FITS images used in this processing run:

Field UMa-02-Q2b1x1 reference image: UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Field UMa-02-Q2b1x1 reference image: UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
Field UMa-02-Q2b1x1 second-epoch image: UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
Field UMa-02-Q2b1x1 second-epoch image: UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461082.80383981 11.02.2026 07:17:21.760   /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
First image: 2461082.80383981 11.02.2026 07:17:21.760   /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Last  image: 2461268.88824690 16.08.2026 09:18:54.532   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 1
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.51
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):  7148
Objects passed selection criteria:  7089
Measurements per detected object (mean, median, min, max):    2.2    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.2    2.0    2    4
Average stars detected per image: 4240
Average stars matched: 3901.25 (92.0106 %)
Memory usage VmPeak:   233556 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 04:28:56 CDT 2026
Host name: tau
############################################################
WARNING: VaST exited with code 1 on the field UMa-02-Q2b1x1 after completing the measurements (memory cleanup crash); the transient search continues.
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 2
Ref.  image: 2461082.80383981 11.02.2026 07:17:21.760   /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
First image: 2461082.80383981 11.02.2026 07:17:21.760   /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Last  image: 2461082.80432022 11.02.2026 07:18:03.267   /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.19
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  39130
Objects passed selection criteria:  38912
Measurements per detected object (mean, median, min, max):    2.0    2.0    2    2
Measurements per selected object (mean, median, min, max):    2.0    2.0    2    2
Average stars detected per image: 42158
Average stars matched: 40645 (96.4111 %)
Memory usage VmPeak:   266120 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 04:29:32 CDT 2026
Host name: tau
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
UMa-02-Q2b1x1
#######################################
########### Starting UMa-02-Q2b1x1 ###########
Processing UMa-02-Q2b1x1
server tau has sufficient free disk space available: 870362 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 870362 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.png' -> 'transient_report/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits_preview.png'

UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits


renamed 'UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.png' -> 'transient_report/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits_preview.png'

UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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= 521.0909
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 558.9001
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1576.3783
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 366.3941
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1577.1008
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 367.3208
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.02515
INFO:                  SECOND_EPOCH__SD_ratio= 0.003
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 =     24.3500003814697 / [degC] Focuser temperature
AMBTEMP =                 24.3 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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= '2026-08-16T04:18:15.8260204' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T09:18:15.8260204' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.3876831713 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T09:18:25.7260143' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61268.3877977547 / 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      =     128.567464432725 / [deg] RA of telescope" status=0
Record 32: "DEC     =     62.0000843939034 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.8586111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     23.0113888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.84489954483811 / 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-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '08 34 17'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 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  =                20439 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20439 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     24.3500003814697 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     24.3500003814697 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 56.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 24.3 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 39.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.800544 / [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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/d_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits :)

Spent 0.474720 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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/d_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     24.4300003051758 / [degC] Focuser temperature
AMBTEMP =                 24.3 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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= '2026-08-16T04:18:54.5324106' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T09:18:54.5324106' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.3881311575 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T09:19:04.4327574' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61268.3882457409 / 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      =     128.567464403472 / [deg] RA of telescope" status=0
Record 32: "DEC     =     62.0000844255381 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9102777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =              23.0675 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.83227029152179 / 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-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '08 34 17'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 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  =                20439 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20439 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     24.4300003051758 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     24.4300003051758 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 56.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.49 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 24.3 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 74.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            11.200896 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.600608 / [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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/d_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits :)

