FITS images used in this processing run:

Field UMi-01-Q2b1x1 reference image: UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Field UMi-01-Q2b1x1 reference image: UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Field UMi-01-Q2b1x1 second-epoch image: UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Field UMi-01-Q2b1x1 second-epoch image: UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461146.87947986 16.04.2026 09:06:17.060   /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
First image: 2461146.87947986 16.04.2026 09:06:17.060   /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Last  image: 2461287.98113654 04.09.2026 11:32:40.197   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.52
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: 2 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):  5835
Objects passed selection criteria:  5810
Measurements per detected object (mean, median, min, max):    2.3    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.3    2.0    2    4
Average stars detected per image: 4589.25
Average stars matched: 3908 (85.1555 %)
Memory usage VmPeak:   234472 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Sep  4 06:36:48 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: 2461146.87947986 16.04.2026 09:06:17.060   /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
First image: 2461146.87947986 16.04.2026 09:06:17.060   /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Last  image: 2461287.98113654 04.09.2026 11:32:40.197   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 5
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.18
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 8 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  36205
Objects passed selection criteria:  36091
Measurements per detected object (mean, median, min, max):    2.4    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.4    2.0    2    4
Average stars detected per image: 28284.8
Average stars matched: 24473.5 (86.5254 %)
Memory usage VmPeak:   269640 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Fri Sep  4 06:37:27 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
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-01-Q2b1x1
#######################################
########### Starting UMi-01-Q2b1x1 ###########
Processing UMi-01-Q2b1x1
server tau has sufficient free disk space available: 604730 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 604730 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.png' -> 'transient_report/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits_preview.png'

UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits


renamed 'UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.png' -> 'transient_report/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits_preview.png'

UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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= 499.2566
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 584.8745
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 8049.5013
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1836.2061
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 8991.8082
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 2036.4101
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 16.123
INFO:                  SECOND_EPOCH__SD_ratio= 0.098
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 =     22.0599994659424 / [degC] Focuser temperature
AMBTEMP =                 23.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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= '2026-09-04T06:31:49.9692143' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-04T11:31:49.9692143' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61287.4804394562 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-04T11:31:59.8720915' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61287.480554074 / 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      =      239.99953381671 / [deg] RA of telescope" status=0
Record 32: "DEC     =     77.4995784691487 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     21.2197222222222 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     358.816388888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.74494341682917 / 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-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '16 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+77 30 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  =                20444 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20444 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.0599994659424 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.0599994659424 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.2 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 54.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               898.82 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 34.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             1.400112 / [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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/d_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits :)

Spent 0.516698 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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/d_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     21.9599990844727 / [degC] Focuser temperature
AMBTEMP =                 23.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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= '2026-09-04T06:32:40.1970408' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-04T11:32:40.1970408' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61287.4810207984 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-04T11:32:50.0971344' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61287.4811353819 / 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      =     239.999534098768 / [deg] RA of telescope" status=0
Record 32: "DEC     =     77.4995784844334 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     21.2161111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =              358.865 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =       2.745382191023 / 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-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '16 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+77 30 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  =                20444 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20444 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     21.9599990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     21.9599990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.2 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 54.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               898.82 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 34.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             1.400112 / [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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/d_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits :)

Spent 0.491790 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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/d_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Previews of the CALIBRATED second-epoch images:


fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits



fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
  
SExtractor catalog cache: saved UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.cat to cache
SExtractor catalog cache: saved UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found 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: 2461287.98055520
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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits exists and is non-empty
wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits exists and is non-empty
wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits exists and is non-empty
wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (1st reference image)
verification OK: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Image size: 941.5'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 16:00:02.579 +77:29:59.05 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits (1st new image)
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Image size: 937.0'x624.8'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 15:59:48.527 +77:30:29.16 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 16:00:02.579 +77:29:59.05
Second-epoch image center 15:59:48.527 +77:30:29.16
Angular distance between the image centers 0.0152 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits (2nd new image)
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Image size: 936.9'x624.8'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 15:59:49.858 +77:29:48.32 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 16:00:02.579 +77:29:59.05
Second-epoch image center 15:59:49.858 +77:29:48.32
Angular distance between the image centers 0.0119 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  15:59:48.527 +77:30:29.16
Second-epoch second image center 15:59:49.858 +77:29:48.32
Angular distance between the image centers 0.01141 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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits &> /tmp/tmp.GSQOirLwWb
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits &> /tmp/tmp.mOaUNKMqBR
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits &> /tmp/tmp.s24uPGjHBz
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits &> /tmp/tmp.yxobSnlYLM
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat 
Found non-empty wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat
The reference image (wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits) and catalog (wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat) found
'wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat' -> 'wcsmag.cat'
Read 10691 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.5714 to 286.0278 deg, Dec +70.2810 to +82.8119 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 192.5714 to 286.0278 deg, Dec 70.2810 to 82.8119 deg
Loaded 12699 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): 6329 out of 6676 total matches.
Matched with Tycho-2 6676 out of 10691 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.810800
a=0.000000 b=1.000000 c=22.810800
From vast_summary.log: estimated ref. image limiting mag.:  -7.52
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.29

