FITS images used in this processing run:

Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Field UMa-04-Q2b1x1 reference image: UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Field UMa-04-Q2b1x1 second-epoch image: UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461269.68901479 17.08.2026 04:32:00.878   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.49
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):  6284
Objects passed selection criteria:  6248
Measurements per detected object (mean, median, min, max):    2.6    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.6    2.0    2    4
Average stars detected per image: 4296
Average stars matched: 3984 (92.7374 %)
Memory usage VmPeak:   232456 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 17 00:05:12 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
First image: 2461093.77304396 22.02.2026 06:33:00.998   /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Last  image: 2461269.68901479 17.08.2026 04:32:00.878   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 18
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.21
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 10 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  33015
Objects passed selection criteria:  32892
Measurements per detected object (mean, median, min, max):    2.8    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.8    2.0    2    4
Average stars detected per image: 24160.5
Average stars matched: 22070 (91.3474 %)
Memory usage VmPeak:   254076 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 17 00:05:52 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: 
UMa-04-Q2b1x1
#######################################
########### Starting UMa-04-Q2b1x1 ###########
Processing UMa-04-Q2b1x1
server tau has sufficient free disk space available: 741061 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 741061 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.png' -> 'transient_report/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits_preview.png'

UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits


renamed 'UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.png' -> 'transient_report/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits_preview.png'

UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 482.7200
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 528.8252
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1214.7725
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 399.4169
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1218.2594
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 397.1765
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.51652
INFO:                  SECOND_EPOCH__SD_ratio= 0.006
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 =     22.6700000762939 / [degC] Focuser temperature
AMBTEMP =                 25.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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= '2026-08-16T23:31:02.5730584' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-17T04:31:02.5730584' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61269.1882242244 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-17T04:31:12.4770598' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61269.1883388544 / 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      =     180.003651220963 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9999747685433 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     20.3963888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     332.001111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.84901205679157 / 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  = 'UMa-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20478 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20478 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.6700000762939 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.6700000762939 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 39.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.49 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 19.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/d_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits :)

Spent 0.540782 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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/d_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     22.6800003051758 / [degC] Focuser temperature
AMBTEMP =                 25.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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= '2026-08-16T23:32:00.8784017' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-17T04:32:00.8784017' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61269.1888990509 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-17T04:32:10.7793401' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61269.189013646 / 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      =     180.003651294319 / [deg] RA of telescope" status=0
Record 32: "DEC     =     61.9999748113102 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     20.3016666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     332.069722222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.86152648120529 / 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  = 'UMa-04'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+62 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20478 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20478 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.6800003051758 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.6800003051758 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 10.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 39.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               905.49 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 19.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=                  0.0 / [kph] Wind gust" status=0
Record 61: "WINDSPD =                  0.0 / [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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/d_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits :)

Spent 0.552311 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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/d_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits



fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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: 2461269.68833997
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 12:00:03.636 +62:00:23.32 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Image size: 937.9'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 12:00:02.038 +61:59:57.85 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:02.038 +61:59:57.85
Angular distance between the image centers 0.0077 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Image size: 937.9'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 11:59:57.403 +62:00:28.11 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:57.403 +62:00:28.11
Angular distance between the image centers 0.0123 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  12:00:02.038 +61:59:57.85
Second-epoch second image center 11:59:57.403 +62:00:28.11
Angular distance between the image centers 0.01236 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.FOgHLnkriO
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.hw8WZqVMRi
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits &> /tmp/tmp.QZogRHovQP
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits &> /tmp/tmp.me4svx1T4b
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 7332 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.4317 deg, Dec +55.2640 to +67.4533 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.4317 deg, Dec 55.2640 to 67.4533 deg
Loaded 6574 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3976 out of 4190 total matches.
Matched with Tycho-2 4190 out of 7332 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.890400
a=0.000000 b=1.000000 c=22.890400
From vast_summary.log: estimated ref. image limiting mag.:  -7.49
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.40

