FITS images used in this processing run:

Field CVn-01-Q2b1x1 reference image: CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Field CVn-01-Q2b1x1 reference image: CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Field CVn-01-Q2b1x1 second-epoch image: CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Field CVn-01-Q2b1x1 second-epoch image: CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
First image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Last  image: 2461257.70118425 05.08.2026 04:49:32.319   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 1
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.40
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  4281
Objects passed selection criteria:  4272
Measurements per detected object (mean, median, min, max):    3.4    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.4    4.0    2    4
Average stars detected per image: 3730.5
Average stars matched: 3636.75 (97.4869 %)
Memory usage VmPeak:   231244 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Tue Aug  4 15:05:04 CDT 2026
VaST build number  1.0rc89-188-g9fc0b030
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-04)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Aug  4 23:59:10 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: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
First image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Last  image: 2461257.70118425 05.08.2026 04:49:32.319   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 20
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.11
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: 22 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):  23771
Objects passed selection criteria:  23718
Measurements per detected object (mean, median, min, max):    3.4    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.4    4.0    2    4
Average stars detected per image: 21182
Average stars matched: 20575.5 (97.1367 %)
Memory usage VmPeak:   249464 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Tue Aug  4 15:05:04 CDT 2026
VaST build number  1.0rc89-188-g9fc0b030
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-04)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Wed Aug  5 00:00:17 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: 
CVn-01-Q2b1x1
#######################################
########### Starting CVn-01-Q2b1x1 ###########
Processing CVn-01-Q2b1x1
server tau has sufficient free disk space available: 461247 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 461247 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.png' -> 'transient_report/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits_preview.png'

CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits


renamed 'CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.png' -> 'transient_report/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits_preview.png'

CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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= 449.7917
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 438.5618
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1049.2873
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 388.2990
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1052.5493
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 386.9259
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.33283
INFO:                  SECOND_EPOCH__SD_ratio= 0.004
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 =     26.1800003051758 / [degC] Focuser temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Header: 67 keys total, 4 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= '2026-08-04T23:48:48.5850050' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-05T04:48:48.5850050' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61257.2005623262 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-05T04:48:58.4886754' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61257.2006769446 / 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      =     197.997370164287 / [deg] RA of telescope" status=0
Record 32: "DEC     =      46.000175472623 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     26.1777777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     309.295833333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.25772278120573 / 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  = 'CVn-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 12 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 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  =                20466 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20466 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     26.1800003051758 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     26.1800003051758 / [degC] Focuser temperature" status=0
Record 55: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 56: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 57: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 58: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 59: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 60: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 61: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 62: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 63: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 64: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 65: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 66: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 67: "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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/d_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits :)

Spent 0.682060 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-07-30.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/d_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit 9576 6388  16 bitpix
Avarage count on flat field image: 19899.553568
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits :)


No overscan detected - all values seem high! (left_median=13115.0, right_median=15628.5)
renamed 'mff_TTUQ2b1x1_2026-07-30.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     26.3400001525879 / [degC] Focuser temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Header: 67 keys total, 4 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= '2026-08-04T23:49:32.3194434' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-05T04:49:32.3194434' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =      61257.201068507 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-05T04:49:42.2193434' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61257.2011830905 / 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      =     197.997370217209 / [deg] RA of telescope" status=0
Record 32: "DEC     =     46.0001754815732 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     26.0594444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     309.350555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.26715516602659 / 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  = 'CVn-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 12 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 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  =                20466 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20466 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     26.3400001525879 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     26.3400001525879 / [degC] Focuser temperature" status=0
Record 55: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 56: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 57: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 58: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 59: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 60: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 61: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 62: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 63: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 64: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 65: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 66: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 67: "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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-07-30.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/d_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits :)

Spent 0.611129 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-07-30.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/d_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-07-30.fit 9576 6388  16 bitpix
Avarage count on flat field image: 19899.553568
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits :)