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.29

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 10691 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.5714 to 286.0278 deg, Dec +70.2810 to +82.8119 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 192.5714 to 286.0278 deg, Dec 70.2810 to 82.8119 deg
Loaded 12699 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): 6329 out of 6676 total matches.
Matched with Tycho-2 6676 out of 10691 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Forced-photometry filter: calibrated wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits -> calib.txt_param_ref_wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (aperture=6.3)
Read 10169 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.5610 to 286.6212 deg, Dec +70.5002 to +82.8178 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 192.5610 to 286.6212 deg, Dec 70.5002 to 82.8178 deg
Loaded 12465 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): 6292 out of 6524 total matches.
Matched with Tycho-2 6524 out of 10169 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Forced-photometry filter: calibrated wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits -> calib.txt_param_ref_wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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:
 2.2 pix  UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
 2.3 pix  UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
 2.6 pix  fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
 2.6 pix  fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Limiting magnitude estimates:
 15.3 mag.  UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
 15.2 mag.  UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
 12.4 mag.  fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
 12.6 mag.  fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
All-image limiting magnitude estimate:  12.4 (SNR )  10.1 (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.GSQOirLwWb (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits' -> 'wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS_IMAGE_NAME=wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS-calibrated image found: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Checking if the catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits alredy exist and is non-empty...
Catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS catalog name: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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=1, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=761, bad_region=2666, passed=10690
Got 10690 stars (including 7457 good ones) from the SExtractor catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat 
util/solve_plate_with_UCAC5 got 10690 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 801 to 866 (Dec 70.3 to 82.8)
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: 4897 matched stars entering correct_measured_positions(), 4897 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4897 matched stars entering correct_measured_positions(), 8597 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 

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 801 to 866 (Dec 70.3 to 82.8)
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: 4897 matched stars entering correct_measured_positions(), 8597 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4897 matched stars entering correct_measured_positions(), 8597 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4897 stars left (next iteration limit 5386)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits N_match=4897 sigma_overall_arcsec=0.324 sigma_q1_arcsec=0.309 sigma_q2_arcsec=0.456 sigma_q3_arcsec=0.283 sigma_q4_arcsec=0.327 n_q1=1445 n_q2=894 n_q3=1555 n_q4=1003 worst_quadrant_to_overall_ratio=1.408
The image catalog is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits -region wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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.mOaUNKMqBR (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits' -> 'wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS_IMAGE_NAME=wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS-calibrated image found: wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Checking if the catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits alredy exist and is non-empty...
Catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS catalog name: wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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=585, bad_region=2122, passed=10169
Got 10169 stars (including 7559 good ones) from the SExtractor catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat 
util/solve_plate_with_UCAC5 got 10169 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 802 to 866 (Dec 70.5 to 82.8)
Done reading UCAC5 zone files...
Matched 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4912 matched stars entering correct_measured_positions(), 4912 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4912 matched stars entering correct_measured_positions(), 8494 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 802 to 866 (Dec 70.5 to 82.8)
Done reading UCAC5 zone files...
Matched 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4912 matched stars entering correct_measured_positions(), 8494 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4912 matched stars entering correct_measured_positions(), 8494 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4912 stars left (next iteration limit 5403)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits N_match=4912 sigma_overall_arcsec=0.348 sigma_q1_arcsec=0.324 sigma_q2_arcsec=0.328 sigma_q3_arcsec=0.396 sigma_q4_arcsec=0.321 n_q1=1749 n_q2=874 n_q3=1504 n_q4=785 worst_quadrant_to_overall_ratio=1.139
The image catalog is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits -region wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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.s24uPGjHBz (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS_IMAGE_NAME=wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS-calibrated image found: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Checking if the catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS catalog name: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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=134, bad_region=272, passed=1451
Got 1451 stars (including 1067 good ones) from the SExtractor catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat 
util/solve_plate_with_UCAC5 got 1451 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.0'
Seting catalog search parameters based on the expected field of view 937.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013014 (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 0.010411 (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 804 to 865 (Dec 70.9 to 82.8)
Done reading UCAC5 zone files...
Matched 1035 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1034 matched stars entering correct_measured_positions(), 1027 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1034 matched stars entering correct_measured_positions(), 1195 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 

