FITS images used in this processing run:

Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461311.91357146 28.09.2026 09:55:22.574   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.25
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  5444
Objects passed selection criteria:  5410
Measurements per detected object (mean, median, min, max):    2.6    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.6    2.0    2    4
Average stars detected per image: 3657.75
Average stars matched: 3584.25 (97.9906 %)
Memory usage VmPeak:   232468 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 25 15:05:03 CDT 2026
VaST build number  1.0rc89-225-g3a72982a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-25)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Sep 28 06:56:56 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461311.91357146 28.09.2026 09:55:22.574   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 9
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -6.97
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  28123
Objects passed selection criteria:  28034
Measurements per detected object (mean, median, min, max):    2.8    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.8    2.0    2    4
Average stars detected per image: 20522.5
Average stars matched: 19879.5 (96.8669 %)
Memory usage VmPeak:   254084 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 25 15:05:03 CDT 2026
VaST build number  1.0rc89-225-g3a72982a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-25)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Sep 28 06:57:37 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-04-Q2b1x1
#######################################
########### Starting UMa-04-Q2b1x1 ###########
Processing UMa-04-Q2b1x1
server tau has sufficient free disk space available: 704656 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 704656 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.png' -> 'transient_report/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits_preview.png'

UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits


renamed 'UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.png' -> 'transient_report/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits_preview.png'

UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 482.7200
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 528.8252
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 4839.8227
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1114.7023
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4831.6887
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1154.3445
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 10.0261
INFO:                  SECOND_EPOCH__SD_ratio= 0.034
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 =     16.8099994659424 / [degC] Focuser temperature
AMBTEMP =                 17.3 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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= '2026-09-28T04:53:57.9777387' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-28T09:53:57.9777387' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61311.4124765857 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-28T09:54:07.8820874' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61311.4125912269 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     179.996074757817 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9995163711706 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.8561111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     23.0952777777778 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.84551279500998 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20661 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20661 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     16.8099994659424 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     16.8099994659424 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 74.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.81 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 17.3 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                211.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             7.200576 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.800544 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/d_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits :)

Spent 0.627279 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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/d_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     16.9400005340576 / [degC] Focuser temperature
AMBTEMP =                 17.3 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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= '2026-09-28T04:55:22.5742251' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-28T09:55:22.5742251' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61311.4134557177 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-28T09:55:32.4780159' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61311.4135703472 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     179.996074760593 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9995164605683 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9708333333333 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     23.2186111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.81757573971762 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20661 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20661 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     16.9400005340576 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     16.9400005340576 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 74.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.81 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 17.3 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                211.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             7.200576 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.800544 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/d_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits :)

Spent 0.637491 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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/d_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits



fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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: 2461311.91259233
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 12:00:03.636 +62:00:23.32 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Image size: 939.9'x625.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 12:00:03.516 +62:00:10.89 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:03.516 +62:00:10.89
Angular distance between the image centers 0.0035 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Image size: 939.9'x624.9'  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: 12:00:07.686 +62:00:43.91 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:07.686 +62:00:43.91
Angular distance between the image centers 0.0098 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  12:00:03.516 +62:00:10.89
Second-epoch second image center 12:00:07.686 +62:00:43.91
Angular distance between the image centers 0.01227 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.8G5lnXwEOE
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.Z1IG0eKv1y
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits &> /tmp/tmp.oMAIvHblZx
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits &> /tmp/tmp.yM21hGJ2JR
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 7332 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.4317 deg, Dec +55.2640 to +67.4533 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.4317 deg, Dec 55.2640 to 67.4533 deg
Loaded 6574 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3976 out of 4190 total matches.
Matched with Tycho-2 4190 out of 7332 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.890400
a=0.000000 b=1.000000 c=22.890400
From vast_summary.log: estimated ref. image limiting mag.:  -7.25
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.64

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

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7332 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.4317 deg, Dec +55.2640 to +67.4533 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.4317 deg, Dec 55.2640 to 67.4533 deg
Loaded 6574 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3976 out of 4190 total matches.
Matched with Tycho-2 4190 out of 7332 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits via Tycho-2