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.40

Lightcurve magnitude calibration plot:


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

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


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

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=6.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.2 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.1 pix  fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
 2.2 pix  fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Limiting magnitude estimates:
 15.4 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.4 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 14.2 mag.  fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
 14.2 mag.  fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
All-image limiting magnitude estimate:  14.2 (SNR )  11.5 (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.FOgHLnkriO (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=506, bad_region=1672, passed=7332
Got 7332 stars (including 5274 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 7332 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

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

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


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4895 sigma_overall_arcsec=0.383 sigma_q1_arcsec=0.450 sigma_q2_arcsec=0.405 sigma_q3_arcsec=0.341 sigma_q4_arcsec=0.345 n_q1=1452 n_q2=848 n_q3=1641 n_q4=954 worst_quadrant_to_overall_ratio=1.173
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.hw8WZqVMRi (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=494, bad_region=1659, passed=7282
Got 7282 stars (including 5242 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 7282 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

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

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


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4898 sigma_overall_arcsec=0.417 sigma_q1_arcsec=0.480 sigma_q2_arcsec=0.441 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.397 n_q1=1451 n_q2=838 n_q3=1650 n_q4=959 worst_quadrant_to_overall_ratio=1.152
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.QZogRHovQP (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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=205, bad_region=386, passed=3395
Got 3395 stars (including 2818 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat 
util/solve_plate_with_UCAC5 got 3395 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (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 0.010421 (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 730 to 788 (Dec 56.1 to 67.2)
Done reading UCAC5 zone files...
Matched 2765 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2759 matched stars entering correct_measured_positions(), 2759 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2759 matched stars entering correct_measured_positions(), 3094 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 730 to 788 (Dec 56.1 to 67.2)
Done reading UCAC5 zone files...
Matched 2765 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2759 matched stars entering correct_measured_positions(), 3094 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 2759 matched stars entering correct_measured_positions(), 3094 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 2759 stars left (next iteration limit 3034)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2759 robust_rms=6.141 arcsec worst_quadrant_rms=9.493 arcsec
SIP_REFIT: SIP order 3 trial: matched=2759 robust_rms=0.442 arcsec worst_quadrant_rms=0.475 arcsec
SIP_REFIT: SIP order 5 trial: matched=2759 robust_rms=0.382 arcsec worst_quadrant_rms=0.418 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2759 robust_rms_before=0.904 arcsec robust_rms_before_corrected=0.367 arcsec robust_rms_after=0.382 arcsec worst_quadrant_rms_before=0.373 worst_quadrant_rms_after=0.418
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.373 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits N_match=2759 sigma_overall_arcsec=0.365 sigma_q1_arcsec=0.364 sigma_q2_arcsec=0.368 sigma_q3_arcsec=0.365 sigma_q4_arcsec=0.356 n_q1=1027 n_q2=504 n_q3=857 n_q4=371 worst_quadrant_to_overall_ratio=1.007
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits -region wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.me4svx1T4b (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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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=195, bad_region=372, passed=3352
Got 3352 stars (including 2795 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat 
util/solve_plate_with_UCAC5 got 3352 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (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 0.010421 (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 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 2741 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2735 matched stars entering correct_measured_positions(), 2735 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2735 matched stars entering correct_measured_positions(), 3057 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 2740 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2734 matched stars entering correct_measured_positions(), 3057 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 2734 matched stars entering correct_measured_positions(), 3057 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 2734 stars left (next iteration limit 3008)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2734 robust_rms=5.967 arcsec worst_quadrant_rms=10.317 arcsec
SIP_REFIT: SIP order 3 trial: matched=2734 robust_rms=0.457 arcsec worst_quadrant_rms=0.509 arcsec
SIP_REFIT: SIP order 5 trial: matched=2734 robust_rms=0.385 arcsec worst_quadrant_rms=0.444 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2734 robust_rms_before=0.887 arcsec robust_rms_before_corrected=0.348 arcsec robust_rms_after=0.385 arcsec worst_quadrant_rms_before=0.369 worst_quadrant_rms_after=0.444
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.369 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits N_match=2734 sigma_overall_arcsec=0.354 sigma_q1_arcsec=0.333 sigma_q2_arcsec=0.335 sigma_q3_arcsec=0.386 sigma_q4_arcsec=0.343 n_q1=1032 n_q2=485 n_q3=854 n_q4=363 worst_quadrant_to_overall_ratio=1.091
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits -region wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
Saving the final (post-refit) wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits to local_wcs_cache/
'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits'
Saving the final (post-refit) wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits to local_wcs_cache/
'wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits' -> 'local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits sigma_overall=0.383 worst_q_ratio=1.173
ref2=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits sigma_overall=0.417 worst_q_ratio=1.152
new1=fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits sigma_overall=0.365 worst_q_ratio=1.007
new2=fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits sigma_overall=0.354 worst_q_ratio=1.091
reference average sigma_overall=0.4 worst_q_ratio=1.1625
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

