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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Field UMi-02-Q2b1x1 second-epoch image: UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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: 2461311.70617975 28.09.2026 04:56:43.930   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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):  5877
Objects passed selection criteria:  5855
Measurements per detected object (mean, median, min, max):    2.8    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.9    2.0    2    4
Average stars detected per image: 4345.75
Average stars matched: 4254.25 (97.8945 %)
Memory usage VmPeak:   232804 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 25 15:05:03 CDT 2026
VaST build number  1.0rc89-225-g3a72982a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-25)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Sep 28 00:09:12 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: 2461311.70617975 28.09.2026 04:56:43.930   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 10
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: 11 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):  32294
Objects passed selection criteria:  32212
Measurements per detected object (mean, median, min, max):    2.9    3.0    2    4
Measurements per selected object (mean, median, min, max):    3.0    3.0    2    4
Average stars detected per image: 25086
Average stars matched: 24402.5 (97.2754 %)
Memory usage VmPeak:   257780 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Sep 25 15:05:03 CDT 2026
VaST build number  1.0rc89-225-g3a72982a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-25)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Sep 28 00:10:00 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: 923432 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 923432 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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.png' -> 'transient_report/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits_preview.png'

UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits


renamed 'UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.png' -> 'transient_report/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits_preview.png'

UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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= 4031.7967
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 894.3925
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4032.4439
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 893.0787
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 7.7146
INFO:                  SECOND_EPOCH__SD_ratio= 0.001
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     19.4300003051758 / [degC] Focuser temperature
AMBTEMP =                 21.1 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-27T23:55:52.0829477' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-28T04:55:52.0829477' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61311.2054639119 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-28T04:56:01.9835774' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61311.2055785069 / 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      =     215.996349821099 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9998300697361 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     21.4633333333333 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =               341.94 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.71568518124112 / 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  =                20673 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20673 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     19.4300003051758 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     19.4300003051758 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 55.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               901.19 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 21.1 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                268.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =               5.0004 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/d_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits :)

Spent 0.648367 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/d_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     19.4099998474121 / [degC] Focuser temperature
AMBTEMP =                 21.1 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-27T23:56:43.9306191' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-28T04:56:43.9306191' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61311.2060640045 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-28T04:56:53.8345275' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61311.2061786344 / 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      =     215.996349929651 / [deg] RA of telescope" status=0
Record 32: "DEC     =      69.999830113456 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =              21.4075 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     341.993055555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.72233184303045 / 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  =                20673 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20673 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     19.4099998474121 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     19.4099998474121 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 55.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               901.19 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 21.1 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                268.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             5.400432 / [kph] Wind gust" status=0
Record 61: "WINDSPD =               5.0004 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/d_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits :)

Spent 0.666932 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/d_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Previews of the CALIBRATED second-epoch images:


fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits



fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461311.70557965
