FITS images used in this processing run:

Field Aql-04-Q2b1x1 reference image: Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
Field Aql-04-Q2b1x1 reference image: Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
Field Aql-04-Q2b1x1 second-epoch image: Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Field Aql-04-Q2b1x1 second-epoch image: Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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
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.nao.ac.jp
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.nao.ac.jp)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Aql-04-Q2b1x1
#######################################
########### Starting Aql-04-Q2b1x1 ###########
Processing Aql-04-Q2b1x1
server tau has sufficient free disk space available: 681508 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 681508 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.png' -> 'transient_report/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits_preview.png'

Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits


renamed 'Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.png' -> 'transient_report/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits_preview.png'

Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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= 675.9946
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 559.3070
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1709.8373
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 316.0576
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1716.7102
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 318.1619
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.52937
INFO:                  SECOND_EPOCH__SD_ratio= 0.007
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     22.7000007629395 / [degC] Focuser temperature
AMBTEMP =                 24.1 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-22T03:50:51.8915794' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-22T08:50:51.8915794' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61274.3686561459 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-22T08:51:01.7939174' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61274.3687707521 / 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      =     295.713789630656 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -2.00003601599402 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     19.0538888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     254.114166666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.03795574297699 / 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  = 'Aql-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '19 42 51'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-02 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  =                20461 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20461 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.7000007629395 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.7000007629395 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 44.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.29 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 24.1 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 66.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             4.700376 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/d_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits :)

Spent 0.861868 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/d_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     22.6900005340576 / [degC] Focuser temperature
AMBTEMP =                 23.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-22T03:51:43.6034450' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-22T08:51:43.6034450' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61274.3692546645 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-22T08:51:53.5040124' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61274.3693692591 / 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      =     295.713789630127 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -2.00003603114425 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     18.8802777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     254.251666666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.06434067547047 / 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  = 'Aql-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '19 42 51'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-02 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  =                20461 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20461 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.6900005340576 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.6900005340576 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 44.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.69 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 51.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             2.200176 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/d_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits :)

Spent 0.953071 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/d_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
Previews of the CALIBRATED second-epoch images:


fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits



fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
  
Last  image: 2461274.86877189 22.08.2026 08:50:51.891 UTC
WARNING: VaST exited with code 1 on the field Aql-04-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_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
WCS_IMAGE_NAME=wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/lib/make_outxyls_for_astrometric_calibration found 1523 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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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: "out772706.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out772706.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 21.8061 (2.95298e+09), 3 match, 0 conflict, 2 distractors, 26 index.
  RA,Dec = (295.697,-2.01719), pixel scale 5.95086 arcsec/pix.
  Hit/miss:   Hit/miss: --+++(best)------------+--------------+-------------------------------------------------------------------
Field 1: solved with index index-4116.fits.
Field 1 solved: writing to file ./out772706.solved to indicate this.
Field: out772706.xyls
Field center: (RA,Dec) = (295.703215, -2.017818) deg.
Field center: (RA H:M:S, Dec D:M:S) = (19:42:48.772, -02:01:04.144).
Field size: 15.7411 x 10.5322 degrees
Field rotation angle: up is 179.654 degrees E of N
Field parity: neg

Inserting WCS header...  '/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits' -> 'fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits'
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Aug 22 04:02 fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
-rw-r--r-- 1 apache apache  12K Aug 22 04:02 out772706.wcs
Inserting WCS header (1st iteration local)...  Opening FITS image file fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits for reading...  done!
Creating new image file (wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits)...  done!
done!
All done!
done
The WCS header appears to be added with no errors in /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits (fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits)
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration01'        / astrometry.net run
Reading input file 1 of 1: "out772706.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out772706.axy"...
Only searching for solutions within 15.6617 degrees of RA,Dec (295.702,-2.01865)
  log-odds ratio 21.8061 (2.95298e+09), 3 match, 0 conflict, 2 distractors, 26 index.
  RA,Dec = (295.697,-2.01719), pixel scale 5.95086 arcsec/pix.
  Hit/miss:   Hit/miss: --+++(best)------------+--------------+-------------------------------------------------------------------
Field 1: solved with index index-4116.fits.
Field 1 solved: writing to file ./out772706.solved to indicate this.
Field: out772706.xyls
Field center: (RA,Dec) = (295.703032, -2.018987) deg.
Field center: (RA H:M:S, Dec D:M:S) = (19:42:48.728, -02:01:08.352).
Field size: 15.7231 x 10.5341 degrees
Field rotation angle: up is 179.662 degrees E of N
Field parity: neg

WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Aug 22 04:02 fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
-rw-r--r-- 1 apache apache  12K Aug 22 04:02 out772706.wcs
Inserting WCS header (2nd iteration local)...  Opening FITS image file fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits for reading...  done!
Creating new image file (wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits)...  done!
done!
All done!
The WCS header appears to be added with no errors.
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration02'        / astrometry.net run
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_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits"...
Found an existing WCS header, will try to verify it.
Extracting sources...
simplexy: found 14780 sources.
Solving...
Reading file "./wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.axy"...
Verifying WCS using indices with quads of size [63.4883, 951.728] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 175.522 (1.69173e+76), 15 match, 0 conflict, 66 distractors, 15 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +----+++----+++-------+-+---+---+-+--------+----------------------------+-------+(best)-------------------
 --> log-odds 175.522
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 305.66 (5.57512e+132), 26 match, 0 conflict, 71 distractors, 26 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +--+-+++-++-+++----+-++-+---+---+-++--+----+--+----+----------+---------+-------+---------------+(best)---
 --> log-odds 305.66
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 515.756 (9.76946e+223), 45 match, 0 conflict, 107 distractors, 45 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: ++-+-+++-++++++-+-+++++-+---+++++-+++-+-+-++-++-++-+------+--++---------+-------+---------------+---
 --> log-odds 515.756
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 959.894 (inf), 89 match, 0 conflict, 351 distractors, 92 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++----+++--++++--+++-++--+++--+-++++-----+--+-+---
 --> log-odds 959.894
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1726.59 (inf), 173 match, 0 conflict, 707 distractors, 181 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-+++++++-++--+--+-++++
 --> log-odds 1726.59
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3215.18 (inf), 350 match, 0 conflict, 1802 distractors, 368 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-+++++++-++--++-+-++++
 --> log-odds 3215.18
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 5827.16 (inf), 679 match, 0 conflict, 2961 distractors, 708 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-++++++++++-+++-+-++++
 --> log-odds 5827.16
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 10797.5 (inf), 1356 match, 0 conflict, 3081 distractors, 1438 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-++++++++++-+++-+-++++
 --> log-odds 10797.5
Verifying WCS using indices with quads of size [63.4883, 951.728] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 175.522 (1.69173e+76), 15 match, 0 conflict, 66 distractors, 15 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +----+++----+++-------+-+---+---+-+--------+----------------------------+-------+(best)-------------------
 --> log-odds 175.522
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 305.66 (5.57512e+132), 26 match, 0 conflict, 71 distractors, 26 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +--+-+++-++-+++----+-++-+---+---+-++--+----+--+----+----------+---------+-------+---------------+(best)---
 --> log-odds 305.66
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 515.756 (9.76946e+223), 45 match, 0 conflict, 107 distractors, 45 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: ++-+-+++-++++++-+-+++++-+---+++++-+++-+-+-++-++-++-+------+--++---------+-------+---------------+---
 --> log-odds 515.756
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 959.894 (inf), 89 match, 0 conflict, 351 distractors, 92 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++----+++--++++--+++-++--+++--+-++++-----+--+-+---
 --> log-odds 959.894
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1726.59 (inf), 173 match, 0 conflict, 707 distractors, 181 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-+++++++-++--+--+-++++
 --> log-odds 1726.59
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3215.18 (inf), 350 match, 0 conflict, 1802 distractors, 368 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-+++++++-++--++-+-++++
 --> log-odds 3215.18
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 5827.16 (inf), 679 match, 0 conflict, 2961 distractors, 708 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-++++++++++-+++-+-++++
 --> log-odds 5827.16
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 10797.5 (inf), 1356 match, 0 conflict, 3081 distractors, 1438 index.
  RA,Dec = (295.704,-2.01815), pixel scale 5.96321 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++-+++++++++++++++++++++++-++++++-+++++++++++++++-+++++++-++++++++++-+++-+-++++
 --> log-odds 10797.5
Got 16 solutions.
Field: wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Field center: (RA,Dec) = (295.703395, -2.018904) deg.
Field center: (RA H:M:S, Dec D:M:S) = (19:42:48.815, -02:01:08.055).
Field size: 15.7242 x 10.5339 degrees
Field rotation angle: up is 179.655 degrees E of N
Field parity: neg
Creating new FITS file "./wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.new"...

