FITS images used in this processing run:

Field UMa-09-Q2b1x1 reference image: UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Field UMa-09-Q2b1x1 reference image: UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Field UMa-09-Q2b1x1 second-epoch image: UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Field UMa-09-Q2b1x1 second-epoch image: UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461058.82250781 18.01.2026 07:44:14.675   /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
First image: 2461058.82250781 18.01.2026 07:44:14.675   /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Last  image: 2461302.90060843 19.09.2026 09:36:42.568   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 1
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.30
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: 4 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):  6110
Objects passed selection criteria:  6095
Measurements per detected object (mean, median, min, max):    2.9    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.9    2.0    2    4
Average stars detected per image: 4552.75
Average stars matched: 4447.75 (97.6937 %)
Memory usage VmPeak:   233080 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Sep 19 04:43:53 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: 2461058.82250781 18.01.2026 07:44:14.675   /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
First image: 2461058.82250781 18.01.2026 07:44:14.675   /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Last  image: 2461302.90060843 19.09.2026 09:36:42.568   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 13
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.02
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: 10 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):  34006
Objects passed selection criteria:  33928
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: 27073.2
Average stars matched: 26306.8 (97.1688 %)
Memory usage VmPeak:   259316 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 11 14:55:52 CDT 2026
VaST build number  1.0rc89-210-g97d43bca
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-11)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Sep 19 04:44:37 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-09-Q2b1x1
#######################################
########### Starting UMa-09-Q2b1x1 ###########
Processing UMa-09-Q2b1x1
server tau has sufficient free disk space available: 221508 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 221508 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.png' -> 'transient_report/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits_preview.png'

UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits


renamed 'UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.png' -> 'transient_report/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits_preview.png'

UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 449.0147
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 524.3424
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1703.2658
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 474.4549
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1695.0687
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 473.2488
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.79334
INFO:                  SECOND_EPOCH__SD_ratio= 0.003
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     24.5599994659424 / [degC] Focuser temperature
AMBTEMP =                 23.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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= '2026-09-19T04:35:48.4535942' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-19T09:35:48.4535942' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61302.3998663542 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-19T09:35:58.3567069' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61302.3999809721 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     143.998514808359 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9997270973146 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9711111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.3544444444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.81750859887177 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '09 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20451 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20451 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     24.5599994659424 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     24.5599994659424 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 16.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 65.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 24.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.700776 / [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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/d_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits :)

Spent 0.559478 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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/d_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     24.5699996948242 / [degC] Focuser temperature
AMBTEMP =                 23.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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= '2026-09-19T04:36:42.5681595' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-19T09:36:42.5681595' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61302.4004926854 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-19T09:36:52.4703592' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61302.4006072916 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     143.998514721551 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9997271431159 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =              15.1025 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.4438888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.78601937111543 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '09 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20451 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20451 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     24.5699996948242 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     24.5699996948242 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 16.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 65.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 24.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.700776 / [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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/d_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits :)

Spent 0.540411 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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/d_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits



fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
  
SExtractor catalog cache: saved UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.cat to cache
SExtractor catalog cache: saved UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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: 2461302.89998209
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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits exists and is non-empty
wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits exists and is non-empty
wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits exists and is non-empty
wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (1st reference image)
verification OK: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Image size: 941.8'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: 09:36:00.615 +46:00:07.35 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-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits (1st new image)
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Image size: 940.8'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 09:36:02.662 +46:02:43.63 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 09:36:00.615 +46:00:07.35
Second-epoch image center 09:36:02.662 +46:02:43.63
Angular distance between the image centers 0.0438 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits (2nd new image)
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Image size: 940.7'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 09:36:04.765 +46:03:22.33 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 09:36:00.615 +46:00:07.35
Second-epoch image center 09:36:04.765 +46:03:22.33
Angular distance between the image centers 0.0555 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  09:36:02.662 +46:02:43.63
Second-epoch second image center 09:36:04.765 +46:03:22.33
Angular distance between the image centers 0.01235 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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits &> /tmp/tmp.w5mWOkcTYh
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits &> /tmp/tmp.naklPGxDtm
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits &> /tmp/tmp.OYPBBNnfDi
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits &> /tmp/tmp.vflZpHI4Q8
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat 
Found non-empty wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat
The reference image (wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits) and catalog (wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat) found
'wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat' -> 'wcsmag.cat'
Read 8167 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.3113 to 155.8121 deg, Dec +39.8601 to +51.4110 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 131.3113 to 155.8121 deg, Dec 39.8601 to 51.4110 deg
Loaded 5371 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): 3775 out of 3982 total matches.
Matched with Tycho-2 3982 out of 8167 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.900200
a=0.000000 b=1.000000 c=22.900200
From vast_summary.log: estimated ref. image limiting mag.:  -7.30
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.60