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


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


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152_astrometric_residuals.png (2759 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153_astrometric_residuals.png (2734 matched stars from wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits'
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits'
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
  
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.cat to cache
SExtractor catalog cache: saved UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Creating symlink local_wcs_cache/wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Creating symlink local_wcs_cache/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits exists and is non-empty
wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits exists and is non-empty
wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (1st reference image)
verification OK: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Image size: 941.9'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 12:00:03.636 +62:00:23.32 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits (1st new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Image size: 937.9'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 12:00:02.038 +61:59:57.85 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 12:00:02.038 +61:59:57.85
Angular distance between the image centers 0.0077 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits (2nd new image)
verification OK: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Image size: 937.9'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 11:59:57.403 +62:00:28.11 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 12:00:03.636 +62:00:23.32
Second-epoch image center 11:59:57.403 +62:00:28.11
Angular distance between the image centers 0.0123 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  12:00:02.038 +61:59:57.85
Second-epoch second image center 11:59:57.403 +62:00:28.11
Angular distance between the image centers 0.01236 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits &> /tmp/tmp.uZnAo6gqYg
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits &> /tmp/tmp.jLnBwHZ6Kk
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits &> /tmp/tmp.4lMRlWAJXg
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits &> /tmp/tmp.w1aonaRCJ0
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Found non-empty wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits and wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat
The reference image (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits) and catalog (wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat) found
'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat' -> 'wcsmag.cat'
Read 37333 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 159.9729 to 198.6786 deg, Dec +55.2253 to +67.4860 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 159.9729 to 198.6786 deg, Dec 55.2253 to 67.4860 deg
Loaded 6642 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3749 out of 4194 total matches.
Matched with Tycho-2 4194 out of 37333 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.782200
a=0.000000 b=1.000000 c=22.782200
From vast_summary.log: estimated ref. image limiting mag.:  -7.21
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.57

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.57

Lightcurve magnitude calibration plot:


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

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


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

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


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Forced-photometry filter: calibrated wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -> calib.txt_param_ref_wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (aperture=5.0)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 12 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 2.1 pix  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 2.0 pix  fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
 2.1 pix  fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Limiting magnitude estimates:
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
 15.6 mag.  UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
 14.5 mag.  fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
 14.4 mag.  fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
All-image limiting magnitude estimate:  14.4 (SNR )  14.1 (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.uZnAo6gqYg (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=17, blended=1765, bad_region=7377, passed=37316
Got 37316 stars (including 28488 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat 
util/solve_plate_with_UCAC5 got 37316 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

