FITS images used in this processing run:

Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 3
Ref.  image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
First image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Last  image: 2461348.61158193 04.11.2026 02:40:30.679   /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.29
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 2 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  5830
Objects passed selection criteria:  5783
Measurements per detected object (mean, median, min, max):    2.0    2.0    2    3
Measurements per selected object (mean, median, min, max):    2.0    2.0    2    3
Average stars detected per image: 4107.33
Average stars matched: 4001.33 (97.4193 %)
Memory usage VmPeak:   232836 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.20(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Nov  3 21:07:31 CST 2026
Host name: tau
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=esa_tap (lib/gaia_dr2_cone_search.sh -> ESA Gaia Archive TAP service)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
UMi-02-Q2b1x1
#######################################
########### Starting UMi-02-Q2b1x1 ###########
Processing UMi-02-Q2b1x1
server tau has sufficient free disk space available: 771572 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 771572 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.png' -> 'transient_report/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits_preview.png'

UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits


renamed 'UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.png' -> 'transient_report/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits_preview.png'

UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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= 522.6192
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 519.1383
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 495.0495
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 75.5958
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 484.8180
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 73.6924
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 0.947247
INFO:                  SECOND_EPOCH__SD_ratio= 0.026
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     9.31999969482422 / [degC] Focuser temperature
AMBTEMP =                  9.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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= '2026-11-03T20:40:30.6799964' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-11-04T02:40:30.6799964' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61348.1114661922 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-11-04T02:40:40.5830071' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61348.1115808217 / 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      =     215.998939705999 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9999612013428 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     20.8186111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     342.568888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.79461404700537 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 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  =                20704 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20704 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.31999969482422 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.31999969482422 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  7.3 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 85.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.29 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 17.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/d_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits :)

Spent 0.673605 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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/d_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     9.47999954223633 / [degC] Focuser temperature
AMBTEMP =                  9.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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= '2026-11-03T20:41:23.2942543' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-11-04T02:41:23.2942543' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61348.1120751621 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-11-04T02:41:33.1942036' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61348.1121897455 / 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      =     216.003131020238 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9999545673923 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     20.7644444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     342.624166666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.80146898150211 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 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  =                20704 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20704 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.47999954223633 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.47999954223633 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  7.3 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 85.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.29 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 17.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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
ERROR: The mean value of the dark frame mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit (485.27) is greater than or equal to image mean (484.82) for UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
try_to_calibrate_the_input_frame(): a problem occurred while running util/ccd/ms /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/d_UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
  
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.cat to cache
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
Last  image: 2461348.61158193 04.11.2026 02:40:30.679 UTC
ERROR running VaST on the field UMi-02-Q2b1x1 (less than 4 images processed)
exp_start= 19.04.2026 08:48:47.436  exp=   20.000  JD= 2461149.86733143  ap=  6.3  rotation=   0.000  *detected=  6161  *matched=  6161  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
exp_start= 19.04.2026 08:49:38.883  exp=   20.000  JD= 2461149.86792689  ap=  6.3  rotation=  -0.009  *detected=  6144  *matched=  5830  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
exp_start= 04.11.2026 02:40:30.679  exp=   20.000  JD= 2461348.61158193  ap=  7.4  rotation=   1.186  *detected=    17  *matched=    13  status=OK     /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
exp_start= 04.11.2026 02:41:23.294  exp=   20.000  JD= 2461348.61219090  ap=  7.5  rotation=   1.186  *detected=     8  *matched=     0  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
  