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.60

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 8167 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.3113 to 155.8121 deg, Dec +39.8601 to +51.4110 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 131.3113 to 155.8121 deg, Dec 39.8601 to 51.4110 deg
Loaded 5371 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): 3775 out of 3982 total matches.
Matched with Tycho-2 3982 out of 8167 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Forced-photometry filter: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits -> calib.txt_param_ref_wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (aperture=6.1)
Read 8217 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.3113 to 155.8120 deg, Dec +39.8857 to +51.4193 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 131.3113 to 155.8120 deg, Dec 39.8857 to 51.4193 deg
Loaded 5368 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): 3781 out of 3990 total matches.
Matched with Tycho-2 3990 out of 8217 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Forced-photometry filter: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits -> calib.txt_param_ref_wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits (aperture=6.1)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
 2.1 pix  UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
 2.2 pix  fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
 2.3 pix  fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Limiting magnitude estimates:
 15.6 mag.  UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
 15.6 mag.  UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
 14.2 mag.  fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
 14.2 mag.  fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
All-image limiting magnitude estimate:  14.2 (SNR )  11.3 (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.w5mWOkcTYh (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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits' -> 'wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS_IMAGE_NAME=wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS-calibrated image found: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Checking if the catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits alredy exist and is non-empty...
Catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS catalog name: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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=568, bad_region=1781, passed=8167
Got 8167 stars (including 5926 good ones) from the SExtractor catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat 
util/solve_plate_with_UCAC5 got 8167 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 649 to 709 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4923 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 4918 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 6756 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 

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 649 to 709 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4922 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4917 matched stars entering correct_measured_positions(), 6756 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4917 matched stars entering correct_measured_positions(), 6756 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Excluding outliers - 4917 stars left (next iteration limit 5409)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits N_match=4917 sigma_overall_arcsec=0.348 sigma_q1_arcsec=0.443 sigma_q2_arcsec=0.354 sigma_q3_arcsec=0.302 sigma_q4_arcsec=0.290 n_q1=1548 n_q2=901 n_q3=1628 n_q4=840 worst_quadrant_to_overall_ratio=1.271
The image catalog is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits -region wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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.naklPGxDtm (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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks
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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits' -> 'wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS_IMAGE_NAME=wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS-calibrated image found: wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Checking if the catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits alredy exist and is non-empty...
Catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS catalog name: wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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=561, bad_region=1781, passed=8217
Got 8217 stars (including 5974 good ones) from the SExtractor catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat 
util/solve_plate_with_UCAC5 got 8217 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 649 to 709 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4921 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 4916 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 6817 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

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 649 to 709 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4921 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 6817 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 6817 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 4916 stars left (next iteration limit 5407)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits N_match=4916 sigma_overall_arcsec=0.325 sigma_q1_arcsec=0.396 sigma_q2_arcsec=0.331 sigma_q3_arcsec=0.292 sigma_q4_arcsec=0.285 n_q1=1541 n_q2=890 n_q3=1645 n_q4=840 worst_quadrant_to_overall_ratio=1.217
The image catalog is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits -region wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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.OYPBBNnfDi (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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS_IMAGE_NAME=wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS-calibrated image found: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Checking if the catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS catalog name: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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=205, bad_region=539, passed=3282
Got 3282 stars (including 2561 good ones) from the SExtractor catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat 
util/solve_plate_with_UCAC5 got 3282 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (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 0.010453 (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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 2520 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2517 matched stars entering correct_measured_positions(), 2517 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2517 matched stars entering correct_measured_positions(), 2843 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 

