FITS images used in this processing run:

Field Sct-01-Q2b1x1 reference image: Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
Field Sct-01-Q2b1x1 reference image: Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
Field Sct-01-Q2b1x1 second-epoch image: Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Field Sct-01-Q2b1x1 second-epoch image: Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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: 
Sct-01-Q2b1x1
#######################################
########### Starting Sct-01-Q2b1x1 ###########
Processing Sct-01-Q2b1x1
server tau has sufficient free disk space available: 526864 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 526864 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.png' -> 'transient_report/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits_preview.png'

Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits


renamed 'Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.png' -> 'transient_report/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits_preview.png'

Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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= 1116.4388
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 616.7814
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 2776.0234
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 930.7302
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 2664.0721
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 874.9830
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.4865
INFO:                  SECOND_EPOCH__SD_ratio= 0.064
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 =     6.53000020980835 / [degC] Focuser temperature
AMBTEMP =                  6.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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= '2026-10-16T22:18:58.1611525' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-17T03:18:58.1611525' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61330.1381731597 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-17T03:19:08.0614776' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61330.1382877431 / 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      =     282.855083842798 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -9.99950998952905 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     25.2836111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     236.921111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.33124033671993 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / 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  = 'Sct-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '18 51 26'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-10 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  =                20662 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20662 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     6.53000020980835 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     6.53000020980835 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  1.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                919.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  6.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                208.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/d_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits :)

Spent 0.528076 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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/d_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     6.51000022888184 / [degC] Focuser temperature
AMBTEMP =                  6.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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= '2026-10-16T22:19:41.5274534' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-17T03:19:41.5274534' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61330.1386750811 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-17T03:19:51.4292734' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61330.1387896873 / 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      =     282.855083864429 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -9.99950998594713 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     25.1552777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =             237.0625 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.34223097936633 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / 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  = 'Sct-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '18 51 26'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-10 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  =                20662 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20662 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     6.51000022888184 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     6.51000022888184 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  1.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                919.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  6.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                208.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/d_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits :)

Spent 0.517979 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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/d_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
Previews of the CALIBRATED second-epoch images:


fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits



fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
  
Last  image: 2461330.63828890 17.10.2026 03:18:58.161 UTC
WARNING: VaST exited with code 1 on the field Sct-01-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_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
WCS_IMAGE_NAME=wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/lib/make_outxyls_for_astrometric_calibration found 5641 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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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: "out2108663.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out2108663.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).
  log-odds ratio 30.0693 (1.1453e+13), 10 match, 0 conflict, 42 distractors, 26 index.
  RA,Dec = (282.851,-9.99651), pixel scale 5.94664 arcsec/pix.
  Hit/miss:   Hit/miss: --+-+---------------+--------+---+-+---+-+---+-----+(best)---------------+--------------------------------
Field 1: solved with index index-4116.fits.
Field 1 solved: writing to file ./out2108663.solved to indicate this.
Field: out2108663.xyls
Field center: (RA,Dec) = (282.856018, -10.001209) deg.
Field center: (RA H:M:S, Dec D:M:S) = (18:51:25.444, -10:00:04.351).
Field size: 15.735 x 10.5339 degrees
Field rotation angle: up is 179.706 degrees E of N
Field parity: neg

WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
Opening FITS image file input.fits for reading...  done!
Creating new image file (wcs_input.fits)...  done!
done!
All done!
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: "out2108663.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out2108663.axy"...
Only searching for solutions within 15.665 degrees of RA,Dec (282.855,-10.002)
  log-odds ratio 30.0693 (1.1453e+13), 10 match, 0 conflict, 42 distractors, 26 index.
  RA,Dec = (282.851,-9.99651), pixel scale 5.94664 arcsec/pix.
  Hit/miss:   Hit/miss: --+-+---------------+--------+---+-+---+-+---+-----+(best)---------------+--------------------------------
Field 1: solved with index index-4116.fits.
Field 1 solved: writing to file ./out2108663.solved to indicate this.
Field: out2108663.xyls
Field center: (RA,Dec) = (282.858156, -10.001785) deg.
Field center: (RA H:M:S, Dec D:M:S) = (18:51:25.957, -10:00:06.424).
Field size: 15.7139 x 10.533 degrees
Field rotation angle: up is 179.704 degrees E of N
Field parity: neg

WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
Opening FITS image file input.fits for reading...  done!
Creating new image file (wcs_input.fits)...  done!
done!
All done!
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
The field of view is large: we'll try to run Astromety.net code on the image itself rather than a star list
Reading input file "wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits"...
Found an existing WCS header, will try to verify it.
Extracting sources...
simplexy: found 47068 sources.
Solving...
Reading file "/data_ssd/NMW-TexasTech/workdir/vast_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/out2108663_image_verify.QWOEgU/solution.axy"...
Verifying WCS using indices with quads of size [63.4884, 951.729] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 110.465 (9.42645e+47), 14 match, 0 conflict, 227 distractors, 14 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ------------+-+--------+----+---++-----------+----+-----+------------------------+-----------------+
 --> log-odds 110.465
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 226.814 (3.19076e+98), 25 match, 0 conflict, 272 distractors, 25 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ----+------++-+--------+----+---++-----------+----+---+-+----------------+----+--+-----------------+
 --> log-odds 226.814
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 565.166 (2.80769e+245), 54 match, 0 conflict, 243 distractors, 55 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: -++-+---+++++-+-+------+-+--++--+++--+-++-+-++-+-+++--+-++---+--+--------+----+--++---+---++-----+-+
 --> log-odds 565.166
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 934.584 (inf), 91 match, 0 conflict, 206 distractors, 92 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: -++++-+++++++++++---+--+-+--++-+++++-+-++-+-++-+-++++-++++--++-++--------+-+--+--++---+---++++--++-+
 --> log-odds 934.584
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1879.64 (inf), 192 match, 1 conflict, 409 distractors, 195 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++--+-+-+++-++++++++++++++++++++++++++++-+++++-++++++-+-++++++++---+++++++++-++-+
 --> log-odds 1879.64
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3300.8 (inf), 367 match, 0 conflict, 1129 distractors, 378 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++-++++-+++-++++++++++++++++++++++++++++++++++-++++++++-++++++++-+-++++++++++++-+
 --> log-odds 3300.8
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 5921.33 (inf), 707 match, 0 conflict, 2293 distractors, 726 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++-++++++++-++++++++++++++++
 --> log-odds 5921.33
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 10661 (inf), 1391 match, 0 conflict, 7045 distractors, 1432 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++-++++++++++++++++
 --> log-odds 10661
Verifying WCS using indices with quads of size [63.4884, 951.729] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 110.465 (9.42645e+47), 14 match, 0 conflict, 227 distractors, 14 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ------------+-+--------+----+---++-----------+----+-----+------------------------+-----------------+
 --> log-odds 110.465
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 226.814 (3.19076e+98), 25 match, 0 conflict, 272 distractors, 25 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ----+------++-+--------+----+---++-----------+----+---+-+----------------+----+--+-----------------+
 --> log-odds 226.814
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 565.166 (2.80769e+245), 54 match, 0 conflict, 243 distractors, 55 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: -++-+---+++++-+-+------+-+--++--+++--+-++-+-++-+-+++--+-++---+--+--------+----+--++---+---++-----+-+
 --> log-odds 565.166
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 934.584 (inf), 91 match, 0 conflict, 206 distractors, 92 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: -++++-+++++++++++---+--+-+--++-+++++-+-++-+-++-+-++++-++++--++-++--------+-+--+--++---+---++++--++-+
 --> log-odds 934.584
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1879.64 (inf), 192 match, 1 conflict, 409 distractors, 195 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++--+-+-+++-++++++++++++++++++++++++++++-+++++-++++++-+-++++++++---+++++++++-++-+
 --> log-odds 1879.64
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3300.8 (inf), 367 match, 0 conflict, 1129 distractors, 378 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++-++++-+++-++++++++++++++++++++++++++++++++++-++++++++-++++++++-+-++++++++++++-+
 --> log-odds 3300.8
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 5921.33 (inf), 707 match, 0 conflict, 2293 distractors, 726 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++-++++++++-++++++++++++++++
 --> log-odds 5921.33
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 10661 (inf), 1391 match, 0 conflict, 7045 distractors, 1432 index.
  RA,Dec = (282.859,-10.001), pixel scale 5.96322 arcsec/pix.
  Hit/miss:   Hit/miss: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-++++++++-++++++++++++++++
 --> log-odds 10661
Got 16 solutions.
Field: wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Field center: (RA,Dec) = (282.858522, -10.001290) deg.
Field center: (RA H:M:S, Dec D:M:S) = (18:51:26.045, -10:00:04.642).
Field size: 15.7125 x 10.5332 degrees
Field rotation angle: up is 179.703 degrees E of N
Field parity: neg
Creating new FITS file "/data_ssd/NMW-TexasTech/workdir/vast_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/out2108663_image_verify.QWOEgU/solution.new"...