renamed 'wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.new' -> 'wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits'
Checking if the catalog wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits.wcscat corresponding to the image wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits alredy exist and is non-empty...
Catalog wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits.wcscat corresponding to the image wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
verification OK: wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Generating wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits.wcscat from image00003.cat
Catalog wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits.wcscat corresponding to the image wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits created.
verification OK: wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
verification OK: wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Image size: 937.9'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 19:42:48.617 -02:01:11.06 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 1580 stars ###
'wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/correct_sextractor_wcs_catalog_usingxy2sky859410.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
###################################
# Check the image center offset between the reference and the blindly solved unmatched second-epoch image (pointing accuracy)
Reference image center 19:42:53.275 -01:59:56.67
Second-epoch image center 19:42:48.617 -02:01:11.06
Angular distance between the image centers 0.0283 deg.
###################################
The second-epoch image center is consistent with the reference image center (offset 0.0283 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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL)...  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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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 Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits catalog from cache
SExtractor catalog cache: restored Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.1,6.1,5.4,6.7,7.3,7.9 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.1,6.1,5.5,6.7,7.3,7.9 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.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: 2026-06-12T09:10:32.9906540
Setting observation time using DATE-OBS keyword: 2026-06-12T09:10:32.9906540

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-06-12T09:10:32.990
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
Exposure 20 sec, 12.06.2026 09:10:32.990 UTC = JD(UTC) 2461203.88244201 mid. exp.
The reference image star  9060.579    21.162 is rejected, see bad_region.lst
The reference image star  8195.807    19.132 is rejected, see bad_region.lst
The reference image star  8244.760    15.951 is rejected, see bad_region.lst
The reference image star  8034.727    18.301 is rejected, see bad_region.lst
The reference image star  8146.229    17.665 is rejected, see bad_region.lst
The reference image star  8820.172    16.205 is rejected, see bad_region.lst
The reference image star  8426.248    13.830 is rejected, see bad_region.lst
The reference image star  9194.113    12.817 is rejected, see bad_region.lst
The reference image star  8468.204    13.386 is rejected, see bad_region.lst
The reference image star  7618.331    11.612 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: 14562, (14562 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: 5569
 * rejected close to frame edge: 84
 * rejected as being too small (<1.5 pix): 0
 * rejected as being too large (>6.1 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): 12
 * 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: -7.75
Detection limit from the magnitude-SNR relation= -7.7  (5.0 sigma detection)
The simple faintest star detection limit= -9.8
80 percent brightest stars detection limit= -10.5
Selected detection limit= -10.5
Final detection limit= -10.5 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.06.0 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 16
 * 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'.
    14836 * detected, using  509/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.015233, number_of_ambiguous_matches=226 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=13697 inliers=13697 rms 0.39 -> 0.39 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.007684, number_of_ambiguous_matches=114 
13693 * matched, [CVPOLY iter 2: order=2 pairs=13693 inliers=13693 rms 0.27 -> 0.27 pix, max corner correction 0.3 pix] fraction_of_ambiguous_matches= 0.004651, number_of_ambiguous_matches=69 
13687 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=13687 inliers=13687 rms 0.15 -> 0.15 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.001887, number_of_ambiguous_matches=28 
13684 * matched (3rd iteration). Success!
  rotation [degrees] =   0.023
    14836 stars detected, 13684 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 12783, N_manually_selected_comparison_stars = 0
Using 12783 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 12782 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00002*X_pix -0.00001*Y_pix -0.05435
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 12743 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.68
    15714 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  205720 kB used, 240892 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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: 2026-08-22T08:50:51.8915794
Setting observation time using DATE-OBS keyword: 2026-08-22T08:50:51.8915794