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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Image size: 937.6'x624.2'  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: 14:24:01.417 +70:00:02.58 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 14:24:01.417 +70:00:02.58
Angular distance between the image centers 0.0080 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Image size: 937.6'x624.2'  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: 14:23:58.386 +70:00:36.13 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 14:23:58.386 +70:00:36.13
Angular distance between the image centers 0.0179 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  14:24:01.417 +70:00:02.58
Second-epoch second image center 14:23:58.386 +70:00:36.13
Angular distance between the image centers 0.01027 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.sJSmaUMbTA
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.DL6e2FsDYD
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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits &> /tmp/tmp.eTTSNtGMNH
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits &> /tmp/tmp.wM9b0OZwQ7
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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
 2.4 pix  fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
 2.4 pix  fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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
 14.1 mag.  fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
 14.1 mag.  fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
All-image limiting magnitude estimate:  14.1 (SNR )  11.1 (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.sJSmaUMbTA (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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/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
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.DL6e2FsDYD (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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/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
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.eTTSNtGMNH (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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=280, bad_region=530, passed=3073
Got 3073 stars (including 2321 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat 
util/solve_plate_with_UCAC5 got 3073 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.6'
Seting catalog search parameters based on the expected field of view 937.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013022 (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 0.010418 (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 2278 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2272 matched stars entering correct_measured_positions(), 2272 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2272 matched stars entering correct_measured_positions(), 2650 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 2278 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2273 matched stars entering correct_measured_positions(), 2650 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 2273 matched stars entering correct_measured_positions(), 2650 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 2273 stars left (next iteration limit 2499)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2273 robust_rms=7.358 arcsec worst_region_rms=13.988 arcsec outer_annulus_rms=13.988 arcsec
SIP_REFIT: SIP order 3 trial: matched=2273 robust_rms=0.455 arcsec worst_region_rms=0.619 arcsec outer_annulus_rms=0.619 arcsec
SIP_REFIT: SIP order 5 trial: matched=2273 robust_rms=0.412 arcsec worst_region_rms=0.541 arcsec outer_annulus_rms=0.541 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2273 robust_rms_before=0.686 arcsec robust_rms_before_corrected=0.388 arcsec robust_rms_after=0.412 arcsec worst_region_rms_before=0.597 worst_region_rms_after=0.541 outer_annulus_rms_before=0.780 outer_annulus_rms_after=0.541
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.597 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits worst_region_rms_kept=0.597 arcsec robust_rms_kept=0.388 arcsec matched=2273
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits N_match=2273 sigma_overall_arcsec=0.382 sigma_q1_arcsec=0.357 sigma_q2_arcsec=0.412 sigma_q3_arcsec=0.401 sigma_q4_arcsec=0.384 n_q1=802 n_q2=390 n_q3=711 n_q4=370 worst_quadrant_to_overall_ratio=1.078
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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.wM9b0OZwQ7 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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=290, bad_region=548, passed=3119
Got 3119 stars (including 2349 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat 
util/solve_plate_with_UCAC5 got 3119 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.6'
Seting catalog search parameters based on the expected field of view 937.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013022 (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 0.010418 (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 2307 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2302 matched stars entering correct_measured_positions(), 2302 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2302 matched stars entering correct_measured_positions(), 2685 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 2307 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2302 matched stars entering correct_measured_positions(), 2685 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 2302 matched stars entering correct_measured_positions(), 2685 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 2302 stars left (next iteration limit 2532)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2302 robust_rms=7.265 arcsec worst_region_rms=14.325 arcsec outer_annulus_rms=14.325 arcsec
SIP_REFIT: SIP order 3 trial: matched=2302 robust_rms=0.463 arcsec worst_region_rms=0.657 arcsec outer_annulus_rms=0.657 arcsec
SIP_REFIT: SIP order 5 trial: matched=2302 robust_rms=0.406 arcsec worst_region_rms=0.515 arcsec outer_annulus_rms=0.515 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2302 robust_rms_before=0.701 arcsec robust_rms_before_corrected=0.390 arcsec robust_rms_after=0.406 arcsec worst_region_rms_before=0.559 worst_region_rms_after=0.515 outer_annulus_rms_before=0.817 outer_annulus_rms_after=0.515