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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 2520 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2518 matched stars entering correct_measured_positions(), 2843 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 2518 matched stars entering correct_measured_positions(), 2843 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 2518 stars left (next iteration limit 2768)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2518 robust_rms=5.786 arcsec worst_quadrant_rms=9.921 arcsec
SIP_REFIT: SIP order 3 trial: matched=2518 robust_rms=0.537 arcsec worst_quadrant_rms=0.576 arcsec
SIP_REFIT: SIP order 5 trial: matched=2518 robust_rms=0.399 arcsec worst_quadrant_rms=0.419 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2518 robust_rms_before=1.572 arcsec robust_rms_before_corrected=0.393 arcsec robust_rms_after=0.399 arcsec worst_quadrant_rms_before=0.421 worst_quadrant_rms_after=0.419
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.421 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits N_match=2518 sigma_overall_arcsec=0.409 sigma_q1_arcsec=0.398 sigma_q2_arcsec=0.382 sigma_q3_arcsec=0.435 sigma_q4_arcsec=0.394 n_q1=833 n_q2=396 n_q3=871 n_q4=418 worst_quadrant_to_overall_ratio=1.064
The image catalog is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits -region wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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.vflZpHI4Q8 (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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS_IMAGE_NAME=wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS-calibrated image found: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Checking if the catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS catalog name: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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=199, bad_region=542, passed=3306
Got 3306 stars (including 2583 good ones) from the SExtractor catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat 
util/solve_plate_with_UCAC5 got 3306 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.7'
Seting catalog search parameters based on the expected field of view 940.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013065 (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 0.010452 (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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 2543 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2540 matched stars entering correct_measured_positions(), 2540 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2540 matched stars entering correct_measured_positions(), 2865 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 

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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 2543 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2540 matched stars entering correct_measured_positions(), 2865 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 2540 matched stars entering correct_measured_positions(), 2865 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 2540 stars left (next iteration limit 2794)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2540 robust_rms=5.650 arcsec worst_quadrant_rms=10.604 arcsec
SIP_REFIT: SIP order 3 trial: matched=2540 robust_rms=0.513 arcsec worst_quadrant_rms=0.545 arcsec
SIP_REFIT: SIP order 5 trial: matched=2540 robust_rms=0.393 arcsec worst_quadrant_rms=0.456 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2540 robust_rms_before=1.518 arcsec robust_rms_before_corrected=0.391 arcsec robust_rms_after=0.393 arcsec worst_quadrant_rms_before=0.415 worst_quadrant_rms_after=0.456
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.415 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits N_match=2540 sigma_overall_arcsec=0.405 sigma_q1_arcsec=0.388 sigma_q2_arcsec=0.407 sigma_q3_arcsec=0.402 sigma_q4_arcsec=0.397 n_q1=835 n_q2=408 n_q3=881 n_q4=416 worst_quadrant_to_overall_ratio=1.003
The image catalog is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits -region wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits to local_wcs_cache/
'wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits' -> 'local_wcs_cache/wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits'
Saving the final (post-refit) wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits to local_wcs_cache/
'wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits' -> 'local_wcs_cache/wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits'
Saving the final (post-refit) wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits to local_wcs_cache/
'wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits' -> 'local_wcs_cache/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits'
Saving the final (post-refit) wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits to local_wcs_cache/
'wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits' -> 'local_wcs_cache/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits sigma_overall=0.348 worst_q_ratio=1.271
ref2=UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits sigma_overall=0.325 worst_q_ratio=1.217
new1=fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits sigma_overall=0.409 worst_q_ratio=1.064
new2=fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits sigma_overall=0.405 worst_q_ratio=1.003
reference average sigma_overall=0.3365 worst_q_ratio=1.244
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332_astrometric_residuals.png (4917 matched stars from wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333_astrometric_residuals.png (4916 matched stars from wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492_astrometric_residuals.png (2518 matched stars from wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493_astrometric_residuals.png (2540 matched stars from wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits'
Saving fully-calibrated image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits'
Preparing the HTML report for the field UMa-09-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20382_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 20382_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    10.70    09:08:47.99 +42:09:22.2   1657 1042   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:08:47.98 +42:09:22.2 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-09-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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
  