No overscan detected - all values seem high! (left_median=13115.0, right_median=15628.5)
renamed 'mff_TTUQ2b1x1_2026-07-30.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Previews of the CALIBRATED second-epoch images:


fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits



fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
  
SExtractor catalog cache: saved CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.cat to cache
SExtractor catalog cache: saved CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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: 2461257.70067807
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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits exists and is non-empty
Saving wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits to local_wcs_cache/
'wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'local_wcs_cache/wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits'
wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits exists and is non-empty
Saving wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits to local_wcs_cache/
'wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'local_wcs_cache/wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits'
wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits exists and is non-empty
Saving wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits to local_wcs_cache/
'wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits' -> 'local_wcs_cache/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits'
wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits exists and is non-empty
Saving wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits to local_wcs_cache/
'wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits' -> 'local_wcs_cache/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits'
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (1st reference image)
verification OK: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Image size: 941.4'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:00.572 +45:59:41.02 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_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits (1st new image)
verification OK: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Image size: 937.7'x624.1'  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: 13:11:59.199 +46:00:09.43 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:11:59.199 +46:00:09.43
Angular distance between the image centers 0.0088 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits (2nd new image)
verification OK: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Image size: 937.7'x624.1'  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: 13:11:55.469 +46:00:15.99 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:11:55.469 +46:00:15.99
Angular distance between the image centers 0.0177 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  13:11:59.199 +46:00:09.43
Second-epoch second image center 13:11:55.469 +46:00:15.99
Angular distance between the image centers 0.01095 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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits &> /tmp/tmp.Kx2ss8Hf42
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits &> /tmp/tmp.TxDlNfnGhz
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits &> /tmp/tmp.QYgvnfV4Iq
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits &> /tmp/tmp.TNcCGNqn2w
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Found non-empty wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat
The reference image (wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits) and catalog (wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat) found
'wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat' -> 'wcsmag.cat'
Read 5685 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.6849 deg, Dec +39.8612 to +51.3577 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 186.0168 to 210.6849 deg, Dec 39.8612 to 51.3577 deg
Loaded 4189 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): 2904 out of 3041 total matches.
Matched with Tycho-2 3041 out of 5685 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.813000
a=0.000000 b=1.000000 c=22.813000
From vast_summary.log: estimated ref. image limiting mag.:  -7.40
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.41