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.559 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits worst_region_rms_kept=0.559 arcsec robust_rms_kept=0.390 arcsec matched=2302
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits N_match=2302 sigma_overall_arcsec=0.392 sigma_q1_arcsec=0.375 sigma_q2_arcsec=0.436 sigma_q3_arcsec=0.384 sigma_q4_arcsec=0.432 n_q1=791 n_q2=400 n_q3=731 n_q4=380 worst_quadrant_to_overall_ratio=1.113
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits'
Saving the final (post-refit) wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits to local_wcs_cache/
'wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits' -> 'local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits sigma_overall=0.382 worst_q_ratio=1.078
new2=fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits sigma_overall=0.392 worst_q_ratio=1.113
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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190_astrometric_residuals.png (2273 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191_astrometric_residuals.png (2302 matched stars from wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits'
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits exists and is non-empty
wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits (1st new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Image size: 937.6'x624.2'  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: 14:24:01.417 +70:00:02.58 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 14:24:01.417 +70:00:02.58
Angular distance between the image centers 0.0080 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits (2nd new image)
verification OK: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Image size: 937.6'x624.2'  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: 14:23:58.386 +70:00:36.13 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 14:23:58.386 +70:00:36.13
Angular distance between the image centers 0.0179 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  14:24:01.417 +70:00:02.58
Second-epoch second image center 14:23:58.386 +70:00:36.13
Angular distance between the image centers 0.01027 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.Y1zJH3Q50t
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.nPFwVN4H9p
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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits &> /tmp/tmp.whcaHvE24p
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits &> /tmp/tmp.HHJHcY8U45
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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 8 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
 2.3 pix  fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
 2.3 pix  fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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
 14.3 mag.  fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
 14.3 mag.  fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
All-image limiting magnitude estimate:  14.3 (SNR )  13.5 (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.Y1zJH3Q50t (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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/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
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.nPFwVN4H9p (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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/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
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.whcaHvE24p (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=862, bad_region=2192, passed=17918
Got 17918 stars (including 15233 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat 
util/solve_plate_with_UCAC5 got 17918 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.6'
Seting catalog search parameters based on the expected field of view 937.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013022 (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 0.010418 (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 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 4893 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4893 matched stars entering correct_measured_positions(), 16285 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 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4902 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4894 matched stars entering correct_measured_positions(), 16285 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 4894 matched stars entering correct_measured_positions(), 16285 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
Excluding outliers - 4894 stars left (next iteration limit 5382)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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=4894 robust_rms=7.167 arcsec worst_region_rms=12.075 arcsec outer_annulus_rms=12.075 arcsec
SIP_REFIT: SIP order 3 trial: matched=4894 robust_rms=0.496 arcsec worst_region_rms=0.637 arcsec outer_annulus_rms=0.637 arcsec
SIP_REFIT: SIP order 5 trial: matched=4894 robust_rms=0.461 arcsec worst_region_rms=0.543 arcsec outer_annulus_rms=0.543 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4894 robust_rms_before=0.717 arcsec robust_rms_before_corrected=0.420 arcsec robust_rms_after=0.461 arcsec worst_region_rms_before=0.568 worst_region_rms_after=0.543 outer_annulus_rms_before=0.819 outer_annulus_rms_after=0.543
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.568 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits worst_region_rms_kept=0.568 arcsec robust_rms_kept=0.420 arcsec matched=4894
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits N_match=4894 sigma_overall_arcsec=0.419 sigma_q1_arcsec=0.407 sigma_q2_arcsec=0.443 sigma_q3_arcsec=0.408 sigma_q4_arcsec=0.452 n_q1=1808 n_q2=785 n_q3=1582 n_q4=719 worst_quadrant_to_overall_ratio=1.079
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.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.HHJHcY8U45 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS_IMAGE_NAME=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS-calibrated image found: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Checking if the catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat corresponding to the image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