Last  image: 2461348.61158193 04.11.2026 02:40:30.679 UTC
WARNING: VaST exited with code 1 on the field UMi-02-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_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/lib/make_outxyls_for_astrometric_calibration found 2016 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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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: "out3227661.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3227661.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).
Field 1 did not solve (index index-4114.fits, field objects 1-10).
Field 1 did not solve (index index-4113.fits, field objects 1-10).
Field 1 did not solve (index index-4112.fits, field objects 1-10).
Field 1 did not solve (index index-4111.fits, field objects 1-10).
Field 1 did not solve (index index-4110.fits, field objects 1-10).
Field 1 did not solve (index index-4109.fits, field objects 1-10).
Field 1 did not solve (index index-4108.fits, field objects 1-10).
Field 1 did not solve (index index-4119.fits, field objects 11-20).
Field 1 did not solve (index index-4118.fits, field objects 11-20).
Field 1 did not solve (index index-4117.fits, field objects 11-20).
Field 1 did not solve (index index-4116.fits, field objects 11-20).
Field 1 did not solve (index index-4115.fits, field objects 11-20).
Field 1 did not solve (index index-4114.fits, field objects 11-20).
Field 1 did not solve (index index-4113.fits, field objects 11-20).
Field 1 did not solve (index index-4112.fits, field objects 11-20).
Field 1 did not solve (index index-4111.fits, field objects 11-20).
Field 1 did not solve (index index-4110.fits, field objects 11-20).
Field 1 did not solve (index index-4109.fits, field objects 11-20).
Field 1 did not solve (index index-4108.fits, field objects 11-20).
Field 1 did not solve (index index-4119.fits, field objects 30-50).
Field 1 did not solve (index index-4118.fits, field objects 30-50).
Field 1 did not solve (index index-4117.fits, field objects 30-50).
Field 1 did not solve (index index-4116.fits, field objects 30-50).
Field 1 did not solve (index index-4115.fits, field objects 30-50).
Field 1 did not solve (index index-4114.fits, field objects 30-50).
Field 1 did not solve (index index-4113.fits, field objects 30-50).
Field 1 did not solve (index index-4112.fits, field objects 30-50).
Field 1 did not solve (index index-4111.fits, field objects 30-50).
Field 1 did not solve (index index-4110.fits, field objects 30-50).
Field 1 did not solve (index index-4109.fits, field objects 30-50).
Field 1 did not solve (index index-4108.fits, field objects 30-50).
Field: out3227661.xyls
Did not solve (or no WCS file was written).

The field could not be sloved :(
######### Trying to solve plate assuming 1815.0' field of view #########
 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388    SCALE_LOW=1633.5 SCALE_HIGH=9075.0
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out3227661.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3227661.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).
Field 1 did not solve (index index-4114.fits, field objects 1-10).
Field 1 did not solve (index index-4113.fits, field objects 1-10).
Field 1 did not solve (index index-4112.fits, field objects 1-10).
Field 1 did not solve (index index-4111.fits, field objects 1-10).
Field 1 did not solve (index index-4119.fits, field objects 11-20).
Field 1 did not solve (index index-4118.fits, field objects 11-20).
Field 1 did not solve (index index-4117.fits, field objects 11-20).
Field 1 did not solve (index index-4116.fits, field objects 11-20).
Field 1 did not solve (index index-4115.fits, field objects 11-20).
Field 1 did not solve (index index-4114.fits, field objects 11-20).
Field 1 did not solve (index index-4113.fits, field objects 11-20).
Field 1 did not solve (index index-4112.fits, field objects 11-20).
Field 1 did not solve (index index-4111.fits, field objects 11-20).
Field 1 did not solve (index index-4119.fits, field objects 30-50).
Field 1 did not solve (index index-4118.fits, field objects 30-50).
Field 1 did not solve (index index-4117.fits, field objects 30-50).
Field 1 did not solve (index index-4116.fits, field objects 30-50).
Field 1 did not solve (index index-4115.fits, field objects 30-50).
Field 1 did not solve (index index-4114.fits, field objects 30-50).
Field 1 did not solve (index index-4113.fits, field objects 30-50).
Field 1 did not solve (index index-4112.fits, field objects 30-50).
Field 1 did not solve (index index-4111.fits, field objects 30-50).
Field: out3227661.xyls
Did not solve (or no WCS file was written).