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.41

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 5685 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.6849 deg, Dec +39.8612 to +51.3577 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 186.0168 to 210.6849 deg, Dec 39.8612 to 51.3577 deg
Loaded 4189 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): 2904 out of 3041 total matches.
Matched with Tycho-2 3041 out of 5685 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -> calib.txt_param_ref_wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (aperture=6.1)
Read 5702 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.1897 to 210.6848 deg, Dec +39.8612 to +51.3577 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 186.1897 to 210.6848 deg, Dec 39.8612 to 51.3577 deg
Loaded 4166 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): 2907 out of 3042 total matches.
Matched with Tycho-2 3042 out of 5702 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -> calib.txt_param_ref_wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (aperture=6.1)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 2.1 pix  CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 2.3 pix  fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
 2.3 pix  fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Limiting magnitude estimates:
 15.4 mag.  CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 15.4 mag.  CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 14.8 mag.  fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
 14.8 mag.  fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
All-image limiting magnitude estimate:  14.8 (SNR )  11.9 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.Kx2ss8Hf42 (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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS-calibrated image found: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Checking if the catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS catalog name: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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=340, bad_region=1220, passed=5685
Got 5685 stars (including 4189 good ones) from the SExtractor catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
util/solve_plate_with_UCAC5 got 5685 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (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 0.010460 (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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4075 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4070 matched stars entering correct_measured_positions(), 4070 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4070 matched stars entering correct_measured_positions(), 4712 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4075 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4070 matched stars entering correct_measured_positions(), 4712 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4070 matched stars entering correct_measured_positions(), 4712 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4070 stars left (next iteration limit 4477)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits N_match=4070 sigma_overall_arcsec=0.370 sigma_q1_arcsec=0.342 sigma_q2_arcsec=0.513 sigma_q3_arcsec=0.339 sigma_q4_arcsec=0.377 n_q1=1377 n_q2=690 n_q3=1313 n_q4=690 worst_quadrant_to_overall_ratio=1.386
The image catalog is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -region wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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.TxDlNfnGhz (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/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS-calibrated image found: wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Checking if the catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS catalog name: wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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=330, bad_region=1223, passed=5702
Got 5702 stars (including 4210 good ones) from the SExtractor catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
util/solve_plate_with_UCAC5 got 5702 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (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 0.010460 (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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4092 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4085 matched stars entering correct_measured_positions(), 4085 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4085 matched stars entering correct_measured_positions(), 4722 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4092 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4085 matched stars entering correct_measured_positions(), 4722 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4085 matched stars entering correct_measured_positions(), 4722 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4085 stars left (next iteration limit 4493)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits N_match=4085 sigma_overall_arcsec=0.373 sigma_q1_arcsec=0.357 sigma_q2_arcsec=0.507 sigma_q3_arcsec=0.321 sigma_q4_arcsec=0.388 n_q1=1376 n_q2=690 n_q3=1314 n_q4=705 worst_quadrant_to_overall_ratio=1.359
The image catalog is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -region wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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.QYgvnfV4Iq (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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Checking if the catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS catalog name: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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=179, bad_region=793, passed=3839
Got 3839 stars (including 2887 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat 
util/solve_plate_with_UCAC5 got 3839 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.4 to 51.3)
Done reading UCAC5 zone files...
Matched 2822 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2820 matched stars entering correct_measured_positions(), 2820 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2820 matched stars entering correct_measured_positions(), 3175 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

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 651 to 708 (Dec 40.4 to 51.3)
Done reading UCAC5 zone files...
Matched 2822 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2820 matched stars entering correct_measured_positions(), 3175 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 2820 matched stars entering correct_measured_positions(), 3175 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 2820 stars left (next iteration limit 3102)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2820 robust_rms=6.688 arcsec worst_quadrant_rms=8.515 arcsec
SIP_REFIT: SIP order 3 trial: matched=2820 robust_rms=0.414 arcsec worst_quadrant_rms=0.525 arcsec
SIP_REFIT: SIP order 5 trial: matched=2820 robust_rms=0.327 arcsec worst_quadrant_rms=0.363 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2820 robust_rms_before=0.860 arcsec robust_rms_before_corrected=0.323 arcsec robust_rms_after=0.327 arcsec worst_quadrant_rms_before=0.351 worst_quadrant_rms_after=0.363
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.351 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits N_match=2820 sigma_overall_arcsec=0.331 sigma_q1_arcsec=0.322 sigma_q2_arcsec=0.305 sigma_q3_arcsec=0.369 sigma_q4_arcsec=0.320 n_q1=954 n_q2=526 n_q3=846 n_q4=494 worst_quadrant_to_overall_ratio=1.113
The image catalog is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits -region wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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.TNcCGNqn2w (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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Checking if the catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS catalog name: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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=194, bad_region=802, passed=3825
Got 3825 stars (including 2860 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat 
util/solve_plate_with_UCAC5 got 3825 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.4 to 51.3)
Done reading UCAC5 zone files...
Matched 2796 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2794 matched stars entering correct_measured_positions(), 2794 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2794 matched stars entering correct_measured_positions(), 3160 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 651 to 708 (Dec 40.4 to 51.3)
Done reading UCAC5 zone files...
Matched 2796 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2794 matched stars entering correct_measured_positions(), 3160 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 2794 matched stars entering correct_measured_positions(), 3160 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 2794 stars left (next iteration limit 3073)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2794 robust_rms=6.679 arcsec worst_quadrant_rms=9.184 arcsec
SIP_REFIT: SIP order 3 trial: matched=2794 robust_rms=0.457 arcsec worst_quadrant_rms=0.556 arcsec
SIP_REFIT: SIP order 5 trial: matched=2794 robust_rms=0.343 arcsec worst_quadrant_rms=0.367 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2794 robust_rms_before=0.861 arcsec robust_rms_before_corrected=0.338 arcsec robust_rms_after=0.343 arcsec worst_quadrant_rms_before=0.369 worst_quadrant_rms_after=0.367
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_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits N_match=2794 sigma_overall_arcsec=0.349 sigma_q1_arcsec=0.325 sigma_q2_arcsec=0.350 sigma_q3_arcsec=0.390 sigma_q4_arcsec=0.335 n_q1=936 n_q2=527 n_q3=851 n_q4=480 worst_quadrant_to_overall_ratio=1.118
The image catalog is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits -region wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits sigma_overall=0.370 worst_q_ratio=1.386
ref2=CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits sigma_overall=0.373 worst_q_ratio=1.359
new1=fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits sigma_overall=0.331 worst_q_ratio=1.113
new2=fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits sigma_overall=0.349 worst_q_ratio=1.118
reference average sigma_overall=0.3715 worst_q_ratio=1.3725
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255_astrometric_residuals.png (4070 matched stars from wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256_astrometric_residuals.png (4085 matched stars from wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156_astrometric_residuals.png (2820 matched stars from wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.30 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157_astrometric_residuals.png (2794 matched stars from wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits'
Saving fully-calibrated image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits'
Preparing the HTML report for the field CVn-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
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
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 03146_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 03146_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 3     2026 08 05.20118    2461257.70118    10.62    13:05:01.28 +45:30:32.1   5522 3480   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:05:01.29 +45:30:32.4 in the exclusion list exclusion_list.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 CVn-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
  