SExtractor catalog cache: saved UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.cat to cache
SExtractor catalog cache: saved UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Creating symlink local_wcs_cache/wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits exists and is non-empty
wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits exists and is non-empty
wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits exists and is non-empty
wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (1st reference image)
verification OK: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Image size: 941.8'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: 09:36:00.615 +46:00:07.35 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-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits (1st new image)
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Image size: 940.8'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 09:36:02.662 +46:02:43.63 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 09:36:00.615 +46:00:07.35
Second-epoch image center 09:36:02.662 +46:02:43.63
Angular distance between the image centers 0.0438 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits (2nd new image)
verification OK: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Image size: 940.7'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 09:36:04.765 +46:03:22.33 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 09:36:00.615 +46:00:07.35
Second-epoch image center 09:36:04.765 +46:03:22.33
Angular distance between the image centers 0.0555 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  09:36:02.662 +46:02:43.63
Second-epoch second image center 09:36:04.765 +46:03:22.33
Angular distance between the image centers 0.01235 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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits &> /tmp/tmp.ki35yDy0Qr
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits &> /tmp/tmp.3GPPR4V9fg
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits &> /tmp/tmp.JUasjv4lB5
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits &> /tmp/tmp.v7NoNS2Zwb
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat 
Found non-empty wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits and wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat
The reference image (wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits) and catalog (wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat) found
'wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat' -> 'wcsmag.cat'
Read 43830 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.1869 to 155.9247 deg, Dec +39.8064 to +51.4126 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 131.1869 to 155.9247 deg, Dec 39.8064 to 51.4126 deg
Loaded 5468 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): 3552 out of 3993 total matches.
Matched with Tycho-2 3993 out of 43830 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.793400
a=0.000000 b=1.000000 c=22.793400
From vast_summary.log: estimated ref. image limiting mag.:  -7.02
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.77

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.77

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 43830 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.1869 to 155.9247 deg, Dec +39.8064 to +51.4126 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 131.1869 to 155.9247 deg, Dec 39.8064 to 51.4126 deg
Loaded 5468 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): 3552 out of 3993 total matches.
Matched with Tycho-2 3993 out of 43830 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Forced-photometry filter: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits -> calib.txt_param_ref_wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (aperture=4.8)
Read 43644 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 131.2439 to 155.9246 deg, Dec +39.8187 to +51.4195 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 131.2439 to 155.9246 deg, Dec 39.8187 to 51.4195 deg
Loaded 5438 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): 3552 out of 3999 total matches.
Matched with Tycho-2 3999 out of 43644 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Forced-photometry filter: calibrated wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits -> calib.txt_param_ref_wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits (aperture=4.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 11 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.9 pix  UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
 2.0 pix  UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
 2.1 pix  fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
 2.1 pix  fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Limiting magnitude estimates:
 15.8 mag.  UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
 15.8 mag.  UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
 14.4 mag.  fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
 14.4 mag.  fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
All-image limiting magnitude estimate:  14.4 (SNR )  13.8 (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.ki35yDy0Qr (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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits' -> 'wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS_IMAGE_NAME=wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS-calibrated image found: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
Checking if the catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits alredy exist and is non-empty...
Catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits
WCS catalog name: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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=15, blended=2151, bad_region=7381, passed=43815
Got 43815 stars (including 34536 good ones) from the SExtractor catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat 
util/solve_plate_with_UCAC5 got 43815 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 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4919 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 4915 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 38043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 

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 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4919 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 38043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 38043 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Excluding outliers - 4915 stars left (next iteration limit 5406)
Stop iterations.


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

SIP_REFIT: wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits N_match=4915 sigma_overall_arcsec=0.326 sigma_q1_arcsec=0.424 sigma_q2_arcsec=0.330 sigma_q3_arcsec=0.290 sigma_q4_arcsec=0.271 n_q1=1535 n_q2=898 n_q3=1648 n_q4=834 worst_quadrant_to_overall_ratio=1.300
The image catalog is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits -region wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.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.3GPPR4V9fg (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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks
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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits' -> 'wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS_IMAGE_NAME=wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS-calibrated image found: wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
Checking if the catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits alredy exist and is non-empty...
Catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat corresponding to the image wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits
WCS catalog name: wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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=2132, bad_region=7360, passed=43635
Got 43635 stars (including 34374 good ones) from the SExtractor catalog wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat 
util/solve_plate_with_UCAC5 got 43635 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 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4915 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 4911 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 37880 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

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 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4915 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 37880 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 37880 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 4911 stars left (next iteration limit 5402)
Stop iterations.


