FITS images used in this processing run:

Field Her-03-Q2b1x1 reference image: Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Field Her-03-Q2b1x1 reference image: Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
Field Her-03-Q2b1x1 second-epoch image: Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
Field Her-03-Q2b1x1 second-epoch image: Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits

WARNING: VaST exited with code 1 on the field Her-03-Q2b1x1 after completing the measurements (memory cleanup crash); the transient search continues.
## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 2
Ref.  image: 2461239.74586714 18.07.2026 05:53:52.921   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
First image: 2461239.74586714 18.07.2026 05:53:52.921   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Last  image: 2461239.74660598 18.07.2026 05:54:56.757   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.33
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 2 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  10091
Objects passed selection criteria:  10003
Measurements per detected object (mean, median, min, max):    2.0    2.0    2    2
Measurements per selected object (mean, median, min, max):    2.0    2.0    2    2
Average stars detected per image: 10722
Average stars matched: 10421 (97.1927 %)
Memory usage VmPeak:   236792 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Aug  6 15:05:04 CDT 2026
VaST build number  1.0rc89-190-gdf2934b0
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-06)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Aug  8 04:31:56 CDT 2026
Host name: tau
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################
WARNING: VaST exited with code 1 on the field Her-03-Q2b1x1 after completing the measurements (memory cleanup crash); the transient search continues.
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 2
Ref.  image: 2461239.74586714 18.07.2026 05:53:52.921   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
First image: 2461239.74586714 18.07.2026 05:53:52.921   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Last  image: 2461239.74660598 18.07.2026 05:54:56.757   /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.07
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  62284
Objects passed selection criteria:  62035
Measurements per detected object (mean, median, min, max):    2.0    2.0    2    2
Measurements per selected object (mean, median, min, max):    2.0    2.0    2    2
Average stars detected per image: 68354.5
Average stars matched: 65307.5 (95.5424 %)
Memory usage VmPeak:   286920 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Aug  6 15:05:04 CDT 2026
VaST build number  1.0rc89-190-gdf2934b0
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-06)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Aug  8 04:32:05 CDT 2026
Host name: tau
***** 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.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Her-03-Q2b1x1
#######################################
########### Starting Her-03-Q2b1x1 ###########
Processing Her-03-Q2b1x1
server tau has sufficient free disk space available: 438252 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 438252 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.png' -> 'transient_report/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits_preview.png'

Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits


renamed 'Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.png' -> 'transient_report/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits_preview.png'

Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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= 388.2438
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 524.6046
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1663.9615
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 323.6357
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1671.8697
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 322.1168
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 4.28587
INFO:                  SECOND_EPOCH__SD_ratio= 0.005
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 =     23.4799995422363 / [degC] Focuser temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
Header: 67 keys total, 4 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= '2026-08-08T04:25:33.2267703' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-08T09:25:33.2267703' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61260.3927456713 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-08T09:25:43.1296813' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61260.3928602892 / 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      =     261.821807119394 / [deg] RA of telescope" status=0
Record 32: "DEC     =     38.0000346145363 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     16.9738888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =             304.7425 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.38913314314119 / 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  = 'Her-03'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '17 27 16'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+38 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  =                20457 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20457 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     23.4799995422363 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     23.4799995422363 / [degC] Focuser temperature" status=0
Record 55: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 56: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 57: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 58: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 59: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 60: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 61: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 62: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 63: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 64: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 65: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 66: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 67: "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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/d_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits :)

Spent 0.468586 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-07-30.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/d_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit 9576 6388  16 bitpix
Avarage count on flat field image: 19899.553568
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits :)


No overscan detected - all values seem high! (left_median=13115.0, right_median=15628.5)
renamed 'mff_TTUQ2b1x1_2026-07-30.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     23.6100006103516 / [degC] Focuser temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Header: 67 keys total, 4 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= '2026-08-08T04:26:31.5331280' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-08T09:26:31.5331280' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61260.3934205207 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-08T09:26:41.4354299' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61260.3935351274 / 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      =     261.821807150734 / [deg] RA of telescope" status=0
Record 32: "DEC     =     38.0000345803048 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     16.8086111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     304.841944444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.42070601744313 / 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  = 'Her-03'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '17 27 16'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+38 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  =                20457 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20457 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     23.6100006103516 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     23.6100006103516 / [degC] Focuser temperature" status=0
Record 55: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 56: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 57: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 58: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 59: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 60: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 61: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 62: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 63: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 64: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 65: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 66: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 67: "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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/d_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits :)

