FITS images used in this processing run:

Field UMa-09-Q2b1x1 reference image: UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Field UMa-09-Q2b1x1 reference image: UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Field UMa-09-Q2b1x1 second-epoch image: UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Field UMa-09-Q2b1x1 second-epoch image: UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits

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

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.nao.ac.jp
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.nao.ac.jp)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
UMa-09-Q2b1x1
#######################################
########### Starting UMa-09-Q2b1x1 ###########
Processing UMa-09-Q2b1x1
server tau has sufficient free disk space available: 603446 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 603446 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.png' -> 'transient_report/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits_preview.png'

UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits


renamed 'UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.png' -> 'transient_report/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits_preview.png'

UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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= 449.0147
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 524.3424
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 13788.5424
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 3160.7096
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 15597.5615
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 3623.5696
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 30.7084
INFO:                  SECOND_EPOCH__SD_ratio= 0.128
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
ERROR: passing clouds (SD ratio=0.128 soft threshold=0.12)
----------------------------------------------
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 =     21.0200004577637 / [degC] Focuser temperature
AMBTEMP =                 21.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-22T06:25:09.3434483' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-22T11:25:09.3434483' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61274.4758025808 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-22T11:25:19.2453026' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61274.4759171875 / 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      =     143.996720981754 / [deg] RA of telescope" status=0
Record 32: "DEC     =      45.999553997547 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.8686111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.2822222222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.84244854074079 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '09 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 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  =                20452 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20452 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     21.0200004577637 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     21.0200004577637 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 47.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.69 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 21.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 65.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             3.600288 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/d_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits :)

Spent 0.478390 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/d_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     21.1399993896484 / [degC] Focuser temperature
AMBTEMP =                 21.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-22T06:25:49.0941294' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-22T11:25:49.0941294' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61274.4762626621 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-22T11:25:58.9954818' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61274.4763772571 / 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      =     143.996720940735 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9995540304197 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9655555555556 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.3486111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.81885187461676 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '09 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 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  =                20452 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20452 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     21.1399993896484 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     21.1399993896484 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 47.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.69 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 21.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 65.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             3.600288 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/d_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits :)

Spent 0.476588 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/d_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits



fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
  
Last  image: 2461274.97591832 22.08.2026 11:25:09.343 UTC
WARNING: VaST exited with code 1 on the field UMa-09-Q2b1x1 as too few input images were matched to the reference image - wrong pointing? clouds? very bad focus?
Blind plate solve of the unmatched second-epoch image fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
WCS_IMAGE_NAME=wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits was not set. Trying to guess...
The guess is  605 arcmin.
No image with WCS calibration found for /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits .... Determining astrometry method...
Using the local copy of Astrometry.net software...
Choosing aperture...
Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/lib/make_outxyls_for_astrometric_calibration found 144 high-SNR stars for plate solving
 
This service uses tools provided by Astrometry.net.
For more information visit http://astrometry.net/ 

######### Trying to solve plate assuming 605' field of view #########
 /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388    SCALE_LOW=544.5 SCALE_HIGH=3025.0
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out1307672.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out1307672.axy"...
Field 1 did not solve (index index-4119.fits, field objects 1-10).
Field 1 did not solve (index index-4118.fits, field objects 1-10).
Field 1 did not solve (index index-4117.fits, field objects 1-10).
Field 1 did not solve (index index-4116.fits, field objects 1-10).
Field 1 did not solve (index index-4115.fits, field objects 1-10).
  log-odds ratio 23.4778 (1.57132e+10), 11 match, 0 conflict, 32 distractors, 86 index.
  RA,Dec = (143.957,45.9911), pixel scale 5.90721 arcsec/pix.
  Hit/miss:   Hit/miss: ------+---+--++-------++------++------+--++(best)---------------------------------------+-----------------
Field 1: solved with index index-4114.fits.
Field 1 solved: writing to file ./out1307672.solved to indicate this.
Field: out1307672.xyls
Field center: (RA,Dec) = (144.020073, 45.980384) deg.
Field center: (RA H:M:S, Dec D:M:S) = (09:36:04.818, +45:58:49.384).
Field size: 15.7685 x 10.5416 degrees
Field rotation angle: up is -1.55496 degrees E of N
Field parity: neg