The field could not be sloved :(
######### Trying to solve plate assuming 302.5' field of view #########
 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388    SCALE_LOW=272.2 SCALE_HIGH=1512.5
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out3227661.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out3227661.axy"...
Field 1 did not solve (index index-4206-11.fits, field objects 1-10).
Field 1 did not solve (index index-4206-10.fits, field objects 1-10).
Field 1 did not solve (index index-4206-09.fits, field objects 1-10).
Field 1 did not solve (index index-4206-08.fits, field objects 1-10).
Field 1 did not solve (index index-4206-07.fits, field objects 1-10).
Field 1 did not solve (index index-4206-06.fits, field objects 1-10).
Field 1 did not solve (index index-4206-05.fits, field objects 1-10).
Field 1 did not solve (index index-4206-04.fits, field objects 1-10).
Field 1 did not solve (index index-4206-03.fits, field objects 1-10).
Field 1 did not solve (index index-4206-02.fits, field objects 1-10).
Field 1 did not solve (index index-4206-01.fits, field objects 1-10).
Field 1 did not solve (index index-4206-00.fits, field objects 1-10).
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).
Field 1 did not solve (index index-4114.fits, field objects 1-10).
Field 1 did not solve (index index-4113.fits, field objects 1-10).
Field 1 did not solve (index index-4112.fits, field objects 1-10).
Field 1 did not solve (index index-4111.fits, field objects 1-10).
Field 1 did not solve (index index-4110.fits, field objects 1-10).
Field 1 did not solve (index index-4109.fits, field objects 1-10).
Field 1 did not solve (index index-4108.fits, field objects 1-10).
Field 1 did not solve (index index-4107.fits, field objects 1-10).
Field 1 did not solve (index index-4206-11.fits, field objects 11-20).
Field 1 did not solve (index index-4206-10.fits, field objects 11-20).
Field 1 did not solve (index index-4206-09.fits, field objects 11-20).
Field 1 did not solve (index index-4206-08.fits, field objects 11-20).
Field 1 did not solve (index index-4206-07.fits, field objects 11-20).
Field 1 did not solve (index index-4206-06.fits, field objects 11-20).
Field 1 did not solve (index index-4206-05.fits, field objects 11-20).
Field 1 did not solve (index index-4206-04.fits, field objects 11-20).
Field 1 did not solve (index index-4206-03.fits, field objects 11-20).
Field 1 did not solve (index index-4206-02.fits, field objects 11-20).
Field 1 did not solve (index index-4206-01.fits, field objects 11-20).
Field 1 did not solve (index index-4206-00.fits, field objects 11-20).
Field 1 did not solve (index index-4119.fits, field objects 11-20).
Field 1 did not solve (index index-4118.fits, field objects 11-20).
Field 1 did not solve (index index-4117.fits, field objects 11-20).
Field 1 did not solve (index index-4116.fits, field objects 11-20).
Field 1 did not solve (index index-4115.fits, field objects 11-20).
Field 1 did not solve (index index-4114.fits, field objects 11-20).
Field 1 did not solve (index index-4113.fits, field objects 11-20).
Field 1 did not solve (index index-4112.fits, field objects 11-20).
Field 1 did not solve (index index-4111.fits, field objects 11-20).
Field 1 did not solve (index index-4110.fits, field objects 11-20).
Field 1 did not solve (index index-4109.fits, field objects 11-20).
Field 1 did not solve (index index-4108.fits, field objects 11-20).
Field 1 did not solve (index index-4107.fits, field objects 11-20).
Field 1 did not solve (index index-4206-11.fits, field objects 30-50).
Field 1 did not solve (index index-4206-10.fits, field objects 30-50).
Field 1 did not solve (index index-4206-09.fits, field objects 30-50).
Field 1 did not solve (index index-4206-08.fits, field objects 30-50).
Field 1 did not solve (index index-4206-07.fits, field objects 30-50).
Field 1 did not solve (index index-4206-06.fits, field objects 30-50).
Field 1 did not solve (index index-4206-05.fits, field objects 30-50).
Field 1 did not solve (index index-4206-04.fits, field objects 30-50).
Field 1 did not solve (index index-4206-03.fits, field objects 30-50).
Field 1 did not solve (index index-4206-02.fits, field objects 30-50).
Field 1 did not solve (index index-4206-01.fits, field objects 30-50).
Field 1 did not solve (index index-4206-00.fits, field objects 30-50).
Field 1 did not solve (index index-4119.fits, field objects 30-50).
Field 1 did not solve (index index-4118.fits, field objects 30-50).
Field 1 did not solve (index index-4117.fits, field objects 30-50).
Field 1 did not solve (index index-4116.fits, field objects 30-50).
Field 1 did not solve (index index-4115.fits, field objects 30-50).
Field 1 did not solve (index index-4114.fits, field objects 30-50).
Field 1 did not solve (index index-4113.fits, field objects 30-50).
Field 1 did not solve (index index-4112.fits, field objects 30-50).
Field 1 did not solve (index index-4111.fits, field objects 30-50).
Field 1 did not solve (index index-4110.fits, field objects 30-50).
Field 1 did not solve (index index-4109.fits, field objects 30-50).
Field 1 did not solve (index index-4108.fits, field objects 30-50).
Field 1 did not solve (index index-4107.fits, field objects 30-50).
Field: out3227661.xyls
Did not solve (or no WCS file was written).