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 804 to 865 (Dec 70.9 to 82.8)
Done reading UCAC5 zone files...
Matched 1035 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1034 matched stars entering correct_measured_positions(), 1196 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Accuracy estimation diagnostic: 1034 matched stars entering correct_measured_positions(), 1196 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Excluding outliers - 1034 stars left (next iteration limit 1137)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1034 robust_rms=6.955 arcsec worst_quadrant_rms=11.232 arcsec
SIP_REFIT: SIP order 3 trial: matched=1034 robust_rms=0.560 arcsec worst_quadrant_rms=0.604 arcsec
SIP_REFIT: SIP order 5 trial: matched=1034 robust_rms=0.530 arcsec worst_quadrant_rms=0.577 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=1034 robust_rms_before=0.766 arcsec robust_rms_before_corrected=0.570 arcsec robust_rms_after=0.560 arcsec worst_quadrant_rms_before=0.644 worst_quadrant_rms_after=0.604
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.644 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits N_match=1034 sigma_overall_arcsec=0.550 sigma_q1_arcsec=0.500 sigma_q2_arcsec=0.538 sigma_q3_arcsec=0.634 sigma_q4_arcsec=0.576 n_q1=429 n_q2=209 n_q3=262 n_q4=134 worst_quadrant_to_overall_ratio=1.153
The image catalog is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits -region wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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.yxobSnlYLM (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS_IMAGE_NAME=wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS-calibrated image found: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Checking if the catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS catalog name: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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=148, bad_region=286, passed=1507
Got 1507 stars (including 1097 good ones) from the SExtractor catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat 
util/solve_plate_with_UCAC5 got 1507 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 936.9'
Seting catalog search parameters based on the expected field of view 936.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013013 (46.8 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010410 (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 804 to 865 (Dec 70.9 to 82.7)
Done reading UCAC5 zone files...
Matched 1064 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1063 matched stars entering correct_measured_positions(), 1053 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1063 matched stars entering correct_measured_positions(), 1235 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 

