FITS images used in this processing run:

Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461332.85644562 19.10.2026 08:33:06.902   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.25
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: 3 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):  5499
Objects passed selection criteria:  5477
Measurements per detected object (mean, median, min, max):    3.0    3.0    2    4
Measurements per selected object (mean, median, min, max):    3.0    3.0    2    4
Average stars detected per image: 4278.5
Average stars matched: 4191.5 (97.9666 %)
Memory usage VmPeak:   232468 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Oct 19 03:48:30 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461332.85644562 19.10.2026 08:33:06.902   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 16
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -6.97
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: 8 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):  28383
Objects passed selection criteria:  28295
Measurements per detected object (mean, median, min, max):    3.2    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.2    4.0    2    4
Average stars detected per image: 23541.2
Average stars matched: 22694.2 (96.4021 %)
Memory usage VmPeak:   254084 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Oct 19 03:49:09 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=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-04-Q2b1x1
#######################################
########### Starting UMa-04-Q2b1x1 ###########
Processing UMa-04-Q2b1x1
server tau has sufficient free disk space available: 294948 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 294948 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.png' -> 'transient_report/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits_preview.png'

UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits


renamed 'UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.png' -> 'transient_report/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits_preview.png'

UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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= 482.7200
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 528.8252
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1594.3217
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 482.5314
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1592.1623
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 482.0814
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.30279
INFO:                  SECOND_EPOCH__SD_ratio= 0.001
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     9.28999996185303 / [degC] Focuser temperature
AMBTEMP =                  9.6 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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= '2026-10-19T03:32:24.6589213' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-19T08:32:24.6589213' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61332.3558409489 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-19T08:32:34.5621863' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61332.3559555789 / 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      =     179.998690402496 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9997296622202 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =               14.935 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     23.1833333333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.82625719674202 / 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-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [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  =                20665 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20665 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.28999996185303 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.28999996185303 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  4.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.99 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.6 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 31.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/d_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits :)

Spent 0.523292 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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/d_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     9.38000011444092 / [degC] Focuser temperature
AMBTEMP =                  9.6 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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= '2026-10-19T03:33:06.9028169' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-19T08:33:06.9028169' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61332.3563298844 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-19T08:33:16.8043133' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61332.3564444906 / 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      =     179.998690337312 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9997297120314 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =              14.9925 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =               23.245 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.81234599333583 / 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-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [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  =                20665 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20665 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.38000011444092 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.38000011444092 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  4.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.99 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.6 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 31.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/d_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits :)

Spent 0.517067 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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/d_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits



fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Checking WCS cache directory local_wcs_cache
Checking 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: 2461332.85595669
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
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
wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'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: 12:00:03.636 +62:00:23.32 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-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Image size: 940.0'x625.0'  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: 11:59:23.242 +62:02:03.81 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:23.242 +62:02:03.81
Angular distance between the image centers 0.0838 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Image size: 940.0'x625.0'  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: 11:59:23.891 +62:02:39.55 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:23.891 +62:02:39.55
Angular distance between the image centers 0.0864 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  11:59:23.242 +62:02:03.81
Second-epoch second image center 11:59:23.891 +62:02:39.55
Angular distance between the image centers 0.01001 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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.CR4AU3wzsQ
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.M3BjXk35yt
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits &> /tmp/tmp.btP8x4pyAK
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits &> /tmp/tmp.BaRja4u5dG
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 7332 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.4317 deg, Dec +55.2640 to +67.4533 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 159.9729 to 198.4317 deg, Dec 55.2640 to 67.4533 deg
Loaded 6574 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): 3976 out of 4191 total matches.
Matched with Tycho-2 4191 out of 7332 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.890400
a=0.000000 b=1.000000 c=22.890400
From vast_summary.log: estimated ref. image limiting mag.:  -7.25
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.64