renamed '/data_ssd/NMW-TexasTech/workdir/vast_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/out2108663_image_verify.QWOEgU/solution.new' -> 'wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits'
Checking if the catalog wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat corresponding to the image wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits alredy exist and is non-empty...
Catalog wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat corresponding to the image wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
verification OK: wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Generating wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat from image00003.cat
Catalog wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat corresponding to the image wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits created.
verification OK: wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
verification OK: wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Image size: 937.3'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 18:51:25.845 -10:00:07.64 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 6024 stars ###
'wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction_2152518.cat.log'
'wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits.wcscat.xy2sky.JkGItH' -> 'vast_debug_catalog_after_xy2sky_correction_2152518.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
###################################
# Check the image center offset between the reference and the blindly solved unmatched second-epoch image (pointing accuracy)
Reference image center 18:51:28.149 -09:59:22.72
Second-epoch image center 18:51:25.845 -10:00:07.64
Angular distance between the image centers 0.0157 deg.
###################################
The second-epoch image center is consistent with the reference image center (offset 0.0157 deg.) - the star matching failure is probably not a pointing problem
____ 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 ...

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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ)...  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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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 Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits catalog from cache
SExtractor catalog cache: restored Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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).
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.6,6.6,5.9,7.2,7.9,8.5 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.6,6.6,5.9,7.3,7.9,8.6 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits


Done with SExtractor!

TIMING SExtractor: 3 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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.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: 2026-06-08T06:53:22.3050169
Setting observation time using DATE-OBS keyword: 2026-06-08T06:53:22.3050169

