FITS images used in this processing run:

Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Field UMi-02-Q2b1x1 reference image: UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
First image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Last  image: 2461337.69337606 24.10.2026 04:38:17.692   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.29
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 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):  5868
Objects passed selection criteria:  5842
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: 3966.75
Average stars matched: 3879 (97.7879 %)
Memory usage VmPeak:   239108 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.20(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Oct 23 23:43:34 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: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
First image: 2461149.86733143 19.04.2026 08:48:47.436   /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Last  image: 2461337.69337606 24.10.2026 04:38:17.692   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 15
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.02
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 9 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):  32298
Objects passed selection criteria:  32211
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: 23777.5
Average stars matched: 23093.2 (97.1223 %)
Memory usage VmPeak:   257804 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.20(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Oct 23 23:44:23 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: 
UMi-02-Q2b1x1
#######################################
########### Starting UMi-02-Q2b1x1 ###########
Processing UMi-02-Q2b1x1
server tau has sufficient free disk space available: 459632 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 459632 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.png' -> 'transient_report/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits_preview.png'

UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits


renamed 'UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.png' -> 'transient_report/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits_preview.png'

UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 522.6192
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 519.1383
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 4831.1290
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1023.4110
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4862.0041
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1034.3253
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 9.24407
INFO:                  SECOND_EPOCH__SD_ratio= 0.011
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 =     16.4099998474121 / [degC] Focuser temperature
AMBTEMP =                 16.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-10-23T23:37:32.8776714' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-24T04:37:32.8776714' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =      61337.192741632 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-24T04:37:42.7806746' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61337.1928562499 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                  0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     215.998787036083 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9998786391631 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     16.8902777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     347.766944444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.40502954972139 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20708 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20708 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     16.4099998474121 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     16.4099998474121 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.5 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 16.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             8.300664 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/d_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits :)

Spent 0.655696 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/d_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     16.3700008392334 / [degC] Focuser temperature
AMBTEMP =                 16.8 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-10-23T23:38:17.6922918' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-24T04:38:17.6922918' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61337.1932603242 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-24T04:38:27.5960673' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61337.1933749537 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     215.998787066062 / [deg] RA of telescope" status=0
Record 32: "DEC     =      69.999878685875 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     16.8577777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     347.823888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.41125030002978 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMi-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '14 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20708 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20708 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     16.3700008392334 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     16.3700008392334 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.5 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 71.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 16.8 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                  4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             8.300664 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/d_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits :)

Spent 0.593234 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/d_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Previews of the CALIBRATED second-epoch images:


fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits



fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
  
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.cat to cache
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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: 2461337.69285737
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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits exists and is non-empty
wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (1st reference image)
verification OK: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Image size: 937.5'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 14:24:01.593 +69:59:33.71 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Image size: 937.7'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:23:53.749 +69:56:38.61 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:23:53.749 +69:56:38.61
Angular distance between the image centers 0.0499 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Image size: 937.7'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:23:54.310 +69:57:10.00 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:23:54.310 +69:57:10.00
Angular distance between the image centers 0.0413 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  14:23:53.749 +69:56:38.61
Second-epoch second image center 14:23:54.310 +69:57:10.00
Angular distance between the image centers 0.00876 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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits &> /tmp/tmp.YjeaB4S9tE
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits &> /tmp/tmp.mtIDsos5I4
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits &> /tmp/tmp.pZOhR4IntO
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits &> /tmp/tmp.F4HVXTAFp7
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat
The reference image (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits) and catalog (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat) found
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat' -> 'wcsmag.cat'
Read 7945 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9719 to 243.8628 deg, Dec +63.6716 to +75.2389 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 187.9719 to 243.8628 deg, Dec 63.6716 to 75.2389 deg
Loaded 8088 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): 4821 out of 4988 total matches.
Matched with Tycho-2 4988 out of 7945 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.724700
a=0.000000 b=1.000000 c=22.724700
From vast_summary.log: estimated ref. image limiting mag.:  -7.29
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.43

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.43

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7945 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9719 to 243.8628 deg, Dec +63.6716 to +75.2389 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 187.9719 to 243.8628 deg, Dec 63.6716 to 75.2389 deg
Loaded 8088 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): 4821 out of 4988 total matches.
Matched with Tycho-2 4988 out of 7945 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (aperture=6.3)
Read 7905 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9736 to 243.8628 deg, Dec +63.6717 to +75.2223 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 187.9736 to 243.8628 deg, Dec 63.6717 to 75.2223 deg
Loaded 8080 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): 4832 out of 4997 total matches.
Matched with Tycho-2 4997 out of 7905 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (aperture=6.3)
____ 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:
 2.4 pix  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 2.4 pix  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 2.3 pix  fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
 2.3 pix  fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Limiting magnitude estimates:
 15.4 mag.  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 15.4 mag.  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 13.8 mag.  fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
 13.7 mag.  fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
All-image limiting magnitude estimate:  13.7 (SNR )  10.7 (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.YjeaB4S9tE (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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=497, bad_region=1747, passed=7945
Got 7945 stars (including 5791 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
util/solve_plate_with_UCAC5 got 7945 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 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 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 4893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 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 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 6565 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4893 stars left (next iteration limit 5382)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits N_match=4893 sigma_overall_arcsec=0.363 sigma_q1_arcsec=0.332 sigma_q2_arcsec=0.358 sigma_q3_arcsec=0.394 sigma_q4_arcsec=0.383 n_q1=1741 n_q2=835 n_q3=1536 n_q4=781 worst_quadrant_to_overall_ratio=1.088
WCS_HEADER_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits selection=current_pairs N_selected=4893 N_valid=4893 bias_ra_arcsec=-0.023 bias_dec_arcsec=-0.011 median_sep_arcsec=0.307 p95_sep_arcsec=0.906 n_q1=1741 n_q2=835 n_q3=1536 n_q4=781 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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.mtIDsos5I4 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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=492, bad_region=1720, passed=7905
Got 7905 stars (including 5780 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
util/solve_plate_with_UCAC5 got 7905 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 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 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 4888 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