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.64

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7332 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.4317 deg, Dec +55.2640 to +67.4533 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 159.9729 to 198.4317 deg, Dec 55.2640 to 67.4533 deg
Loaded 6574 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): 3976 out of 4191 total matches.
Matched with Tycho-2 4191 out of 7332 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (aperture=6.3)
Read 7282 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9723 to 198.4317 deg, Dec +55.3313 to +67.4947 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 159.9723 to 198.4317 deg, Dec 55.3313 to 67.4947 deg
Loaded 6542 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): 3979 out of 4176 total matches.
Matched with Tycho-2 4176 out of 7282 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=6.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.3 pix  fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
 2.4 pix  fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Limiting magnitude estimates:
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 14.6 mag.  fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
 14.6 mag.  fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
All-image limiting magnitude estimate:  14.6 (SNR )  11.6 (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.CR4AU3wzsQ (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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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=506, bad_region=1672, passed=7332
Got 7332 stars (including 5274 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 7332 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (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 0.010466 (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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 4895 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4895 stars left (next iteration limit 5384)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4895 sigma_overall_arcsec=0.383 sigma_q1_arcsec=0.450 sigma_q2_arcsec=0.405 sigma_q3_arcsec=0.341 sigma_q4_arcsec=0.345 n_q1=1452 n_q2=848 n_q3=1641 n_q4=954 worst_quadrant_to_overall_ratio=1.173
WCS_HEADER_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits selection=current_pairs N_selected=4895 N_valid=4895 bias_ra_arcsec=0.001 bias_dec_arcsec=-0.000 median_sep_arcsec=0.318 p95_sep_arcsec=0.792 n_q1=1452 n_q2=848 n_q3=1641 n_q4=954 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.M3BjXk35yt (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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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=494, bad_region=1659, passed=7282
Got 7282 stars (including 5242 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 7282 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (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 0.010464 (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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4903 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 4898 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4903 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4898 stars left (next iteration limit 5387)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4898 sigma_overall_arcsec=0.417 sigma_q1_arcsec=0.480 sigma_q2_arcsec=0.441 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.397 n_q1=1451 n_q2=838 n_q3=1650 n_q4=959 worst_quadrant_to_overall_ratio=1.152
WCS_HEADER_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits selection=current_pairs N_selected=4898 N_valid=4898 bias_ra_arcsec=-0.001 bias_dec_arcsec=-0.003 median_sep_arcsec=0.342 p95_sep_arcsec=0.832 n_q1=1451 n_q2=838 n_q3=1650 n_q4=959 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.btP8x4pyAK (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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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=219, bad_region=662, passed=3610
Got 3610 stars (including 2756 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat 
util/solve_plate_with_UCAC5 got 3610 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.0'
Seting catalog search parameters based on the expected field of view 940.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013056 (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 0.010444 (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 67.3)
Done reading UCAC5 zone files...
Matched 2702 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2697 matched stars entering correct_measured_positions(), 2697 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2697 matched stars entering correct_measured_positions(), 3075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

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 67.3)
Done reading UCAC5 zone files...
Matched 2701 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2697 matched stars entering correct_measured_positions(), 3075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 2697 matched stars entering correct_measured_positions(), 3075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 2697 stars left (next iteration limit 2966)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2697 robust_rms=6.919 arcsec worst_region_rms=9.382 arcsec outer_annulus_rms=9.382 arcsec
SIP_REFIT: SIP order 3 trial: matched=2697 robust_rms=0.647 arcsec worst_region_rms=0.748 arcsec outer_annulus_rms=0.620 arcsec
SIP_REFIT: SIP order 5 trial: matched=2697 robust_rms=0.432 arcsec worst_region_rms=0.517 arcsec outer_annulus_rms=0.470 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2697 robust_rms_before=1.416 arcsec robust_rms_before_corrected=0.381 arcsec robust_rms_after=0.432 arcsec worst_region_rms_before=0.455 worst_region_rms_after=0.517 outer_annulus_rms_before=1.579 outer_annulus_rms_after=0.470
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.455 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits worst_region_rms_kept=0.455 arcsec robust_rms_kept=0.381 arcsec matched=2697
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits N_match=2697 sigma_overall_arcsec=0.390 sigma_q1_arcsec=0.395 sigma_q2_arcsec=0.445 sigma_q3_arcsec=0.367 sigma_q4_arcsec=0.403 n_q1=865 n_q2=395 n_q3=920 n_q4=517 worst_quadrant_to_overall_ratio=1.142
WCS_HEADER_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits selection=current_pairs N_selected=2697 N_valid=2697 bias_ra_arcsec=0.564 bias_dec_arcsec=0.308 median_sep_arcsec=1.256 p95_sep_arcsec=2.683 n_q1=865 n_q2=395 n_q3=920 n_q4=517 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits -region wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.BaRja4u5dG (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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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=221, bad_region=673, passed=3644
Got 3644 stars (including 2779 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat 
util/solve_plate_with_UCAC5 got 3644 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.0'
Seting catalog search parameters based on the expected field of view 940.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013056 (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 0.010444 (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 67.3)
Done reading UCAC5 zone files...
Matched 2724 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2719 matched stars entering correct_measured_positions(), 2719 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2719 matched stars entering correct_measured_positions(), 3107 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