Inserting WCS header...  '/data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits' -> 'fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits'
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Aug 22 06:58 fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
-rw-r--r-- 1 apache apache  12K Aug 22 06:58 out1307672.wcs
Inserting WCS header (1st iteration local)...  Opening FITS image file fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits for reading...  done!
Creating new image file (wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits)...  done!
done!
All done!
done
The WCS header appears to be added with no errors in /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits (fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits)
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration01'        / astrometry.net run
Reading input file 1 of 1: "out1307672.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out1307672.axy"...
Only searching for solutions within 15.7083 degrees of RA,Dec (144.021,45.9812)
Field 1 did not solve (index index-4116.fits, field objects 1-100).
  log-odds ratio 91.5397 (5.69125e+39), 19 match, 0 conflict, 38 distractors, 46 index.
  RA,Dec = (144.021,45.9833), pixel scale 5.95181 arcsec/pix.
  Hit/miss:   Hit/miss: -+-+++-+-+----+-+---+---+----++---++--+---+--+-----+----+(best)-------------------------------------------
Field 1: solved with index index-4115.fits.
Field 1 solved: writing to file ./out1307672.solved to indicate this.
Field: out1307672.xyls
Field center: (RA,Dec) = (144.021310, 45.980010) deg.
Field center: (RA H:M:S, Dec D:M:S) = (09:36:05.114, +45:58:48.037).
Field size: 15.7658 x 10.5371 degrees
Field rotation angle: up is -1.55029 degrees E of N
Field parity: neg

WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Aug 22 06:58 fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
-rw-r--r-- 1 apache apache  12K Aug 22 06:58 out1307672.wcs
Inserting WCS header (2nd iteration local)...  Opening FITS image file fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits for reading...  done!
Creating new image file (wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits)...  done!
done!
All done!
The WCS header appears to be added with no errors.
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration02'        / astrometry.net run
The field of view is large: we'll try to run Astromety.net code on the image itself rather than a star list
Reading input file "wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits"...
Found an existing WCS header, will try to verify it.
Extracting sources...
simplexy: found 1565 sources.
Solving...
Reading file "./wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.axy"...
Verifying WCS using indices with quads of size [63.5339, 952.412] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 109.072 (2.34126e+47), 10 match, 0 conflict, 39 distractors, 11 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: --++----+---+---++---------+----+----+----------+(best)---------------------------------------------------
 --> log-odds 109.072
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 190.455 (5.17134e+82), 17 match, 0 conflict, 32 distractors, 24 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: --+++-+-+++++---++---+--+--+----+----+----------+(best)---------------------------------------------------
 --> log-odds 190.455
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 345.643 (1.29018e+150), 33 match, 0 conflict, 98 distractors, 46 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++-+-++++++--+--+-++-+----+----------+--+---+++------+----+-----------------------------+
 --> log-odds 345.643
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 669.652 (6.70293e+290), 70 match, 0 conflict, 177 distractors, 91 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-++-++++-++-+----+--+---+++-+----++++-+--++-----------++--+-+-+--+-++
 --> log-odds 669.652
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1238.55 (inf), 140 match, 0 conflict, 274 distractors, 190 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++--+++-+++--++++-+--++-++---++++-++-++++-+--++++
 --> log-odds 1238.55
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 2191.03 (inf), 275 match, 0 conflict, 638 distractors, 384 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-++++++--++-+++--++++-++-++++++--++++
 --> log-odds 2191.03
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 3683.51 (inf), 483 match, 0 conflict, 571 distractors, 750 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-+++++++-++-+++--+++++++-++++++--++++
 --> log-odds 3683.51
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 5462.59 (inf), 779 match, 0 conflict, 764 distractors, 1458 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-+++++++-++-+++--+++++++-++++++--++++
 --> log-odds 5462.59
Verifying WCS using indices with quads of size [63.5339, 952.412] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 109.072 (2.34126e+47), 10 match, 0 conflict, 39 distractors, 11 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: --++----+---+---++---------+----+----+----------+(best)---------------------------------------------------
 --> log-odds 109.072
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 190.455 (5.17134e+82), 17 match, 0 conflict, 32 distractors, 24 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: --+++-+-+++++---++---+--+--+----+----+----------+(best)---------------------------------------------------
 --> log-odds 190.455
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 345.643 (1.29018e+150), 33 match, 0 conflict, 98 distractors, 46 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++-+-++++++--+--+-++-+----+----------+--+---+++------+----+-----------------------------+
 --> log-odds 345.643
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 669.652 (6.70293e+290), 70 match, 0 conflict, 177 distractors, 91 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-++-++++-++-+----+--+---+++-+----++++-+--++-----------++--+-+-+--+-++
 --> log-odds 669.652
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1238.55 (inf), 140 match, 0 conflict, 274 distractors, 190 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++--+++-+++--++++-+--++-++---++++-++-++++-+--++++
 --> log-odds 1238.55
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 2191.03 (inf), 275 match, 0 conflict, 638 distractors, 384 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-++++++--++-+++--++++-++-++++++--++++
 --> log-odds 2191.03
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 3683.51 (inf), 483 match, 0 conflict, 571 distractors, 750 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-+++++++-++-+++--+++++++-++++++--++++
 --> log-odds 3683.51
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 5462.59 (inf), 779 match, 0 conflict, 764 distractors, 1458 index.
  RA,Dec = (144.02,45.9792), pixel scale 5.9675 arcsec/pix.
  Hit/miss:   Hit/miss: +++++-+-+++++++++++++++-+++++++-+++++++-++++++--+++++++++++++++-+++++++-++-+++--+++++++-++++++--++++
 --> log-odds 5462.59
Got 16 solutions.
Field: wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Field center: (RA,Dec) = (144.022491, 45.980015) deg.
Field center: (RA H:M:S, Dec D:M:S) = (09:36:05.398, +45:58:48.053).
Field size: 15.7487 x 10.5418 degrees
Field rotation angle: up is -1.55234 degrees E of N
Field parity: neg
Creating new FITS file "./wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.new"...