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

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


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits N_match=4899 sigma_overall_arcsec=0.367 sigma_q1_arcsec=0.432 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.330 sigma_q4_arcsec=0.338 n_q1=1449 n_q2=842 n_q3=1676 n_q4=932 worst_quadrant_to_overall_ratio=1.178
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.jLnBwHZ6Kk (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits' -> 'wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS_IMAGE_NAME=wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS-calibrated image found: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
Checking if the catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits alredy exist and is non-empty...
Catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat corresponding to the image wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits
WCS catalog name: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=16, blended=1739, bad_region=7420, passed=37478
Got 37478 stars (including 28617 good ones) from the SExtractor catalog wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat 
util/solve_plate_with_UCAC5 got 37478 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

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

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


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

SIP_REFIT: wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits N_match=4900 sigma_overall_arcsec=0.393 sigma_q1_arcsec=0.451 sigma_q2_arcsec=0.417 sigma_q3_arcsec=0.363 sigma_q4_arcsec=0.362 n_q1=1448 n_q2=847 n_q3=1676 n_q4=929 worst_quadrant_to_overall_ratio=1.148
The image catalog is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits -region wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.4lMRlWAJXg (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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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=8, blended=670, bad_region=1644, passed=20489
Got 20489 stars (including 18275 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat 
util/solve_plate_with_UCAC5 got 20489 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (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 0.010421 (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 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 4890 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4885 matched stars entering correct_measured_positions(), 4885 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4885 matched stars entering correct_measured_positions(), 19338 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 4891 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4885 matched stars entering correct_measured_positions(), 19338 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4885 matched stars entering correct_measured_positions(), 19338 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4885 stars left (next iteration limit 5373)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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=4885 robust_rms=5.722 arcsec worst_quadrant_rms=10.212 arcsec
SIP_REFIT: SIP order 3 trial: matched=4885 robust_rms=0.466 arcsec worst_quadrant_rms=0.502 arcsec
SIP_REFIT: SIP order 5 trial: matched=4885 robust_rms=0.399 arcsec worst_quadrant_rms=0.429 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4885 robust_rms_before=0.908 arcsec robust_rms_before_corrected=0.374 arcsec robust_rms_after=0.399 arcsec worst_quadrant_rms_before=0.381 worst_quadrant_rms_after=0.429
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.381 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits N_match=4885 sigma_overall_arcsec=0.382 sigma_q1_arcsec=0.366 sigma_q2_arcsec=0.389 sigma_q3_arcsec=0.392 sigma_q4_arcsec=0.405 n_q1=1811 n_q2=838 n_q3=1604 n_q4=632 worst_quadrant_to_overall_ratio=1.061
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits -region wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.w1aonaRCJ0 (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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS_IMAGE_NAME=wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS-calibrated image found: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Checking if the catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat corresponding to the image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
WCS catalog name: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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=11, blended=657, bad_region=1537, passed=19987
Got 19987 stars (including 17874 good ones) from the SExtractor catalog wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat 
util/solve_plate_with_UCAC5 got 19987 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.9'
Seting catalog search parameters based on the expected field of view 937.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013026 (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 0.010421 (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 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 4891 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: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 18898 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 730 to 788 (Dec 56.1 to 67.3)
Done reading UCAC5 zone files...
Matched 4891 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 18898 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 18898 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4887 stars left (next iteration limit 5375)
Stop iterations.