Spent 0.463918 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-07-30.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/d_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit 9576 6388  16 bitpix
Avarage count on flat field image: 19899.553568
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits :)


No overscan detected - all values seem high! (left_median=13115.0, right_median=15628.5)
renamed 'mff_TTUQ2b1x1_2026-07-30.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Previews of the CALIBRATED second-epoch images:


fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits



fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
  
Last  image: 2461260.89286141 08.08.2026 09:25:33.226 UTC
WARNING: VaST exited with code 1 on the field Her-03-Q2b1x1 AFTER completing the measurements. This is a memory-management crash during cleanup (a VaST bug to report), NOT a wrong field / clouds / bad focus. The lightcurves were written, so the transient search continues.
____ VaST output (crashed during memory cleanup; the measurements above are complete) ____

--==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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y)...  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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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 Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits catalog from cache
SExtractor catalog cache: restored Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.3,6.3,5.6,6.9,7.5,8.2 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.3,6.3,5.6,6.9,7.5,8.2 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits


Done with SExtractor!

TIMING SExtractor: 1 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.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: 2026-07-18T05:53:52.9216620
Setting observation time using DATE-OBS keyword: 2026-07-18T05:53:52.9216620

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-07-18T05:53:52.921
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Exposure 20 sec, 18.07.2026 05:53:52.921 UTC = JD(UTC) 2461239.74586714 mid. exp.
The reference image star  9031.129    17.494 is rejected, see bad_region.lst
The reference image star  8410.761    13.226 is rejected, see bad_region.lst
The reference image star  7737.391    11.336 is rejected, see bad_region.lst
The reference image star  8365.356     9.627 is rejected, see bad_region.lst
The reference image star  8713.335     6.933 is rejected, see bad_region.lst
The reference image star  7586.700    30.909 is rejected, see bad_region.lst
The reference image star  7834.827    27.730 is rejected, see bad_region.lst
The reference image star  7916.069    39.025 is rejected, see bad_region.lst
The reference image star  8157.473    32.121 is rejected, see bad_region.lst
The reference image star  8750.075    41.462 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: 10751, (10750 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: 2359
 * rejected close to frame edge: 49
 * 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): 4
 * 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: -7.33
Detection limit from the magnitude-SNR relation= -7.3  (5.0 sigma detection)
The simple faintest star detection limit= -9.4
80 percent brightest stars detection limit= -10.2
Selected detection limit= -10.2
Final detection limit= -10.2 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.06.1 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 4
 * 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'.
    10693 * detected, using  497/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.009767, number_of_ambiguous_matches=105 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=10094 inliers=10094 rms 0.22 -> 0.21 pix, max corner correction 0.4 pix] fraction_of_ambiguous_matches= 0.004837, number_of_ambiguous_matches=52 
10094 * matched, [CVPOLY iter 2: order=1 pairs=10094 inliers=10094 rms 0.18 -> 0.18 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.002883, number_of_ambiguous_matches=31 
10091 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=10091 inliers=10091 rms 0.08 -> 0.08 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.001581, number_of_ambiguous_matches=17 
10091 * matched (3rd iteration). Success!
  rotation [degrees] =   0.007
    10693 stars detected, 10091 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 9397, N_manually_selected_comparison_stars = 0
Using 9397 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 9397 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00000*Y_pix -0.00049
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 9395 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.33
    11353 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  202676 kB used, 236792 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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: 2026-08-08T09:25:33.2267703
Setting observation time using DATE-OBS keyword: 2026-08-08T09:25:33.2267703