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


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (aperture=6.3)
Read 7282 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9723 to 198.4317 deg, Dec +55.3313 to +67.4947 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9723 to 198.4317 deg, Dec 55.3313 to 67.4947 deg
Loaded 6542 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3979 out of 4176 total matches.
Matched with Tycho-2 4176 out of 7282 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits via Tycho-2

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=6.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.3 pix  fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
 2.3 pix  fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Limiting magnitude estimates:
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 13.9 mag.  fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
 13.9 mag.  fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
All-image limiting magnitude estimate:  13.9 (SNR )  10.9 (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.8G5lnXwEOE (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=506, bad_region=1672, passed=7332
Got 7332 stars (including 5274 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 7332 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 4895 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 6037 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4895 stars left (next iteration limit 5384)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4895 sigma_overall_arcsec=0.383 sigma_q1_arcsec=0.450 sigma_q2_arcsec=0.405 sigma_q3_arcsec=0.341 sigma_q4_arcsec=0.345 n_q1=1452 n_q2=848 n_q3=1641 n_q4=954 worst_quadrant_to_overall_ratio=1.173
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.Z1IG0eKv1y (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=494, bad_region=1659, passed=7282
Got 7282 stars (including 5242 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 7282 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4903 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 4898 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4903 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 4898 matched stars entering correct_measured_positions(), 5987 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4898 stars left (next iteration limit 5387)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4898 sigma_overall_arcsec=0.417 sigma_q1_arcsec=0.480 sigma_q2_arcsec=0.441 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.397 n_q1=1451 n_q2=838 n_q3=1650 n_q4=959 worst_quadrant_to_overall_ratio=1.152
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.oMAIvHblZx (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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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=241, bad_region=409, passed=2117
Got 2117 stars (including 1523 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat 
util/solve_plate_with_UCAC5 got 2117 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.9'
Seting catalog search parameters based on the expected field of view 939.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013054 (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 0.010443 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 1493 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1490 matched stars entering correct_measured_positions(), 1490 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1490 matched stars entering correct_measured_positions(), 1777 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 1493 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1490 matched stars entering correct_measured_positions(), 1777 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 1490 matched stars entering correct_measured_positions(), 1777 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
Excluding outliers - 1490 stars left (next iteration limit 1639)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1490 robust_rms=7.090 arcsec worst_region_rms=9.832 arcsec outer_annulus_rms=9.832 arcsec
SIP_REFIT: SIP order 3 trial: matched=1490 robust_rms=0.776 arcsec worst_region_rms=1.196 arcsec outer_annulus_rms=0.559 arcsec
SIP_REFIT: SIP order 5 trial: matched=1490 robust_rms=0.573 arcsec worst_region_rms=0.803 arcsec outer_annulus_rms=0.588 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1490 robust_rms_before=1.572 arcsec robust_rms_before_corrected=0.428 arcsec robust_rms_after=0.573 arcsec worst_region_rms_before=0.534 worst_region_rms_after=0.803 outer_annulus_rms_before=1.525 outer_annulus_rms_after=0.588
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.534 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits worst_region_rms_kept=0.534 arcsec robust_rms_kept=0.428 arcsec matched=1490
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits N_match=1490 sigma_overall_arcsec=0.451 sigma_q1_arcsec=0.450 sigma_q2_arcsec=0.581 sigma_q3_arcsec=0.420 sigma_q4_arcsec=0.411 n_q1=483 n_q2=223 n_q3=497 n_q4=287 worst_quadrant_to_overall_ratio=1.287
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits -region wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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.yM21hGJ2JR (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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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=213, bad_region=396, passed=2102
Got 2102 stars (including 1522 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat 
util/solve_plate_with_UCAC5 got 2102 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.9'
Seting catalog search parameters based on the expected field of view 939.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013054 (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 0.010443 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 1494 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1487 matched stars entering correct_measured_positions(), 1487 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1487 matched stars entering correct_measured_positions(), 1765 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 1493 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1487 matched stars entering correct_measured_positions(), 1765 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.42" 
Accuracy estimation diagnostic: 1487 matched stars entering correct_measured_positions(), 1765 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 1487 stars left (next iteration limit 1635)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1487 robust_rms=7.078 arcsec worst_region_rms=10.305 arcsec outer_annulus_rms=10.305 arcsec
SIP_REFIT: SIP order 3 trial: matched=1487 robust_rms=0.623 arcsec worst_region_rms=0.831 arcsec outer_annulus_rms=0.580 arcsec
SIP_REFIT: SIP order 5 trial: matched=1487 robust_rms=0.445 arcsec worst_region_rms=0.535 arcsec outer_annulus_rms=0.535 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1487 robust_rms_before=1.596 arcsec robust_rms_before_corrected=0.432 arcsec robust_rms_after=0.445 arcsec worst_region_rms_before=0.516 worst_region_rms_after=0.535 outer_annulus_rms_before=1.626 outer_annulus_rms_after=0.535
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.516 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits worst_region_rms_kept=0.516 arcsec robust_rms_kept=0.432 arcsec matched=1487
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits N_match=1487 sigma_overall_arcsec=0.432 sigma_q1_arcsec=0.440 sigma_q2_arcsec=0.527 sigma_q3_arcsec=0.396 sigma_q4_arcsec=0.416 n_q1=486 n_q2=221 n_q3=494 n_q4=286 worst_quadrant_to_overall_ratio=1.220
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits -region wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits sigma_overall=0.383 worst_q_ratio=1.173
ref2=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits sigma_overall=0.417 worst_q_ratio=1.152
new1=fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits sigma_overall=0.451 worst_q_ratio=1.287
new2=fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits sigma_overall=0.432 worst_q_ratio=1.220
reference average sigma_overall=0.4 worst_q_ratio=1.1625
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