WCS catalog name: wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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=4, blended=872, bad_region=2151, passed=17844
Got 17844 stars (including 15196 good ones) from the SExtractor catalog wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat 
util/solve_plate_with_UCAC5 got 17844 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.6'
Seting catalog search parameters based on the expected field of view 937.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013022 (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 0.010418 (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 75.3)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 4890 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 16237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4899 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 16237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Accuracy estimation diagnostic: 4890 matched stars entering correct_measured_positions(), 16237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
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_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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=4890 robust_rms=7.187 arcsec worst_region_rms=11.865 arcsec outer_annulus_rms=11.865 arcsec
SIP_REFIT: SIP order 3 trial: matched=4890 robust_rms=0.501 arcsec worst_region_rms=0.635 arcsec outer_annulus_rms=0.635 arcsec
SIP_REFIT: SIP order 5 trial: matched=4890 robust_rms=0.441 arcsec worst_region_rms=0.514 arcsec outer_annulus_rms=0.514 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4890 robust_rms_before=0.729 arcsec robust_rms_before_corrected=0.419 arcsec robust_rms_after=0.441 arcsec worst_region_rms_before=0.538 worst_region_rms_after=0.514 outer_annulus_rms_before=0.850 outer_annulus_rms_after=0.514
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.538 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits worst_region_rms_kept=0.538 arcsec robust_rms_kept=0.419 arcsec matched=4890
WCS_QUALITY_DIAG: file=fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits N_match=4890 sigma_overall_arcsec=0.419 sigma_q1_arcsec=0.410 sigma_q2_arcsec=0.452 sigma_q3_arcsec=0.412 sigma_q4_arcsec=0.451 n_q1=1769 n_q2=782 n_q3=1627 n_q4=712 worst_quadrant_to_overall_ratio=1.078
The image catalog is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits -region wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Saving fully-calibrated image wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.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 15:08:21.95 +67:47:47.0:  13.25 +/- 0.03  detection
Forced photometry on wcs_UMi-02-Q2b1x1_2026-04-19_03-49-38_20.00sec_-4.90C_LIGHT_0660.fits at 15:08:21.95 +67:47:47.0:  13.31 +/- 0.03  detection
Forced photometry reference-image weighted average:  13.28 +/- 0.02
Forced photometry filter REJECTED candidate at 15:08:21.95 +67:47:47.0: ref_mag=13.28 +/- 0.02 new_mean_mag=13.7771 delta=-0.50 (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 52429_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52429_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 1     2026 09 28.20558    2461311.70558    13.72    15:08:22.46 +67:47:46.7   2294 4369   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Discovery image 2     2026 09 28.20618    2461311.70618    13.90    15:08:21.43 +67:47:47.3   2292 4375   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

  
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Considering the candidate 52431_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52431_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    13.37    15:25:27.43 +71:31:36.9   1835 1983   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  15:25:27.32 +71:31:36.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52505_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52505_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    11.79    15:17:24.79 +71:12:08.0   2177 2258   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  15:17:24.70 +71:12:08.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52508_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52508_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    12.13    15:14:40.35 +67:19:09.4   1881 4601   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  15:14:40.31 +67:19:08.7 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 52541_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52541_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    12.50    14:50:24.94 +74:12:40.2   3634 0620   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  14:50:25.01 +74:12:39.6 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 52557_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52557_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    12.64    15:17:30.39 +71:49:03.8   2244 1890   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  15:17:30.50 +71:49:03.5 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 52558_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 52558_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 2     2026 09 28.20618    2461311.70618    12.69    14:34:18.44 +66:48:10.1   4223 5138   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  14:34:18.42 +66:48:10.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 34626_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191
The candidate 34626_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191 did not pass the final checks
Discovery image 3     2026 09 28.20618    2461311.70618    7.63    14:17:19.96 +66:47:42.7   5234 5122   /data_ssd/NMW-TexasTech/workdir//img_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits

**** FOUND  14:17:19.94 +66:47:42.7 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_2026-09-28_CI_UMi-02-Q2b1x1_000634_TTUQ2b1x1_3863320_MddBq8p4/monitoring_positions.txt
Source monitoring: positions closer than 100 pix to a frame edge are recorded as edge
Read 17920 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9452 to 244.1505 deg, Dec +63.6206 to +75.2725 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 187.9452 to 244.1505 deg, Dec 63.6206 to 75.2725 deg
Loaded 8184 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): 4843 out of 5084 total matches.