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-08T09:25:33.226
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
The star  8522.490    33.763 is rejected, see bad_region.lst
The star  7859.273    40.295 is rejected, see bad_region.lst
The star  8468.192   111.684 is rejected, see bad_region.lst
The star  7631.587   130.933 is rejected, see bad_region.lst
The star  7627.784   184.297 is rejected, see bad_region.lst
The star  8056.490   275.742 is rejected, see bad_region.lst
The star  7870.035   381.767 is rejected, see bad_region.lst
The star  7676.153   526.072 is rejected, see bad_region.lst
The star  8143.444   532.854 is rejected, see bad_region.lst
The star  8015.330   621.641 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1168
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 24
 * rejected close to frame edge: 11
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.3 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'.
     1168 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000088, number_of_ambiguous_matches=1 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=1153 inliers=1153 rms 0.75 -> 0.40 pix, max corner correction 13.1 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1153 * matched, [CVPOLY iter 2: order=3 pairs=1153 inliers=1153 rms 0.14 -> 0.13 pix, max corner correction 0.8 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1153 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1153 inliers=1153 rms 0.13 -> 0.13 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1153 * matched (3rd iteration). Success!
  rotation [degrees] =   0.779
     1168 stars detected,  1153 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 822, N_manually_selected_comparison_stars = 0
Using 822 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 712 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00015*X_pix +0.00014*Y_pix -0.78107
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 712 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.97
 ERROR!!! Magnitude calibration failure. Dropping image. 
    11353 objects stored in memory (1000000 max.)
memory:  201808 kB used, 236792 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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: 2026-08-08T09:26:31.5331280
Setting observation time using DATE-OBS keyword: 2026-08-08T09:26:31.5331280

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-08T09:26:31.533
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
The star  8515.301    38.631 is rejected, see bad_region.lst
The star  7852.245    45.043 is rejected, see bad_region.lst
The star  7624.295   135.637 is rejected, see bad_region.lst
The star  7620.388   188.946 is rejected, see bad_region.lst
The star  8049.258   280.591 is rejected, see bad_region.lst
The star  9254.604   309.241 is rejected, see bad_region.lst
The star  7862.764   386.520 is rejected, see bad_region.lst
The star  7668.682   530.669 is rejected, see bad_region.lst
The star  8007.939   626.456 is rejected, see bad_region.lst
The star  7830.955   683.225 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1138
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 16
 * rejected close to frame edge: 7
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.3 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'.
     1138 * 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=2 pairs=1122 inliers=1122 rms 0.73 -> 0.42 pix, max corner correction 7.6 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1121 * matched, [CVPOLY iter 2: order=3 pairs=1121 inliers=1121 rms 0.16 -> 0.13 pix, max corner correction 5.2 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1121 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1121 inliers=1121 rms 0.13 -> 0.13 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1121 * matched (3rd iteration). Success!
  rotation [degrees] =   0.772
     1138 stars detected,  1121 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 800, N_manually_selected_comparison_stars = 0
Using 800 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 738 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00013*X_pix +0.00013*Y_pix -0.72598
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 738 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.98
 ERROR!!! Magnitude calibration failure. Dropping image. 
    11353 objects stored in memory (1000000 max.)
memory:  201956 kB used, 236792 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 21444 (21444 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  2117 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  2729 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  1488 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  1829 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  1928 stars

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

Computing, please wait a bit
....................................................................................................
vast_lightcurve_statistics.log: 10003 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)
_____________________
SExtractor catalog cache: saved Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits.cat to cache
SExtractor catalog cache: saved Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Last  image: 2461260.89286141 08.08.2026 09:25:33.226 UTC
ERROR running VaST on the field Her-03-Q2b1x1 (less than 4 images processed)
exp_start= 18.07.2026 05:53:52.921  exp=   20.000  JD= 2461239.74586714  ap=  6.1  rotation=   0.000  *detected= 10751  *matched= 10751  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
exp_start= 18.07.2026 05:54:56.757  exp=   20.000  JD= 2461239.74660598  ap=  6.1  rotation=   0.007  *detected= 10693  *matched= 10091  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
exp_start= 08.08.2026 09:25:33.226  exp=   20.000  JD= 2461260.89286141  ap=  6.3  rotation=   0.779  *detected=  1168  *matched=  1153  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
exp_start= 08.08.2026 09:26:31.533  exp=   20.000  JD= 2461260.89353626  ap=  6.3  rotation=   0.772  *detected=  1138  *matched=  1121  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
  
Last  image: 2461260.89286141 08.08.2026 09:25:33.226 UTC
WARNING: VaST exited with code 1 on the field Her-03-Q2b1x1 AFTER completing the measurements. This is a memory-management crash during cleanup (a VaST bug to report), NOT a wrong field / clouds / bad focus. The lightcurves were written, so the transient search continues.
____ VaST output (crashed during memory cleanup; the measurements above are complete) ____

--==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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y)...  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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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 Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits catalog from cache
SExtractor catalog cache: restored Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
Parent process says: we are done fork()ing.
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2Waiting for thread 2 to finish...
b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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).
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
The above guess is based on the non-default gain value specified in default.sex by user
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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.1,5.6,6.1 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.2,5.6,6.1 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.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: 2026-07-18T05:53:52.9216620
Setting observation time using DATE-OBS keyword: 2026-07-18T05:53:52.9216620