renamed 'wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.new' -> 'wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits'
Checking if the catalog wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Generating wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits.wcscat from image00003.cat
Catalog wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits created.
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Image size: 940.8'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 09:36:05.676 +45:58:51.11 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 147 stars ###
'wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/correct_sextractor_wcs_catalog_usingxy2sky1311294.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
###################################
# Check the image center offset between the reference and the blindly solved unmatched second-epoch image (pointing accuracy)
Reference image center 09:36:00.615 +46:00:07.35
Second-epoch image center 09:36:05.676 +45:58:51.11
Angular distance between the image centers 0.0258 deg.
###################################
The second-epoch image center is consistent with the reference image center (offset 0.0258 deg.) - the star matching failure is probably not a pointing problem
____ VaST output ____

--==VaST 1.0rc90==--

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

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO)...  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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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 UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits catalog from cache
SExtractor catalog cache: restored UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2Parent process says: we are done fork()ing.
b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
The above guess is bWaiting for thread 2 to finish...
ased on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits > image00003.cat.sex_log 2>&1
The gain value (GAIN=0.370) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 6.5,6.5,5.9,7.2,7.8,8.5 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits > image00003.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_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits


Done with SExtractor!

TIMING SExtractor: 2 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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: 2026-01-18T07:44:14.6755773
Setting observation time using DATE-OBS keyword: 2026-01-18T07:44:14.6755773

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-01-18T07:44:14.675
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Exposure 20 sec, 18.01.2026 07:44:14.675 UTC = JD(UTC) 2461058.82250781 mid. exp.
The reference image star  8036.468    37.689 is rejected, see bad_region.lst
The reference image star  8577.530    17.123 is rejected, see bad_region.lst
The reference image star  9099.534    14.130 is rejected, see bad_region.lst
The reference image star  7765.850     6.684 is rejected, see bad_region.lst
The reference image star  9371.993     5.559 is rejected, see bad_region.lst
The reference image star  9018.338     3.596 is rejected, see bad_region.lst
The reference image star  9136.800    18.873 is rejected, see bad_region.lst
The reference image star  9045.746    29.608 is rejected, see bad_region.lst
The reference image star  8540.324    22.332 is rejected, see bad_region.lst
The reference image star  8730.497    28.450 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: 6345, (6344 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: 1783
 * rejected close to frame edge: 37
 * 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): 2
 * 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 not be applied.
get_detection_limit_sn(): Detection limit: -7.42
Detection limit from the magnitude-SNR relation= -7.4  (5.0 sigma detection)
The simple faintest star detection limit= -9.7
80 percent brightest stars detection limit= -10.4
Selected detection limit= -10.4
Final detection limit= -10.4 (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): 1
 * 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'.
     6399 * detected, using  504/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.005157, number_of_ambiguous_matches=33 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=6050 inliers=6050 rms 0.24 -> 0.24 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.002344, number_of_ambiguous_matches=15 
6050 * matched, [CVPOLY iter 2: order=2 pairs=6050 inliers=6050 rms 0.17 -> 0.17 pix, max corner correction 0.2 pix] fraction_of_ambiguous_matches= 0.001563, number_of_ambiguous_matches=10 
6050 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=6050 inliers=6050 rms 0.13 -> 0.13 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.001250, number_of_ambiguous_matches=8 
6049 * matched (3rd iteration). Success!
  rotation [degrees] =  -0.003
     6399 stars detected,  6049 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 5600, N_manually_selected_comparison_stars = 0
Using 5600 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 5599 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.42
     6695 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  200112 kB used, 233072 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.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: 2026-08-22T11:25:09.3434483
Setting observation time using DATE-OBS keyword: 2026-08-22T11:25:09.3434483