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 67.3)
Done reading UCAC5 zone files...
Matched 2724 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2719 matched stars entering correct_measured_positions(), 3107 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 2719 matched stars entering correct_measured_positions(), 3107 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 2719 stars left (next iteration limit 2990)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2719 robust_rms=7.064 arcsec worst_region_rms=9.569 arcsec outer_annulus_rms=9.569 arcsec
SIP_REFIT: SIP order 3 trial: matched=2719 robust_rms=0.631 arcsec worst_region_rms=0.852 arcsec outer_annulus_rms=0.607 arcsec
SIP_REFIT: SIP order 5 trial: matched=2719 robust_rms=0.439 arcsec worst_region_rms=0.573 arcsec outer_annulus_rms=0.457 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2719 robust_rms_before=1.496 arcsec robust_rms_before_corrected=0.376 arcsec robust_rms_after=0.439 arcsec worst_region_rms_before=0.458 worst_region_rms_after=0.573 outer_annulus_rms_before=1.650 outer_annulus_rms_after=0.457
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.458 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits worst_region_rms_kept=0.458 arcsec robust_rms_kept=0.376 arcsec matched=2719
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits N_match=2719 sigma_overall_arcsec=0.377 sigma_q1_arcsec=0.359 sigma_q2_arcsec=0.477 sigma_q3_arcsec=0.384 sigma_q4_arcsec=0.376 n_q1=878 n_q2=395 n_q3=925 n_q4=521 worst_quadrant_to_overall_ratio=1.265
WCS_HEADER_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits selection=current_pairs N_selected=2719 N_valid=2719 bias_ra_arcsec=0.637 bias_dec_arcsec=0.250 median_sep_arcsec=1.359 p95_sep_arcsec=2.773 n_q1=878 n_q2=395 n_q3=925 n_q4=521 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits -region wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits sigma_overall=0.383 worst_q_ratio=1.173
ref2=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits sigma_overall=0.417 worst_q_ratio=1.152
new1=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits sigma_overall=0.390 worst_q_ratio=1.142
new2=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits sigma_overall=0.377 worst_q_ratio=1.265
reference average sigma_overall=0.4 worst_q_ratio=1.1625
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278_astrometric_residuals.png (4895 matched stars from wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279_astrometric_residuals.png (4898 matched stars from wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480_astrometric_residuals.png (2697 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481_astrometric_residuals.png (2719 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits'
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits'
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMa-04-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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Checking 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
Plate-solving the images
wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'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: 12:00:03.636 +62:00:23.32 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-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Image size: 940.0'x625.0'  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: 11:59:23.242 +62:02:03.81 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:23.242 +62:02:03.81
Angular distance between the image centers 0.0838 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Image size: 940.0'x625.0'  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: 11:59:23.891 +62:02:39.55 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:23.891 +62:02:39.55
Angular distance between the image centers 0.0864 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  11:59:23.242 +62:02:03.81
Second-epoch second image center 11:59:23.891 +62:02:39.55
Angular distance between the image centers 0.01001 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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.dbI4kRbxCs
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.LxG6mWmBjG
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits &> /tmp/tmp.EpMVdDb2wX
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits &> /tmp/tmp.ld4adrlWrI
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 37333 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.6786 deg, Dec +55.2253 to +67.4860 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 159.9729 to 198.6786 deg, Dec 55.2253 to 67.4860 deg
Loaded 6642 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): 3749 out of 4194 total matches.
Matched with Tycho-2 4194 out of 37333 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.782200
a=0.000000 b=1.000000 c=22.782200
From vast_summary.log: estimated ref. image limiting mag.:  -6.97
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.81