Spent 0.467238 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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/d_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits



fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
  
SExtractor catalog cache: saved UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.cat to cache
SExtractor catalog cache: saved UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.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/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461268.88779891
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
'asassn_transients_list.txt' -> '../asassn_transients_list.txt'
wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits exists and is non-empty
wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits exists and is non-empty
wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits exists and is non-empty
wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits (1st reference image)
verification OK: wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Image size: 941.7'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 08:34:18.663 +61:59:38.81 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits (1st new image)
verification OK: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
Image size: 939.6'x624.8'  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: 08:34:32.318 +61:59:18.79 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 08:34:18.663 +61:59:38.81
Second-epoch image center 08:34:32.318 +61:59:18.79
Angular distance between the image centers 0.0273 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits (2nd new image)
verification OK: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Image size: 939.6'x624.8'  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: 08:34:33.303 +61:58:51.66 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 08:34:18.663 +61:59:38.81
Second-epoch image center 08:34:33.303 +61:58:51.66
Angular distance between the image centers 0.0315 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  08:34:32.318 +61:59:18.79
Second-epoch second image center 08:34:33.303 +61:58:51.66
Angular distance between the image centers 0.00778 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits &> /tmp/tmp.fV0iAIA7NH
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits &> /tmp/tmp.8VaY8gHXLu
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits &> /tmp/tmp.A7ZjdcMs8j
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits &> /tmp/tmp.cpfGMjM8V3
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits and wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits and wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat 
Found non-empty wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits and wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat
The reference image (wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits) and catalog (wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat) found
'wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat' -> 'wcsmag.cat'
Read 9619 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 109.7385 to 148.5418 deg, Dec +55.4555 to +67.4100 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 109.7385 to 148.5418 deg, Dec 55.4555 to 67.4100 deg
Loaded 8849 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 5401 out of 5701 total matches.
Matched with Tycho-2 5701 out of 9619 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.861600
a=0.000000 b=1.000000 c=22.861600
From vast_summary.log: estimated ref. image limiting mag.:  -7.51
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.35