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-06-08T06:53:22.305
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
Exposure 20 sec, 08.06.2026 06:53:22.305 UTC = JD(UTC) 2461199.78717946 mid. exp.
The reference image star  7646.286    37.942 is rejected, see bad_region.lst
The reference image star  9556.821    20.314 is rejected, see bad_region.lst
The reference image star  9188.252    16.944 is rejected, see bad_region.lst
The reference image star  9074.438    16.987 is rejected, see bad_region.lst
The reference image star  8764.604    12.077 is rejected, see bad_region.lst
The reference image star  8344.811    13.604 is rejected, see bad_region.lst
The reference image star  9243.542     9.756 is rejected, see bad_region.lst
The reference image star  9207.761    11.418 is rejected, see bad_region.lst
The reference image star  8961.357     8.406 is rejected, see bad_region.lst
The reference image star  7754.568    11.062 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: 12746, (12745 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: 4055
 * rejected close to frame edge: 59
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.2 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): 22
 * 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: -7.86
Detection limit from the magnitude-SNR relation= -7.9  (4.0 sigma detection)
The simple faintest star detection limit= -10.2
80 percent brightest stars detection limit= -10.9
Selected detection limit= -10.9
Final detection limit= -10.9 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.06.1 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): 18
 * 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'.
    12573 * detected, using  493/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.018986, number_of_ambiguous_matches=242 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=11620 inliers=11620 rms 0.48 -> 0.48 pix, max corner correction 0.2 pix] fraction_of_ambiguous_matches= 0.010199, number_of_ambiguous_matches=130 
11612 * matched, [CVPOLY iter 2: order=1 pairs=11612 inliers=11612 rms 0.30 -> 0.30 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.005570, number_of_ambiguous_matches=71 
11607 * matched (2nd iteration). [CVPOLY iter 3: order=2 pairs=11607 inliers=11607 rms 0.19 -> 0.19 pix, max corner correction 0.3 pix] fraction_of_ambiguous_matches= 0.003060, number_of_ambiguous_matches=39 
11604 * matched (3rd iteration). Success!
  rotation [degrees] =  -0.005
    12573 stars detected, 11604 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 10453, N_manually_selected_comparison_stars = 0
Using 10453 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 10453 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00000*Y_pix +0.00002
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 10452 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.84
    13715 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  204220 kB used, 238852 kB peak, 65261732 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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: 2026-10-17T03:18:58.1611525
Setting observation time using DATE-OBS keyword: 2026-10-17T03:18:58.1611525

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-17T03:18:58.161
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
The star  8956.885    17.160 is rejected, see bad_region.lst
The star  7539.974    13.682 is rejected, see bad_region.lst
The star  7784.065    20.887 is rejected, see bad_region.lst
The star  7890.880    44.285 is rejected, see bad_region.lst
The star  8760.872    58.446 is rejected, see bad_region.lst
The star  8438.389    42.629 is rejected, see bad_region.lst
The star  7647.806    48.311 is rejected, see bad_region.lst
The star  9474.349    66.097 is rejected, see bad_region.lst
The star  9075.847    67.450 is rejected, see bad_region.lst
The star  9334.019    69.618 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 4310
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 1673
 * rejected close to frame edge: 35
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.6 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): 6
 * 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'.
     4310 * detected, using  169/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000292, number_of_ambiguous_matches=4 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=3284 inliers=3284 rms 0.90 -> 0.29 pix, max corner correction 6.5 pix] fraction_of_ambiguous_matches= 0.000219, number_of_ambiguous_matches=3 
3283 * matched, [CVPOLY iter 2: order=1 pairs=3283 inliers=3283 rms 0.19 -> 0.19 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000219, number_of_ambiguous_matches=3 
3283 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=3283 inliers=3283 rms 0.19 -> 0.19 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000146, number_of_ambiguous_matches=2 
3283 * matched (3rd iteration). Success!
  rotation [degrees] = 179.995
     4310 stars detected,  3283 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 2800, N_manually_selected_comparison_stars = 0
Using 2800 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 2693 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00026*X_pix +0.00010*Y_pix +1.17460
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 2693 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -8.23
 ERROR!!! Magnitude calibration failure. Dropping image. 
    13715 objects stored in memory (1000000 max.)
memory:  204472 kB used, 238852 kB peak, 65261732 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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: 2026-10-17T03:19:41.5274534
Setting observation time using DATE-OBS keyword: 2026-10-17T03:19:41.5274534