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

SIP_REFIT: wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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=4887 robust_rms=5.688 arcsec worst_quadrant_rms=10.689 arcsec
SIP_REFIT: SIP order 3 trial: matched=4887 robust_rms=0.484 arcsec worst_quadrant_rms=0.535 arcsec
SIP_REFIT: SIP order 5 trial: matched=4887 robust_rms=0.404 arcsec worst_quadrant_rms=0.448 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4887 robust_rms_before=0.895 arcsec robust_rms_before_corrected=0.367 arcsec robust_rms_after=0.404 arcsec worst_quadrant_rms_before=0.392 worst_quadrant_rms_after=0.448
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.392 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits N_match=4887 sigma_overall_arcsec=0.366 sigma_q1_arcsec=0.344 sigma_q2_arcsec=0.358 sigma_q3_arcsec=0.394 sigma_q4_arcsec=0.373 n_q1=1834 n_q2=830 n_q3=1610 n_q4=613 worst_quadrant_to_overall_ratio=1.079
The image catalog is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits -region wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Saving fully-calibrated image wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.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_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/wcs_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits
Preparing the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 11:28:35.31 +60:31:37.2:  13.31 +/- 0.03  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 12:10:50.28 +63:01:52.1:  14.17 +/- 0.06  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 12:13:08.48 +62:33:58.1:  14.53 +/- 0.08  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-33-00_20.00sec_-14.90C_LIGHT_0278.fits at 11:52:54.88 +60:20:35.3:  13.07 +/- 0.02  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 12:10:50.28 +63:01:52.1:  14.11 +/- 0.05  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 12:13:08.48 +62:33:58.1:  14.37 +/- 0.07  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 11:28:35.31 +60:31:37.2:  13.23 +/- 0.03  detection
Forced photometry on wcs_UMa-04-Q2b1x1_2026-02-22_00-34-07_20.00sec_-14.90C_LIGHT_0279.fits at 11:52:54.88 +60:20:35.3:  13.07 +/- 0.02  detection
Forced photometry reference-image weighted average:  14.14 +/- 0.04
Forced photometry reference-image weighted average:  14.44 +/- 0.05
Forced photometry reference-image weighted average:  13.26 +/- 0.02
Forced photometry reference-image weighted average:  13.07 +/- 0.01
Forced photometry filter REJECTED candidate at 12:10:50.28 +63:01:52.1: ref_mag=14.14 +/- 0.04 new_mean_mag=14.2329 delta=-0.09 (need > 0.90)
Forced photometry filter REJECTED candidate at 12:13:08.48 +62:33:58.1: ref_mag=14.44 +/- 0.05 new_mean_mag=14.3219 delta=0.12 (need > 0.90)
Forced photometry filter REJECTED candidate at 11:52:54.88 +60:20:35.3: ref_mag=13.07 +/- 0.01 new_mean_mag=13.1090 delta=-0.04 (need > 0.90)
Forced photometry filter REJECTED candidate at 11:28:35.31 +60:31:37.2: ref_mag=13.26 +/- 0.02 new_mean_mag=13.2418 delta=0.02 (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: 1s
  
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Considering the candidate 52065_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 52065_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 1     2026 08 17.18834    2461269.68834    14.36    12:13:08.43 +62:33:57.8   3871 2848   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Discovery image 2     2026 08 17.18901    2461269.68901    14.29    12:13:08.54 +62:33:58.4   3866 2853   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

  
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Considering the candidate 52067_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 52067_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 1     2026 08 17.18834    2461269.68834    14.21    12:10:50.22 +63:01:51.6   4038 2571   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Discovery image 2     2026 08 17.18901    2461269.68901    14.25    12:10:50.34 +63:01:52.6   4032 2576   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

  
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Considering the candidate 52070_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 52070_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 1     2026 08 17.18834    2461269.68834    13.31    11:28:35.28 +60:31:37.4   7136 3898   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Discovery image 2     2026 08 17.18901    2461269.68901    13.19    11:28:35.34 +60:31:37.1   7130 3903   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

  
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Considering the candidate 52071_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 52071_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    13.72    12:18:38.52 +63:15:52.7   3505 2415   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  12:18:38.44 +63:15:52.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52073_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 52073_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 1     2026 08 17.18834    2461269.68834    13.06    11:52:54.84 +60:20:35.6   5339 4178   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-31-02_20.00sec_-0.00C_LIGHT_0152.fits
Discovery image 2     2026 08 17.18901    2461269.68901    13.19    11:52:54.92 +60:20:35.0   5333 4183   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