The field could not be sloved :(
The output plate-solved image wcs_fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits does not exist!
The blind plate solve of the second-epoch image failed - cannot check the telescope pointing (clouds? very bad focus?)
____ VaST output ____

--==VaST 1.0rc90==--

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

Checking the list of input images specified on the command line ...

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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob)...  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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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 UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits catalog from cache
SExtractor catalog cache: restored UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
The above guess is based on the non-default gain value specified in default.sex by user
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 3.1,3.1,2.8,3.4,3.7,4.0 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 3.4,3.4,3.1,3.8,4.1,4.4 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits


Done with SExtractor!

TIMING SExtractor: 20 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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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: 2026-04-19T08:48:47.4361653
Setting observation time using DATE-OBS keyword: 2026-04-19T08:48:47.4361653

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-04-19T08:48:47.436
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Exposure 20 sec, 19.04.2026 08:48:47.436 UTC = JD(UTC) 2461149.86733143 mid. exp.
The reference image star  8319.634    26.017 is rejected, see bad_region.lst
The reference image star  9222.086    28.702 is rejected, see bad_region.lst
The reference image star  7859.269    21.536 is rejected, see bad_region.lst
The reference image star  7946.386    18.126 is rejected, see bad_region.lst
The reference image star  8330.174    13.854 is rejected, see bad_region.lst
The reference image star  9471.113    15.429 is rejected, see bad_region.lst
The reference image star  9473.811    14.262 is rejected, see bad_region.lst
The reference image star  8664.291    14.725 is rejected, see bad_region.lst
The reference image star  7972.118     9.140 is rejected, see bad_region.lst
The reference image star  8500.098     8.199 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: 34645, (34643 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 13
 * rejected inside rectangles defined in bad_region.lst: 6627
 * rejected close to frame edge: 162
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.9 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): 80
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.02
Detection limit from the magnitude-SNR relation= -7.0  (4.0 sigma detection)
The simple faintest star detection limit= -6.7
80 percent brightest stars detection limit= -7.8
Selected detection limit= -7.8
Final detection limit= -7.8 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.9 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): 87
 * 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'.
    34511 * detected, using  498/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.014403, number_of_ambiguous_matches=499 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=32121 inliers=32121 rms 0.58 -> 0.58 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.013249, number_of_ambiguous_matches=459 
32117 * matched, [CVPOLY iter 2: order=1 pairs=32117 inliers=32117 rms 0.56 -> 0.56 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.007822, number_of_ambiguous_matches=271 
32102 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=32102 inliers=32102 rms 0.50 -> 0.50 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.003060, number_of_ambiguous_matches=106 
32087 * matched (3rd iteration). Success!
  rotation [degrees] =  -0.009
    34511 stars detected, 32087 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 30591, N_manually_selected_comparison_stars = 0
Using 30591 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 30588 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix -0.00000*Y_pix +0.00387
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 29108 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.02
    37069 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  217352 kB used, 257804 kB peak, 65261732 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.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: 2026-11-04T02:40:30.6799964
Setting observation time using DATE-OBS keyword: 2026-11-04T02:40:30.6799964

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-11-04T02:40:30.679
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
The star  8882.826    22.011 is rejected, see bad_region.lst
The star  9346.914     7.924 is rejected, see bad_region.lst
The star  9259.810     5.558 is rejected, see bad_region.lst
The star  7516.014     7.014 is rejected, see bad_region.lst
The star  9199.076    17.148 is rejected, see bad_region.lst
The star  8337.229    16.170 is rejected, see bad_region.lst
The star  8190.241    20.076 is rejected, see bad_region.lst
The star  9053.109    31.634 is rejected, see bad_region.lst
The star  8646.141    22.943 is rejected, see bad_region.lst
The star  8644.336    23.312 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 55749
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 98
 * rejected inside rectangles defined in bad_region.lst: 14013
 * rejected close to frame edge: 472
 * rejected as being too small (<0.8 pix): 0
 * rejected as being too large (>3.4 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 182
 * 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'.
    55749 * detected, using  804/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.031965, number_of_ambiguous_matches=1782 
the annealed match radius failed on this field, retrying with the strict radius... fraction_of_ambiguous_matches= 0.001901, number_of_ambiguous_matches=106 
Too few * matched: 2118 < 6928 ! Retrying...
  rotation [degrees] = -84.016
    55749 stars detected,  2118 stars matched
ERROR! Too few stars matched (2118 < 6928) . Wrong match? Skipping file...