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 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 6551 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4888 stars left (next iteration limit 5376)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits N_match=4888 sigma_overall_arcsec=0.362 sigma_q1_arcsec=0.318 sigma_q2_arcsec=0.377 sigma_q3_arcsec=0.401 sigma_q4_arcsec=0.390 n_q1=1726 n_q2=841 n_q3=1532 n_q4=789 worst_quadrant_to_overall_ratio=1.107
WCS_HEADER_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits selection=current_pairs N_selected=4888 N_valid=4888 bias_ra_arcsec=-0.021 bias_dec_arcsec=-0.014 median_sep_arcsec=0.299 p95_sep_arcsec=0.926 n_q1=1726 n_q2=841 n_q3=1532 n_q4=789 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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.pZOhR4IntO (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=219, bad_region=450, passed=2258
Got 2258 stars (including 1618 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat 
util/solve_plate_with_UCAC5 got 2258 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 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 767 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1584 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1578 matched stars entering correct_measured_positions(), 1578 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1578 matched stars entering correct_measured_positions(), 1892 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

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 767 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1584 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1579 matched stars entering correct_measured_positions(), 1892 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 1579 matched stars entering correct_measured_positions(), 1892 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 1579 stars left (next iteration limit 1735)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1579 robust_rms=7.040 arcsec worst_region_rms=10.631 arcsec outer_annulus_rms=10.631 arcsec
SIP_REFIT: SIP order 3 trial: matched=1579 robust_rms=0.524 arcsec worst_region_rms=0.714 arcsec outer_annulus_rms=0.714 arcsec
SIP_REFIT: SIP order 5 trial: matched=1579 robust_rms=0.351 arcsec worst_region_rms=0.480 arcsec outer_annulus_rms=0.480 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1579 robust_rms_before=0.810 arcsec robust_rms_before_corrected=0.359 arcsec robust_rms_after=0.351 arcsec worst_region_rms_before=0.551 worst_region_rms_after=0.480 outer_annulus_rms_before=0.891 outer_annulus_rms_after=0.480
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.sip_refit.jMBq4l/candidate.fits
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.sip_refit.jMBq4l/candidate.fits
Image size: 938.0'x625.0'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:23:53.619 +69:56:38.22 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 2258 stars ###
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.sip_refit.jMBq4l/candidate.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction_225525.cat.log'
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.sip_refit.jMBq4l/candidate.wcscat.xy2sky.rpBQOn' -> 'vast_debug_catalog_after_xy2sky_correction_225525.cat.log'
SIP_REFIT: applied the refit solution (order 5, robust RMS 0.810 -> 0.351 arcsec)
SIP_REFIT: re-matching the catalog with the refit solution (cycle 1, search radius 3.0 arcsec, 1579 pairs from the previous matching)
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 767 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1530 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
SIP_REFIT: re-match found 1530 pairs (1579 from the previous matching)
SIP_REFIT: SIP order 2 trial: matched=1530 robust_rms=7.044 arcsec worst_region_rms=11.106 arcsec outer_annulus_rms=11.106 arcsec
SIP_REFIT: SIP order 3 trial: matched=1530 robust_rms=0.522 arcsec worst_region_rms=0.723 arcsec outer_annulus_rms=0.723 arcsec
SIP_REFIT: SIP order 5 trial: matched=1530 robust_rms=0.352 arcsec worst_region_rms=0.487 arcsec outer_annulus_rms=0.487 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1530 robust_rms_before=0.351 arcsec robust_rms_before_corrected=0.351 arcsec robust_rms_after=0.352 arcsec worst_region_rms_before=0.478 worst_region_rms_after=0.487 outer_annulus_rms_before=0.478 outer_annulus_rms_after=0.487
SIP_REFIT: the refit on the re-matched pairs is worse than the solution it would replace (worst-region 0.487 vs 0.478 arcsec) - keeping the current solution
SIP_REFIT: the refit on the re-matched pairs was not applied - keeping the current solution
Accuracy estimation diagnostic: 1530 matched stars entering correct_measured_positions(), 1891 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 1530 matched stars entering correct_measured_positions(), 1890 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits N_match=1530 sigma_overall_arcsec=0.359 sigma_q1_arcsec=0.352 sigma_q2_arcsec=0.334 sigma_q3_arcsec=0.363 sigma_q4_arcsec=0.404 n_q1=549 n_q2=280 n_q3=484 n_q4=217 worst_quadrant_to_overall_ratio=1.125
WCS_HEADER_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits selection=current_pairs N_selected=1530 N_valid=1530 bias_ra_arcsec=0.000 bias_dec_arcsec=0.003 median_sep_arcsec=0.290 p95_sep_arcsec=0.817 n_q1=549 n_q2=280 n_q3=484 n_q4=217 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits -region wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.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.F4HVXTAFp7 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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=220, bad_region=449, passed=2237
Got 2237 stars (including 1598 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat 
util/solve_plate_with_UCAC5 got 2237 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 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 767 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1564 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1558 matched stars entering correct_measured_positions(), 1558 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1558 matched stars entering correct_measured_positions(), 1868 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