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


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


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494_astrometric_residuals.png (1490 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.39 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495_astrometric_residuals.png (1487 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.39 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits'
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits'
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 12:00:03.636 +62:00:23.32 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Image size: 939.9'x625.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 12:00:03.516 +62:00:10.89 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:03.516 +62:00:10.89
Angular distance between the image centers 0.0035 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Image size: 939.9'x624.9'  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: 12:00:07.686 +62:00:43.91 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:07.686 +62:00:43.91
Angular distance between the image centers 0.0098 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  12:00:03.516 +62:00:10.89
Second-epoch second image center 12:00:07.686 +62:00:43.91
Angular distance between the image centers 0.01227 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.J9Jn4ECZ4L
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.usTABgIorZ
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits &> /tmp/tmp.wu99HFNFBO
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits &> /tmp/tmp.JZnp4TlXc5
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 37333 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.6786 deg, Dec +55.2253 to +67.4860 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.6786 deg, Dec 55.2253 to 67.4860 deg
Loaded 6642 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3749 out of 4194 total matches.
Matched with Tycho-2 4194 out of 37333 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.782200
a=0.000000 b=1.000000 c=22.782200
From vast_summary.log: estimated ref. image limiting mag.:  -6.97
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.81

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

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 37333 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.6786 deg, Dec +55.2253 to +67.4860 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.6786 deg, Dec 55.2253 to 67.4860 deg
Loaded 6642 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3749 out of 4194 total matches.
Matched with Tycho-2 4194 out of 37333 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits via Tycho-2

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


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (aperture=5.0)
Read 37494 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9724 to 198.6777 deg, Dec +55.2649 to +67.4946 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9724 to 198.6777 deg, Dec 55.2649 to 67.4946 deg
Loaded 6625 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3749 out of 4189 total matches.
Matched with Tycho-2 4189 out of 37494 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits via Tycho-2

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=5.0)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 4 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.2 pix  fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
 2.2 pix  fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Limiting magnitude estimates:
 15.8 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.8 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 14.1 mag.  fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
 14.1 mag.  fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
All-image limiting magnitude estimate:  14.1 (SNR )  13.4 (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.J9Jn4ECZ4L (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=17, blended=1765, bad_region=7377, passed=37316
Got 37316 stars (including 28488 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 37316 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.2 to 67.5)
Done reading UCAC5 zone files...
Matched 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.2 to 67.5)
Done reading UCAC5 zone files...
Matched 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 31483 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4899 stars left (next iteration limit 5388)
Stop iterations.