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.35

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 9619 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 109.7385 to 148.5418 deg, Dec +55.4555 to +67.4100 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 109.7385 to 148.5418 deg, Dec 55.4555 to 67.4100 deg
Loaded 8849 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 5401 out of 5701 total matches.
Matched with Tycho-2 5701 out of 9619 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Forced-photometry filter: calibrated wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits -> calib.txt_param_ref_wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits (aperture=6.1)
Read 9596 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 109.7385 to 148.5413 deg, Dec +55.4555 to +67.4099 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 109.7385 to 148.5413 deg, Dec 55.4555 to 67.4099 deg
Loaded 8848 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 5383 out of 5695 total matches.
Matched with Tycho-2 5695 out of 9596 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
Forced-photometry filter: calibrated wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits -> calib.txt_param_ref_wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits (aperture=6.1)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
 2.2 pix  UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
 2.2 pix  fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
 2.2 pix  fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Limiting magnitude estimates:
 15.4 mag.  UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
 15.3 mag.  UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
 12.6 mag.  fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
 12.7 mag.  fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
All-image limiting magnitude estimate:  12.6 (SNR )  10.4 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.fV0iAIA7NH (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits' -> 'wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
WCS_IMAGE_NAME=wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
WCS-calibrated image found: wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Checking if the catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat corresponding to the image wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits alredy exist and is non-empty...
Catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat corresponding to the image wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
WCS catalog name: wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat 
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).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=686, bad_region=2890, passed=9619
Got 9619 stars (including 6229 good ones) from the SExtractor catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat 
util/solve_plate_with_UCAC5 got 9619 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 727 to 789 (Dec 55.5 to 67.4)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 4887 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 7340 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 727 to 789 (Dec 55.5 to 67.4)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 7340 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 7340 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4887 stars left (next iteration limit 5375)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits N_match=4887 sigma_overall_arcsec=0.392 sigma_q1_arcsec=0.513 sigma_q2_arcsec=0.393 sigma_q3_arcsec=0.352 sigma_q4_arcsec=0.325 n_q1=1411 n_q2=1074 n_q3=1431 n_q4=971 worst_quadrant_to_overall_ratio=1.308
The image catalog is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits -region wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.8VaY8gHXLu (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits' -> 'wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
WCS_IMAGE_NAME=wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
WCS-calibrated image found: wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
Checking if the catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat corresponding to the image wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits alredy exist and is non-empty...
Catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat corresponding to the image wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
WCS catalog name: wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat 
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).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=696, bad_region=2860, passed=9596
Got 9596 stars (including 6227 good ones) from the SExtractor catalog wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat 
util/solve_plate_with_UCAC5 got 9596 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 727 to 789 (Dec 55.5 to 67.4)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 4890 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 7330 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 727 to 789 (Dec 55.5 to 67.4)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 7330 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 7330 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4890 stars left (next iteration limit 5379)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits N_match=4890 sigma_overall_arcsec=0.407 sigma_q1_arcsec=0.525 sigma_q2_arcsec=0.396 sigma_q3_arcsec=0.360 sigma_q4_arcsec=0.335 n_q1=1415 n_q2=1074 n_q3=1421 n_q4=980 worst_quadrant_to_overall_ratio=1.291
The image catalog is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits -region wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.A7ZjdcMs8j (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
WCS_IMAGE_NAME=wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
WCS-calibrated image found: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
Checking if the catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat corresponding to the image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat corresponding to the image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
WCS catalog name: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat 
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).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=135, bad_region=72, passed=1886
Got 1886 stars (including 1684 good ones) from the SExtractor catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat 
util/solve_plate_with_UCAC5 got 1886 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.6'
Seting catalog search parameters based on the expected field of view 939.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013050 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010440 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.8 to 67.2)
Done reading UCAC5 zone files...
Matched 1637 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1635 matched stars entering correct_measured_positions(), 1621 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1635 matched stars entering correct_measured_positions(), 1807 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.8 to 67.2)
Done reading UCAC5 zone files...
Matched 1636 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1635 matched stars entering correct_measured_positions(), 1807 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Accuracy estimation diagnostic: 1635 matched stars entering correct_measured_positions(), 1807 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 1635 stars left (next iteration limit 1798)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: the 1635 catalog matches do not cover the frame (590/58/790/197 per quadrant, need 102 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits N_match=1635 sigma_overall_arcsec=0.495 sigma_q1_arcsec=0.494 sigma_q2_arcsec=0.837 sigma_q3_arcsec=0.482 sigma_q4_arcsec=0.541 n_q1=590 n_q2=58 n_q3=790 n_q4=197 worst_quadrant_to_overall_ratio=1.692
The image catalog is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits -region wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.cpfGMjM8V3 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
WCS_IMAGE_NAME=wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
WCS-calibrated image found: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Checking if the catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat corresponding to the image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat corresponding to the image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
WCS catalog name: wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat 
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).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=113, bad_region=59, passed=1843
Got 1843 stars (including 1672 good ones) from the SExtractor catalog wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat 
util/solve_plate_with_UCAC5 got 1843 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.6'
Seting catalog search parameters based on the expected field of view 939.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013050 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010440 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.8 to 67.2)
Done reading UCAC5 zone files...
Matched 1625 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1624 matched stars entering correct_measured_positions(), 1610 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1624 matched stars entering correct_measured_positions(), 1774 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.8 to 67.2)
Done reading UCAC5 zone files...
Matched 1625 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1624 matched stars entering correct_measured_positions(), 1772 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Accuracy estimation diagnostic: 1624 matched stars entering correct_measured_positions(), 1772 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 1624 stars left (next iteration limit 1786)
Stop iterations.


 The field is successfully solved and matched with the astrometric catalog! :)