  
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Considering the candidate 53534_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 53534_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    12.21    11:45:01.57 +64:47:35.0   5718 1463   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  11:45:01.57 +64:47:35.5 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 54925_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 54925_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    13.08    11:40:23.08 +57:57:09.0   6404 5561   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  11:40:23.06 +57:57:08.2 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 55819_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 55819_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    13.54    11:59:58.85 +59:05:43.1   4820 4956   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  11:59:58.89 +59:05:42.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 55874_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 55874_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    13.42    11:58:21.28 +61:26:11.7   4911 3537   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  11:58:21.30 +61:26:11.2 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 56970_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 56970_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    13.80    11:56:12.68 +61:00:04.2   5074 3795   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  11:56:12.77 +61:00:04.2 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 57083_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 57083_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 2     2026 08 17.18901    2461269.68901    14.31    12:08:13.19 +63:45:37.0   4218 2138   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  12:08:13.28 +63:45:36.4 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 07651_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153
The candidate 07651_fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153 did not pass the final checks
Discovery image 3     2026 08 17.18901    2461269.68901    7.96    12:36:23.08 +59:29:14.3   2021 4584   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_UMa-04-Q2b1x1_235827_TTUQ2b1x1_3317629_LoFarMg1/fd_UMa-04-Q2b1x1_2026-08-16_23-32-00_20.00sec_-0.00C_LIGHT_0153.fits