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4899 sigma_overall_arcsec=0.367 sigma_q1_arcsec=0.432 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.330 sigma_q4_arcsec=0.338 n_q1=1449 n_q2=842 n_q3=1676 n_q4=932 worst_quadrant_to_overall_ratio=1.178
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.usTABgIorZ (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=16, blended=1739, bad_region=7420, passed=37478
Got 37478 stars (including 28617 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 37478 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 4900 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 726 to 789 (Dec 55.3 to 67.5)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 31620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4900 stars left (next iteration limit 5390)
Stop iterations.


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4900 sigma_overall_arcsec=0.393 sigma_q1_arcsec=0.451 sigma_q2_arcsec=0.417 sigma_q3_arcsec=0.363 sigma_q4_arcsec=0.362 n_q1=1448 n_q2=847 n_q3=1676 n_q4=929 worst_quadrant_to_overall_ratio=1.148
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.wu99HFNFBO (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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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=2, blended=435, bad_region=1828, passed=13173
Got 13173 stars (including 11016 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat 
util/solve_plate_with_UCAC5 got 13173 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.9'
Seting catalog search parameters based on the expected field of view 939.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013054 (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 0.010443 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 4885 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 4881 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 11829 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 4886 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 11829 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 11829 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Excluding outliers - 4881 stars left (next iteration limit 5369)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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=4881 robust_rms=6.923 arcsec worst_region_rms=9.888 arcsec outer_annulus_rms=9.888 arcsec
SIP_REFIT: SIP order 3 trial: matched=4881 robust_rms=0.820 arcsec worst_region_rms=1.187 arcsec outer_annulus_rms=0.711 arcsec
SIP_REFIT: SIP order 5 trial: matched=4881 robust_rms=0.631 arcsec worst_region_rms=0.844 arcsec outer_annulus_rms=0.682 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4881 robust_rms_before=1.589 arcsec robust_rms_before_corrected=0.490 arcsec robust_rms_after=0.631 arcsec worst_region_rms_before=0.596 worst_region_rms_after=0.844 outer_annulus_rms_before=1.568 outer_annulus_rms_after=0.682
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.596 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits worst_region_rms_kept=0.596 arcsec robust_rms_kept=0.490 arcsec matched=4881
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits N_match=4881 sigma_overall_arcsec=0.488 sigma_q1_arcsec=0.510 sigma_q2_arcsec=0.529 sigma_q3_arcsec=0.477 sigma_q4_arcsec=0.451 n_q1=1540 n_q2=719 n_q3=1689 n_q4=933 worst_quadrant_to_overall_ratio=1.084
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits -region wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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.JZnp4TlXc5 (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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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=428, bad_region=1759, passed=13051
Got 13051 stars (including 10930 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat 
util/solve_plate_with_UCAC5 got 13051 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.9'