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.81

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 37333 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.6786 deg, Dec +55.2253 to +67.4860 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 159.9729 to 198.6786 deg, Dec 55.2253 to 67.4860 deg
Loaded 6642 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): 3749 out of 4194 total matches.
Matched with Tycho-2 4194 out of 37333 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (aperture=5.0)
Read 37494 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9724 to 198.6777 deg, Dec +55.2649 to +67.4946 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 159.9724 to 198.6777 deg, Dec 55.2649 to 67.4946 deg
Loaded 6625 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): 3749 out of 4189 total matches.
Matched with Tycho-2 4189 out of 37494 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=5.0)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 9 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.3 pix  fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
 2.3 pix  fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Limiting magnitude estimates:
 15.8 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.8 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 14.7 mag.  fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
 14.7 mag.  fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
All-image limiting magnitude estimate:  14.7 (SNR )  14.0 (80% of stars)  with default.sex.telephoto_lens_vSTL
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
############ /tmp/tmp.dbI4kRbxCs (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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.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=17, blended=1765, bad_region=7377, passed=37316
Got 37316 stars (including 28488 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 37316 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (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 0.010466 (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 726 to 789 (Dec 55.2 to 67.5)
Done reading UCAC5 zone files...
Matched 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 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 726 to 789 (Dec 55.2 to 67.5)
Done reading UCAC5 zone files...
Matched 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4899 stars left (next iteration limit 5388)
Stop iterations.


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4899 sigma_overall_arcsec=0.367 sigma_q1_arcsec=0.432 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.330 sigma_q4_arcsec=0.338 n_q1=1449 n_q2=842 n_q3=1676 n_q4=932 worst_quadrant_to_overall_ratio=1.178
WCS_HEADER_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits selection=current_pairs N_selected=4899 N_valid=4899 bias_ra_arcsec=0.003 bias_dec_arcsec=-0.001 median_sep_arcsec=0.305 p95_sep_arcsec=0.794 n_q1=1449 n_q2=842 n_q3=1676 n_q4=932 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.LxG6mWmBjG (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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.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=16, blended=1739, bad_region=7420, passed=37478
Got 37478 stars (including 28617 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 37478 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (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 0.010464 (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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 4900 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

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 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4900 stars left (next iteration limit 5390)
Stop iterations.


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4900 sigma_overall_arcsec=0.393 sigma_q1_arcsec=0.451 sigma_q2_arcsec=0.417 sigma_q3_arcsec=0.363 sigma_q4_arcsec=0.362 n_q1=1448 n_q2=847 n_q3=1676 n_q4=929 worst_quadrant_to_overall_ratio=1.148
WCS_HEADER_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits selection=current_pairs N_selected=4900 N_valid=4900 bias_ra_arcsec=0.004 bias_dec_arcsec=-0.008 median_sep_arcsec=0.328 p95_sep_arcsec=0.798 n_q1=1448 n_q2=847 n_q3=1676 n_q4=929 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.EpMVdDb2wX (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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.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=9, blended=581, bad_region=3128, passed=20525
Got 20525 stars (including 16860 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat 
util/solve_plate_with_UCAC5 got 20525 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.0'
Seting catalog search parameters based on the expected field of view 940.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013056 (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 0.010444 (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 67.3)
Done reading UCAC5 zone files...
Matched 4837 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4833 matched stars entering correct_measured_positions(), 4834 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4833 matched stars entering correct_measured_positions(), 18172 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

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 67.3)
Done reading UCAC5 zone files...
Matched 4839 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4834 matched stars entering correct_measured_positions(), 18172 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 4834 matched stars entering correct_measured_positions(), 18172 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4834 stars left (next iteration limit 5316)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4834 robust_rms=6.852 arcsec worst_region_rms=9.535 arcsec outer_annulus_rms=9.535 arcsec
SIP_REFIT: SIP order 3 trial: matched=4834 robust_rms=0.666 arcsec worst_region_rms=0.749 arcsec outer_annulus_rms=0.694 arcsec
SIP_REFIT: SIP order 5 trial: matched=4834 robust_rms=0.459 arcsec worst_region_rms=0.555 arcsec outer_annulus_rms=0.502 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4834 robust_rms_before=1.433 arcsec robust_rms_before_corrected=0.398 arcsec robust_rms_after=0.459 arcsec worst_region_rms_before=0.490 worst_region_rms_after=0.555 outer_annulus_rms_before=1.525 outer_annulus_rms_after=0.502
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.490 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits worst_region_rms_kept=0.490 arcsec robust_rms_kept=0.398 arcsec matched=4834
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits N_match=4834 sigma_overall_arcsec=0.404 sigma_q1_arcsec=0.405 sigma_q2_arcsec=0.460 sigma_q3_arcsec=0.392 sigma_q4_arcsec=0.381 n_q1=1522 n_q2=702 n_q3=1699 n_q4=911 worst_quadrant_to_overall_ratio=1.138
WCS_HEADER_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits selection=current_pairs N_selected=4834 N_valid=4834 bias_ra_arcsec=0.591 bias_dec_arcsec=0.306 median_sep_arcsec=1.270 p95_sep_arcsec=2.618 n_q1=1522 n_q2=702 n_q3=1699 n_q4=911 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits -region wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.ld4adrlWrI (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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.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=3, blended=612, bad_region=3148, passed=20533
Got 20533 stars (including 16838 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat 
util/solve_plate_with_UCAC5 got 20533 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.0'
Seting catalog search parameters based on the expected field of view 940.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013056 (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 0.010444 (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 67.3)
Done reading UCAC5 zone files...
Matched 4826 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4818 matched stars entering correct_measured_positions(), 4819 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4818 matched stars entering correct_measured_positions(), 18165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