**** FOUND  12:36:23.06 +59:29:14.4 in the exclusion list exclusion_list_bsc.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field UMa-04-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed UMa-04-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461269.68833997 -observatory V36
09:03:42.67 +18:06:38.4 Mercury (-1.4mag)
12:33:26.72 -05:22:00.6 Venus (-4.4mag)
06:15:09.65 +23:42:23.4 Mars (1.3mag)
08:50:57.25 +18:10:53.3 Jupiter (-1.8mag)
00:55:32.47 +03:07:23.7 Saturn (0.5mag)
04:12:38.21 +20:59:17.5 Uranus (5.7mag)
00:15:31.23 +00:08:59.5 Neptune (7.7mag)
20:27:18.18 -23:33:28.2 Pluto (14.5mag)
13:06:10.98 -12:17:57.0 Moon (-9.5mag)
-rw-r--r-- 1 apache apache 362 Aug 17 00:05 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461269.68833997:
08:50:57.81 +18:10:50.7 Io (6.1mag)
08:50:50.23 +18:11:25.9 Europa (6.3mag)
08:51:01.02 +18:10:34.3 Ganymede (5.6mag)
08:50:49.23 +18:11:27.2 Callisto (6.8mag)
08:48:25.31 +18:15:45.8 Himalia (15.7mag)
08:50:57.77 +18:10:51.3 Thebe (16.6mag)
08:48:02.54 +18:12:33.4 Elara (17.7mag)
08:55:05.96 +17:46:18.4 Pasiphae (17.9mag)
08:53:31.82 +18:23:12.5 Carme (19.0mag)
00:55:44.39 +03:07:04.6 Titan (8.4mag)
00:55:35.63 +03:07:05.8 Rhea (9.7mag)
00:56:02.56 +03:08:03.6 Iapetus (11.1mag)
00:55:47.00 +03:06:53.9 Hyperion (14.4mag)
00:54:43.57 +02:59:26.1 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 17 00:05 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461269.68833997:
19:43:55.19 -17:50:14.1 JWST
17:52:58.71 +33:44:38.8 Chandra
22:31:37.10 +57:32:11.7 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 17 00:05 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461269.68833997 -observatory V36
03:23:17.64 +18:04:54.1 17.6mag P/1996 R2 (Lagerkvist)
18:00:05.49 -34:32:41.8 14.1mag P/2010 H2 (Vales)
07:01:58.08 -69:15:33.1 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:12:02.04 +33:11:19.9 17.7mag C/2017 K2 (PANSTARRS)
04:08:31.48 +40:58:37.9 17.2mag P/2021 N1 (ZTF)
22:31:07.52 +30:49:17.7 17.3mag C/2022 E2 (ATLAS)
06:52:10.08 +26:22:50.0 16.8mag C/2022 N2 (PANSTARRS)
10:29:53.60 +28:04:22.1 17.0mag C/2022 QE78 (ATLAS)
09:34:51.93 +05:18:31.1 18.0mag C/2022 R6 (PANSTARRS)
15:14:17.68 -12:39:06.2 17.9mag P/2023 B1 (PANSTARRS)
20:59:21.85 +64:52:12.7 17.9mag C/2023 H5 (Lemmon)
15:39:59.56 -13:45:52.7 14.5mag C/2023 R1 (PANSTARRS)
08:17:53.60 +31:45:37.1 15.5mag C/2024 E1 (Wierzchos)
15:05:55.28 +15:33:12.2 17.8mag C/2024 G6 (ATLAS)
18:52:23.46 +43:25:58.2 13.7mag C/2024 J3 (ATLAS)
20:57:15.68 +49:36:21.9 17.5mag C/2024 R4 (PANSTARRS)
05:22:03.70 -12:54:06.4 15.4mag C/2024 T5 (ATLAS)
07:01:45.48 +22:33:19.3 17.9mag C/2025 J1 (Borisov)
10:45:38.70 +20:19:03.6 17.2mag C/2025 V2 (Rankin)
13:03:49.21 +01:43:54.5 16.9mag C/2025 Y1 (ATLAS)
16:05:24.69 +76:54:06.5 16.6mag C/2026 A2 (Bok)
03:09:41.93 +46:19:16.5 17.2mag C/2026 B2 (Sun-Gao)
11:54:20.75 +09:27:04.0 17.4mag A/2026 E1
22:07:36.89 -30:43:06.2 7.0mag 10P/Tempel
11:34:26.89 -03:58:18.1 16.3mag 29P/Schwassmann-Wachmann
11:25:56.04 +01:42:28.7 17.4mag 63P/Wild
00:52:59.89 -05:50:01.2 15.4mag 65P/Gunn
05:55:35.22 +20:27:36.4 13.7mag 78P/Gehrels
20:30:01.07 -24:30:18.7 17.6mag 84P/Giclas
03:08:33.35 +14:16:36.7 16.8mag 88P/Howell
08:18:13.89 +26:22:50.4 16.3mag 93P/Lovas
04:32:05.92 +20:22:36.0 17.3mag 112P/Urata-Niijima
06:25:54.71 +29:09:29.8 16.1mag 114P/Wiseman-Skiff
09:39:37.69 +25:04:00.6 14.9mag 123P/West-Hartley
12:01:50.39 -13:40:41.7 17.2mag 124P/Mrkos
05:49:32.79 +21:06:28.3 16.0mag 128P/Shoemaker-Holt
06:43:34.96 +18:25:14.3 17.9mag 131P/Mueller
00:01:20.96 +03:15:15.1 17.5mag 139P/Vaisala-Oterma
03:15:05.99 -18:49:25.7 13.2mag 161P/Hartley-IRAS
07:46:38.84 +38:06:11.8 16.0mag 162P/Siding Spring
12:15:26.55 +37:06:20.4 12.0mag 169P/NEAT