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T08:50:51.891
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
The star  7934.837    14.352 is rejected, see bad_region.lst
The star  8799.207    12.236 is rejected, see bad_region.lst
The star  8311.775    48.416 is rejected, see bad_region.lst
The star  9088.761   142.804 is rejected, see bad_region.lst
The star  8145.693   153.515 is rejected, see bad_region.lst
The star  7569.548   193.499 is rejected, see bad_region.lst
The star  9285.522   233.524 is rejected, see bad_region.lst
The star  9471.679   326.829 is rejected, see bad_region.lst
The star  7799.730   320.048 is rejected, see bad_region.lst
The star  9182.091   331.282 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1455
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 113
 * rejected close to frame edge: 12
 * rejected as being too small (<1.5 pix): 0
 * rejected as being too large (>6.1 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): 0
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
     1455 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=1451 inliers=1451 rms 0.85 -> 0.14 pix, max corner correction 10.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1451 * matched, [CVPOLY iter 2: order=1 pairs=1451 inliers=1451 rms 0.14 -> 0.14 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1451 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1451 inliers=1451 rms 0.14 -> 0.14 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1451 * matched (3rd iteration). Success!
  rotation [degrees] =   0.228
     1455 stars detected,  1451 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 1162, N_manually_selected_comparison_stars = 0
Using 1162 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 1137 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00016*X_pix +0.00005*Y_pix -0.59061
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 1137 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.96
 ERROR!!! Magnitude calibration failure. Dropping image. 
    15714 objects stored in memory (1000000 max.)
memory:  205060 kB used, 240892 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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: 2026-08-22T08:51:43.6034450
Setting observation time using DATE-OBS keyword: 2026-08-22T08:51:43.6034450

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T08:51:43.603
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
The star  8797.207    19.445 is rejected, see bad_region.lst
The star  7932.873    21.652 is rejected, see bad_region.lst
The star  8309.660    55.602 is rejected, see bad_region.lst
The star  9098.977    84.506 is rejected, see bad_region.lst
The star  9086.669   150.022 is rejected, see bad_region.lst
The star  8143.570   160.788 is rejected, see bad_region.lst
The star  7567.542   200.833 is rejected, see bad_region.lst
The star  9283.548   240.655 is rejected, see bad_region.lst
The star  9469.657   333.863 is rejected, see bad_region.lst
The star  7797.767   327.447 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1459
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 95
 * rejected close to frame edge: 9
 * rejected as being too small (<1.5 pix): 0
 * rejected as being too large (>6.1 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): 0
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
     1459 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=1453 inliers=1453 rms 0.83 -> 0.13 pix, max corner correction 10.3 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1453 * matched, [CVPOLY iter 2: order=1 pairs=1453 inliers=1453 rms 0.13 -> 0.13 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1453 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1453 inliers=1453 rms 0.13 -> 0.13 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1453 * matched (3rd iteration). Success!
  rotation [degrees] =   0.231
     1459 stars detected,  1453 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 1169, N_manually_selected_comparison_stars = 0
Using 1169 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 1128 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00016*X_pix +0.00005*Y_pix -0.59306
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 1128 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.97
 ERROR!!! Magnitude calibration failure. Dropping image. 
    15714 objects stored in memory (1000000 max.)
memory:  205060 kB used, 240892 kB peak, 65263848 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 0 seconds
Done with measurements! =)

Total number of measurements 29398 (29398 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 1 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  2578 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  4126 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  1836 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  2537 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  2607 stars

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

Computing, please wait a bit
.......................................................................................................................................
vast_lightcurve_statistics.log: 13574 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 Aql-04-Q2b1x1 (less than 4 images processed)
exp_start= 12.06.2026 09:10:32.990  exp=   20.000  JD= 2461203.88244201  ap=  6.1  rotation=   0.000  *detected= 14562  *matched= 14562  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
exp_start= 20.07.2026 07:15:16.352  exp=   20.000  JD= 2461241.80238833  ap=  6.0  rotation=   0.023  *detected= 14836  *matched= 13684  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
exp_start= 22.08.2026 08:50:51.891  exp=   20.000  JD= 2461274.86877189  ap=  6.1  rotation=   0.228  *detected=  1455  *matched=  1451  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
exp_start= 22.08.2026 08:51:43.603  exp=   20.000  JD= 2461274.86937041  ap=  6.1  rotation=   0.231  *detected=  1459  *matched=  1453  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
  
Last  image: 2461274.86877189 22.08.2026 08:50:51.891 UTC
WARNING: VaST exited with code 1 on the field Aql-04-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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL)...  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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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 Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits catalog from cache
SExtractor catalog cache: restored Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits > image00003.cat.sex_log 2>&1
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.4,4.4,4.0,4.8,5.3,5.7 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.4,4.4,3.9,4.8,5.3,5.7 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits


Done with SExtractor!

