ERROR! Too few stars matched (23 < 27) . Wrong match? Skipping file...



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-10-04T09:12:23.8333052
Setting observation time using DATE-OBS keyword: 2026-10-04T09:12:23.8333052

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-04T09:12:23.833
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
The star  8919.994    54.977 is rejected, see bad_region.lst
The star  9343.005   217.992 is rejected, see bad_region.lst
The star  8889.040   242.993 is rejected, see bad_region.lst
The star  8016.988   246.963 is rejected, see bad_region.lst
The star  8406.996   367.983 is rejected, see bad_region.lst
The star  8899.000   399.990 is rejected, see bad_region.lst
The star  8900.003   509.995 is rejected, see bad_region.lst
The star  8326.989   788.997 is rejected, see bad_region.lst
The star  9559.994   827.984 is rejected, see bad_region.lst
The star  8869.023  1093.175 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 131
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 60
 * rejected close to frame edge: 0
 * rejected as being too small (<0.8 pix): 0
 * rejected as being too large (>3.0 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 0
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
      131 * detected, using  100/ 131 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
the annealed match radius failed on this field, retrying with the strict radius... fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
Too few * matched: 14 < 26 ! Retrying...
  rotation [degrees] = 110.415
      131 stars detected,    14 stars matched
ERROR! Too few stars matched (14 < 26) . Wrong match? Skipping file...
TIMING matching_and_photometry: 2 seconds
Done with measurements! =)

Total number of measurements 222399 (0 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 1 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for 20307 stars
Aperture with index 1 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for     0 stars
Aperture with index 2 (REFERENCE_APERTURE_DIAMETER -0.10*REFERENCE_APERTURE_DIAMETER) seems best for 27639 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for 12905 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for 13651 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for 26096 stars

done!  =)
TIMING select_aperture: 3 seconds
WARNING: Can't open candidates-transients.lst for reading! -- No candidates found?
Non-zero exit code of lib/transient_list
ERROR running  lib/create_list_of_candidate_transients.sh
Computing lightcurve statistics...  Will not compute variability indexes for objects having <1 points in lightcurve
You may disable this by commenting out the line '#define DROP_LIGHTCURVES_WITH_SMALL_NUMBER_OF_POINTS_FROM_ALL_PLOTS' in src/vast_limits.h an re-compiling VaST with 'make'

Computing, please wait a bit
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
vast_lightcurve_statistics.log: 100164 objects, the longest string is 385 bytes.
Allocating memory for resorting the file.



----***** VaST processing WARNING *****----
You asked VaST to process 4 images, but only 1 were actually matched to the reference one.
Please investigate this!



**************************************************************
This error might be a bug, but it is far more likely that it is caused by 
inappropriate input data. A few simple things to check in the diagnostic
messages printed above (or the vast*.log files):
 * How many of the input images are matched?
 * Does the number of detected stars on each image look reasonable?
 * Do images have a sufficient overlap of at least about 20 percent?

You may run
 ./sextract_single_image /path/to/my/image/file.fit
to see how well VaST detects stars with the current SExtractor settings
(star detection settings can be changed in the default.sex configuration
file, see various examples in the VaST directory).

If you cannot identify the problem, please e-mail Kirill Sokolovsky 
Please try to describe the problem in details and, if possible, attach vast_summary.log
file and a few example images. If the images are too big to be sent by e-mail, please 
upload them through a web-form http://scan.sai.msu.ru/upload/
**************************************************************

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field Aur-05-Q2b1x1 (less than 4 images processed)
exp_start= 23.12.2025 07:12:32.611  exp=   20.000  JD= 2461032.80049318  ap=  4.5  rotation=   0.000  *detected= 111165  *matched= 111165  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-12-32_20.00sec_-15.00C_LIGHT_0362.fits
exp_start= 23.12.2025 07:13:14.156  exp=   20.000  JD= 2461032.80097403  ap=  4.5  rotation=   0.006  *detected= 111234  *matched= 100598  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aur-05-Q2b1x1_2025-12-23_01-13-14_20.00sec_-14.90C_LIGHT_0363.fits
exp_start= 04.10.2026 09:09:33.800  exp=   20.000  JD= 2461317.88175694  ap=  3.0  rotation= -46.590  *detected=   136  *matched=    23  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-09-33_20.00sec_-0.00C_LIGHT_0125.fits
exp_start= 04.10.2026 09:12:23.833  exp=   20.000  JD= 2461317.88372492  ap=  3.0  rotation= 110.415  *detected=   131  *matched=    14  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-04_CI_Aur-05-Q2b1x1_041300_TTUQ2b1x1_461896_0M7cbKPu/fd_Aur-05-Q2b1x1_2026-10-04_04-12-23_20.00sec_-0.00C_LIGHT_0126.fits
########### Completed Aur-05-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
############################################################
ls: cannot access 'planets.txt': No such file or directory
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT):
ls: cannot access 'moons.txt': No such file or directory
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT):
ls: cannot access 'spacecraft.txt': No such file or directory
############################################################
ls: cannot access 'comets.txt': No such file or directory
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
ls: cannot access 'asassn_transients_list.txt': No such file or directory
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
ls: cannot access 'tocp_transients_list.txt': No such file or directory

=== Transient Factory Profiling ===
Started: Sun Oct  4 04:13:56 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 2 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 3 seconds
FIELD_Aur-05-Q2b1x1: 41s (0.68 min)
=======================================
TOTAL_RUNTIME: 58s (0.97 min)
Finished: Sun Oct  4 04:14:54 CDT 2026