Seting catalog search parameters based on the expected field of view 939.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013054 (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 0.010443 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4875 matched stars entering correct_measured_positions(), 4875 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4875 matched stars entering correct_measured_positions(), 11723 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 728 to 788 (Dec 55.7 to 67.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4876 matched stars entering correct_measured_positions(), 11723 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Accuracy estimation diagnostic: 4876 matched stars entering correct_measured_positions(), 11723 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 4876 stars left (next iteration limit 5362)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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=4876 robust_rms=6.992 arcsec worst_region_rms=9.870 arcsec outer_annulus_rms=9.870 arcsec
SIP_REFIT: SIP order 3 trial: matched=4876 robust_rms=0.695 arcsec worst_region_rms=0.905 arcsec outer_annulus_rms=0.665 arcsec
SIP_REFIT: SIP order 5 trial: matched=4876 robust_rms=0.534 arcsec worst_region_rms=0.632 arcsec outer_annulus_rms=0.632 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4876 robust_rms_before=1.616 arcsec robust_rms_before_corrected=0.483 arcsec robust_rms_after=0.534 arcsec worst_region_rms_before=0.600 worst_region_rms_after=0.632 outer_annulus_rms_before=1.626 outer_annulus_rms_after=0.632
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.600 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits worst_region_rms_kept=0.600 arcsec robust_rms_kept=0.483 arcsec matched=4876
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits N_match=4876 sigma_overall_arcsec=0.471 sigma_q1_arcsec=0.475 sigma_q2_arcsec=0.574 sigma_q3_arcsec=0.459 sigma_q4_arcsec=0.432 n_q1=1536 n_q2=691 n_q3=1719 n_q4=930 worst_quadrant_to_overall_ratio=1.219
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits -region wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.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_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/wcs_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
WARNING: the installed astorb.dat is only 24 bytes, far below the 30000000 bytes expected - it is incomplete and will be re-downloaded
######### Updating astorb.dat #########
### download command ###
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198
curl  --connect-timeout 10 --retry 1 --retry-delay 30 --speed-limit 100 --speed-time 30 --max-time 3600 --insecure --continue-at - --output astorb_dat_new.gz https://kirx.net/~kirx/vast_catalogs/astorb.dat.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
  0 108.3M   0 460.8k   0      0 460.9k      0   04:00           04:00 461.0k
 17 108.3M  17 18.65M   0      0  9.32M      0   00:11   00:02   00:09  9.32M
 38 108.3M  38 42.20M   0      0 14.06M      0   00:07   00:03   00:04 14.06M
 60 108.3M  60 65.44M   0      0 16.35M      0   00:06   00:04   00:02 16.35M
 82 108.3M  82 89.11M   0      0 17.81M      0   00:06   00:05   00:01 17.81M
100 108.3M 100 108.3M   0      0 18.64M      0   00:05   00:05         17.81M
100 108.3M 100 108.3M   0      0 18.64M      0   00:05   00:05         17.81M
100 108.3M 100 108.3M   0      0 18.64M      0   00:05   00:05         17.81M
TMP_OUTPUT=astorb_dat_new
### UNPACK_COMMAND ###
We are currently at /data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198
Will run the unpack command: gunzip astorb_dat_new.gz
Unpack complete
Moved astorb_dat_new to astorb.dat
Successfully updated astorb.dat
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 11:54:23.12 +61:01:49.2:  13.19 +/- 0.03  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 11:54:23.12 +61:01:49.2:  13.30 +/- 0.03  detection
Forced photometry reference-image weighted average:  13.25 +/- 0.02
Forced photometry filter REJECTED candidate at 11:54:23.12 +61:01:49.2: ref_mag=13.25 +/- 0.02 new_mean_mag=13.3224 delta=-0.08 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 9s
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 52232_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495
The candidate 52232_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495 did not pass the final checks
Discovery image 2     2026 09 28.41357    2461311.91357    12.55    11:04:04.06 +61:47:49.9   0815 3664   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits