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

SIP_REFIT: wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits N_match=4911 sigma_overall_arcsec=0.307 sigma_q1_arcsec=0.381 sigma_q2_arcsec=0.309 sigma_q3_arcsec=0.276 sigma_q4_arcsec=0.268 n_q1=1534 n_q2=893 n_q3=1650 n_q4=834 worst_quadrant_to_overall_ratio=1.238
The image catalog is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits -region wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.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.JUasjv4lB5 (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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS_IMAGE_NAME=wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS-calibrated image found: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Checking if the catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
WCS catalog name: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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=5, blended=600, bad_region=2209, passed=20363
Got 20363 stars (including 17587 good ones) from the SExtractor catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat 
util/solve_plate_with_UCAC5 got 20363 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (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 0.010453 (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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4905 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: 0.39" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 18745 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 

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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4905 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4901 matched stars entering correct_measured_positions(), 18745 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 4901 matched stars entering correct_measured_positions(), 18745 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4901 stars left (next iteration limit 5390)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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=4901 robust_rms=5.551 arcsec worst_quadrant_rms=10.706 arcsec
SIP_REFIT: SIP order 3 trial: matched=4901 robust_rms=0.550 arcsec worst_quadrant_rms=0.579 arcsec
SIP_REFIT: SIP order 5 trial: matched=4901 robust_rms=0.431 arcsec worst_quadrant_rms=0.485 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4901 robust_rms_before=1.575 arcsec robust_rms_before_corrected=0.411 arcsec robust_rms_after=0.431 arcsec worst_quadrant_rms_before=0.438 worst_quadrant_rms_after=0.485
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.438 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits N_match=4901 sigma_overall_arcsec=0.421 sigma_q1_arcsec=0.404 sigma_q2_arcsec=0.441 sigma_q3_arcsec=0.447 sigma_q4_arcsec=0.403 n_q1=1652 n_q2=728 n_q3=1739 n_q4=782 worst_quadrant_to_overall_ratio=1.062
The image catalog is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits -region wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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.v7NoNS2Zwb (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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS_IMAGE_NAME=wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS-calibrated image found: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Checking if the catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat corresponding to the image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
WCS catalog name: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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=614, bad_region=2271, passed=20421
Got 20421 stars (including 17597 good ones) from the SExtractor catalog wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat 
util/solve_plate_with_UCAC5 got 20421 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.7'
Seting catalog search parameters based on the expected field of view 940.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013065 (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 0.010452 (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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4907 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4902 matched stars entering correct_measured_positions(), 4902 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4901 matched stars entering correct_measured_positions(), 18756 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 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4907 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4902 matched stars entering correct_measured_positions(), 18756 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 4902 matched stars entering correct_measured_positions(), 18756 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 4902 stars left (next iteration limit 5391)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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=4902 robust_rms=5.456 arcsec worst_quadrant_rms=10.980 arcsec
SIP_REFIT: SIP order 3 trial: matched=4902 robust_rms=0.531 arcsec worst_quadrant_rms=0.564 arcsec
SIP_REFIT: SIP order 5 trial: matched=4902 robust_rms=0.424 arcsec worst_quadrant_rms=0.488 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4902 robust_rms_before=1.527 arcsec robust_rms_before_corrected=0.394 arcsec robust_rms_after=0.424 arcsec worst_quadrant_rms_before=0.412 worst_quadrant_rms_after=0.488
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.412 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits N_match=4902 sigma_overall_arcsec=0.409 sigma_q1_arcsec=0.409 sigma_q2_arcsec=0.405 sigma_q3_arcsec=0.421 sigma_q4_arcsec=0.390 n_q1=1654 n_q2=723 n_q3=1733 n_q4=792 worst_quadrant_to_overall_ratio=1.030