02:58:24.04 +09:31:04.8 17.6mag 220P/McNaught
16:46:58.51 -10:45:13.2 17.9mag 235P/LINEAR
20:17:40.58 -52:22:14.5 17.9mag 259P/Garradd
03:48:16.91 +28:50:24.3 15.3mag 260P/McNaught
07:32:10.97 +37:23:29.0 17.3mag 295P/LINEAR
15:13:49.54 +02:08:21.4 17.8mag 391P/Kowalski
09:09:02.94 +17:55:48.9 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 17 00:05 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
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
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
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
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
14:20:14.30 -30:20:51.90  AT2026ktm  2026-05-12.06 17.21
14:41:39.01 -37:13:46.40  AT2026lkm  2026-05-11.18 16.89
12:59:50.45 -10:58:38.80  SN2026kep  2026-05-9.06 17.5
13:37:29.61 -29:50:30.90  AT2026lkd  2026-05-9.09 17.23
09:46:42.01 -14:52:03.60  SN2026kmo  2026-05-8.99 17.51
15:03:05.28 +22:02:03.40  AT2026lxf  2026-05-8.07 13.88
10:23:49.41 -20:57:25.30  ASASSN-26df  2026-05-8.21 16.52
22:14:40.56 +05:04:51.60  2026lda  2026-05-7.56 16.2
21:35:33.81 -14:05:16.30  ASASSN-26de  2026-05-6.29 14.51
16:21:49.13 -61:36:14.60  ASASSN-26dd  2026-05-5.15 15.93
-rw-r--r-- 1 apache apache 5.7K Aug 17 00:05 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:42:38.68 +41:15:58.2  PNV J00423868+4115582  2026-06-05.1224  19.97Umag
19:00:42.95 -48:31:01.7  PNV J19004295-4831017  2026-05-25.0752  14.2mag
09:55:21.28 +69:02:52.6  PNV J09552128+6902526  2026-06-13.933  18.9mag
19:51:21.42 +37:06:40.0  TCP J19512142+3706400  2026-06-17.2942  16.8mag
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
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
-rw-r--r-- 1 apache apache 190K Aug 17 00:05 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
20:33:52.488 +03:24:38.01  AT 2026wvw  2026-07-23.32 20.8661
00:41:33.169 +41:10:12.40  AT 2026wvv  2026-08-02.89 17.1
23:45:36.740 -03:05:35.56  AT 2026wvu  2026-07-25.60 21.95
22:40:08.792 -06:25:00.39  AT 2026wvt  2026-07-24.51 21.53
18:01:34.940 +35:37:53.90  AT 2026wvs  2026-07-23.31 21.74
23:25:28.465 -20:01:24.81  AT 2026wvr  2026-07-26.54 20.7
23:40:24.824 -24:40:33.31  AT 2026wvq  2026-07-26.54 20.89
21:22:15.890 -02:33:52.37  AT 2026wvp  2026-07-25.44 21.07
22:10:23.762 +16:20:18.77  AT 2026wvo  2026-07-25.45 21.13
23:06:39.906 +05:33:08.21  AT 2026wvn  2026-07-24.57 21.75
00:44:57.801 +25:20:50.30  AT 2026wvm  2026-07-23.55 21.26
23:50:27.739 -03:51:06.21  AT 2026wvl  2026-07-25.58 20.96
00:25:21.084 +26:42:45.70  AT 2026wvk  2026-07-23.55 20.96
23:37:13.087 -06:14:48.44  AT 2026wvj  2026-07-25.59 22.23
00:43:40.407 -30:43:14.55  AT 2026wvi  2026-07-26.58 20.68
22:42:59.067 -07:40:12.15  AT 2026wvh  2026-07-24.50 21.36
22:23:10.327 -02:22:08.97  AT 2026wvg  2026-07-24.49 20.89
23:23:35.914 +24:11:40.27  AT 2026wvf  2026-07-25.53 20.99
00:20:12.928 +32:15:35.83  AT 2026wve  2026-07-23.54 21.08
02:30:56.254 +12:16:48.09  AT 2026wvd  2026-07-27.60 21.14
-rw-r--r-- 1 apache apache 87K Aug 17 00:05 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Aug 17 00:04:48 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 21s (0.35 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 5s (0.08 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 32s (0.53 min)
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 10s (0.17 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 10s (0.17 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 1s (0.02 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 1s (0.02 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 24s (0.40 min)
FIELD_UMa-04-Q2b1x1: 69s (1.15 min)
=======================================
TOTAL_RUNTIME: 78s (1.30 min)
Finished: Mon Aug 17 00:06:06 CDT 2026