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 767 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1564 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1559 matched stars entering correct_measured_positions(), 1868 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 1559 matched stars entering correct_measured_positions(), 1868 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 1559 stars left (next iteration limit 1713)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1559 robust_rms=7.088 arcsec worst_region_rms=11.282 arcsec outer_annulus_rms=11.282 arcsec
SIP_REFIT: SIP order 3 trial: matched=1559 robust_rms=0.629 arcsec worst_region_rms=0.769 arcsec outer_annulus_rms=0.735 arcsec
SIP_REFIT: SIP order 5 trial: matched=1559 robust_rms=0.368 arcsec worst_region_rms=0.497 arcsec outer_annulus_rms=0.497 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1559 robust_rms_before=0.960 arcsec robust_rms_before_corrected=0.354 arcsec robust_rms_after=0.368 arcsec worst_region_rms_before=0.532 worst_region_rms_after=0.497 outer_annulus_rms_before=0.945 outer_annulus_rms_after=0.497
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.532 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits worst_region_rms_kept=0.532 arcsec robust_rms_kept=0.354 arcsec matched=1559
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits N_match=1559 sigma_overall_arcsec=0.357 sigma_q1_arcsec=0.325 sigma_q2_arcsec=0.350 sigma_q3_arcsec=0.370 sigma_q4_arcsec=0.366 n_q1=542 n_q2=284 n_q3=492 n_q4=241 worst_quadrant_to_overall_ratio=1.035
WCS_HEADER_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits selection=current_pairs N_selected=1559 N_valid=1559 bias_ra_arcsec=0.401 bias_dec_arcsec=-0.128 median_sep_arcsec=0.811 p95_sep_arcsec=1.815 n_q1=542 n_q2=284 n_q3=492 n_q4=241 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits -region wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits to local_wcs_cache/
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits'
Saving the final (post-refit) wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits to local_wcs_cache/
'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits'
Saving the final (post-refit) wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits'
Saving the final (post-refit) wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits sigma_overall=0.363 worst_q_ratio=1.088
ref2=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits sigma_overall=0.362 worst_q_ratio=1.107
new1=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits sigma_overall=0.359 worst_q_ratio=1.125
new2=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits sigma_overall=0.357 worst_q_ratio=1.035
reference average sigma_overall=0.3625 worst_q_ratio=1.0975
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659_astrometric_residuals.png (4893 matched stars from wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.32 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660_astrometric_residuals.png (4888 matched stars from wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094_astrometric_residuals.png (1530 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.26 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095_astrometric_residuals.png (1559 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits'
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits'
Preparing the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
  
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.cat to cache
SExtractor catalog cache: saved UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Creating symlink local_wcs_cache/wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits exists and is non-empty
wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (1st reference image)
verification OK: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Image size: 937.5'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 14:24:01.593 +69:59:33.71 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Image size: 938.0'x625.0'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:23:53.619 +69:56:38.22 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:23:53.619 +69:56:38.22
Angular distance between the image centers 0.0501 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Image size: 937.7'x624.9'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 14:23:54.310 +69:57:10.00 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 14:24:01.593 +69:59:33.71
Second-epoch image center 14:23:54.310 +69:57:10.00
Angular distance between the image centers 0.0413 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  14:23:53.619 +69:56:38.22
Second-epoch second image center 14:23:54.310 +69:57:10.00
Angular distance between the image centers 0.00888 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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits &> /tmp/tmp.vtlKsbLbe7
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits &> /tmp/tmp.0rE4UH12l8
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits &> /tmp/tmp.VJhJoyJQ4R
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits &> /tmp/tmp.ytsgprjeqv
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
Found non-empty wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits and wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat
The reference image (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits) and catalog (wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat) found
'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat' -> 'wcsmag.cat'
Read 41527 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9292 to 244.1268 deg, Dec +63.6486 to +75.2502 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 187.9292 to 244.1268 deg, Dec 63.6486 to 75.2502 deg
Loaded 8148 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): 4639 out of 5092 total matches.
Matched with Tycho-2 5092 out of 41527 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.601600
a=0.000000 b=1.000000 c=22.601600
From vast_summary.log: estimated ref. image limiting mag.:  -7.02
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.58

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.58

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 41527 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9292 to 244.1268 deg, Dec +63.6486 to +75.2502 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 187.9292 to 244.1268 deg, Dec 63.6486 to 75.2502 deg
Loaded 8148 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): 4639 out of 5092 total matches.
Matched with Tycho-2 5092 out of 41527 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (aperture=4.9)
Read 41453 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9737 to 244.1235 deg, Dec +63.6500 to +75.2475 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 187.9737 to 244.1235 deg, Dec 63.6500 to 75.2475 deg
Loaded 8143 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): 4637 out of 5095 total matches.
Matched with Tycho-2 5095 out of 41453 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Forced-photometry filter: calibrated wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -> calib.txt_param_ref_wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (aperture=4.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 12 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 2.2 pix  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 2.2 pix  fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
 2.1 pix  fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Limiting magnitude estimates:
 15.6 mag.  UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
 15.6 mag.  UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
 14.0 mag.  fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
 14.0 mag.  fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
All-image limiting magnitude estimate:  14.0 (SNR )  13.2 (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.vtlKsbLbe7 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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=13, blended=2144, bad_region=6622, passed=41514
Got 41514 stars (including 33273 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat 
util/solve_plate_with_UCAC5 got 41514 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010417 (37.5 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 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4895 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 4890 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 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 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4895 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 36589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4890 stars left (next iteration limit 5379)
Stop iterations.