SIP_REFIT: the 1624 catalog matches do not cover the frame (591/64/775/194 per quadrant, need 101 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits N_match=1624 sigma_overall_arcsec=0.495 sigma_q1_arcsec=0.506 sigma_q2_arcsec=0.674 sigma_q3_arcsec=0.478 sigma_q4_arcsec=0.488 n_q1=591 n_q2=64 n_q3=775 n_q4=194 worst_quadrant_to_overall_ratio=1.362
The image catalog is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits -region wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Saving the final (post-refit) wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits to local_wcs_cache/
'wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits' -> 'local_wcs_cache/wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits'
Saving the final (post-refit) wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits to local_wcs_cache/
'wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits' -> 'local_wcs_cache/wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits'
Saving the final (post-refit) wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits to local_wcs_cache/
'wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits' -> 'local_wcs_cache/wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits'
Saving the final (post-refit) wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits to local_wcs_cache/
'wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits' -> 'local_wcs_cache/wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits sigma_overall=0.392 worst_q_ratio=1.308
ref2=UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits sigma_overall=0.407 worst_q_ratio=1.291
new1=fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits sigma_overall=0.495 worst_q_ratio=1.692
new2=fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits sigma_overall=0.495 worst_q_ratio=1.362
reference average sigma_overall=0.3995 worst_q_ratio=1.2995
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302_astrometric_residuals.png (4887 matched stars from wcs_UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303_astrometric_residuals.png (4890 matched stars from wcs_UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454_astrometric_residuals.png (1635 matched stars from wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.44 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455_astrometric_residuals.png (1624 matched stars from wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.43 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits'
Saving fully-calibrated image wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/wcs_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits'
Preparing the HTML report for the field UMa-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 0s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 21222_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455
The candidate 21222_fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455 did not pass the final checks
Discovery image 2     2026 08 16.38825    2461268.88825    10.59    07:54:27.20 +65:18:52.1   2365 5522   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits

**** FOUND  07:54:27.22 +65:18:52.4 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 0s
Prepared the HTML report for the field UMa-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
  
Last  image: 2461268.88779891 16.08.2026 09:18:15.826 UTC
WARNING: VaST exited with code 1 on the field UMa-02-Q2b1x1 AFTER completing the measurements. This is a memory-management crash during cleanup (a VaST bug to report), NOT a wrong field / clouds / bad focus. The lightcurves were written, so the transient search continues.
____ VaST output (crashed during memory cleanup; the measurements above are complete) ____

--==VaST 1.0rc90==--

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

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.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-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg)...  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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits catalog from cache
SExtractor catalog cache: restored UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.3,5.2,5.7,6.2 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits


Done with SExtractor!

TIMING SExtractor: 4 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-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.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: 2026-02-11T07:17:21.7607716
Setting observation time using DATE-OBS keyword: 2026-02-11T07:17:21.7607716

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-02-11T07:17:21.760
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
Exposure 20 sec, 11.02.2026 07:17:21.760 UTC = JD(UTC) 2461082.80383981 mid. exp.
The reference image star  8797.536    22.663 is rejected, see bad_region.lst
The reference image star  8100.444    17.837 is rejected, see bad_region.lst
The reference image star  7896.823    16.675 is rejected, see bad_region.lst
The reference image star  9515.733    15.411 is rejected, see bad_region.lst
The reference image star  9435.724    13.305 is rejected, see bad_region.lst
The reference image star  7730.552     9.692 is rejected, see bad_region.lst
The reference image star  9321.132    10.879 is rejected, see bad_region.lst
The reference image star  9145.871    11.491 is rejected, see bad_region.lst
The reference image star  9007.327    10.529 is rejected, see bad_region.lst
The reference image star  9446.794    10.958 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: 42160, (42159 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 17
 * rejected inside rectangles defined in bad_region.lst: 14272
 * rejected close to frame edge: 179
 * 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): 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'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.19
Detection limit from the magnitude-SNR relation= -7.2  (5.0 sigma detection)
The simple faintest star detection limit= -6.5
80 percent brightest stars detection limit= -7.7
Selected detection limit= -7.7
Final detection limit= -7.7 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.7 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): 28
 * 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'.
    42156 * detected, using  499/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.015987, number_of_ambiguous_matches=674 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=39167 inliers=39167 rms 0.38 -> 0.38 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.015987, number_of_ambiguous_matches=674 
39167 * matched, [CVPOLY iter 2: order=1 pairs=39167 inliers=39167 rms 0.38 -> 0.38 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.010009, number_of_ambiguous_matches=422 
39154 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=39154 inliers=39154 rms 0.31 -> 0.31 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.004649, number_of_ambiguous_matches=196 
39130 * matched (3rd iteration). Success!
  rotation [degrees] =   0.010
    42156 stars detected, 39130 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 36948, N_manually_selected_comparison_stars = 0
Using 36948 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 36947 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00000*Y_pix -0.00098
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 35125 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.19
    45186 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  231472 kB used, 266120 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.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: 2026-08-16T09:18:15.8260204
Setting observation time using DATE-OBS keyword: 2026-08-16T09:18:15.8260204