Matched with Tycho-2 5084 out of 17920 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Observation time (mid-exposure, UTC): JD 2461311.70558 (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= 216.00826 deg  Dec= +70.00157 deg
Frame center: alt= +21.534 deg  az= 338.710 deg  airmass= 2.7015
Header cross-check: CENTALT= 21.463 deg (difference +0.070 deg)
Header cross-check: AIRMASS= 2.7157 (we compute 2.7015)
Airmass zero-point fit: OK  k= +0.3656 +/- 0.0073 mag/airmass  N= 3804  airmass span 1.9520-4.3831  scatter 0.2141 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits: OK +0.979102 -0.365556 2.7015 +0.3656 3804 2.4311 0.2141 1.9520 4.3831
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits list=monitoring_pixlist3876277.tmp aperture=5.0
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 + 22.363900
Forced photometry: center=(3149.46, 5432.31) aperture=5.0
Annulus: inner=10.00 outer=25.00 edge margin=100.00
Background annulus: 1652 pixels
Iterative clipping converged after 2 iterations, 1648/1652 pixels remain
SExtractor background: mode=4026.07 median=4026.00 mean=4025.95 sigma=99.33 -> bg=4026.07 (1648 pixels)
Aperture sum=79337.97 N_eff=19.6350
Net flux=286.30 noise=440.14 SNR=0.65
Instrumental magnitude: -7.8018
Calibrated magnitude: 14.5621
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-55-52_20.00sec_-0.00C_LIGHT_0190.fits (aperture 5.0 pix)
Read 17848 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 187.9368 to 244.1375 deg, Dec +63.5899 to +75.2802 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 187.9368 to 244.1375 deg, Dec 63.5899 to 75.2802 deg
Loaded 8215 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): 4828 out of 5091 total matches.
Matched with Tycho-2 5091 out of 17848 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Observation time (mid-exposure, UTC): JD 2461311.70618 (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= 215.99563 deg  Dec= +70.01089 deg
Frame center: alt= +21.481 deg  az= 338.783 deg  airmass= 2.7077
Header cross-check: CENTALT= 21.407 deg (difference +0.074 deg)
Header cross-check: AIRMASS= 2.7223 (we compute 2.7077)
Airmass zero-point fit: OK  k= +0.3587 +/- 0.0074 mag/airmass  N= 3771  airmass span 1.9554-4.5274  scatter 0.2187 mag
Source monitoring: airmass zero-point for wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits: OK +0.961163 -0.358704 2.7077 +0.3587 3771 2.5721 0.2187 1.9554 4.5274
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits list=monitoring_pixlist3876277.tmp aperture=5.0
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 + 22.364250
Forced photometry: center=(3146.84, 5437.97) aperture=5.0
Annulus: inner=10.00 outer=25.00 edge margin=100.00
Background annulus: 1652 pixels
Iterative clipping converged after 1 iterations, 1648/1652 pixels remain
SExtractor background: mode=3770.86 median=3774.50 mean=3776.93 sigma=106.01 -> bg=3770.86 (1648 pixels)
Aperture sum=73997.23 N_eff=19.6350
Net flux=-43.35 noise=469.75 SNR=-0.09
Instrumental magnitude: -7.8725
Calibrated magnitude: 14.4918
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits
Source monitoring: 1 position(s) measured on wcs_fd_UMi-02-Q2b1x1_2026-09-27_23-56-43_20.00sec_0.00C_LIGHT_0191.fits (aperture 5.0 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)2461311.70557965 -observatory V36
13:36:19.99 -11:32:35.6 Mercury (-0.1mag)
14:11:39.69 -20:28:03.6 Venus (-4.8mag)
08:08:14.80 +21:09:38.8 Mars (1.1mag)
09:25:18.96 +15:46:33.8 Jupiter (-1.9mag)
00:46:14.61 +02:01:18.4 Saturn (0.4mag)
04:13:10.20 +21:00:42.6 Uranus (5.7mag)
00:11:40.01 -00:17:02.9 Neptune (7.7mag)
20:24:29.15 -23:42:57.8 Pluto (14.5mag)
01:24:40.14 +12:50:55.7 Moon (-12.2mag)
-rw-r--r-- 1 apache apache 363 Sep 28 00:09 planets.txt
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Positions of selected moons from JPL HORIZONS for JD(UT)2461311.70557965:
09:25:26.27 +15:45:55.8 Io (9.3mag)
09:25:21.91 +15:46:19.9 Europa (6.3mag)
09:25:34.30 +15:45:12.2 Ganymede (7.9mag)
09:25:28.95 +15:45:42.3 Callisto (6.9mag)
09:24:07.96 +16:08:31.2 Himalia (15.7mag)
09:25:23.18 +15:46:13.2 Thebe (16.5mag)
09:23:20.89 +16:04:36.4 Elara (17.6mag)
09:28:28.50 +15:09:45.9 Pasiphae (17.8mag)
09:24:52.47 +16:10:08.9 Carme (18.9mag)
00:46:02.91 +02:01:02.3 Titan (8.2mag)
00:46:15.64 +02:01:18.8 Rhea (9.6mag)
00:45:38.07 +02:00:01.4 Iapetus (11.0mag)
00:46:28.02 +02:00:43.1 Hyperion (14.1mag)
00:44:42.40 +01:49:29.3 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep 28 00:09 moons.txt
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Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461311.70557965:
01:07:59.82 +18:30:10.1 JWST
17:12:11.50 +39:47:07.4 Chandra
05:25:18.55 +40:54:23.1 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep 28 00:09 spacecraft.txt
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Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461311.70557965 -observatory V36
03:47:33.81 +20:02:27.5 17.2mag P/1996 R2 (Lagerkvist)
18:14:08.35 -33:47:39.5 14.6mag P/2010 H2 (Vales)
07:33:23.90 -71:32:55.2 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:43.43 +34:16:13.1 17.7mag C/2017 K2 (PANSTARRS)
05:06:16.94 +47:48:13.3 16.6mag P/2021 N1 (ZTF)
21:58:27.75 +25:51:33.4 17.6mag C/2022 E2 (ATLAS)
07:23:58.43 +25:37:21.7 16.9mag C/2022 N2 (PANSTARRS)
11:08:25.72 +26:35:41.4 17.1mag C/2022 QE78 (ATLAS)
10:01:21.27 +05:07:13.6 18.0mag C/2022 R6 (PANSTARRS)
15:27:12.31 -17:27:57.3 15.1mag C/2023 R1 (PANSTARRS)
08:54:28.90 +34:24:44.3 16.1mag C/2024 E1 (Wierzchos)
15:10:48.20 +15:07:58.7 18.0mag C/2024 G6 (ATLAS)
18:26:00.11 +42:10:21.5 13.8mag C/2024 J3 (ATLAS)
20:01:27.12 +47:37:21.8 17.4mag C/2024 R4 (PANSTARRS)
05:44:03.75 -13:22:49.3 14.9mag C/2024 T5 (ATLAS)
11:53:11.62 +17:05:01.8 16.4mag C/2025 V2 (Rankin)
13:38:06.85 -01:36:48.1 16.7mag C/2025 Y1 (ATLAS)
17:49:53.14 +69:36:34.0 16.3mag C/2026 A2 (Bok)
02:50:08.22 +44:51:29.8 17.7mag C/2026 B2 (Sun-Gao)
12:33:00.05 +13:01:39.0 17.6mag A/2026 E1
22:44:35.67 -34:06:32.2 14.0mag 10P/Tempel
01:51:42.14 +39:37:43.8 17.1mag 11P/Tempel-Swift-LINEAR
12:02:19.41 -07:05:44.7 16.3mag 29P/Schwassmann-Wachmann
12:50:39.43 -11:32:00.4 17.9mag 63P/Wild
07:16:26.16 +17:23:03.4 17.1mag 78P/Gehrels
03:11:02.73 +14:50:33.6 16.9mag 88P/Howell
06:50:54.92 +36:10:07.9 17.2mag 112P/Urata-Niijima
08:30:06.36 +18:40:29.3 17.8mag 114P/Wiseman-Skiff
11:13:27.96 +16:16:01.3 14.8mag 123P/West-Hartley
13:34:26.79 -28:16:30.1 17.7mag 124P/Mrkos