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

SIP_REFIT: wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits N_match=4890 sigma_overall_arcsec=0.361 sigma_q1_arcsec=0.327 sigma_q2_arcsec=0.373 sigma_q3_arcsec=0.388 sigma_q4_arcsec=0.381 n_q1=1740 n_q2=836 n_q3=1524 n_q4=790 worst_quadrant_to_overall_ratio=1.075
WCS_HEADER_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits selection=current_pairs N_selected=4890 N_valid=4890 bias_ra_arcsec=-0.038 bias_dec_arcsec=-0.007 median_sep_arcsec=0.304 p95_sep_arcsec=0.908 n_q1=1740 n_q2=836 n_q3=1524 n_q4=790 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.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.0rE4UH12l8 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits' -> 'wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS_IMAGE_NAME=wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS-calibrated image found: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
Checking if the catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits alredy exist and is non-empty...
Catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat corresponding to the image wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits
WCS catalog name: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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=18, blended=2188, bad_region=6671, passed=41435
Got 41435 stars (including 33150 good ones) from the SExtractor catalog wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat 
util/solve_plate_with_UCAC5 got 41435 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 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 768 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 4894 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 4889 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36474 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 768 to 828 (Dec 63.7 to 75.2)
Done reading UCAC5 zone files...
Matched 4894 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36474 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 36473 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4889 stars left (next iteration limit 5377)
Stop iterations.


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

SIP_REFIT: wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits N_match=4889 sigma_overall_arcsec=0.358 sigma_q1_arcsec=0.317 sigma_q2_arcsec=0.379 sigma_q3_arcsec=0.402 sigma_q4_arcsec=0.380 n_q1=1732 n_q2=840 n_q3=1524 n_q4=793 worst_quadrant_to_overall_ratio=1.121
WCS_HEADER_DIAG: file=UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits selection=current_pairs N_selected=4889 N_valid=4889 bias_ra_arcsec=-0.033 bias_dec_arcsec=-0.008 median_sep_arcsec=0.296 p95_sep_arcsec=0.907 n_q1=1732 n_q2=840 n_q3=1524 n_q4=793 occupied_cells_4x4=16/16
The image catalog is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits -region wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.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.VJhJoyJQ4R (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.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=444, bad_region=1997, passed=15088
Got 15088 stars (including 12715 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat 
util/solve_plate_with_UCAC5 got 15088 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.0'
Seting catalog search parameters based on the expected field of view 938.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013028 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010422 (37.5 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 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4884 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 4870 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 13620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 

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 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4884 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4871 matched stars entering correct_measured_positions(), 13620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 13620 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4870 stars left (next iteration limit 5357)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.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=4870 robust_rms=6.972 arcsec worst_region_rms=11.103 arcsec outer_annulus_rms=11.103 arcsec
SIP_REFIT: SIP order 3 trial: matched=4870 robust_rms=0.568 arcsec worst_region_rms=0.745 arcsec outer_annulus_rms=0.745 arcsec
SIP_REFIT: SIP order 5 trial: matched=4870 robust_rms=0.430 arcsec worst_region_rms=0.557 arcsec outer_annulus_rms=0.557 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4870 robust_rms_before=0.431 arcsec robust_rms_before_corrected=0.411 arcsec robust_rms_after=0.430 arcsec worst_region_rms_before=0.556 worst_region_rms_after=0.557 outer_annulus_rms_before=0.560 outer_annulus_rms_after=0.557
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.556 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits worst_region_rms_kept=0.556 arcsec robust_rms_kept=0.411 arcsec matched=4870
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits N_match=4870 sigma_overall_arcsec=0.400 sigma_q1_arcsec=0.391 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.421 sigma_q4_arcsec=0.408 n_q1=1805 n_q2=837 n_q3=1538 n_q4=690 worst_quadrant_to_overall_ratio=1.052
WCS_HEADER_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits selection=current_pairs N_selected=4870 N_valid=4870 bias_ra_arcsec=-0.006 bias_dec_arcsec=0.004 median_sep_arcsec=0.350 p95_sep_arcsec=0.986 n_q1=1805 n_q2=837 n_q3=1538 n_q4=690 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits -region wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.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.ytsgprjeqv (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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=1, blended=402, bad_region=1966, passed=15009
Got 15009 stars (including 12690 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat 
util/solve_plate_with_UCAC5 got 15009 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 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 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4879 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 4866 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 13561 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4879 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 13561 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 13561 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4867 stars left (next iteration limit 5352)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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=4867 robust_rms=7.038 arcsec worst_region_rms=10.846 arcsec outer_annulus_rms=10.846 arcsec
SIP_REFIT: SIP order 3 trial: matched=4867 robust_rms=0.669 arcsec worst_region_rms=0.777 arcsec outer_annulus_rms=0.777 arcsec
SIP_REFIT: SIP order 5 trial: matched=4867 robust_rms=0.459 arcsec worst_region_rms=0.597 arcsec outer_annulus_rms=0.597 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4867 robust_rms_before=0.962 arcsec robust_rms_before_corrected=0.413 arcsec robust_rms_after=0.459 arcsec worst_region_rms_before=0.564 worst_region_rms_after=0.597 outer_annulus_rms_before=0.968 outer_annulus_rms_after=0.597
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.564 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits worst_region_rms_kept=0.564 arcsec robust_rms_kept=0.413 arcsec matched=4867
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits N_match=4867 sigma_overall_arcsec=0.402 sigma_q1_arcsec=0.408 sigma_q2_arcsec=0.394 sigma_q3_arcsec=0.404 sigma_q4_arcsec=0.411 n_q1=1799 n_q2=849 n_q3=1529 n_q4=690 worst_quadrant_to_overall_ratio=1.023
WCS_HEADER_DIAG: file=fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits selection=current_pairs N_selected=4867 N_valid=4867 bias_ra_arcsec=0.360 bias_dec_arcsec=-0.132 median_sep_arcsec=0.819 p95_sep_arcsec=1.793 n_q1=1799 n_q2=849 n_q3=1529 n_q4=690 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits -region wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.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_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Preparing the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits at 14:06:47.66 +69:37:30.0:  12.85 +/- 0.02  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-48-47_20.00sec_-4.90C_LIGHT_0659.fits at 14:00:36.97 +70:58:18.4:  13.09 +/- 0.03  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 14:06:47.66 +69:37:30.0:  12.87 +/- 0.03  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 14:00:36.97 +70:58:18.4:  13.06 +/- 0.03  detection
Forced photometry reference-image weighted average:  12.86 +/- 0.02
Forced photometry reference-image weighted average:  13.07 +/- 0.02
Forced photometry filter REJECTED candidate at 14:06:47.66 +69:37:30.0: ref_mag=12.86 +/- 0.02 new_mean_mag=12.8423 delta=0.01 (need > 0.90)
Forced photometry filter REJECTED candidate at 14:00:36.97 +70:58:18.4: ref_mag=13.07 +/- 0.02 new_mean_mag=12.9504 delta=0.12 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
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Considering the candidate 52445_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52445_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    10.26    13:30:04.97 +71:24:29.0   7319 1924   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