SExtractor catalog cache: saved CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.cat to cache
SExtractor catalog cache: saved CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Creating symlink local_wcs_cache/wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Creating symlink local_wcs_cache/exclusion_list.txt
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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits exists and is non-empty
wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits exists and is non-empty
wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits exists and is non-empty
wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (1st reference image)
verification OK: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Image size: 941.4'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:00.572 +45:59:41.02 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_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits (1st new image)
verification OK: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Image size: 937.7'x624.1'  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: 13:11:59.199 +46:00:09.43 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:11:59.199 +46:00:09.43
Angular distance between the image centers 0.0088 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits (2nd new image)
verification OK: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Image size: 937.7'x624.1'  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: 13:11:55.469 +46:00:15.99 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:11:55.469 +46:00:15.99
Angular distance between the image centers 0.0177 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  13:11:59.199 +46:00:09.43
Second-epoch second image center 13:11:55.469 +46:00:15.99
Angular distance between the image centers 0.01095 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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits &> /tmp/tmp.BpdLCTw6Cx
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits &> /tmp/tmp.GflnYbYKNI
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits &> /tmp/tmp.Fvp1iRvdzS
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits &> /tmp/tmp.CtY3izDBKO
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Found non-empty wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat
The reference image (wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits) and catalog (wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat) found
'wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat' -> 'wcsmag.cat'
Read 30928 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.7315 deg, Dec +39.8612 to +51.3805 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 186.0168 to 210.7315 deg, Dec 39.8612 to 51.3805 deg
Loaded 4203 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): 2755 out of 3050 total matches.
Matched with Tycho-2 3050 out of 30928 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.697400
a=0.000000 b=1.000000 c=22.697400
From vast_summary.log: estimated ref. image limiting mag.:  -7.11
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.59