The image catalog is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits -region wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Saving fully-calibrated image wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.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_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/wcs_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits
Preparing the HTML report for the field UMa-09-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits at 09:15:46.82 +43:12:55.7:  13.50 +/- 0.03  detection
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits at 09:37:31.29 +48:31:03.0:  11.97 +/- 0.01  detection
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-44-14_20.00sec_-15.00C_LIGHT_0332.fits at 09:56:47.43 +48:47:31.8:  13.53 +/- 0.03  detection
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits at 09:56:47.43 +48:47:31.8:  13.38 +/- 0.03  detection
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits at 09:15:46.82 +43:12:55.7:  13.52 +/- 0.03  detection
Forced photometry on wcs_UMa-09-Q2b1x1_2026-01-18_01-45-00_20.00sec_-15.00C_LIGHT_0333.fits at 09:37:31.29 +48:31:03.0:  11.94 +/- 0.01  detection
Forced photometry reference-image weighted average:  13.51 +/- 0.02
Forced photometry reference-image weighted average:  11.95 +/- 0.01
Forced photometry reference-image weighted average:  13.45 +/- 0.02
Forced photometry filter REJECTED candidate at 09:15:46.82 +43:12:55.7: ref_mag=13.51 +/- 0.02 new_mean_mag=13.4985 delta=0.01 (need > 0.90)
Forced photometry filter REJECTED candidate at 09:37:31.29 +48:31:03.0: ref_mag=11.95 +/- 0.01 new_mean_mag=12.0433 delta=-0.09 (need > 0.90)
Forced photometry filter REJECTED candidate at 09:56:47.43 +48:47:31.8: ref_mag=13.45 +/- 0.02 new_mean_mag=13.5302 delta=-0.08 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52411_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52411_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 1     2026 09 19.39998    2461302.89998    13.58    09:56:47.29 +48:47:32.2   6905 4869   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Discovery image 2     2026 09 19.40061    2461302.90061    13.49    09:56:47.58 +48:47:31.5   6902 4862   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52415_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52415_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 1     2026 09 19.39998    2461302.89998    13.56    09:15:46.79 +43:12:55.9   2507 1615   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Discovery image 2     2026 09 19.40061    2461302.90061    13.46    09:15:46.86 +43:12:55.4   2503 1608   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52416_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52416_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.25    09:33:47.89 +47:31:48.3   4584 4092   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:33:47.90 +47:31:48.7 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52418_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52418_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 1     2026 09 19.39998    2461302.89998    12.10    09:37:31.32 +48:31:03.3   4982 4684   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-35-48_20.00sec_-0.00C_LIGHT_0492.fits
Discovery image 2     2026 09 19.40061    2461302.90061    12.00    09:37:31.26 +48:31:02.7   4978 4678   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52659_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52659_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.33    09:05:24.33 +48:33:40.8   1768 4951   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:05:24.42 +48:33:40.9 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52718_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52718_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.57    08:56:24.38 +45:45:49.3   0601 3397   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  08:56:24.43 +45:45:49.5 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52742_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52742_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.57    09:26:17.08 +44:34:20.7   3710 2345   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:26:17.06 +44:34:21.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52779_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52779_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.66    09:29:54.33 +46:11:08.8   4147 3298   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:29:54.36 +46:11:08.6 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52831_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 52831_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 2     2026 09 19.40061    2461302.90061    13.83    09:33:43.19 +47:30:50.8   4575 4083   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:33:43.11 +47:30:50.8 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 07744_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 07744_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 3     2026 09 19.40061    2461302.90061    10.85    09:08:48.04 +42:09:22.4   1657 1042   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

**** FOUND  09:08:48.02 +42:09:22.2 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 33256_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493
The candidate 33256_fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493 did not pass the final checks
Discovery image 3     2026 09 19.40061    2461302.90061    12.88    09:14:45.45 +49:47:29.1   2777 5588   /data_ssd/NMW-TexasTech/workdir//img_2026-09-19_CI_UMa-09-Q2b1x1_044139_TTUQ2b1x1_455613_ic4Sxddh/fd_UMa-09-Q2b1x1_2026-09-19_04-36-42_20.00sec_-0.00C_LIGHT_0493.fits