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 804 to 865 (Dec 70.9 to 82.7)
Done reading UCAC5 zone files...
Matched 1064 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1063 matched stars entering correct_measured_positions(), 1238 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Accuracy estimation diagnostic: 1063 matched stars entering correct_measured_positions(), 1238 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.53" 
Excluding outliers - 1063 stars left (next iteration limit 1169)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1063 robust_rms=6.978 arcsec worst_quadrant_rms=10.524 arcsec
SIP_REFIT: SIP order 3 trial: matched=1063 robust_rms=0.544 arcsec worst_quadrant_rms=0.624 arcsec
SIP_REFIT: SIP order 5 trial: matched=1063 robust_rms=0.525 arcsec worst_quadrant_rms=0.605 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=1063 robust_rms_before=0.771 arcsec robust_rms_before_corrected=0.599 arcsec robust_rms_after=0.544 arcsec worst_quadrant_rms_before=0.772 worst_quadrant_rms_after=0.624
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Image size: 936.9'x624.8'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 15:59:49.788 +77:29:48.44 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 1507 stars ###
'wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/correct_sextractor_wcs_catalog_usingxy2sky1866529.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 3, robust RMS 0.771 -> 0.544 arcsec)
WCS_QUALITY_DIAG: file=fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits N_match=1063 sigma_overall_arcsec=0.554 sigma_q1_arcsec=0.544 sigma_q2_arcsec=0.489 sigma_q3_arcsec=0.683 sigma_q4_arcsec=0.564 n_q1=433 n_q2=226 n_q3=267 n_q4=137 worst_quadrant_to_overall_ratio=1.232
The image catalog is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits -region wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits to local_wcs_cache/
'wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits' -> 'local_wcs_cache/wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits'
Saving the final (post-refit) wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits to local_wcs_cache/
'wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits' -> 'local_wcs_cache/wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits'
Saving the final (post-refit) wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits to local_wcs_cache/
'wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits' -> 'local_wcs_cache/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits'
Saving the final (post-refit) wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits to local_wcs_cache/
'wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits' -> 'local_wcs_cache/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits sigma_overall=0.324 worst_q_ratio=1.408
ref2=UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits sigma_overall=0.348 worst_q_ratio=1.139
new1=fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits sigma_overall=0.550 worst_q_ratio=1.153
new2=fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits sigma_overall=0.554 worst_q_ratio=1.232
reference average sigma_overall=0.336 worst_q_ratio=1.2735
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293_astrometric_residuals.png (4897 matched stars from wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.28 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274_astrometric_residuals.png (4912 matched stars from wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.30 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762_astrometric_residuals.png (1034 matched stars from wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.51 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763_astrometric_residuals.png (1063 matched stars from wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.44 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits'
Saving fully-calibrated image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits'
Preparing the HTML report for the field UMi-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMi-01-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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
  
SExtractor catalog cache: saved UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.cat to cache
SExtractor catalog cache: saved UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Creating symlink local_wcs_cache/wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Creating symlink local_wcs_cache/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found 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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits exists and is non-empty
wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits exists and is non-empty
wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits exists and is non-empty
wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (1st reference image)
verification OK: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Image size: 941.5'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 16:00:02.579 +77:29:59.05 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits (1st new image)
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Image size: 937.0'x624.8'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 15:59:48.527 +77:30:29.16 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 16:00:02.579 +77:29:59.05
Second-epoch image center 15:59:48.527 +77:30:29.16
Angular distance between the image centers 0.0152 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits (2nd new image)
verification OK: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Image size: 936.9'x624.8'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 15:59:49.788 +77:29:48.44 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 16:00:02.579 +77:29:59.05
Second-epoch image center 15:59:49.788 +77:29:48.44
Angular distance between the image centers 0.0119 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  15:59:48.527 +77:30:29.16
Second-epoch second image center 15:59:49.788 +77:29:48.44
Angular distance between the image centers 0.01137 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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits &> /tmp/tmp.bhTpXrt8dH
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits &> /tmp/tmp.Kq6681CtkI
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits &> /tmp/tmp.06kUW5wc1v
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits &> /tmp/tmp.X0UwSxpH6y
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Calibrating the magnitude scale
Found non-empty wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat 
Found non-empty wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits and wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat
The reference image (wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits) and catalog (wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat) found
'wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat' -> 'wcsmag.cat'
Read 63033 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.0727 to 286.1546 deg, Dec +70.2810 to +82.8119 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 192.0727 to 286.1546 deg, Dec 70.2810 to 82.8119 deg
Loaded 12774 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): 5842 out of 6790 total matches.
Matched with Tycho-2 6790 out of 63033 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.673850
a=0.000000 b=1.000000 c=22.673850
From vast_summary.log: estimated ref. image limiting mag.:  -7.18
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.49