TIMING SExtractor: 6 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/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.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: 2026-06-12T09:10:32.9906540
Setting observation time using DATE-OBS keyword: 2026-06-12T09:10:32.9906540

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-06-12T09:10:32.990
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
Exposure 20 sec, 12.06.2026 09:10:32.990 UTC = JD(UTC) 2461203.88244201 mid. exp.
The reference image star  7560.606     1.224 is rejected, see bad_region.lst
The reference image star  7906.903     2.177 is rejected, see bad_region.lst
The reference image star  9288.750     2.006 is rejected, see bad_region.lst
The reference image star  8056.965     1.466 is rejected, see bad_region.lst
The reference image star  8376.734     2.657 is rejected, see bad_region.lst
The reference image star  9099.758     1.516 is rejected, see bad_region.lst
The reference image star  9332.199     1.744 is rejected, see bad_region.lst
The reference image star  9347.756     1.310 is rejected, see bad_region.lst
The reference image star  8069.220     4.404 is rejected, see bad_region.lst
The reference image star  8683.580     4.786 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: 134577, (134577 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 15
 * rejected inside rectangles defined in bad_region.lst: 31938
 * rejected close to frame edge: 568
 * 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): 64
 * 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: -7.41
Detection limit from the magnitude-SNR relation= -7.4  (5.0 sigma detection)
The simple faintest star detection limit= -6.8
80 percent brightest stars detection limit= -7.9
Selected detection limit= -7.9
Final detection limit= -7.9 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.5 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 31
 * 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'.
    146652 * detected, using  544/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.025550, number_of_ambiguous_matches=3747 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=126172 inliers=126172 rms 0.34 -> 0.33 pix, max corner correction 0.3 pix] fraction_of_ambiguous_matches= 0.025543, number_of_ambiguous_matches=3746 
126171 * matched, [CVPOLY iter 2: order=1 pairs=126171 inliers=126171 rms 0.33 -> 0.33 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.025543, number_of_ambiguous_matches=3746 
126171 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=126171 inliers=126171 rms 0.33 -> 0.33 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.022120, number_of_ambiguous_matches=3244 
126141 * matched (3rd iteration). Success!
  rotation [degrees] =   0.023
    146652 stars detected, 126141 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 109576, N_manually_selected_comparison_stars = 0
Using 109576 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 109546 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00001*X_pix -0.00001*Y_pix -0.03416
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 102159 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.33
    155088 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  318240 kB used, 352260 kB peak, 65263848 kB available RAM
Total number of measurements 281229 (281229 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_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.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: 2026-08-22T08:50:51.8915794
Setting observation time using DATE-OBS keyword: 2026-08-22T08:50:51.8915794

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T08:50:51.891
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
The star  8799.199    12.239 is rejected, see bad_region.lst
The star  7934.839    14.355 is rejected, see bad_region.lst
The star  8272.847     6.558 is rejected, see bad_region.lst
The star  7720.643     4.292 is rejected, see bad_region.lst
The star  8694.433     1.468 is rejected, see bad_region.lst
The star  8177.615    23.045 is rejected, see bad_region.lst
The star  8311.787    48.422 is rejected, see bad_region.lst
The star  7973.110    49.424 is rejected, see bad_region.lst
The star  9166.524    52.157 is rejected, see bad_region.lst
The star  9169.549    51.996 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 19560
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 1
 * rejected inside rectangles defined in bad_region.lst: 1149
 * rejected close to frame edge: 104
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.4 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): 56
 * 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'.
    19560 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000045, number_of_ambiguous_matches=7 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=19425 inliers=19425 rms 0.78 -> 0.28 pix, max corner correction 10.4 pix] fraction_of_ambiguous_matches= 0.000032, number_of_ambiguous_matches=5 
19449 * matched, [CVPOLY iter 2: order=1 pairs=19449 inliers=19449 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000032, number_of_ambiguous_matches=5 
19449 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=19449 inliers=19449 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000032, number_of_ambiguous_matches=5 
19449 * matched (3rd iteration). Success!
  rotation [degrees] =   0.245
    19560 stars detected, 19449 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 15709, N_manually_selected_comparison_stars = 0
Using 15709 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 15080 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00017*X_pix +0.00005*Y_pix -0.63210
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 15080 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.61
 ERROR!!! Magnitude calibration failure. Dropping image. 
    155088 objects stored in memory (1000000 max.)
memory:  453432 kB used, 531240 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.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: 2026-08-22T08:51:43.6034450
Setting observation time using DATE-OBS keyword: 2026-08-22T08:51:43.6034450