Rejecting candidate due to large distance (43.1") between the two second-epoch detections
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-09-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-09-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461302.89998209 -observatory V36
12:49:53.57 -05:40:22.2 Mercury (-0.3mag)
14:01:38.98 -18:31:33.1 Venus (-4.8mag)
07:45:58.01 +22:02:20.5 Mars (1.2mag)
09:18:43.23 +16:15:52.8 Jupiter (-1.8mag)
00:48:41.44 +02:17:35.9 Saturn (0.4mag)
04:13:34.57 +21:01:43.6 Uranus (5.7mag)
00:12:33.59 -00:11:09.9 Neptune (7.7mag)
20:24:51.92 -23:41:55.1 Pluto (14.5mag)
18:05:57.44 -28:02:25.2 Moon (-10.5mag)
-rw-r--r-- 1 apache apache 363 Sep 19 04:43 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461302.89998209:
09:18:50.51 +16:15:16.0 Io (6.0mag)
09:18:43.49 +16:15:51.7 Europa (6.2mag)
09:18:53.56 +16:15:01.2 Ganymede (5.6mag)
09:18:39.79 +16:16:10.4 Callisto (6.8mag)
09:17:00.97 +16:36:37.0 Himalia (15.7mag)
09:18:47.25 +16:15:33.7 Thebe (16.5mag)
09:16:26.81 +16:30:59.0 Elara (17.7mag)
09:22:15.02 +15:40:25.2 Pasiphae (17.9mag)
09:18:55.38 +16:37:01.2 Carme (18.9mag)
00:48:52.84 +02:17:29.4 Titan (8.3mag)
00:48:40.80 +02:17:39.2 Rhea (9.6mag)
00:48:22.18 +02:18:11.5 Iapetus (11.0mag)
00:48:25.27 +02:17:32.4 Hyperion (14.3mag)
00:47:16.45 +02:06:19.8 Phoebe (16.3mag)
-rw-r--r-- 1 apache apache 568 Sep 19 04:44 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461302.89998209:
23:47:19.58 +12:36:37.9 JWST
14:38:33.24 +52:41:53.8 Chandra
12:31:50.05 -62:03:29.0 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 19 04:43 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461302.89998209 -observatory V36
03:45:54.33 +19:48:44.6 17.3mag P/1996 R2 (Lagerkvist)
18:08:29.80 -33:58:36.5 14.5mag P/2010 H2 (Vales)
07:28:02.05 -71:00:11.6 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:38.11 +34:01:26.0 17.7mag C/2017 K2 (PANSTARRS)
05:03:58.18 +47:00:13.1 16.3mag P/2021 N1 (ZTF)
22:04:19.64 +27:05:53.0 17.5mag C/2022 E2 (ATLAS)
07:18:43.01 +25:45:44.1 16.9mag C/2022 N2 (PANSTARRS)
11:00:33.45 +26:49:41.3 17.1mag C/2022 QE78 (ATLAS)
09:56:10.65 +05:09:53.1 18.0mag C/2022 R6 (PANSTARRS)
15:27:25.60 -16:42:18.7 15.0mag C/2023 R1 (PANSTARRS)
08:48:17.35 +33:42:35.6 16.0mag C/2024 E1 (Wierzchos)
15:08:39.85 +15:11:44.1 18.0mag C/2024 G6 (ATLAS)
18:27:50.18 +42:37:40.4 13.7mag C/2024 J3 (ATLAS)
20:10:48.55 +48:27:12.3 17.4mag C/2024 R4 (PANSTARRS)
05:41:12.02 -13:13:13.1 15.0mag C/2024 T5 (ATLAS)
07:14:50.39 +16:02:45.6 17.8mag C/2025 J1 (Borisov)
11:37:58.61 +17:48:17.5 16.6mag C/2025 V2 (Rankin)
13:30:01.28 -00:52:35.7 16.7mag C/2025 Y1 (ATLAS)
17:17:56.50 +71:45:33.2 16.5mag C/2026 A2 (Bok)
02:57:58.13 +45:33:46.9 17.6mag C/2026 B2 (Sun-Gao)
12:24:37.13 +12:16:34.8 17.6mag A/2026 E1
22:36:21.18 -35:01:54.3 13.7mag 10P/Tempel
01:38:18.08 +39:01:02.7 17.4mag 11P/Tempel-Swift-LINEAR
11:56:20.43 -06:23:51.4 16.3mag 29P/Schwassmann-Wachmann
12:32:56.15 -08:52:12.6 17.8mag 63P/Wild
07:01:41.37 +18:13:56.8 17.1mag 78P/Gehrels
03:15:29.54 +15:00:37.7 16.8mag 88P/Howell
06:19:34.60 +33:07:38.6 17.3mag 112P/Urata-Niijima
08:06:31.38 +21:26:43.8 17.8mag 114P/Wiseman-Skiff