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-16T09:18:15.826
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
The star  8570.352   172.700 is rejected, see bad_region.lst
The star  7654.241   163.795 is rejected, see bad_region.lst
The star  9342.995   217.997 is rejected, see bad_region.lst
The star  7814.119   234.633 is rejected, see bad_region.lst
The star  8889.010   242.998 is rejected, see bad_region.lst
The star  9144.002   307.995 is rejected, see bad_region.lst
The star  8407.001   368.012 is rejected, see bad_region.lst
The star  8900.012   510.001 is rejected, see bad_region.lst
The star  8326.973   788.956 is rejected, see bad_region.lst
The star  8907.420  1111.148 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 12736
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 3
 * rejected inside rectangles defined in bad_region.lst: 461
 * rejected close to frame edge: 54
 * 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): 142
 * 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'.
    12736 * detected, using  151/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000089, number_of_ambiguous_matches=4 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=7042 inliers=7042 rms 1.04 -> 0.46 pix, max corner correction 15.7 pix] fraction_of_ambiguous_matches= 0.000111, number_of_ambiguous_matches=5 
7042 * matched, [CVPOLY iter 2: order=1 pairs=7042 inliers=7042 rms 0.44 -> 0.44 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000066, number_of_ambiguous_matches=3 
7034 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=7034 inliers=7034 rms 0.32 -> 0.32 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000022, number_of_ambiguous_matches=1 
7026 * matched (3rd iteration). Success!
  rotation [degrees] = -171.789
    12736 stars detected,  7026 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 6280, N_manually_selected_comparison_stars = 0
Using 6280 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 5761 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00024*X_pix -0.00017*Y_pix -0.20838
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 5761 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.62
 ERROR!!! Magnitude calibration failure. Dropping image. 
    45186 objects stored in memory (1000000 max.)
memory:  221304 kB used, 266120 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.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: 2026-08-16T09:18:54.5324106
Setting observation time using DATE-OBS keyword: 2026-08-16T09:18:54.5324106