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 67.3)
Done reading UCAC5 zone files...
Matched 4824 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4818 matched stars entering correct_measured_positions(), 18165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 4818 matched stars entering correct_measured_positions(), 18165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4818 stars left (next iteration limit 5299)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4818 robust_rms=6.966 arcsec worst_region_rms=9.798 arcsec outer_annulus_rms=9.798 arcsec
SIP_REFIT: SIP order 3 trial: matched=4818 robust_rms=0.637 arcsec worst_region_rms=0.791 arcsec outer_annulus_rms=0.659 arcsec
SIP_REFIT: SIP order 5 trial: matched=4818 robust_rms=0.468 arcsec worst_region_rms=0.591 arcsec outer_annulus_rms=0.500 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4818 robust_rms_before=1.509 arcsec robust_rms_before_corrected=0.396 arcsec robust_rms_after=0.468 arcsec worst_region_rms_before=0.498 worst_region_rms_after=0.591 outer_annulus_rms_before=1.651 outer_annulus_rms_after=0.500
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.498 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits worst_region_rms_kept=0.498 arcsec robust_rms_kept=0.396 arcsec matched=4818
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits N_match=4818 sigma_overall_arcsec=0.391 sigma_q1_arcsec=0.389 sigma_q2_arcsec=0.451 sigma_q3_arcsec=0.394 sigma_q4_arcsec=0.367 n_q1=1517 n_q2=700 n_q3=1693 n_q4=908 worst_quadrant_to_overall_ratio=1.152
WCS_HEADER_DIAG: file=fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits selection=current_pairs N_selected=4818 N_valid=4818 bias_ra_arcsec=0.644 bias_dec_arcsec=0.277 median_sep_arcsec=1.377 p95_sep_arcsec=2.770 n_q1=1517 n_q2=700 n_q3=1693 n_q4=908 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits -region wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/wcs_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 12:03:22.33 +62:50:00.0:  12.37 +/- 0.01  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 11:38:08.69 +58:45:30.0:  13.55 +/- 0.03  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 11:23:14.76 +58:34:10.4:  13.53 +/- 0.04  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 12:03:22.33 +62:50:00.0:  12.39 +/- 0.01  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 11:38:08.69 +58:45:30.0:  13.62 +/- 0.04  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 11:23:14.76 +58:34:10.4:  13.59 +/- 0.04  detection
Forced photometry reference-image weighted average:  13.56 +/- 0.03
Forced photometry reference-image weighted average:  12.38 +/- 0.01
Forced photometry filter REJECTED candidate at 11:23:14.76 +58:34:10.4: ref_mag=13.56 +/- 0.03 new_mean_mag=13.4530 delta=0.10 (need > 0.90)
Forced photometry reference-image weighted average:  13.59 +/- 0.02
Forced photometry filter REJECTED candidate at 12:03:22.33 +62:50:00.0: ref_mag=12.38 +/- 0.01 new_mean_mag=12.5801 delta=-0.20 (need > 0.90)
Forced photometry filter REJECTED candidate at 11:38:08.69 +58:45:30.0: ref_mag=13.59 +/- 0.02 new_mean_mag=13.3848 delta=0.20 (need > 0.90)
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: 1s
  