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.49

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 63033 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.0727 to 286.1546 deg, Dec +70.2810 to +82.8119 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 192.0727 to 286.1546 deg, Dec 70.2810 to 82.8119 deg
Loaded 12774 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): 5842 out of 6790 total matches.
Matched with Tycho-2 6790 out of 63033 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Forced-photometry filter: calibrated wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits -> calib.txt_param_ref_wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (aperture=4.7)
Read 56082 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 192.2817 to 286.6211 deg, Dec +70.4438 to +82.8301 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 192.2817 to 286.6211 deg, Dec 70.4438 to 82.8301 deg
Loaded 12608 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): 5993 out of 6691 total matches.
Matched with Tycho-2 6691 out of 56082 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Forced-photometry filter: calibrated wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits -> calib.txt_param_ref_wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits (aperture=4.9)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 3 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
 2.2 pix  UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
 2.5 pix  fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
 2.5 pix  fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Limiting magnitude estimates:
 15.5 mag.  UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
 15.4 mag.  UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
 13.0 mag.  fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
 12.9 mag.  fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
All-image limiting magnitude estimate:  12.9 (SNR )  12.4 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.bhTpXrt8dH (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits' -> 'wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS_IMAGE_NAME=wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS-calibrated image found: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
Checking if the catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits alredy exist and is non-empty...
Catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits
WCS catalog name: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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=14, blended=3819, bad_region=14777, passed=63019
Got 63019 stars (including 45340 good ones) from the SExtractor catalog wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat 
util/solve_plate_with_UCAC5 got 63019 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 801 to 866 (Dec 70.3 to 82.8)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 4895 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 51505 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 801 to 866 (Dec 70.3 to 82.8)
Done reading UCAC5 zone files...
Matched 4900 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 51505 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 51505 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 4895 stars left (next iteration limit 5384)
Stop iterations.


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

SIP_REFIT: wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits N_match=4895 sigma_overall_arcsec=0.312 sigma_q1_arcsec=0.298 sigma_q2_arcsec=0.428 sigma_q3_arcsec=0.276 sigma_q4_arcsec=0.317 n_q1=1498 n_q2=895 n_q3=1555 n_q4=947 worst_quadrant_to_overall_ratio=1.370
The image catalog is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits -region wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.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.Kq6681CtkI (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits' -> 'wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS_IMAGE_NAME=wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS-calibrated image found: wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
Checking if the catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits alredy exist and is non-empty...
Catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat corresponding to the image wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits
WCS catalog name: wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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=21, blended=3064, bad_region=8309, passed=56061
Got 56061 stars (including 45134 good ones) from the SExtractor catalog wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat 
util/solve_plate_with_UCAC5 got 56061 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 802 to 866 (Dec 70.4 to 82.8)
Done reading UCAC5 zone files...
Matched 4910 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4906 matched stars entering correct_measured_positions(), 4906 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4906 matched stars entering correct_measured_positions(), 49956 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 802 to 866 (Dec 70.4 to 82.8)
Done reading UCAC5 zone files...
Matched 4910 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4906 matched stars entering correct_measured_positions(), 49956 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4906 matched stars entering correct_measured_positions(), 49956 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4906 stars left (next iteration limit 5396)
Stop iterations.


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

SIP_REFIT: wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits N_match=4906 sigma_overall_arcsec=0.345 sigma_q1_arcsec=0.334 sigma_q2_arcsec=0.326 sigma_q3_arcsec=0.397 sigma_q4_arcsec=0.330 n_q1=1724 n_q2=895 n_q3=1471 n_q4=816 worst_quadrant_to_overall_ratio=1.150
The image catalog is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits -region wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.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.06kUW5wc1v (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS_IMAGE_NAME=wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS-calibrated image found: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Checking if the catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
WCS catalog name: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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=349, bad_region=1281, passed=10048
Got 10048 stars (including 8558 good ones) from the SExtractor catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat 
util/solve_plate_with_UCAC5 got 10048 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.0'
Seting catalog search parameters based on the expected field of view 937.0 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013014 (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 0.010411 (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 802 to 865 (Dec 70.5 to 82.8)
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: 4887 matched stars entering correct_measured_positions(), 4887 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 8991 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 