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-17T03:19:41.527
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
The star  7790.124    15.361 is rejected, see bad_region.lst
The star  8963.531    11.360 is rejected, see bad_region.lst
The star  8961.493    12.463 is rejected, see bad_region.lst
The star  7545.985     8.175 is rejected, see bad_region.lst
The star  7896.930    38.760 is rejected, see bad_region.lst
The star  8444.479    37.110 is rejected, see bad_region.lst
The star  8766.975    52.818 is rejected, see bad_region.lst
The star  7653.873    42.782 is rejected, see bad_region.lst
The star  9481.430    60.212 is rejected, see bad_region.lst
The star  9478.489    61.428 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 5334
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 1735
 * rejected close to frame edge: 38
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.6 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): 13
 * 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'.
     5334 * detected, using  209/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000802, number_of_ambiguous_matches=11 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=4421 inliers=4421 rms 0.96 -> 0.46 pix, max corner correction 5.4 pix] fraction_of_ambiguous_matches= 0.000437, number_of_ambiguous_matches=6 
4417 * matched, [CVPOLY iter 2: order=3 pairs=4417 inliers=4417 rms 0.29 -> 0.28 pix, max corner correction 1.6 pix] fraction_of_ambiguous_matches= 0.000365, number_of_ambiguous_matches=5 
4417 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=4417 inliers=4417 rms 0.23 -> 0.23 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000219, number_of_ambiguous_matches=3 
4415 * matched (3rd iteration). Success!
  rotation [degrees] = 179.999
     5334 stars detected,  4415 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 3834, N_manually_selected_comparison_stars = 0
Using 3834 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 3675 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00024*X_pix +0.00011*Y_pix +1.04733
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 3675 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -8.22
 ERROR!!! Magnitude calibration failure. Dropping image. 
    13715 objects stored in memory (1000000 max.)
memory:  204472 kB used, 238852 kB peak, 65261732 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 0 seconds
Done with measurements! =)

Total number of measurements 25319 (25319 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 0 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  5009 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  2397 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  1344 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  1064 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  1790 stars

done!  =)
TIMING select_aperture: 1 seconds
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: 11519 objects, the longest string is 383 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 Sct-01-Q2b1x1 (less than 4 images processed)
exp_start= 08.06.2026 06:53:22.305  exp=   20.000  JD= 2461199.78717946  ap=  6.2  rotation=   0.000  *detected= 12746  *matched= 12746  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
exp_start= 08.06.2026 06:54:08.315  exp=   20.000  JD= 2461199.78771198  ap=  6.1  rotation=  -0.005  *detected= 12573  *matched= 11604  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
exp_start= 17.10.2026 03:18:58.161  exp=   20.000  JD= 2461330.63828890  ap=  6.6  rotation= 179.995  *detected=  4310  *matched=  3283  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
exp_start= 17.10.2026 03:19:41.527  exp=   20.000  JD= 2461330.63879082  ap=  6.6  rotation= 179.999  *detected=  5334  *matched=  4415  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
  
Last  image: 2461330.63828890 17.10.2026 03:18:58.161 UTC
WARNING: VaST exited with code 1 on the field Sct-01-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 ...

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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ)...  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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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 Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits catalog from cache
SExtractor catalog cache: restored Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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...
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
The above guess is based on the non-default gain value specified in default.sex by user
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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.2,5.6,6.1 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.1,5.6,6.1 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits


Done with SExtractor!

TIMING SExtractor: 28 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/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.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: 2026-06-08T06:53:22.3050169
Setting observation time using DATE-OBS keyword: 2026-06-08T06:53:22.3050169