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T11:25:09.343
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
The star  7676.173  6030.441 is rejected, see bad_region.lst
The star  7497.702  5747.245 is rejected, see bad_region.lst
The star  8319.827  5410.846 is rejected, see bad_region.lst
SExtractor output filtering results:
 * passed selection: 142
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 3
 * rejected close to frame edge: 2
 * rejected as being too small (<1.6 pix): 0
 * rejected as being too large (>6.5 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 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'.
      142 * detected, using  100/ 142 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=136 inliers=136 rms 1.57 -> 0.24 pix, max corner correction 23.5 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
136 * matched, [CVPOLY iter 2: order=1 pairs=136 inliers=136 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
136 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=136 inliers=136 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
136 * matched (3rd iteration). Success!
  rotation [degrees] =  -2.400
      142 stars detected,   136 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 25, N_manually_selected_comparison_stars = 0
get_detection_limit_sn(): Detection limit: -9.35
 ERROR!!! Magnitude calibration failure. Dropping image. 
     6695 objects stored in memory (1000000 max.)
memory:  199064 kB used, 233072 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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: 2026-08-22T11:25:49.0941294
Setting observation time using DATE-OBS keyword: 2026-08-22T11:25:49.0941294

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T11:25:49.094
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
The star  9289.993  1511.507 is rejected, see bad_region.lst
The star  9198.959  4860.321 is rejected, see bad_region.lst
The star  7499.072  5749.724 is rejected, see bad_region.lst
The star  8321.602  5413.330 is rejected, see bad_region.lst
The star  8506.809  6074.542 is rejected, see bad_region.lst
SExtractor output filtering results:
 * passed selection: 143
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 5
 * rejected close to frame edge: 1
 * 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'.
      143 * detected, using  100/ 143 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=137 inliers=137 rms 2.29 -> 0.24 pix, max corner correction 22.4 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
137 * matched, [CVPOLY iter 2: order=1 pairs=137 inliers=137 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
137 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=137 inliers=137 rms 0.24 -> 0.24 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
137 * matched (3rd iteration). Success!
  rotation [degrees] =  -2.438
      143 stars detected,   137 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 24, N_manually_selected_comparison_stars = 0
get_detection_limit_sn(): Detection limit: -9.39
 ERROR!!! Magnitude calibration failure. Dropping image. 
     6695 objects stored in memory (1000000 max.)
memory:  230668 kB used, 233072 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 12744 (12744 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 0 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  1299 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  1555 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for   670 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  1492 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  1033 stars

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

Computing, please wait a bit
............................................................
vast_lightcurve_statistics.log: 6001 objects, the longest string is 383 bytes.
Allocating memory for resorting the file.



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



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

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

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

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field UMa-09-Q2b1x1 (less than 4 images processed)
exp_start= 18.01.2026 07:44:14.675  exp=   20.000  JD= 2461058.82250781  ap=  6.1  rotation=   0.000  *detected=  6345  *matched=  6345  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
exp_start= 18.01.2026 07:45:00.924  exp=   20.000  JD= 2461058.82304310  ap=  6.1  rotation=  -0.003  *detected=  6399  *matched=  6049  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
exp_start= 22.08.2026 11:25:09.343  exp=   20.000  JD= 2461274.97591832  ap=  6.5  rotation=  -2.400  *detected=   142  *matched=   136  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
exp_start= 22.08.2026 11:25:49.094  exp=   20.000  JD= 2461274.97637840  ap=  6.3  rotation=  -2.438  *detected=   143  *matched=   137  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
  