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-16T09:18:54.532
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
The star  8569.651   177.183 is rejected, see bad_region.lst
The star  7653.361   168.219 is rejected, see bad_region.lst
The star  7700.167   192.630 is rejected, see bad_region.lst
The star  9342.997   218.003 is rejected, see bad_region.lst
The star  7813.588   238.786 is rejected, see bad_region.lst
The star  8889.004   243.000 is rejected, see bad_region.lst
The star  9144.004   307.992 is rejected, see bad_region.lst
The star  8407.019   367.986 is rejected, see bad_region.lst
The star  8899.990   510.033 is rejected, see bad_region.lst
The star  8186.415   609.718 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 12832
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 5
 * rejected inside rectangles defined in bad_region.lst: 421
 * rejected close to frame edge: 70
 * 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): 18
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    12832 * detected, using  152/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000089, number_of_ambiguous_matches=4 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=7165 inliers=7165 rms 0.96 -> 0.37 pix, max corner correction 15.8 pix] fraction_of_ambiguous_matches= 0.000089, number_of_ambiguous_matches=4 
7165 * matched, [CVPOLY iter 2: order=1 pairs=7165 inliers=7165 rms 0.35 -> 0.35 pix, max corner correction 0.1 pix] fraction_of_ambiguous_matches= 0.000066, number_of_ambiguous_matches=3 
7159 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=7159 inliers=7159 rms 0.27 -> 0.27 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000066, number_of_ambiguous_matches=3 
7155 * matched (3rd iteration). Success!
  rotation [degrees] = -171.790
    12832 stars detected,  7155 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 6397, N_manually_selected_comparison_stars = 0
Using 6397 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 5826 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00024*X_pix -0.00017*Y_pix -0.20326
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
ERROR in magnitude calibration: fabs(lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 5826 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.59
 ERROR!!! Magnitude calibration failure. Dropping image. 
    45186 objects stored in memory (1000000 max.)
memory:  221304 kB used, 266120 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 84316 (84316 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  6224 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 10808 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  5624 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  5601 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for 10873 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: 38912 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)
_____________________
SExtractor catalog cache: saved UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits.cat to cache
SExtractor catalog cache: saved UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
Last  image: 2461268.88779891 16.08.2026 09:18:15.826 UTC
ERROR running VaST on the field UMa-02-Q2b1x1 (less than 4 images processed)
exp_start= 11.02.2026 07:17:21.760  exp=   20.000  JD= 2461082.80383981  ap=  4.7  rotation=   0.000  *detected= 42160  *matched= 42160  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-17-21_20.00sec_-14.90C_LIGHT_0302.fits
exp_start= 11.02.2026 07:18:03.267  exp=   20.000  JD= 2461082.80432022  ap=  4.7  rotation=   0.010  *detected= 42156  *matched= 39130  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-02-Q2b1x1_2026-02-11_01-18-03_20.00sec_-15.00C_LIGHT_0303.fits