**** FOUND  11:04:04.14 +61:47:50.1 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 52298_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495
The candidate 52298_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495 did not pass the final checks
Discovery image 2     2026 09 28.41357    2461311.91357    12.95    11:40:23.02 +57:57:08.6   3098 0866   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits

**** FOUND  11:40:23.05 +57:57:09.2 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52311_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495
The candidate 52311_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495 did not pass the final checks
Discovery image 2     2026 09 28.41357    2461311.91357    13.07    11:30:26.75 +63:33:02.9   2843 4322   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits

**** FOUND  11:30:26.80 +63:33:02.6 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 52406_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495
The candidate 52406_fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495 did not pass the final checks
Discovery image 1     2026 09 28.41259    2461311.91259    13.34    11:54:23.14 +61:01:48.8   4349 2631   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-53-57_20.00sec_-0.00C_LIGHT_0494.fits
Discovery image 2     2026 09 28.41357    2461311.91357    13.31    11:54:23.10 +61:01:49.6   4344 2626   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMa-04-Q2b1x1_065431_TTUQ2b1x1_2836506_2UUiL198/fd_UMa-04-Q2b1x1_2026-09-28_04-55-22_20.00sec_-0.00C_LIGHT_0495.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 9s
Prepared the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed UMa-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461311.91259233 -observatory V36
13:37:23.32 -11:40:13.5 Mercury (-0.1mag)
14:11:48.70 -20:29:57.9 Venus (-4.8mag)
08:08:45.75 +21:08:20.2 Mars (1.1mag)
09:25:28.04 +15:45:53.6 Jupiter (-1.9mag)
00:46:10.99 +02:00:55.2 Saturn (0.4mag)
04:13:09.43 +21:00:40.9 Uranus (5.7mag)
00:11:38.73 -00:17:11.1 Neptune (7.7mag)
20:24:28.68 -23:42:58.8 Pluto (14.5mag)
01:31:29.79 +14:05:53.8 Moon (-12.2mag)
-rw-r--r-- 1 apache apache 363 Sep 28 06:56 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461311.91259233:
09:25:33.76 +15:45:23.8 Io (9.4mag)
09:25:27.31 +15:45:59.2 Europa (6.3mag)
09:25:41.83 +15:44:40.1 Ganymede (7.9mag)
09:25:40.06 +15:44:51.4 Callisto (6.9mag)
09:24:17.83 +16:07:51.5 Himalia (15.7mag)
09:25:28.00 +15:45:54.3 Thebe (16.5mag)
09:23:30.42 +16:04:00.1 Elara (17.6mag)
09:28:36.99 +15:09:04.4 Pasiphae (17.8mag)
09:25:00.63 +16:09:32.1 Carme (18.9mag)
00:46:00.01 +02:00:36.8 Titan (8.2mag)
00:46:10.44 +02:00:57.8 Rhea (9.6mag)
00:45:34.23 +01:59:35.8 Iapetus (11.0mag)
00:46:24.88 +02:00:21.1 Hyperion (14.1mag)
00:44:38.63 +01:49:05.5 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep 28 06:57 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461311.91259233:
01:08:34.83 +18:36:31.7 JWST
17:37:51.37 +34:04:51.2 Chandra
06:59:07.07 -02:23:27.4 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 28 06:57 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461311.91259233 -observatory V36
03:47:34.42 +20:02:43.7 17.2mag P/1996 R2 (Lagerkvist)
18:14:17.22 -33:47:22.2 14.6mag P/2010 H2 (Vales)
07:33:30.91 -71:33:43.0 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:43.17 +34:16:34.7 17.7mag C/2017 K2 (PANSTARRS)
05:06:15.07 +47:49:19.7 16.6mag P/2021 N1 (ZTF)
21:58:19.96 +25:49:45.9 17.6mag C/2022 E2 (ATLAS)
07:24:05.25 +25:37:11.5 16.9mag C/2022 N2 (PANSTARRS)
11:08:36.78 +26:35:24.2 17.1mag C/2022 QE78 (ATLAS)
10:01:28.42 +05:07:10.4 18.0mag C/2022 R6 (PANSTARRS)
15:27:12.78 -17:29:01.0 15.1mag C/2023 R1 (PANSTARRS)
08:54:37.06 +34:25:49.2 16.1mag C/2024 E1 (Wierzchos)
15:10:51.63 +15:07:54.7 18.0mag C/2024 G6 (ATLAS)
18:25:58.95 +42:09:41.2 13.8mag C/2024 J3 (ATLAS)
20:01:15.08 +47:36:04.5 17.4mag C/2024 R4 (PANSTARRS)