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-07-18T05:53:52.921
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
Exposure 20 sec, 18.07.2026 05:53:52.921 UTC = JD(UTC) 2461239.74586714 mid. exp.
The reference image star  7586.695    30.909 is rejected, see bad_region.lst
The reference image star  9031.135    17.492 is rejected, see bad_region.lst
The reference image star  8410.755    13.227 is rejected, see bad_region.lst
The reference image star  7920.066    14.821 is rejected, see bad_region.lst
The reference image star  7924.595    12.186 is rejected, see bad_region.lst
The reference image star  9164.721    13.050 is rejected, see bad_region.lst
The reference image star  9166.963    12.522 is rejected, see bad_region.lst
The reference image star  8444.299    12.009 is rejected, see bad_region.lst
The reference image star  7737.392    11.337 is rejected, see bad_region.lst
The reference image star  8973.355    10.805 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: 68331, (68330 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 23
 * rejected inside rectangles defined in bad_region.lst: 10488
 * rejected close to frame edge: 285
 * 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): 125
 * 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: -7.07
Detection limit from the magnitude-SNR relation= -7.1  (5.0 sigma detection)
The simple faintest star detection limit= -6.4
80 percent brightest stars detection limit= -7.5
Selected detection limit= -7.5
Final detection limit= -7.5 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.6 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 128
 * 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'.
    68378 * detected, using  500/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.017842, number_of_ambiguous_matches=1220 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=62359 inliers=62359 rms 0.76 -> 0.38 pix, max corner correction 1.4 pix] fraction_of_ambiguous_matches= 0.017667, number_of_ambiguous_matches=1208 
62357 * matched, [CVPOLY iter 2: order=1 pairs=62357 inliers=62357 rms 0.38 -> 0.38 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.017681, number_of_ambiguous_matches=1209 
62356 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=62356 inliers=62356 rms 0.38 -> 0.38 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.007268, number_of_ambiguous_matches=497 
62284 * matched (3rd iteration). Success!
  rotation [degrees] =   0.005
    68378 stars detected, 62284 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 57804, N_manually_selected_comparison_stars = 0
Using 57804 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 57790 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix -0.00000*Y_pix -0.00103
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 54722 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.04
    74425 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  245312 kB used, 286920 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.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: 2026-08-08T09:25:33.2267703
Setting observation time using DATE-OBS keyword: 2026-08-08T09:25:33.2267703

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-08T09:25:33.226
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
The star  7962.608     1.811 is rejected, see bad_region.lst
The star  8522.487    33.762 is rejected, see bad_region.lst
The star  8343.368    21.172 is rejected, see bad_region.lst
The star  8383.861    26.504 is rejected, see bad_region.lst
The star  7859.274    40.295 is rejected, see bad_region.lst
The star  7611.003    33.165 is rejected, see bad_region.lst
The star  8600.323    73.204 is rejected, see bad_region.lst
The star  7742.032    84.814 is rejected, see bad_region.lst
The star  8468.191   111.676 is rejected, see bad_region.lst
The star  7674.606   107.629 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 10076
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 141
 * rejected close to frame edge: 73
 * 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): 37
 * 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'.
    10076 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000054, number_of_ambiguous_matches=4 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=9957 inliers=9957 rms 0.84 -> 0.26 pix, max corner correction 14.6 pix] fraction_of_ambiguous_matches= 0.000054, number_of_ambiguous_matches=4 
9959 * matched, [CVPOLY iter 2: order=1 pairs=9959 inliers=9959 rms 0.28 -> 0.28 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000054, number_of_ambiguous_matches=4 
9959 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=9959 inliers=9959 rms 0.28 -> 0.28 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000027, number_of_ambiguous_matches=2 
9952 * matched (3rd iteration). Success!
  rotation [degrees] =   0.791
    10076 stars detected,  9952 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 8468, N_manually_selected_comparison_stars = 0
Using 8468 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 6496 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00015*X_pix +0.00014*Y_pix -0.87337
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 6496 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.65
 ERROR!!! Magnitude calibration failure. Dropping image. 
    74425 objects stored in memory (1000000 max.)
memory:  242540 kB used, 286920 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.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: 2026-08-08T09:26:31.5331280
Setting observation time using DATE-OBS keyword: 2026-08-08T09:26:31.5331280