10:54:33.52 +18:14:26.3 14.8mag 123P/West-Hartley
13:13:49.81 -25:26:47.1 17.6mag 124P/Mrkos
06:31:12.68 +20:13:18.7 15.8mag 128P/Shoemaker-Holt
01:23:09.76 -14:43:43.0 14.3mag 161P/Hartley-IRAS
09:34:06.06 +07:54:35.9 12.6mag 169P/NEAT
03:31:42.26 +07:18:16.9 14.6mag 220P/McNaught
05:19:11.46 +39:51:54.9 15.3mag 260P/McNaught
09:03:15.18 +34:17:51.5 17.3mag 295P/LINEAR
15:33:42.35 -01:35:27.9 17.9mag 391P/Kowalski
09:38:01.02 +16:14:23.7 17.8mag 450P/LONEOS
-rw-r--r-- 1 apache apache 1.9K Sep 19 04:43 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
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
18:25:12.79 -22:25:29.10  V8055  2026-08-30 10.76
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
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
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
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
-rw-r--r-- 1 apache apache 5.7K Sep 19 04:43 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
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
-rw-r--r-- 1 apache apache 190K Sep 19 04:43 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
14:45:20.862 -05:19:19.97  AT 2026aacc  2026-08-23.15 19.4444
15:56:38.169 +18:42:01.63  SN 2026aacb  2026-08-29.18 19.5538
20:55:37.041 -01:27:15.88  AT 2026aaca  2026-08-30.60 19.51
14:43:57.052 -18:28:53.81  SN 2026aabz  2026-08-30.23 18.705
13:37:12.730 -32:27:40.17  AT 2026aaby  2026-08-30.72 18.545
06:50:17.864 +20:05:46.74  AT 2026aabx  2026-08-30.61 17.869
05:36:22.321 -31:19:59.16  AT 2026aabw  2026-08-30.79 18.65
17:26:25.715 +35:28:47.48  AT 2026aabv  2026-08-30.35 18.678
03:41:51.198 -40:54:09.63  AT 2026aabu  2026-08-22.78 20.13
15:50:13.320 -33:32:57.31  AT 2026aabt  2026-08-29.37 19.72
01:18:28.460 -27:05:47.26  SN 2026aabs  2026-08-27.78 19.28
22:23:15.798 -29:48:02.93  AT 2026aabr  2026-08-30.57 19.11
23:23:45.523 -29:23:36.22  SN 2026aabq  2026-08-23.58 19.7
22:48:33.213 -45:12:00.11  AT 2026aabp  2026-08-30.61 18.75
00:44:54.260 +41:33:10.49  AT 2026aabo  2026-08-29.40 18.5784
01:36:46.683 +30:41:53.77  AT 2026aabn  2026-08-28.69 20.82
01:39:53.640 +34:03:40.40  AT 2026aabm  2026-08-26.73 20.83
00:25:36.720 +41:26:16.16  AT 2026aabl  2026-08-26.72 20.57
00:06:22.110 +41:47:11.52  AT 2026aabk  2026-08-23.72 21.3
16:34:18.591 +32:50:04.19  AT 2026aabj  2026-08-23.59 21.08
-rw-r--r-- 1 apache apache 89K Sep 19 04:43 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sat Sep 19 04:43:33 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 4s (0.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 24s (0.40 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 6s (0.10 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 38s (0.63 min)
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 11s (0.18 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 0s (0.00 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 1s (0.02 min)
    MAGNITUDE_CALIBRATION: 10s (0.17 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: 24s (0.40 min)
FIELD_UMa-09-Q2b1x1: 75s (1.25 min)
=======================================
TOTAL_RUNTIME: 78s (1.30 min)
Finished: Sat Sep 19 04:44:51 CDT 2026