Last  image: 2461274.97591832 22.08.2026 11:25:09.343 UTC
WARNING: VaST exited with code 1 on the field UMa-09-Q2b1x1 as too few input images were matched to the reference image - wrong pointing? clouds? very bad focus?
____ VaST output ____

--==VaST 1.0rc90==--

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

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO)...  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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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 UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits catalog from cache
SExtractor catalog cache: restored UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
The above guess is based on the non-default gain value specified in default.sex by user
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits > image00003.cat.sex_log 2>&1
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
The above guess is based on the non-default gain value specified in default.sex by user
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.1,5.6,6.0 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.8,4.8,4.3,5.2,5.7,6.2 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.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/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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: 2026-01-18T07:44:14.6755773
Setting observation time using DATE-OBS keyword: 2026-01-18T07:44:14.6755773

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-01-18T07:44:14.675
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Exposure 20 sec, 18.01.2026 07:44:14.675 UTC = JD(UTC) 2461058.82250781 mid. exp.
The reference image star  8036.466    37.691 is rejected, see bad_region.lst
The reference image star  9045.739    29.610 is rejected, see bad_region.lst
The reference image star  8577.526    17.125 is rejected, see bad_region.lst
The reference image star  8501.029    18.901 is rejected, see bad_region.lst
The reference image star  9099.528    14.131 is rejected, see bad_region.lst
The reference image star  7603.047    12.210 is rejected, see bad_region.lst
The reference image star  8387.730    10.833 is rejected, see bad_region.lst
The reference image star  9231.772     9.165 is rejected, see bad_region.lst
The reference image star  8337.749     8.420 is rejected, see bad_region.lst
The reference image star  7765.845     6.688 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: 36204, (36203 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 15
 * rejected inside rectangles defined in bad_region.lst: 7392
 * rejected close to frame edge: 195
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.8 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): 24
 * 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: -7.14
Detection limit from the magnitude-SNR relation= -7.1  (5.0 sigma detection)
The simple faintest star detection limit= -6.5
80 percent brightest stars detection limit= -7.6
Selected detection limit= -7.6
Final detection limit= -7.6 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.8 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): 20
 * 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'.
    36062 * detected, using  498/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.014943, number_of_ambiguous_matches=541 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=33694 inliers=33694 rms 0.39 -> 0.39 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.014335, number_of_ambiguous_matches=519 
33691 * matched, [CVPOLY iter 2: order=1 pairs=33691 inliers=33691 rms 0.37 -> 0.37 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.008369, number_of_ambiguous_matches=303 
33677 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=33677 inliers=33677 rms 0.29 -> 0.29 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.003397, number_of_ambiguous_matches=123 
33656 * matched (3rd iteration). Success!
  rotation [degrees] =  -0.003
    36062 stars detected, 33656 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 31824, N_manually_selected_comparison_stars = 0
Using 31824 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 31822 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00000*X_pix -0.00000*Y_pix -0.00223
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 30336 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.14
    38610 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  226256 kB used, 259308 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.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: 2026-08-22T11:25:09.3434483
Setting observation time using DATE-OBS keyword: 2026-08-22T11:25:09.3434483

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T11:25:09.343
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
The star  7791.659   840.830 is rejected, see bad_region.lst
The star  8905.801  1139.747 is rejected, see bad_region.lst
The star  8842.990  1331.968 is rejected, see bad_region.lst
The star  9287.586  1509.185 is rejected, see bad_region.lst
The star  1122.971  1550.996 is rejected, see bad_region.lst
The star  8086.447  2716.242 is rejected, see bad_region.lst
The star  8149.458  2768.042 is rejected, see bad_region.lst
The star  7833.245  2869.884 is rejected, see bad_region.lst
The star  7661.904  2988.612 is rejected, see bad_region.lst
The star  7615.010  3375.209 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1429
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 1
 * rejected inside rectangles defined in bad_region.lst: 41
 * rejected close to frame edge: 9
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.8 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): 3
 * 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'.
     1429 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=1395 inliers=1395 rms 1.62 -> 0.44 pix, max corner correction 22.9 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1394 * matched, [CVPOLY iter 2: order=1 pairs=1394 inliers=1394 rms 0.34 -> 0.34 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1393 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1393 inliers=1393 rms 0.21 -> 0.21 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1393 * matched (3rd iteration). Success!
  rotation [degrees] =  -2.386
     1429 stars detected,  1393 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 1053, N_manually_selected_comparison_stars = 0
Using 1053 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 908 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00022*X_pix -0.00020*Y_pix +0.21627
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 908 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -8.99
 ERROR!!! Magnitude calibration failure. Dropping image. 
    38610 objects stored in memory (1000000 max.)
memory:  220476 kB used, 259308 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.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: 2026-08-22T11:25:49.0941294
Setting observation time using DATE-OBS keyword: 2026-08-22T11:25:49.0941294