exp_start= 16.08.2026 09:18:15.826  exp=   20.000  JD= 2461268.88779891  ap=  4.8  rotation= -171.789  *detected= 12736  *matched=  7026  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-15_20.00sec_-0.00C_LIGHT_0454.fits
exp_start= 16.08.2026 09:18:54.532  exp=   20.000  JD= 2461268.88824690  ap=  4.7  rotation= -171.790  *detected= 12832  *matched=  7155  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-02-Q2b1x1_042642_TTUQ2b1x1_2990236_aBzWz6Sg/fd_UMa-02-Q2b1x1_2026-08-16_04-18-54_20.00sec_-0.00C_LIGHT_0455.fits
########### Completed UMa-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
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461268.88779891 -observatory V36
08:57:18.94 +18:27:12.9 Mercury (-1.4mag)
12:30:47.76 -04:59:12.2 Venus (-4.4mag)
06:12:52.29 +23:42:29.6 Mars (1.3mag)
08:50:14.79 +18:13:38.0 Jupiter (-1.8mag)
00:55:38.32 +03:08:13.4 Saturn (0.6mag)
04:12:34.04 +20:59:06.8 Uranus (5.7mag)
00:15:34.63 +00:09:23.6 Neptune (7.7mag)
20:27:22.53 -23:33:11.6 Pluto (14.5mag)
12:31:17.11 -07:34:29.4 Moon (-9.3mag)
-rw-r--r-- 1 apache apache 362 Aug 16 04:28 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461268.88779891:
08:50:18.79 +18:13:21.7 Io (6.1mag)
08:50:20.07 +18:13:14.8 Europa (6.3mag)
08:50:28.02 +18:12:37.1 Ganymede (5.6mag)
08:50:14.90 +18:13:35.4 Callisto (6.8mag)
08:47:43.05 +18:18:01.1 Himalia (15.7mag)
08:50:12.86 +18:13:47.1 Thebe (16.6mag)
08:47:19.88 +18:14:57.7 Elara (17.7mag)
08:54:23.52 +17:49:24.0 Pasiphae (17.9mag)
08:52:52.65 +18:25:45.9 Carme (19.0mag)
00:55:48.83 +03:07:46.6 Titan (8.4mag)
00:55:35.81 +03:07:57.2 Rhea (9.7mag)
00:56:07.06 +03:08:43.0 Iapetus (11.1mag)
00:55:51.19 +03:07:38.2 Hyperion (14.4mag)
00:54:50.40 +03:00:21.8 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 16 04:29 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461268.88779891:
19:38:54.84 -18:19:36.1 JWST
16:10:21.50 +47:40:20.5 Chandra
11:15:47.76 -60:08:11.4 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 16 04:28 spacecraft.txt
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Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461268.88779891 -observatory V36
03:22:29.16 +18:01:24.1 17.6mag P/1996 R2 (Lagerkvist)
18:00:10.13 -34:33:14.7 14.1mag P/2010 H2 (Vales)
07:01:15.26 -69:13:30.1 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:11:51.10 +33:10:15.3 17.7mag C/2017 K2 (PANSTARRS)
04:06:28.12 +40:43:57.5 17.2mag P/2021 N1 (ZTF)
22:31:48.14 +30:53:06.1 17.3mag C/2022 E2 (ATLAS)
06:51:25.06 +26:23:43.8 16.8mag C/2022 N2 (PANSTARRS)
10:29:08.98 +28:06:27.2 17.0mag C/2022 QE78 (ATLAS)
09:34:19.94 +05:18:33.2 17.9mag C/2022 R6 (PANSTARRS)
15:14:06.17 -12:37:03.0 17.9mag P/2023 B1 (PANSTARRS)
21:00:19.45 +64:59:06.8 17.9mag C/2023 H5 (Lemmon)
15:40:35.96 -13:41:28.9 14.5mag C/2023 R1 (PANSTARRS)
08:17:02.76 +31:43:20.5 15.4mag C/2024 E1 (Wierzchos)
15:05:58.75 +15:33:35.9 17.8mag C/2024 G6 (ATLAS)
18:53:17.54 +43:24:54.0 13.7mag C/2024 J3 (ATLAS)
20:58:28.43 +49:35:01.5 17.5mag C/2024 R4 (PANSTARRS)
05:21:28.18 -12:54:16.2 15.4mag C/2024 T5 (ATLAS)
07:01:17.74 +22:42:02.2 17.9mag C/2025 J1 (Borisov)
10:44:29.04 +20:22:19.5 17.2mag C/2025 V2 (Rankin)
13:03:17.15 +01:47:20.5 16.9mag C/2025 Y1 (ATLAS)
16:04:51.53 +76:59:27.4 16.6mag C/2026 A2 (Bok)
03:09:35.67 +46:18:50.5 17.2mag C/2026 B2 (Sun-Gao)
11:53:39.54 +09:22:29.2 17.4mag A/2026 E1
22:06:48.86 -30:26:44.4 7.0mag 10P/Tempel
11:33:56.93 -03:55:07.5 16.3mag 29P/Schwassmann-Wachmann
11:24:18.73 +01:58:09.8 17.3mag 63P/Wild
00:53:09.91 -05:47:41.8 15.4mag 65P/Gunn
05:53:49.88 +20:29:20.6 13.7mag 78P/Gehrels
20:30:41.59 -24:25:23.6 17.6mag 84P/Giclas
03:07:57.06 +14:13:55.1 16.8mag 88P/Howell
08:16:17.74 +26:30:02.0 16.3mag 93P/Lovas
04:29:44.68 +20:03:44.8 17.4mag 112P/Urata-Niijima
06:23:18.82 +29:16:46.3 16.2mag 114P/Wiseman-Skiff
09:37:45.55 +25:12:49.6 14.9mag 123P/West-Hartley