Rejecting candidate due to large distance (29.1") between the two second-epoch detections
  
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Considering the candidate 52452_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52452_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    10.80    13:32:08.56 +72:05:46.3   7119 1546   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

Rejecting candidate due to large distance (29.4") between the two second-epoch detections
  
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Considering the candidate 52525_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52525_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.04    15:14:40.35 +67:19:08.9   1894 4603   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  15:14:40.36 +67:19:08.8 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 52526_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52526_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.12    13:35:43.61 +72:38:29.7   6879 1266   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  13:35:43.50 +72:38:29.5 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52562_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52562_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.68    15:17:30.26 +71:49:03.1   2223 1891   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  15:17:30.36 +71:49:03.0 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 52569_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52569_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.71    14:34:18.22 +66:48:10.0   4243 5108   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  14:34:18.44 +66:48:09.8 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52590_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52590_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 1     2026 10 24.19286    2461337.69286    12.83    14:06:47.82 +69:37:29.8   5692 3319   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Discovery image 2     2026 10 24.19338    2461337.69338    12.85    14:06:47.50 +69:37:30.3   5693 3324   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

  
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Considering the candidate 52595_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52595_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.90    13:35:31.23 +72:37:25.4   6891 1274   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  13:35:31.66 +72:37:24.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52600_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52600_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.62    13:32:27.97 +72:44:46.0   7007 1168   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

Rejecting candidate due to large distance (29.2") between the two second-epoch detections
  
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Considering the candidate 52603_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52603_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 1     2026 10 24.19286    2461337.69286    12.93    14:00:36.92 +70:58:19.0   5907 2474   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Discovery image 2     2026 10 24.19338    2461337.69338    12.97    14:00:37.02 +70:58:17.7   5907 2479   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

  
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Considering the candidate 52607_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 52607_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 2     2026 10 24.19338    2461337.69338    12.81    13:43:16.49 +73:49:34.6   6399 0639   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  13:43:16.60 +73:49:34.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 34626_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095
The candidate 34626_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095 did not pass the final checks
Discovery image 3     2026 10 24.19338    2461337.69338    7.52    14:17:19.97 +66:47:41.4   5253 5078   /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits