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-22T11:25:49.094
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
The star  7824.116   413.995 is rejected, see bad_region.lst
The star  7794.140   843.205 is rejected, see bad_region.lst
The star  8842.987  1331.980 is rejected, see bad_region.lst
The star  7549.928  1432.762 is rejected, see bad_region.lst
The star  9289.976  1511.484 is rejected, see bad_region.lst
The star  7564.454  2335.388 is rejected, see bad_region.lst
The star  7602.987  2394.841 is rejected, see bad_region.lst
The star  8087.634  2718.652 is rejected, see bad_region.lst
The star  8151.472  2770.162 is rejected, see bad_region.lst
The star  7834.679  2872.155 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 1363
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 43
 * rejected close to frame edge: 5
 * 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): 6
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
     1363 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000026, number_of_ambiguous_matches=1 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=1327 inliers=1327 rms 1.34 -> 0.37 pix, max corner correction 24.1 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1328 * matched, [CVPOLY iter 2: order=1 pairs=1328 inliers=1328 rms 0.37 -> 0.37 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1326 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=1326 inliers=1326 rms 0.23 -> 0.23 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
1326 * matched (3rd iteration). Success!
  rotation [degrees] =  -2.421
     1363 stars detected,  1326 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 997, N_manually_selected_comparison_stars = 0
Using 997 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 883 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00021*X_pix -0.00018*Y_pix +0.18044
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 883 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -9.04
 ERROR!!! Magnitude calibration failure. Dropping image. 
    38610 objects stored in memory (1000000 max.)
memory:  220476 kB used, 259308 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 72266 (72266 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 0 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  5619 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  9720 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  5469 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  4438 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  8410 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: 33489 objects, the longest string is 383 bytes.
Allocating memory for resorting the file.



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



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

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

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

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field UMa-09-Q2b1x1 (less than 4 images processed)
exp_start= 18.01.2026 07:44:14.675  exp=   20.000  JD= 2461058.82250781  ap=  4.8  rotation=   0.000  *detected= 36204  *matched= 36204  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
exp_start= 18.01.2026 07:45:00.924  exp=   20.000  JD= 2461058.82304310  ap=  4.8  rotation=  -0.003  *detected= 36062  *matched= 33656  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
exp_start= 22.08.2026 11:25:09.343  exp=   20.000  JD= 2461274.97591832  ap=  4.8  rotation=  -2.386  *detected=  1429  *matched=  1393  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-09_20.00sec_-0.00C_LIGHT_0276.fits
exp_start= 22.08.2026 11:25:49.094  exp=   20.000  JD= 2461274.97637840  ap=  4.7  rotation=  -2.421  *detected=  1363  *matched=  1326  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-22_CI_UMa-09-Q2b1x1_065420_TTUQ2b1x1_1297181_vthngcRO/fd_UMa-09-Q2b1x1_2026-08-22_06-25-49_20.00sec_-0.00C_LIGHT_0277.fits
########### Completed UMa-09-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
ls: cannot access 'planets.txt': No such file or directory
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT):
ls: cannot access 'moons.txt': No such file or directory
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT):
ls: cannot access 'spacecraft.txt': No such file or directory
############################################################
ls: cannot access 'comets.txt': No such file or directory
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
ls: cannot access 'asassn_transients_list.txt': No such file or directory
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
ls: cannot access 'tocp_transients_list.txt': No such file or directory

=== Transient Factory Profiling ===
Started: Sat Aug 22 06:56:27 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
FIELD_UMa-09-Q2b1x1: 42s (0.70 min)
=======================================
TOTAL_RUNTIME: 131s (2.18 min)
Finished: Sat Aug 22 06:58:38 CDT 2026