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 802 to 865 (Dec 70.5 to 82.8)
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: 4886 matched stars entering correct_measured_positions(), 8991 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.63" 
Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 8991 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.63" 
Excluding outliers - 4886 stars left (next iteration limit 5375)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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=4886 robust_rms=6.719 arcsec worst_quadrant_rms=11.747 arcsec
SIP_REFIT: SIP order 3 trial: matched=4886 robust_rms=0.725 arcsec worst_quadrant_rms=0.789 arcsec
SIP_REFIT: SIP order 5 trial: matched=4886 robust_rms=0.704 arcsec worst_quadrant_rms=0.754 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=4886 robust_rms_before=0.887 arcsec robust_rms_before_corrected=0.674 arcsec robust_rms_after=0.725 arcsec worst_quadrant_rms_before=0.743 worst_quadrant_rms_after=0.789
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.743 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits N_match=4886 sigma_overall_arcsec=0.653 sigma_q1_arcsec=0.597 sigma_q2_arcsec=0.693 sigma_q3_arcsec=0.688 sigma_q4_arcsec=0.712 n_q1=2020 n_q2=944 n_q3=1363 n_q4=559 worst_quadrant_to_overall_ratio=1.091
The image catalog is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits -region wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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.X0UwSxpH6y (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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS_IMAGE_NAME=wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS-calibrated image found: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Checking if the catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits alredy exist and is non-empty...
Catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat corresponding to the image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
WCS catalog name: wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=1, blended=439, bad_region=1411, passed=10537
Got 10537 stars (including 8836 good ones) from the SExtractor catalog wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat 
util/solve_plate_with_UCAC5 got 10537 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 936.9'
Seting catalog search parameters based on the expected field of view 936.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013013 (46.8 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010410 (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 802 to 865 (Dec 70.5 to 82.8)
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: 4889 matched stars entering correct_measured_positions(), 4889 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.59" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 9416 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.59" 

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 802 to 865 (Dec 70.5 to 82.8)
Done reading UCAC5 zone files...
Matched 4898 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(), 9416 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.60" 
Accuracy estimation diagnostic: 4889 matched stars entering correct_measured_positions(), 9416 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.61" 
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_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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=4889 robust_rms=6.812 arcsec worst_quadrant_rms=10.733 arcsec
SIP_REFIT: SIP order 3 trial: matched=4889 robust_rms=0.711 arcsec worst_quadrant_rms=0.803 arcsec
SIP_REFIT: SIP order 5 trial: matched=4889 robust_rms=0.685 arcsec worst_quadrant_rms=0.769 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=4889 robust_rms_before=0.710 arcsec robust_rms_before_corrected=0.653 arcsec robust_rms_after=0.711 arcsec worst_quadrant_rms_before=0.734 worst_quadrant_rms_after=0.803
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.734 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits N_match=4889 sigma_overall_arcsec=0.634 sigma_q1_arcsec=0.583 sigma_q2_arcsec=0.629 sigma_q3_arcsec=0.695 sigma_q4_arcsec=0.683 n_q1=2033 n_q2=979 n_q3=1332 n_q4=545 worst_quadrant_to_overall_ratio=1.096
The image catalog is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits -region wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Saving fully-calibrated image wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.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_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/wcs_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits
Preparing the HTML report for the field UMi-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMi-01-Q2b1x1_2026-04-16_04-06-17_20.00sec_-5.00C_LIGHTs_0293.fits at 15:29:15.23 +78:38:55.4:  11.30 +/- 0.01  detection
Forced photometry on wcs_UMi-01-Q2b1x1_2026-06-17_02-08-44_20.00sec_5.00C_LIGHT_0274.fits at 15:29:15.23 +78:38:55.4:  11.79 +/- 0.01  detection
Forced photometry reference-image weighted average:  11.41 +/- 0.01
Forced photometry filter REJECTED candidate at 15:29:15.23 +78:38:55.4: ref_mag=11.41 +/- 0.01 new_mean_mag=11.9906 delta=-0.58 (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 88046_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763
The candidate 88046_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763 did not pass the final checks
Discovery image 2     2026 09 04.48114    2461287.98114    12.51    15:44:28.69 +80:57:35.1   5040 1072   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits

**** FOUND  15:44:28.40 +80:57:34.8 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 88073_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763
The candidate 88073_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763 did not pass the final checks
Discovery image 1     2026 09 04.48056    2461287.98056    12.28    15:29:14.92 +78:38:56.0   5654 2399   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-31-49_20.00sec_-0.00C_LIGHT_0762.fits
Discovery image 2     2026 09 04.48114    2461287.98114    11.89    15:29:15.53 +78:38:54.8   5654 2392   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits

  
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Considering the candidate 61527_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763
The candidate 61527_fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763 did not pass the final checks
Discovery image 3     2026 09 04.48114    2461287.98114    9.43    14:45:26.12 +78:52:39.7   6859 1903   /data_ssd/NMW-TexasTech/workdir//img_2026-09-04_CI_UMi-01-Q2b1x1_063433_TTUQ2b1x1_1851338_Da4IZJmZ/fd_UMi-01-Q2b1x1_2026-09-04_06-32-40_20.00sec_0.00C_LIGHT_0763.fits