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Considering the candidate 52071_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52071_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 1     2026 10 19.35596    2461332.85596    13.51    11:38:08.66 +58:45:30.1   3040 1354   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Discovery image 2     2026 10 19.35645    2461332.85645    13.31    11:38:08.73 +58:45:30.0   3039 1348   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

  
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Considering the candidate 52072_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52072_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    13.42    11:28:34.76 +60:31:57.4   2470 2514   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  11:28:34.69 +60:31:57.3 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52074_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52074_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 1     2026 10 19.35596    2461332.85596    12.51    12:03:22.42 +62:50:00.1   5085 3667   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Discovery image 2     2026 10 19.35645    2461332.85645    12.69    12:03:22.24 +62:49:59.8   5084 3661   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

  
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Considering the candidate 52310_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52310_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    12.61    11:04:04.45 +61:47:48.6   0867 3633   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  11:04:04.31 +61:47:48.8 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 52634_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52634_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 1     2026 10 19.35596    2461332.85596    13.47    11:23:14.79 +58:34:10.7   1858 1414   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-32-24_20.00sec_-0.00C_LIGHT_0480.fits
Discovery image 2     2026 10 19.35645    2461332.85645    13.44    11:23:14.72 +58:34:10.1   1857 1408   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

  
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Considering the candidate 52687_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52687_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    13.67    11:59:58.83 +59:05:41.5   4754 1415   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  11:59:58.74 +59:05:41.8 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52707_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52707_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    13.56    11:58:21.19 +61:26:10.2   4697 2832   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  11:58:21.20 +61:26:10.6 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 52835_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52835_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    13.78    11:56:12.89 +61:00:05.5   4528 2578   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  11:56:12.84 +61:00:05.1 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52891_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481
The candidate 52891_fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481 did not pass the final checks
Discovery image 2     2026 10 19.35645    2461332.85645    13.94    12:24:39.75 +62:30:26.5   6561 3487   /data_ssd/NMW-TexasTech/workdir//img_2026-10-19_CI_UMa-04-Q2b1x1_034618_TTUQ2b1x1_2681094_ZTMegHvj/fd_UMa-04-Q2b1x1_2026-10-19_03-33-06_20.00sec_-0.00C_LIGHT_0481.fits