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.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: 2026-11-04T02:41:23.2942543
Setting observation time using DATE-OBS keyword: 2026-11-04T02:41:23.2942543

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-11-04T02:41:23.294
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
The star  9541.980    26.985 is rejected, see bad_region.lst
The star  8009.987    11.988 is rejected, see bad_region.lst
The star  7948.961    11.983 is rejected, see bad_region.lst
The star  7707.015    10.973 is rejected, see bad_region.lst
The star  9549.001    10.001 is rejected, see bad_region.lst
The star  8521.003     9.011 is rejected, see bad_region.lst
The star  8083.989     9.010 is rejected, see bad_region.lst
The star  8417.991     8.003 is rejected, see bad_region.lst
The star  7583.000     8.012 is rejected, see bad_region.lst
The star  9039.991     6.996 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 38191
 * rejected as having no flux measurement: 6
 * rejected as having SNR<3.0: 142
 * rejected inside rectangles defined in bad_region.lst: 9839
 * rejected close to frame edge: 197
 * rejected as being too small (<0.8 pix): 0
 * rejected as being too large (>3.1 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): 33
 * 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'.
    38191 * detected, using  551/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.019481, number_of_ambiguous_matches=744 
the annealed match radius failed on this field, retrying with the strict radius... fraction_of_ambiguous_matches= 0.000995, number_of_ambiguous_matches=38 
Too few * matched: 1897 < 6928 ! Retrying...
  rotation [degrees] = -163.705
    38191 stars detected,  1897 stars matched
ERROR! Too few stars matched (1897 < 6928) . Wrong match? Skipping file...
TIMING matching_and_photometry: 1 seconds
Done with measurements! =)

Total number of measurements 69156 (69156 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 1 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  5919 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  9002 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  5527 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  3989 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  7650 stars

done!  =)
TIMING select_aperture: 2 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: 31910 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 UMi-02-Q2b1x1 (less than 4 images processed)
exp_start= 19.04.2026 08:48:47.436  exp=   20.000  JD= 2461149.86733143  ap=  4.9  rotation=   0.000  *detected= 34645  *matched= 34645  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
exp_start= 19.04.2026 08:49:38.883  exp=   20.000  JD= 2461149.86792689  ap=  4.9  rotation=  -0.009  *detected= 34511  *matched= 32087  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
exp_start= 04.11.2026 02:40:30.679  exp=   20.000  JD= 2461348.61158193  ap=  3.4  rotation= -84.016  *detected= 55749  *matched=  2118  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/fd_UMi-02-Q2b1x1_2026-11-03_20-40-30_20.00sec_-0.00C_LIGHT_0130.fits
exp_start= 04.11.2026 02:41:23.294  exp=   20.000  JD= 2461348.61219090  ap=  3.1  rotation= -163.705  *detected= 38191  *matched=  1897  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_UMi-02-Q2b1x1_204302_TTUQ2b1x1_767222_xdkdSXob/UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
Source monitoring: NOT measuring the monitored positions on the field UMi-02-Q2b1x1 - the transient search raised a processing error: ERROR: The mean value of the dark frame mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit (485.27) is greater than or equal to image mean (484.82) for UMi-02-Q2b1x1_2026-11-03_20-41-23_20.00sec_0.00C_LIGHT_0131.fits
Source monitoring: the monitored positions on the field UMi-02-Q2b1x1 are recorded as run_error (rejected by this run, never measured later)
########### Completed UMi-02-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: Tue Nov  3 21:05:27 CST 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
TIMING SExtractor: 20 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
FIELD_UMi-02-Q2b1x1: 204s (3.40 min)
=======================================
TOTAL_RUNTIME: 315s (5.25 min)
Finished: Tue Nov  3 21:10:42 CST 2026