**** FOUND  14:17:19.96 +66:47:41.5 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field UMi-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-10-23_CI_UMi-02-Q2b1x1_234128_TTUQ2b1x1_201559_VCn1V2gl/monitoring_positions.txt
Source monitoring: positions closer than 100 pix to a frame edge are recorded as edge
Read 15088 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9193 to 243.6596 deg, Dec +63.4579 to +75.2250 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 187.9193 to 243.6596 deg, Dec 63.4579 to 75.2250 deg
Loaded 8207 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): 4824 out of 4947 total matches.
Matched with Tycho-2 4947 out of 15088 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Observation time (mid-exposure, UTC): JD 2461337.69286 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 215.97573 deg  Dec= +69.94481 deg
Frame center: alt= +16.911 deg  az= 345.503 deg  airmass= 3.3904
Header cross-check: CENTALT= 16.890 deg (difference +0.021 deg)
Header cross-check: AIRMASS= 3.4050 (we compute 3.3904)
Airmass zero-point fit: OK  k= +0.2209 +/- 0.0044 mag/airmass  N= 3792  airmass span 2.3122-6.4681  scatter 0.1923 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits: OK +0.738928 -0.220881 3.3904 +0.2209 3792 4.1560 0.1923 2.3122 6.4681
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits list=monitoring_pixlist204652.tmp aperture=4.6
Image size: 9576 x 6388
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).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.074250
Local star coverage test: 15088 stars in wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits.wcscat, test radius 302 pix (0.50 deg), 74.3 stars per circle at the frame's mean density
Forced photometry: center=(3169.32, 5415.95) aperture=4.6
Annulus: inner=9.20 outer=23.00 edge margin=100.00
Background annulus: 1390 pixels
Iterative clipping converged after 1 iterations, 1388/1390 pixels remain
SExtractor background: mode=4706.43 median=4713.50 mean=4718.21 sigma=108.59 -> bg=4706.43 (1388 pixels)
Aperture sum=78683.83 N_eff=16.6190
Net flux=467.52 noise=442.70 SNR=1.06
Instrumental magnitude: -7.8081
Calibrated magnitude: 14.2662
Local star coverage at (3169.32, 5415.95): 68 catalog stars within 302 pix, 74.3 expected at the frame's mean star density
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-37-32_20.00sec_0.00C_LIGHT_0094.fits (aperture 4.6 pix)
Read 15010 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9277 to 243.6589 deg, Dec +63.4590 to +75.2389 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 187.9277 to 243.6589 deg, Dec 63.4590 to 75.2389 deg
Loaded 8210 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): 4995 out of 5093 total matches.
Matched with Tycho-2 5093 out of 15010 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Observation time (mid-exposure, UTC): JD 2461337.69338 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 215.97861 deg  Dec= +69.95364 deg
Frame center: alt= +16.887 deg  az= 345.576 deg  airmass= 3.3951
Header cross-check: CENTALT= 16.858 deg (difference +0.029 deg)
Header cross-check: AIRMASS= 3.4113 (we compute 3.3951)
Airmass zero-point fit: OK  k= +0.2234 +/- 0.0045 mag/airmass  N= 3903  airmass span 2.3159-6.2845  scatter 0.2002 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits: OK +0.755357 -0.223369 3.3951 +0.2234 3903 3.9686 0.2002 2.3159 6.2845
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits list=monitoring_pixlist204652.tmp aperture=4.6
Image size: 9576 x 6388
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).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.060700
Local star coverage test: 15010 stars in wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits.wcscat, test radius 302 pix (0.50 deg), 74.0 stars per circle at the frame's mean density
Forced photometry: center=(3170.37, 5421.45) aperture=4.6
Annulus: inner=9.20 outer=23.00 edge margin=100.00
Background annulus: 1399 pixels
Iterative clipping converged after 1 iterations, 1394/1399 pixels remain
SExtractor background: mode=4746.62 median=4753.50 mean=4758.08 sigma=106.44 -> bg=4746.62 (1394 pixels)
Aperture sum=78250.63 N_eff=16.6190
Net flux=-633.64 noise=433.93 SNR=-1.46
Instrumental magnitude: -7.7864
Calibrated magnitude: 14.2743
Local star coverage at (3170.37, 5421.45): 69 catalog stars within 302 pix, 74.0 expected at the frame's mean star density
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-10-23_23-38-17_20.00sec_-0.00C_LIGHT_0095.fits (aperture 4.6 pix)
########### Completed UMi-02-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461337.69285737 -observatory V36
15:09:13.73 -20:48:17.6 Mercury (0.5mag)
13:43:25.08 -17:40:47.0 Venus (-4.2mag)
09:08:29.80 +17:56:22.9 Mars (0.9mag)
09:41:59.11 +14:29:57.0 Jupiter (-2.0mag)