**** FOUND  12:24:39.62 +62:30:25.4 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed UMa-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461332.85595669 -observatory V36
15:03:09.81 -20:35:14.3 Mercury (0.2mag)
13:53:41.79 -19:19:19.9 Venus (-4.2mag)
08:57:58.08 +18:35:09.0 Mars (1.0mag)
09:39:15.23 +14:42:41.2 Jupiter (-1.9mag)
00:40:12.36 +01:23:02.3 Saturn (0.4mag)
04:11:10.17 +20:55:38.7 Uranus (5.6mag)
00:09:35.40 -00:30:25.9 Neptune (7.7mag)
20:24:09.68 -23:43:14.1 Pluto (14.5mag)
20:20:19.15 -21:55:12.9 Moon (-10.6mag)
-rw-r--r-- 1 apache apache 362 Oct 19 03:48 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461332.85595669:
09:39:22.01 +14:42:03.9 Io (6.1mag)
09:39:21.19 +14:42:10.0 Europa (6.2mag)
09:39:32.37 +14:41:05.3 Ganymede (5.6mag)
09:39:43.57 +14:40:05.5 Callisto (6.8mag)
09:39:35.75 +15:00:27.7 Himalia (15.6mag)
09:39:13.99 +14:42:48.0 Thebe (16.4mag)
09:38:12.70 +15:05:58.3 Elara (17.5mag)
09:41:09.85 +14:06:22.0 Pasiphae (17.8mag)
09:37:17.64 +15:11:40.3 Carme (18.8mag)
00:40:23.60 +01:22:37.3 Titan (8.2mag)
00:40:15.06 +01:22:43.8 Rhea (9.6mag)
00:40:02.36 +01:20:46.0 Iapetus (11.0mag)
00:40:25.35 +01:22:28.2 Hyperion (14.1mag)
00:38:28.38 +01:10:37.2 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Oct 19 03:48 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461332.85595669:
03:34:31.88 +20:35:42.9 JWST
17:15:29.09 +38:37:55.8 Chandra
12:59:19.77 -62:15:03.1 XMM-Newton
-rw-r--r-- 1 apache apache 96 Oct 19 03:48 spacecraft.txt
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Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461332.85595669 -observatory V36
03:43:04.49 +20:11:04.8 17.1mag P/1996 R2 (Lagerkvist)
07:40:14.99 +37:23:25.5 18.0mag P/2004 V5-A (LINEAR-Hill)
18:32:10.96 -33:17:58.6 14.8mag P/2010 H2 (Vales)
07:42:36.34 -72:55:39.3 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:45.33 +34:52:56.1 17.7mag C/2017 K2 (PANSTARRS)
04:46:04.18 +48:20:40.0 17.5mag P/2021 N1 (ZTF)
07:32:53.53 +25:23:27.9 16.9mag C/2022 N2 (PANSTARRS)
09:05:14.59 +36:33:35.2 16.3mag C/2024 E1 (Wierzchos)
18:29:07.07 +41:12:35.9 17.4mag C/2024 J3 (ATLAS)
05:46:07.50 -13:39:33.4 16.5mag C/2024 T5 (ATLAS)
12:32:12.52 +15:20:41.0 16.0mag C/2025 V2 (Rankin)
13:59:09.19 -03:22:53.2 16.5mag C/2025 Y1 (ATLAS)
19:15:21.95 +61:42:09.5 15.6mag C/2026 A2 (Bok)
02:27:04.49 +42:02:19.8 17.9mag C/2026 B2 (Sun-Gao)
12:53:18.47 +15:06:16.2 17.7mag A/2026 E1
16:26:54.75 -46:33:19.8 13.3mag P/2026 R2 (Leonard)
00:06:45.67 +17:37:20.0 17.3mag 2P/Encke
23:07:22.85 -29:49:10.9 14.8mag 10P/Tempel
02:21:29.80 +36:53:52.0 16.6mag 11P/Tempel-Swift-LINEAR
12:16:31.55 -08:48:48.3 16.3mag 29P/Schwassmann-Wachmann
00:17:37.14 -09:02:52.1 15.7mag 65P/Gunn
07:45:41.26 +15:09:25.3 13.9mag 78P/Gehrels
02:51:36.89 +13:55:27.8 17.8mag 88P/Howell
08:07:50.30 +42:24:49.3 17.0mag 112P/Urata-Niijima
09:20:38.86 +11:15:06.9 17.7mag 114P/Wiseman-Skiff
11:57:13.34 +11:26:23.2 14.8mag 123P/West-Hartley
14:27:02.76 -34:24:19.2 17.9mag 124P/Mrkos
20:44:03.42 +08:48:15.4 9.7mag 161P/Hartley-IRAS
10:38:09.16 -00:09:05.5 15.0mag 169P/NEAT
03:24:06.04 +03:37:44.0 15.0mag 220P/McNaught
06:13:51.49 +46:54:41.2 15.5mag 260P/McNaught
07:38:43.58 +25:24:49.3 17.8mag 266P/Christensen
-rw-r--r-- 1 apache apache 1.6K Oct 19 03:48 comets.txt
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List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
21:50:55.86 -02:51:49.30  SN2026acyb  2026-10-9.85 16.83
03:40:34.04 +02:31:56.70  SN2026acvp  2026-10-9.95 17.75
04:33:25.91 -13:41:04.20  SN2026adhl  2026-10-9.94 17.52
09:20:05.05 +27:03:12.40  SN2026aeif  2026-10-9.47 15.93
02:58:07.77 -65:18:52.90  ASASSN-26fl  2026-10-7.9 -0.85
02:49:03.98 -49:55:57.00  SN 2026adfy  2026-10-4.88 16.61
22:03:46.31 -11:07:57.70  AT2026adgn  2026-10-4.28 -2.56
15:03:12.98 +49:51:05.40  ASASSN-26fj  2026-10-2.06 15.91