05:44:06.94 -13:23:03.3 14.9mag C/2024 T5 (ATLAS)
11:53:33.67 +17:04:00.5 16.4mag C/2025 V2 (Rankin)
13:38:18.68 -01:37:50.7 16.6mag C/2025 Y1 (ATLAS)
17:50:40.89 +69:33:04.4 16.3mag C/2026 A2 (Bok)
02:49:55.86 +44:50:19.7 17.7mag C/2026 B2 (Sun-Gao)
12:33:12.08 +13:02:44.6 17.6mag A/2026 E1
22:44:46.85 -34:04:42.6 14.0mag 10P/Tempel
01:51:59.46 +39:38:01.1 17.1mag 11P/Tempel-Swift-LINEAR
12:02:27.93 -07:06:44.5 16.3mag 29P/Schwassmann-Wachmann
12:51:04.64 -11:35:42.3 17.9mag 63P/Wild
07:16:45.99 +17:21:49.9 17.1mag 78P/Gehrels
03:10:54.31 +14:50:14.1 16.9mag 88P/Howell
06:51:39.74 +36:14:19.7 17.2mag 112P/Urata-Niijima
08:30:38.72 +18:36:26.3 17.8mag 114P/Wiseman-Skiff
11:13:54.53 +16:13:13.0 14.8mag 123P/West-Hartley
13:34:56.64 -28:20:22.8 17.7mag 124P/Mrkos
06:40:11.23 +19:51:49.0 15.7mag 128P/Shoemaker-Holt
23:55:34.34 -08:51:47.3 13.8mag 161P/Hartley-IRAS
09:48:05.20 +05:00:59.0 13.2mag 169P/NEAT
03:33:06.94 +06:14:43.9 14.7mag 220P/McNaught
05:39:39.99 +42:12:07.7 15.4mag 260P/McNaught
09:42:24.41 +32:29:29.5 18.0mag 493P/LONEOS
-rw-r--r-- 1 apache apache 1.8K Sep 28 06:56 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:39:17.45 -28:06:12.40  ASASSN-26fg  2026-09-23.25 15.73
05:25:07.80 +04:38:32.40  SN2026aajs  2026-09-21.32 17.04
19:56:12.67 +08:25:27.70  AT2026acgs  2026-09-18.14 15.84
00:02:34.07 +52:55:19.10  ASASSN-26ff  2026-09-16.43 15.37
23:44:33.18 +17:46:12.20  SN2026yjv  2026-09-15.38 18.32
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.59 +34:24:35.70  SN2026aaiv  2026-09-7.22 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.79 -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
-rw-r--r-- 1 apache apache 5.7K Sep 28 06:56 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
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
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
-rw-r--r-- 1 apache apache 191K Sep 28 06:56 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
21:20:34.008 -69:26:22.42  AT 2026aayq  2026-09-08.14 19.278
23:31:25.083 +50:11:28.08  AT 2026aayp  2026-09-08.03 18.91
15:33:30.416 +55:53:51.32  AT 2026aayo  2026-09-07.86 19.147
01:26:46.581 -53:40:22.70  AT 2026aayn  2026-09-08.18 18.623
23:20:37.556 -72:55:19.50  AT 2026aaym  2026-09-08.26 19.286
01:34:19.085 -73:36:50.07  AT 2026aayl  2026-09-08.24 18.806
20:58:26.639 -11:47:36.65  AT 2026aayk  2026-09-07.88 19.055
05:39:08.544 -26:08:36.47  AT 2026aayj  2026-09-08.77 19.74
04:04:28.836 -41:00:50.05  AT 2026aayi  2026-09-08.68 19.15
00:14:57.069 -42:30:24.15  AT 2026aayh  2026-09-08.56 19.71
21:17:59.994 -44:20:12.59  AT 2026aayg  2026-09-08.49 19.61
05:02:23.770 -53:02:16.78  AT 2026aayf  2026-09-08.79 19.88
00:20:27.819 -47:45:21.71  AT 2026aaye  2026-09-06.60 20.33
20:09:14.246 -31:36:02.01  AT 2026aayd  2026-09-01.43 20.28
20:55:12.341 -52:51:47.51  AT 2026aayc  2026-09-08.14 19.299
20:19:25.725 -32:15:17.38  AT 2026aayb  2026-08-20.52 19.12
23:05:53.383 -45:39:19.79  AT 2026aaya  2026-09-04.58 20.06
00:14:31.763 -49:54:27.22  AT 2026aaxz  2026-09-04.61 20.03
01:12:19.993 -37:57:49.91  AT 2026aaxy  2026-09-04.62 20.15
22:04:50.285 -46:53:46.94  AT 2026aaxx  2026-09-06.57 19.67
-rw-r--r-- 1 apache apache 89K Sep 28 06:56 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Sep 28 06:56:36 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 26s (0.43 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 5s (0.08 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 37s (0.62 min)
TIMING SExtractor: 4 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 7s (0.12 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 7s (0.12 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 9s (0.15 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 25s (0.42 min)
FIELD_UMa-04-Q2b1x1: 78s (1.30 min)
=======================================
TOTAL_RUNTIME: 79s (1.32 min)
Finished: Mon Sep 28 06:57:55 CDT 2026