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-06-08T06:53:22.305
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
Exposure 20 sec, 08.06.2026 06:53:22.305 UTC = JD(UTC) 2461199.78717946 mid. exp.
The reference image star  8034.193     1.489 is rejected, see bad_region.lst
The reference image star  8039.907     1.301 is rejected, see bad_region.lst
The reference image star  8269.301     1.433 is rejected, see bad_region.lst
The reference image star  9215.833     1.212 is rejected, see bad_region.lst
The reference image star  8436.831     1.347 is rejected, see bad_region.lst
The reference image star  8560.883     1.718 is rejected, see bad_region.lst
The reference image star  7748.044     2.931 is rejected, see bad_region.lst
The reference image star  7505.353     3.806 is rejected, see bad_region.lst
The reference image star  7813.498     1.288 is rejected, see bad_region.lst
The reference image star  8190.116     1.476 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: 174115, (174114 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 39
 * rejected inside rectangles defined in bad_region.lst: 34187
 * rejected close to frame edge: 526
 * 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): 6
 * 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: -7.52
Detection limit from the magnitude-SNR relation= -7.5  (4.0 sigma detection)
The simple faintest star detection limit= -7.1
80 percent brightest stars detection limit= -8.2
Selected detection limit= -8.2
Final detection limit= -8.2 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.4 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): 5
 * 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'.
    180196 * detected, using  517/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.033181, number_of_ambiguous_matches=5979 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=156770 inliers=156770 rms 0.41 -> 0.41 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.033280, number_of_ambiguous_matches=5997 
156767 * matched, [CVPOLY iter 2: order=1 pairs=156767 inliers=156767 rms 0.41 -> 0.41 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.033280, number_of_ambiguous_matches=5997 
156767 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=156767 inliers=156767 rms 0.41 -> 0.41 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.033280, number_of_ambiguous_matches=5997 
156767 * matched (3rd iteration). Success!
  rotation [degrees] =  -0.004
    180196 stars detected, 156767 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 128644, N_manually_selected_comparison_stars = 0
Using 128644 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 128639 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00000*Y_pix +0.00104
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 123152 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.50
    197544 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  356372 kB used, 383148 kB peak, 65261732 kB available RAM
Total number of measurements 354311 (354311 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_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.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: 2026-10-17T03:18:58.1611525
Setting observation time using DATE-OBS keyword: 2026-10-17T03:18:58.1611525

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-17T03:18:58.161
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
The star  7784.060    20.887 is rejected, see bad_region.lst
The star  8956.879    17.161 is rejected, see bad_region.lst
The star  7894.398    16.158 is rejected, see bad_region.lst
The star  7539.975    13.682 is rejected, see bad_region.lst
The star  9526.431    13.343 is rejected, see bad_region.lst
The star  9528.866    11.902 is rejected, see bad_region.lst
The star  7587.390    12.445 is rejected, see bad_region.lst
The star  9143.977    10.488 is rejected, see bad_region.lst
The star  7633.581     7.611 is rejected, see bad_region.lst
The star  8725.350     7.089 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 56722
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 3
 * rejected inside rectangles defined in bad_region.lst: 13979
 * rejected close to frame edge: 228
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.7 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): 504
 * 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'.
    56722 * detected, using  162/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000668, number_of_ambiguous_matches=132 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=44807 inliers=44807 rms 1.18 -> 0.43 pix, max corner correction 7.4 pix] fraction_of_ambiguous_matches= 0.000461, number_of_ambiguous_matches=91 
44845 * matched, [CVPOLY iter 2: order=1 pairs=44845 inliers=44845 rms 0.35 -> 0.35 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.000466, number_of_ambiguous_matches=92 
44844 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=44844 inliers=44844 rms 0.35 -> 0.35 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000466, number_of_ambiguous_matches=92 
44844 * matched (3rd iteration). Success!
  rotation [degrees] = 179.986
    56722 stars detected, 44844 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 33766, N_manually_selected_comparison_stars = 0
Using 33766 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 32286 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00025*X_pix +0.00010*Y_pix +1.02639
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 32286 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.84
 ERROR!!! Magnitude calibration failure. Dropping image. 
    197544 objects stored in memory (1000000 max.)
memory:  487704 kB used, 634908 kB peak, 65261732 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.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: 2026-10-17T03:19:41.5274534
Setting observation time using DATE-OBS keyword: 2026-10-17T03:19:41.5274534