**** FOUND  14:45:26.15 +78:52:39.9 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-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed UMi-01-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)2461287.98055520 -observatory V36
11:20:46.14 +05:40:12.2 Mercury (-1.1mag)
13:28:46.98 -13:25:34.8 Venus (-4.7mag)
07:06:20.91 +23:09:02.8 Mars (1.2mag)
09:06:43.04 +17:07:21.8 Jupiter (-1.8mag)
00:52:21.81 +02:43:08.6 Saturn (0.5mag)
04:13:38.33 +21:01:52.0 Uranus (5.7mag)
00:14:00.55 -00:01:26.9 Neptune (7.7mag)
20:25:47.53 -23:38:56.7 Pluto (14.5mag)
04:47:24.89 +27:23:33.8 Moon (-10.3mag)
-rw-r--r-- 1 apache apache 363 Sep  4 06:36 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461287.98055520:
09:06:39.25 +17:07:41.6 Io (6.2mag)
09:06:34.68 +17:08:03.5 Europa (6.3mag)
09:06:46.42 +17:07:08.0 Ganymede (5.7mag)
09:06:22.78 +17:08:59.3 Callisto (6.9mag)
09:04:24.10 +17:22:35.3 Himalia (15.7mag)
09:06:45.60 +17:07:10.2 Thebe (16.6mag)
09:04:02.76 +17:16:44.8 Elara (17.7mag)
09:10:40.33 +16:35:49.1 Pasiphae (17.9mag)
09:08:00.27 +17:24:22.5 Carme (19.0mag)
00:52:30.71 +02:43:14.8 Titan (8.3mag)
00:52:25.83 +02:42:51.8 Rhea (9.6mag)
00:52:43.98 +02:45:49.3 Iapetus (11.0mag)
00:52:27.12 +02:42:24.1 Hyperion (14.3mag)
00:51:11.57 +02:33:09.1 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  4 06:36 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461287.98055520:
21:41:44.62 -01:53:32.3 JWST
17:28:15.52 +36:28:05.5 Chandra
07:02:05.06 -03:12:40.5 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  4 06:36 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461287.98055520 -observatory V36
03:38:39.07 +19:12:16.8 17.4mag P/1996 R2 (Lagerkvist)
18:02:00.30 -34:15:43.6 14.3mag P/2010 H2 (Vales)
07:17:18.41 -70:08:53.7 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:15:20.71 +33:37:41.2 17.7mag C/2017 K2 (PANSTARRS)
04:47:05.45 +45:02:43.0 15.7mag P/2021 N1 (ZTF)
04:47:05.48 +45:02:42.9 15.7mag P/2021 N1 (ZTF)
22:15:45.26 +29:00:21.0 17.4mag C/2022 E2 (ATLAS)
07:08:00.31 +26:01:56.2 16.9mag C/2022 N2 (PANSTARRS)
10:46:53.89 +27:19:46.2 17.1mag C/2022 QE78 (ATLAS)
09:46:52.33 +05:14:52.6 18.0mag C/2022 R6 (PANSTARRS)
15:30:23.00 -15:24:05.2 14.8mag C/2023 R1 (PANSTARRS)
08:35:53.02 +32:43:23.3 15.8mag C/2024 E1 (Wierzchos)
15:06:16.62 +15:21:21.3 17.9mag C/2024 G6 (ATLAS)
18:35:29.73 +43:16:22.8 13.7mag C/2024 J3 (ATLAS)
20:30:05.05 +49:26:10.0 17.4mag C/2024 R4 (PANSTARRS)
05:34:03.44 -12:59:28.7 15.1mag C/2024 T5 (ATLAS)
07:10:36.26 +19:06:08.1 17.8mag C/2025 J1 (Borisov)
11:13:28.97 +18:59:13.4 16.9mag C/2025 V2 (Rankin)
13:17:20.35 +00:20:30.9 16.8mag C/2025 Y1 (ATLAS)
16:34:23.29 +74:28:53.5 16.2mag C/2026 A2 (Bok)
03:07:02.97 +46:12:45.0 17.4mag C/2026 B2 (Sun-Gao)
12:10:40.59 +11:03:05.2 17.5mag A/2026 E1
22:23:38.95 -34:47:39.4 13.3mag 10P/Tempel
11:46:17.65 -05:15:30.3 16.3mag 29P/Schwassmann-Wachmann
12:02:54.02 -04:12:02.4 17.6mag 63P/Wild