06:39:59.69 +19:52:18.8 15.7mag 128P/Shoemaker-Holt
23:57:53.06 -09:02:38.6 13.8mag 161P/Hartley-IRAS
09:47:39.54 +05:04:32.4 13.2mag 169P/NEAT
03:33:07.74 +06:16:15.3 14.6mag 220P/McNaught
05:39:13.92 +42:08:57.9 15.4mag 260P/McNaught
09:42:10.35 +32:30:22.2 18.0mag 493P/LONEOS
-rw-r--r-- 1 apache apache 1.8K Sep 28 00:09 comets.txt
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List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:39:17.45 -28:06:12.40  ASASSN-26fg  2026-09-23.25 15.73
05:25:07.80 +04:38:32.40  SN2026aajs  2026-09-21.32 17.04
19:56:12.67 +08:25:27.70  AT2026acgs  2026-09-18.14 15.84
00:02:34.07 +52:55:19.10  ASASSN-26ff  2026-09-16.43 15.37
23:44:33.18 +17:46:12.20  SN2026yjv  2026-09-15.38 18.32
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.59 +34:24:35.70  SN2026aaiv  2026-09-7.22 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.79 -22:25:29.10  V8055  2026-08-30 10.76
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
-rw-r--r-- 1 apache apache 5.7K Sep 28 00:09 asassn_transients_list.txt
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Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
-rw-r--r-- 1 apache apache 191K Sep 28 00:09 tocp_transients_list.txt
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Truncated list of recent TNS transients from https://www.wis-tns.org/ :
01:52:55.402 -09:12:08.29  AT 2026aaxv  2026-09-04.64 20.08
05:04:14.730 -42:14:07.54  AT 2026aaxu  2026-09-03.80 19.73
00:02:28.077 -23:32:16.72  AT 2026aaxt  2026-09-04.59 20.16
01:03:33.302 -33:27:15.30  AT 2026aaxs  2026-08-22.73 20.13
02:42:04.255 -11:07:39.46  AT 2026aaxr  2026-09-03.17 19.67
02:31:19.833 -25:27:29.88  SN 2026aaxq  2026-09-06.65 20.16
00:52:57.241 -59:43:14.89  AT 2026aaxp  2026-09-06.70 19.51
01:20:22.758 -62:39:05.68  AT 2026aaxo  2026-09-06.70 20.13
00:14:01.541 -00:00:55.27  AT 2026aaxn  2026-09-08.53 19.62
04:14:33.098 -37:43:12.21  AT 2026aaxm  2026-08-22.80 20.49
19:48:31.105 -23:12:17.17  AT 2026aaxl  2026-09-04.43 20.19
00:38:15.294 -37:17:09.43  AT 2026aaxk  2026-09-04.60 20.02
21:01:01.181 -13:41:08.56  SN 2026aaxj  2026-09-08.41 19.99
22:54:22.028 -56:22:37.05  AT 2026aaxi  2026-09-08.58 20.16
01:42:07.146 -40:01:01.18  AT 2026aaxh  2026-09-04.64 20.37
21:44:13.978 -09:13:15.35  AT 2026aaxg  2026-09-08.45 20.21
02:32:42.330 -42:59:32.85  AT 2026aaxf  2026-09-04.67 20.08
23:28:33.837 -17:12:39.07  AT 2026aaxe  2026-09-04.48 20.3
23:27:55.166 -08:22:08.81  AT 2026aaxd  2026-09-04.50 20.02
03:53:07.549 -45:58:07.67  AT 2026aaxc  2026-09-08.67 20.03
-rw-r--r-- 1 apache apache 89K Sep 28 00:09 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Sep 28 00:08:32 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 29s (0.48 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 4s (0.07 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 40s (0.67 min)
TIMING SExtractor: 5 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 11s (0.18 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: 1s (0.02 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: 23s (0.38 min)
FIELD_UMi-02-Q2b1x1: 82s (1.37 min)
=======================================
TOTAL_RUNTIME: 103s (1.72 min)
Finished: Mon Sep 28 00:10:15 CDT 2026