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-10-17T03:19:41.527
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
The star  8225.327    18.951 is rejected, see bad_region.lst
The star  7669.920    21.114 is rejected, see bad_region.lst
The star  7790.119    15.360 is rejected, see bad_region.lst
The star  8963.334    11.364 is rejected, see bad_region.lst
The star  8961.414    12.998 is rejected, see bad_region.lst
The star  9428.172    13.005 is rejected, see bad_region.lst
The star  7900.288    10.678 is rejected, see bad_region.lst
The star  7545.985     8.176 is rejected, see bad_region.lst
The star  7502.022    10.472 is rejected, see bad_region.lst
The star  9534.378     6.346 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 69917
 * rejected as having no flux measurement: 1
 * rejected as having SNR<3.0: 3
 * rejected inside rectangles defined in bad_region.lst: 14473
 * rejected close to frame edge: 245
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.7 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): 671
 * 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'.
    69917 * detected, using  200/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.001357, number_of_ambiguous_matches=268 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=59054 inliers=59054 rms 1.18 -> 0.45 pix, max corner correction 6.8 pix] fraction_of_ambiguous_matches= 0.000906, number_of_ambiguous_matches=179 
59142 * matched, [CVPOLY iter 2: order=3 pairs=59142 inliers=59142 rms 0.38 -> 0.37 pix, max corner correction 2.3 pix] fraction_of_ambiguous_matches= 0.000916, number_of_ambiguous_matches=181 
59142 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=59142 inliers=59142 rms 0.37 -> 0.37 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000916, number_of_ambiguous_matches=181 
59142 * matched (3rd iteration). Success!
  rotation [degrees] = -179.993
    69917 stars detected, 59142 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 45214, N_manually_selected_comparison_stars = 0
Using 45214 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 43173 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00024*X_pix +0.00012*Y_pix +0.93433
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 43173 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.82
 ERROR!!! Magnitude calibration failure. Dropping image. 
    197544 objects stored in memory (1000000 max.)
memory:  492588 kB used, 634908 kB peak, 65261732 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 6 seconds
Done with measurements! =)

Total number of measurements 354311 (0 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 0 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 29431 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 42248 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for 20146 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for 28458 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for 36484 stars

done!  =)
TIMING select_aperture: 4 seconds
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: 156123 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 Sct-01-Q2b1x1 (less than 4 images processed)
exp_start= 08.06.2026 06:53:22.305  exp=   20.000  JD= 2461199.78717946  ap=  4.5  rotation=   0.000  *detected= 174115  *matched= 174115  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-53-22_20.00sec_5.00C_LIGHT_0225.fits
exp_start= 08.06.2026 06:54:08.315  exp=   20.000  JD= 2461199.78771198  ap=  4.4  rotation=  -0.004  *detected= 180196  *matched= 156767  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Sct-01-Q2b1x1_2026-06-08_01-54-08_20.00sec_5.00C_LIGHT_0226.fits
exp_start= 17.10.2026 03:18:58.161  exp=   20.000  JD= 2461330.63828890  ap=  4.7  rotation= 179.986  *detected= 56722  *matched= 44844  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-18-58_20.00sec_-0.00C_LIGHT_0000.fits
exp_start= 17.10.2026 03:19:41.527  exp=   20.000  JD= 2461330.63879082  ap=  4.7  rotation= -179.993  *detected= 69917  *matched= 59142  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-10-17_CI_Sct-01-Q2b1x1_003621_TTUQ2b1x1_2058996_TEJl79OJ/fd_Sct-01-Q2b1x1_2026-10-16_22-19-41_20.00sec_-0.00C_LIGHT_0001.fits
Source monitoring: NOT measuring the monitored positions on the field Sct-01-Q2b1x1 - the transient search raised a processing error: ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Source monitoring: the monitored positions on the field Sct-01-Q2b1x1 are recorded as run_error (rejected by this run, never measured later)
########### Completed Sct-01-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: Sat Oct 17 00:38:21 CDT 2026
=======================================
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
TIMING SExtractor: 28 seconds
TIMING matching_and_photometry: 6 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 4 seconds
FIELD_Sct-01-Q2b1x1: 84s (1.40 min)
=======================================
TOTAL_RUNTIME: 101s (1.68 min)
Finished: Sat Oct 17 00:40:02 CDT 2026