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T08:51:43.603
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
The star  7932.878    21.654 is rejected, see bad_region.lst
The star  8797.193    19.443 is rejected, see bad_region.lst
The star  8270.355    13.999 is rejected, see bad_region.lst
The star  7718.465    11.506 is rejected, see bad_region.lst
The star  8693.541     6.088 is rejected, see bad_region.lst
The star  8691.005     6.266 is rejected, see bad_region.lst
The star  9145.987     4.759 is rejected, see bad_region.lst
The star  8175.471    30.547 is rejected, see bad_region.lst
The star  8309.663    55.604 is rejected, see bad_region.lst
The star  9166.297    59.074 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 19969
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 3
 * rejected inside rectangles defined in bad_region.lst: 989
 * rejected close to frame edge: 98
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.4 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): 64
 * 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'.
    19969 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000064, number_of_ambiguous_matches=10 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=19821 inliers=19821 rms 1.03 -> 0.25 pix, max corner correction 8.8 pix] fraction_of_ambiguous_matches= 0.000045, number_of_ambiguous_matches=7 
19822 * matched, [CVPOLY iter 2: order=1 pairs=19822 inliers=19822 rms 0.23 -> 0.23 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000045, number_of_ambiguous_matches=7 
19822 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=19822 inliers=19822 rms 0.23 -> 0.23 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000045, number_of_ambiguous_matches=7 
19822 * matched (3rd iteration). Success!
  rotation [degrees] =   0.222
    19969 stars detected, 19822 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 15999, N_manually_selected_comparison_stars = 0
Using 15999 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 15254 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00017*X_pix +0.00005*Y_pix -0.64306
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 15254 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.61
 ERROR!!! Magnitude calibration failure. Dropping image. 
    155088 objects stored in memory (1000000 max.)
memory:  453564 kB used, 531240 kB peak, 65263848 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 7 seconds
Done with measurements! =)

Total number of measurements 281229 (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 29777 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 30638 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for 18411 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for 16896 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for 30419 stars

done!  =)
TIMING select_aperture: 6 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: 125706 objects, the longest string is 385 bytes.
Allocating memory for resorting the file.



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



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

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

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

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field Aql-04-Q2b1x1 (less than 4 images processed)
exp_start= 12.06.2026 09:10:32.990  exp=   20.000  JD= 2461203.88244201  ap=  4.7  rotation=   0.000  *detected= 134577  *matched= 134577  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-06-12_04-10-32_20.00sec_5.00C_LIGHT_0226.fits
exp_start= 20.07.2026 07:15:16.352  exp=   20.000  JD= 2461241.80238833  ap=  4.5  rotation=   0.023  *detected= 146652  *matched= 126141  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Aql-04-Q2b1x1_2026-07-20_02-15-16_20.00sec_4.90C_LIGHT_0290.fits
exp_start= 22.08.2026 08:50:51.891  exp=   20.000  JD= 2461274.86877189  ap=  4.4  rotation=   0.245  *detected= 19560  *matched= 19449  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-50-51_20.00sec_-0.00C_LIGHT_0120.fits
exp_start= 22.08.2026 08:51:43.603  exp=   20.000  JD= 2461274.86937041  ap=  4.4  rotation=   0.222  *detected= 19969  *matched= 19822  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_Aql-04-Q2b1x1_035816_TTUQ2b1x1_545333_7WtD9NYL/fd_Aql-04-Q2b1x1_2026-08-22_03-51-43_20.00sec_-0.00C_LIGHT_0121.fits
########### Completed Aql-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
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 Aug 22 04:00:11 CDT 2026
=======================================
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 7 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 6 seconds
FIELD_Aql-04-Q2b1x1: 80s (1.33 min)
=======================================
TOTAL_RUNTIME: 168s (2.80 min)
Finished: Sat Aug 22 04:02:59 CDT 2026