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-08T09:26:31.533
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
The star  7955.569     5.133 is rejected, see bad_region.lst
The star  8515.301    38.632 is rejected, see bad_region.lst
The star  8335.808    26.376 is rejected, see bad_region.lst
The star  8376.730    31.551 is rejected, see bad_region.lst
The star  7852.234    45.041 is rejected, see bad_region.lst
The star  7604.303    38.207 is rejected, see bad_region.lst
The star  7734.935    89.437 is rejected, see bad_region.lst
The star  8460.719   116.440 is rejected, see bad_region.lst
The star  7667.540   112.587 is rejected, see bad_region.lst
The star  7624.292   135.637 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 9803
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 2
 * rejected inside rectangles defined in bad_region.lst: 92
 * rejected close to frame edge: 61
 * 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): 34
 * 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'.
     9803 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000081, number_of_ambiguous_matches=6 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=9680 inliers=9680 rms 0.78 -> 0.29 pix, max corner correction 12.2 pix] fraction_of_ambiguous_matches= 0.000081, number_of_ambiguous_matches=6 
9678 * matched, [CVPOLY iter 2: order=1 pairs=9678 inliers=9678 rms 0.25 -> 0.25 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000081, number_of_ambiguous_matches=6 
9678 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=9678 inliers=9678 rms 0.25 -> 0.25 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000067, number_of_ambiguous_matches=5 
9674 * matched (3rd iteration). Success!
  rotation [degrees] =   0.775
     9803 stars detected,  9674 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 8233, N_manually_selected_comparison_stars = 0
Using 8233 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 6946 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00014*X_pix +0.00014*Y_pix -0.80858
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 6946 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.65
 ERROR!!! Magnitude calibration failure. Dropping image. 
    74425 objects stored in memory (1000000 max.)
memory:  242540 kB used, 286920 kB peak, 65263848 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 1 seconds
Done with measurements! =)

Total number of measurements 136709 (136709 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 16342 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 14926 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  8284 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  7692 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for 15040 stars

done!  =)
TIMING select_aperture: 1 seconds
Computing lightcurve statistics...  Will not compute variability indexes for objects having <1 points in lightcurve
You may disable this by commenting out the line '#define DROP_LIGHTCURVES_WITH_SMALL_NUMBER_OF_POINTS_FROM_ALL_PLOTS' in src/vast_limits.h an re-compiling VaST with 'make'

Computing, please wait a bit
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
vast_lightcurve_statistics.log: 62035 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)
_____________________
SExtractor catalog cache: saved Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits.cat to cache
SExtractor catalog cache: saved Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
Last  image: 2461260.89286141 08.08.2026 09:25:33.226 UTC
ERROR running VaST on the field Her-03-Q2b1x1 (less than 4 images processed)
exp_start= 18.07.2026 05:53:52.921  exp=   20.000  JD= 2461239.74586714  ap=  4.7  rotation=   0.000  *detected= 68331  *matched= 68331  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-53-52_20.00sec_4.90C_LIGHT_0206.fits
exp_start= 18.07.2026 05:54:56.757  exp=   20.000  JD= 2461239.74660598  ap=  4.6  rotation=   0.005  *detected= 68378  *matched= 62284  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Her-03-Q2b1x1_2026-07-18_00-54-56_20.00sec_5.00C_LIGHT_0207.fits
exp_start= 08.08.2026 09:25:33.226  exp=   20.000  JD= 2461260.89286141  ap=  4.7  rotation=   0.791  *detected= 10076  *matched=  9952  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-25-33_20.00sec_-0.00C_LIGHT_0251.fits
exp_start= 08.08.2026 09:26:31.533  exp=   20.000  JD= 2461260.89353626  ap=  4.7  rotation=   0.775  *detected=  9803  *matched=  9674  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-08_CI_Her-03-Q2b1x1_042929_TTUQ2b1x1_536368_B6z7Hm5Y/fd_Her-03-Q2b1x1_2026-08-08_04-26-31_20.00sec_-0.00C_LIGHT_0252.fits
########### Completed Her-03-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  8 04:31:26 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 9s (0.15 min)
FIELD_Her-03-Q2b1x1: 23s (0.38 min)
=======================================
TOTAL_RUNTIME: 39s (0.65 min)
Finished: Sat Aug  8 04:32:05 CDT 2026