00:38:54.64 +01:15:11.6 Saturn (0.4mag)
04:10:32.11 +20:54:01.0 Uranus (5.6mag)
00:09:09.50 -00:33:09.5 Neptune (7.7mag)
20:24:12.74 -23:42:51.3 Pluto (14.5mag)
00:12:13.55 +04:09:32.7 Moon (-12.1mag)
-rw-r--r-- 1 apache apache 362 Oct 23 23:43 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461337.69285737:
09:41:56.72 +14:30:11.1 Io (6.1mag)
09:41:49.08 +14:30:54.0 Europa (6.2mag)
09:41:54.01 +14:30:26.7 Ganymede (5.5mag)
09:41:43.01 +14:31:28.9 Callisto (6.8mag)
09:42:41.52 +14:45:27.8 Himalia (15.6mag)
09:41:56.06 +14:30:14.0 Thebe (16.4mag)
09:41:11.43 +14:53:59.6 Elara (17.4mag)
09:43:32.73 +13:54:34.0 Pasiphae (17.8mag)
09:39:41.48 +14:59:59.2 Carme (18.8mag)
00:38:54.49 +01:15:28.1 Titan (8.2mag)
00:38:58.77 +01:14:56.0 Rhea (9.6mag)
00:38:59.62 +01:13:42.2 Iapetus (11.0mag)
00:39:06.41 +01:15:12.8 Hyperion (14.1mag)
00:37:09.23 +01:02:47.6 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Oct 23 23:43 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461337.69285737:
03:58:16.02 +19:41:31.6 JWST
16:08:46.85 +47:54:21.7 Chandra
06:05:59.45 +26:18:30.8 XMM-Newton
-rw-r--r-- 1 apache apache 96 Oct 23 23:43 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461337.69285737 -observatory V36
03:40:30.15 +20:08:12.6 17.1mag P/1996 R2 (Lagerkvist)
07:42:36.92 +37:41:28.2 17.9mag P/2004 V5 (LINEAR-Hill)
07:42:41.95 +37:41:15.6 17.9mag P/2004 V5-A (LINEAR-Hill)
07:42:02.49 +37:41:29.3 18.0mag P/2004 V5-B (LINEAR-Hill)
05:02:43.52 +40:37:34.2 17.9mag P/2009 Y2 (Kowalski)
18:37:03.26 -33:10:18.8 14.9mag P/2010 H2 (Vales)
07:43:51.26 -73:14:44.6 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:13:52.08 +35:01:17.8 17.7mag C/2017 K2 (PANSTARRS)
04:36:56.31 +48:02:10.7 17.6mag P/2021 N1 (ZTF)
07:34:07.82 +25:21:48.2 16.9mag C/2022 N2 (PANSTARRS)
09:06:44.85 +37:09:06.9 16.3mag C/2024 E1 (Wierzchos)
18:31:11.02 +41:03:38.9 17.4mag C/2024 J3 (ATLAS)
05:45:33.60 -13:39:55.0 16.4mag C/2024 T5 (ATLAS)
12:41:38.20 +14:57:29.2 15.9mag C/2025 V2 (Rankin)
14:04:14.30 -03:46:34.5 16.4mag C/2025 Y1 (ATLAS)
19:34:58.62 +59:12:52.7 15.5mag C/2026 A2 (Bok)
02:21:37.64 +41:10:50.1 18.0mag C/2026 B2 (Sun-Gao)
12:57:55.60 +15:39:49.2 17.7mag A/2026 E1
16:21:13.32 -55:24:55.7 13.7mag P/2026 R2 (Leonard)
19:24:36.42 -05:09:34.5 16.7mag P/2026 T1 (ATLAS)
23:54:13.47 +16:35:11.5 17.1mag 2P/Encke
23:13:12.13 -28:34:34.4 15.0mag 10P/Tempel
02:27:41.86 +35:15:29.5 16.4mag 11P/Tempel-Swift-LINEAR
12:19:40.77 -09:12:28.5 16.3mag 29P/Schwassmann-Wachmann
00:15:02.98 -09:05:29.5 15.7mag 65P/Gunn
07:50:58.43 +14:38:28.7 13.9mag 78P/Gehrels
02:46:08.49 +13:38:47.1 17.9mag 88P/Howell
08:25:01.46 +43:37:14.7 17.0mag 112P/Urata-Niijima
09:30:56.81 +09:27:16.0 17.7mag 114P/Wiseman-Skiff
12:06:53.16 +10:20:24.3 14.8mag 123P/West-Hartley
14:39:41.67 -35:39:23.6 18.0mag 124P/Mrkos
20:20:52.95 +11:04:32.8 9.9mag 161P/Hartley-IRAS
10:49:38.44 -01:09:51.8 15.4mag 169P/NEAT
03:20:08.97 +03:05:45.6 15.0mag 220P/McNaught
06:18:19.33 +47:52:52.0 15.5mag 260P/McNaught
07:44:55.35 +25:17:38.2 17.7mag 266P/Christensen
-rw-r--r-- 1 apache apache 1.8K Oct 23 23:43 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
22:14:03.37 -45:07:18.60  ASASSN-26fm   VIZIER
01:57:48.19 -33:14:42.30  SN 2026aedl   -------
18:05:22.06 +17:52:41.00  ASASSN-26fn  2026-10-11.74 15.23
21:50:55.86 -02:51:49.30  SN2026acyb  2026-10-9.85 16.83
03:40:34.04 +02:31:56.70  SN2026acvp  2026-10-9.95 17.75
04:33:25.91 -13:41:04.20  SN2026adhl   -------
09:20:05.05 +27:03:12.40  SN2026aeif   -------
02:58:07.77 -65:18:52.90  ASASSN-26fl   VIZIER
02:49:03.98 -49:55:57.00  SN 2026adfy  2026-10-4.88 16.61
22:03:46.31 -11:07:57.70  AT2026adgn  2026-10-4.28 -2.56
15:03:12.98 +49:51:05.40  ASASSN-26fj   VIZIER
08:07:27.96 -65:51:03.90  ASASSN-26fi  2026-10-1.36 15.82
21:02:34.66 +23:57:26.20  ASASSN-26fh  2026-10-1.27 15.94
20:00:16.62 +03:26:29.90  AT2026adfv   -------
00:08:42.74 -32:33:16.50  SN2026abhc   -------
21:02:30.26 -19:27:41.80  SN2026acxa   -------
04:39:17.45 -28:06:12.40  ASASSN-26fg   VIZIER
05:25:07.80 +04:38:32.40  SN2026aajs   -------
19:56:12.67 +08:25:27.70  AT2026acgs   -------
00:02:34.06 +52:55:18.90  ASASSN-26ff  2026-09-16.38 15.41
23:44:33.18 +17:46:12.20  SN2026yjv   -------
16:21:12.24 +57:37:51.30  SN 2026aafh   -------
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   -------
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs   -------
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   -------
02:47:25.52 -32:58:34.50  SN 2026znh   -------
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   VIZIER
03:52:53.26 -14:19:28.70  SN 2026zfw   -------
01:53:26.46 +10:07:25.10  SN2026aacj   -------
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.64 +34:24:35.00  SN2026aaiv   -------
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   VIZIER