00:46:09.86 -06:53:22.6 15.4mag 65P/Gunn
06:33:49.07 +19:27:35.1 17.1mag 78P/Gehrels
03:16:57.58 +14:57:15.7 16.7mag 88P/Howell
05:28:56.44 +27:32:57.5 17.5mag 112P/Urata-Niijima
07:23:22.17 +25:31:02.6 17.9mag 114P/Wiseman-Skiff
10:21:35.01 +21:27:36.4 14.8mag 123P/West-Hartley
12:40:26.50 -20:21:01.9 17.4mag 124P/Mrkos
06:13:57.23 +20:43:23.2 15.9mag 128P/Shoemaker-Holt
23:53:46.31 +02:31:08.0 17.3mag 139P/Vaisala-Oterma
02:42:01.04 -17:53:45.0 15.4mag 161P/Hartley-IRAS
09:44:00.26 +15:41:49.3 12.0mag 169P/NEAT
03:21:53.43 +08:41:36.9 14.4mag 220P/McNaught
04:40:23.18 +35:25:20.1 15.2mag 260P/McNaught
08:24:15.27 +35:59:25.3 17.3mag 295P/LINEAR
15:23:27.23 +00:04:05.1 17.9mag 391P/Kowalski
09:25:20.54 +16:59:41.2 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.0K Sep  4 06:36 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
-rw-r--r-- 1 apache apache 5.7K Sep  4 06:36 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Sep  4 06:36 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
21:12:40.320 +04:03:41.65  AT 2026yfu  2026-08-06.43 21.27
17:57:17.885 +25:16:17.44  AT 2026yft  2026-08-06.41 20.23
15:51:50.093 +15:05:39.28  AT 2026yfs  2026-08-07.27 20.99
00:57:22.776 -24:27:56.06  AT 2026yfr  2026-06-23.81 20.08
00:30:20.591 -54:41:49.80  AT 2026yfq  2026-07-20.77 19.38
02:32:12.791 -22:10:48.74  AT 2026yfp  2026-07-20.79 19.5
01:41:52.083 -42:11:48.39  AT 2026yfo  2026-07-20.75 20.09
23:56:49.152 -38:37:39.87  AT 2026yfn  2026-07-27.78 19.61
23:42:35.374 -40:35:39.21  AT 2026yfm  2026-08-06.67 20.01
00:59:35.904 -40:19:34.17  AT 2026yfl  2026-08-06.70 20.35
00:09:47.092 -52:13:41.85  AT 2026yfk  2026-08-06.71 19.78
01:29:51.734 -23:34:18.41  AT 2026yfj  2026-08-06.73 19.55
02:10:09.536 -24:08:21.00  AT 2026yfi  2026-07-20.77 20.04
03:25:21.580 -50:44:20.31  AT 2026yfh  2026-08-06.77 20.01
04:26:28.926 -21:02:33.55  AT 2026yfg  2026-08-06.78 19.34
02:45:19.042 -55:38:20.40  AT 2026yff  2026-08-06.78 19.68
03:57:14.486 -09:10:35.02  AT 2026yfe  2026-08-06.79 19.58
04:48:25.059 -18:04:11.02  AT 2026yfd  2026-08-06.79 19.24
03:12:28.807 -53:09:31.17  AT 2026yfc  2026-08-06.80 20.22
03:12:34.990 -53:15:23.14  AT 2026yfb  2026-08-06.80 19.82
-rw-r--r-- 1 apache apache 88K Sep  4 06:36 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Fri Sep  4 06:36:32 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 25s (0.42 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 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: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 33s (0.55 min)
TIMING SExtractor: 4 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 8s (0.13 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 7s (0.12 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 18s (0.30 min)
FIELD_UMi-01-Q2b1x1: 64s (1.07 min)
=======================================
TOTAL_RUNTIME: 65s (1.08 min)
Finished: Fri Sep  4 06:37:37 CDT 2026