12:00:12.28 -13:22:37.1 17.2mag 124P/Mrkos
05:48:24.82 +21:07:04.6 16.0mag 128P/Shoemaker-Holt
06:42:16.08 +18:28:03.7 17.9mag 131P/Mueller
00:01:34.77 +03:16:26.0 17.5mag 139P/Vaisala-Oterma
03:15:45.60 -18:51:17.3 13.3mag 161P/Hartley-IRAS
07:43:59.02 +38:05:28.9 16.0mag 162P/Siding Spring
12:29:22.55 +38:04:01.8 12.0mag 169P/NEAT
02:57:07.22 +09:31:45.7 17.6mag 220P/McNaught
16:46:25.84 -10:41:35.9 17.9mag 235P/LINEAR
20:17:57.81 -52:26:20.0 17.9mag 259P/Garradd
03:45:57.13 +28:31:28.5 15.3mag 260P/McNaught
07:29:49.32 +37:25:53.0 17.3mag 295P/LINEAR
15:13:29.24 +02:13:45.8 17.8mag 391P/Kowalski
09:08:19.50 +17:58:14.3 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 16 04:28 comets.txt
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List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
14:20:14.30 -30:20:51.90  AT2026ktm  2026-05-12.06 17.21
14:41:39.01 -37:13:46.40  AT2026lkm  2026-05-11.18 16.89
12:59:50.45 -10:58:38.80  SN2026kep  2026-05-9.06 17.5
13:37:29.61 -29:50:30.90  AT2026lkd  2026-05-9.09 17.23
09:46:42.01 -14:52:03.60  SN2026kmo  2026-05-8.99 17.51
15:03:05.28 +22:02:03.40  AT2026lxf  2026-05-8.07 13.88
10:23:49.41 -20:57:25.30  ASASSN-26df  2026-05-8.21 16.52
22:14:40.56 +05:04:51.60  2026lda  2026-05-7.56 16.2
21:35:33.81 -14:05:16.30  ASASSN-26de  2026-05-6.29 14.51
16:21:49.13 -61:36:14.60  ASASSN-26dd  2026-05-5.15 15.93
-rw-r--r-- 1 apache apache 5.7K Aug 16 04:28 asassn_transients_list.txt
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Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:42:38.68 +41:15:58.2  PNV J00423868+4115582  2026-06-05.1224  19.97Umag
19:00:42.95 -48:31:01.7  PNV J19004295-4831017  2026-05-25.0752  14.2mag
09:55:21.28 +69:02:52.6  PNV J09552128+6902526  2026-06-13.933  18.9mag
19:51:21.42 +37:06:40.0  TCP J19512142+3706400  2026-06-17.2942  16.8mag
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
-rw-r--r-- 1 apache apache 190K Aug 16 04:28 tocp_transients_list.txt
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Truncated list of recent TNS transients from https://www.wis-tns.org/ :
23:37:50.618 -01:46:17.45  AT 2026wuz  2026-07-25.58 20.15
00:30:26.145 +29:31:04.56  AT 2026wuy  2026-07-23.54 21.23
23:43:45.878 +27:53:57.40  AT 2026wux  2026-07-27.51 20.99
17:05:21.182 +29:02:19.42  AT 2026wuw  2026-03-09.61 21.2
16:00:25.159 +52:39:29.32  AT 2026wuv  2026-05-24.44 21
15:12:38.490 +17:08:40.32  AT 2026wuu  2026-07-06.38 20.78
20:34:48.010 -30:46:06.82  AT 2026wut  2026-07-08.49 20.87
13:24:16.058 -23:32:48.97  AT 2026wus  2026-05-21.31 20.5
15:52:09.810 +21:23:36.58  AT 2026wur  2026-05-19.33 21.14
17:21:27.821 +31:45:59.75  AT 2026wuq  2026-07-24.44 20.99
16:06:39.962 -00:03:48.96  AT 2026wup  2026-07-08.37 20.6
23:36:31.132 -01:42:30.56  AT 2026wuo  2026-07-25.58 21.53
14:58:54.953 +20:56:59.36  AT 2026wun  2026-06-12.38 21.33
13:29:54.424 -08:02:17.84  AT 2026wum  2026-05-12.34 21.76
15:31:56.171 -23:07:56.50  AT 2026wul  2026-07-16.29 21.12
15:50:35.869 +16:13:29.04  AT 2026wuk  2026-06-08.46 20.66
14:46:52.387 +23:41:33.95  AT 2026wuj  2026-07-19.29 20.84
02:33:14.312 +23:53:11.23  AT 2026wui  2026-07-25.60 21.47
23:59:19.033 +30:37:28.65  AT 2026wuh  2026-07-23.54 21.33
16:12:22.633 +29:40:38.32  AT 2026wug  2026-05-17.56 21.06
-rw-r--r-- 1 apache apache 87K Aug 16 04:28 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sun Aug 16 04:28:39 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 21s (0.35 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 5s (0.08 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 30s (0.50 min)
TIMING SExtractor: 4 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 8s (0.13 min)
FIELD_UMa-02-Q2b1x1: 50s (0.83 min)
=======================================
TOTAL_RUNTIME: 53s (0.88 min)
Finished: Sun Aug 16 04:29:32 CDT 2026