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055   -------
17:17:45.96 +64:31:40.10  ASASSN-26ez   VIZIER
19:02:47.09 +58:08:21.00  AT2026zwo   -------
04:20:07.58 -42:26:59.90  AT2026zjy   -------
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid   -------
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   -------
23:01:28.67 -61:00:39.00  SN 2026yib   -------
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   VIZIER
13:53:14.21 +00:26:52.00  SN 2026wkv   -------
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   -------
01:10:22.05 -09:34:08.50  SN2026weo   -------
00:56:54.35 -35:55:29.40  AT2026wdy   -------
22:08:07.63 -53:03:58.90  AT2026wek   -------
14:51:51.34 +66:13:24.60  ASASSN-26ev   VIZIER
12:06:50.79 -36:16:06.20  SN2026wgm   -------
16:56:36.90 -59:29:26.00  ASASSN-26er   VIZIER
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   VIZIER
12:18:47.98 -30:48:47.50  ASASSN-26et   VIZIER
13:00:47.82 +15:42:17.60  SN2026uwk   -------
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   VIZIER
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   VIZIER
04:50:01.03 -02:22:33.80  ASASSN-26ej   VIZIER
18:34:55.28 -31:41:00.90  ASASSN-26ek   VIZIER
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   VIZIER
10:00:46.44 -32:36:31.10  AT 2023mhb   -------
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   VIZIER
19:33:53.06 -07:15:00.80  ASASSN-22le   -------
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   -------
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   -------
20:21:30.50 -32:03:40.10  ASASSN-26ee   VIZIER
19:37:44.09 -05:35:42.80  AT2026ryu   -------
11:06:55.46 -04:07:04.50  AT2026qqg   -------
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   VIZIER
19:59:01.43 -32:07:34.30  ASASSN-26eb   VIZIER
18:46:50.35 -57:44:13.20  SN 2026qqp   -------
19:17:31.69 -39:55:29.90  ASASSN-26dz   VIZIER
-rw-r--r-- 1 apache apache 9.3K Oct 23 23:43 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
00:42:36.61 +41:13:50.5  TCP J00423661+4113505  2026-09-29.7462  17.4mag
22:03:46.29 -11:07:57.8  TCP J22034629-1107578  2026-09-29.7438  14.51Cmag
22:05:02.06 +20:49:01.2  TCP J22050206+2049012  2026-10-03.5715  17.13Cmag
00:38:15.01 +41:14:47.2  TCP J00381501+4114472  2026-10-08.5978  17.72Cmag
01:06:05.83 +09:51:20.4  TCP J01060583+0951204  2026-10-10.8543  14.54Cmag
17:54:18.76 -27:36:36.2  TCP J17541876-2736362  2026-10-12.3993  10.8mag
09:56:00.79 +69:06:15.2  PNV J09560079+6906152  2026-10-14.9274  19.38Cmag
00:43:30.83 +41:26:55.3  PNV J00433083+4126553  2026-10-17.5651  18.61Cmag
04:57:32.08 +30:15:41.6  TCP J04573208+3015416  2026-10-17.7818  18.21Cmag
05:21:07.64 +23:38:21.3  TCP J05210764+2338213  2026-10-18.4020  10.3mag
05:34:11.01 +28:45:30.5  TCP J05341101+2845305  2026-10-18.3604  16.6mag
-rw-r--r-- 1 apache apache 191K Oct 23 23:43 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
01:56:50.726 -00:15:50.01  AT 2026aekq  2026-10-04.54 20.65
21:53:52.165 -03:57:11.79  AT 2026aekp  2026-10-04.30 20.65
21:09:53.506 -04:58:54.11  AT 2026aeko  2026-10-04.29 20.26
04:13:29.796 -06:55:30.79  AT 2026aekn  2026-10-03.57 20.84
02:32:58.393 +13:55:00.06  AT 2026aekm  2026-10-04.42 20.04
01:05:52.095 +06:54:00.24  AT 2026aekl  2026-10-04.53 19.74
05:09:54.501 -31:21:30.57  AT 2026aekk  2026-10-05.77 20.11
01:29:07.892 -26:42:21.39  AT 2026aekj  2026-10-05.60 19.74
06:14:23.530 -19:34:40.68  AT 2026aeki  2026-10-03.70 19.19
05:58:35.793 -31:52:49.19  AT 2026aekh  2026-10-03.72 20.02
22:42:30.822 +15:28:22.07  AT 2026aekg  2026-10-05.87 19.9
22:38:34.879 -03:25:35.76  AT 2026aekf  2026-10-05.87 20.25
07:32:36.549 -37:03:17.03  AT 2026aeke  2026-10-05.60 19.029
19:25:22.740 -32:13:07.77  AT 2026aekd  2026-10-05.27 17.996
09:12:21.710 -05:34:42.86  AT 2026aekc  2026-10-05.62 18.67
08:29:04.899 -04:03:01.61  AT 2026aekb  2026-10-05.52 19.2696
03:04:56.578 -27:30:12.21  AT 2026aeka  2026-09-18.79 20.21
01:40:37.614 -22:02:34.42  AT 2026aejz  2026-10-03.60 19.79
03:48:35.736 -31:55:43.92  AT 2026aejy  2026-10-03.65 20.11
16:14:39.042 +07:02:42.65  AT 2026aejx  2026-10-05.22 16.65
-rw-r--r-- 1 apache apache 89K Oct 23 23:43 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Fri Oct 23 23:43:13 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: 28s (0.47 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 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: 3s (0.05 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 42s (0.70 min)
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 10s (0.17 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: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 21s (0.35 min)
FIELD_UMi-02-Q2b1x1: 82s (1.37 min)
=======================================
TOTAL_RUNTIME: 84s (1.40 min)
Finished: Fri Oct 23 23:44:37 CDT 2026