08:07:27.96 -65:51:03.90  ASASSN-26fi  2026-10-1.36 15.82
21:02:34.66 +23:57:26.20  ASASSN-26fh  2026-10-1.27 15.94
20:00:16.62 +03:26:29.90  AT2026adfv  2026-10-1.3 16.42
00:08:42.74 -32:33:16.50  SN2026abhc  2026-09-29.15 15.57
21:02:30.26 -19:27:41.80  SN2026acxa  2026-09-29.13 14.65
04:39:17.45 -28:06:12.40  ASASSN-26fg  2026-09-23.25 15.73
05:25:07.80 +04:38:32.40  SN2026aajs  2026-09-21.32 17.04
19:56:12.67 +08:25:27.70  AT2026acgs  2026-09-18.14 15.84
00:02:34.07 +52:55:19.10  ASASSN-26ff  2026-09-16.43 15.37
23:44:33.18 +17:46:12.20  SN2026yjv  2026-09-15.38 18.32
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.59 +34:24:35.70  SN2026aaiv  2026-09-7.22 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
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
-rw-r--r-- 1 apache apache 5.7K Oct 19 03:48 asassn_transients_list.txt
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Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
00:42:36.61 +41:13:50.5  TCP J00423661+4113505  2026-09-29.7462  17.4mag
22:03:46.29 -11:07:57.8  TCP J22034629-1107578  2026-09-29.7438  14.51Cmag
22:05:02.06 +20:49:01.2  TCP J22050206+2049012  2026-10-03.5715  17.13Cmag
00:38:15.01 +41:14:47.2  TCP J00381501+4114472  2026-10-08.5978  17.72Cmag
01:06:05.83 +09:51:20.4  TCP J01060583+0951204  2026-10-10.8543  14.54Cmag
17:54:18.76 -27:36:36.2  TCP J17541876-2736362  2026-10-12.3993  10.8mag
09:56:00.79 +69:06:15.2  PNV J09560079+6906152  2026-10-14.9274  19.38Cmag
00:43:30.83 +41:26:55.3  PNV J00433083+4126553  2026-10-17.5651  18.61Cmag
04:57:32.08 +30:15:41.6  TCP J04573208+3015416  2026-10-17.7818  18.21Cmag
-rw-r--r-- 1 apache apache 191K Oct 19 03:48 tocp_transients_list.txt
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Truncated list of recent TNS transients from https://www.wis-tns.org/ :
23:08:00.390 +01:05:48.35  AT 2026adob  2026-08-14.51 21.57
21:19:02.174 -34:05:35.56  AT 2026adoa  2026-08-13.42 19.63
20:56:45.290 -18:05:02.80  AT 2026adnz  2026-08-12.41 20.46
23:25:40.588 -15:42:32.14  AT 2026adny  2026-08-12.51 21.4
23:33:37.029 -19:03:44.90  AT 2026adnx  2026-08-12.52 21.11
01:22:51.166 -16:32:34.62  AT 2026adnw  2026-08-12.58 21.2
16:49:59.712 -05:29:13.23  AT 2026adnv  2026-08-12.29 20.89
01:37:58.482 -13:53:51.39  AT 2026adnu  2026-08-12.57 20.08
23:58:51.491 -20:58:51.01  AT 2026adnt  2026-08-12.58 20.72
01:49:33.540 -13:10:41.72  AT 2026adns  2026-08-13.58 21.38
01:55:40.842 -13:23:28.49  AT 2026adnr  2026-08-12.58 21.06
01:59:56.676 -06:01:44.08  AT 2026adnq  2026-08-11.56 21.39
01:58:57.278 -07:10:27.79  AT 2026adnp  2026-08-11.55 21.15
17:12:42.440 +04:22:34.32  AT 2026adno  2026-08-11.33 20.81
16:41:24.276 +14:36:18.18  AT 2026adnn  2026-08-11.28 21.29
01:33:00.444 +35:48:10.03  AT 2026adnm  2026-08-09.60 21.02
16:15:27.436 -13:06:52.26  AT 2026adnl  2026-08-09.26 21.1
21:03:26.516 -27:11:33.79  AT 2026adnk  2026-08-09.38 20.89
19:52:57.783 -30:08:02.85  AT 2026adnj  2026-08-09.35 20.47
00:19:25.338 -09:01:03.19  AT 2026adni  2026-08-08.57 20.68
-rw-r--r-- 1 apache apache 89K Oct 19 03:48 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Oct 19 03:48:09 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 23s (0.38 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 4s (0.07 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: 1s (0.02 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: 34s (0.57 min)
TIMING SExtractor: 5 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 8s (0.13 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 7s (0.12 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: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 18s (0.30 min)
FIELD_UMa-04-Q2b1x1: 65s (1.08 min)
=======================================
TOTAL_RUNTIME: 70s (1.17 min)
Finished: Mon Oct 19 03:49:19 CDT 2026