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.59

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 30928 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.7315 deg, Dec +39.8612 to +51.3805 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 186.0168 to 210.7315 deg, Dec 39.8612 to 51.3805 deg
Loaded 4203 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): 2755 out of 3050 total matches.
Matched with Tycho-2 3050 out of 30928 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -> calib.txt_param_ref_wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (aperture=4.7)
Read 30863 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0184 to 210.7334 deg, Dec +39.8612 to +51.3741 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 186.0184 to 210.7334 deg, Dec 39.8612 to 51.3741 deg
Loaded 4202 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): 2769 out of 3053 total matches.
Matched with Tycho-2 3053 out of 30863 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -> calib.txt_param_ref_wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (aperture=4.7)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 15 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 2.0 pix  CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 2.2 pix  fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
 2.2 pix  fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Limiting magnitude estimates:
 15.6 mag.  CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 15.6 mag.  CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 14.8 mag.  fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
 14.9 mag.  fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
All-image limiting magnitude estimate:  14.8 (SNR )  14.3 (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.BpdLCTw6Cx (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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS-calibrated image found: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Checking if the catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS catalog name: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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=15, blended=1156, bad_region=5882, passed=30913
Got 30913 stars (including 24036 good ones) from the SExtractor catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
util/solve_plate_with_UCAC5 got 30913 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (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 0.010460 (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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4855 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 4845 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 26339 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4855 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 26339 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 26339 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4845 stars left (next iteration limit 5329)
Stop iterations.


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

SIP_REFIT: wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits is a symbolic link - not rewriting the WCS of whatever it points to, keeping the original solution
WCS_QUALITY_DIAG: file=CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits N_match=4845 sigma_overall_arcsec=0.375 sigma_q1_arcsec=0.360 sigma_q2_arcsec=0.505 sigma_q3_arcsec=0.330 sigma_q4_arcsec=0.371 n_q1=1669 n_q2=925 n_q3=1468 n_q4=783 worst_quadrant_to_overall_ratio=1.346
The image catalog is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -region wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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.GflnYbYKNI (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/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS-calibrated image found: wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Checking if the catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS catalog name: wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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=9, blended=1148, bad_region=5882, passed=30854
Got 30854 stars (including 23993 good ones) from the SExtractor catalog wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
util/solve_plate_with_UCAC5 got 30854 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (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 0.010460 (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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4852 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4844 matched stars entering correct_measured_positions(), 4844 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4844 matched stars entering correct_measured_positions(), 26276 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4852 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4844 matched stars entering correct_measured_positions(), 26276 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4844 matched stars entering correct_measured_positions(), 26276 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4844 stars left (next iteration limit 5328)
Stop iterations.


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

SIP_REFIT: wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits is a symbolic link - not rewriting the WCS of whatever it points to, keeping the original solution
WCS_QUALITY_DIAG: file=CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits N_match=4844 sigma_overall_arcsec=0.367 sigma_q1_arcsec=0.360 sigma_q2_arcsec=0.494 sigma_q3_arcsec=0.313 sigma_q4_arcsec=0.373 n_q1=1670 n_q2=923 n_q3=1471 n_q4=780 worst_quadrant_to_overall_ratio=1.346
The image catalog is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -region wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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.Fvp1iRvdzS (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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Checking if the catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
WCS catalog name: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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=12, blended=779, bad_region=2944, passed=20511
Got 20511 stars (including 16955 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat 
util/solve_plate_with_UCAC5 got 20511 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4855 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4847 matched stars entering correct_measured_positions(), 4847 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4847 matched stars entering correct_measured_positions(), 18286 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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4856 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4847 matched stars entering correct_measured_positions(), 18286 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4847 matched stars entering correct_measured_positions(), 18286 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4847 stars left (next iteration limit 5331)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits is a symbolic link - not rewriting the WCS of whatever it points to, keeping the original solution
WCS_QUALITY_DIAG: file=fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits N_match=4847 sigma_overall_arcsec=0.350 sigma_q1_arcsec=0.334 sigma_q2_arcsec=0.340 sigma_q3_arcsec=0.390 sigma_q4_arcsec=0.335 n_q1=1659 n_q2=877 n_q3=1518 n_q4=793 worst_quadrant_to_overall_ratio=1.114
The image catalog is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits -region wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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.CtY3izDBKO (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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Checking if the catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
WCS catalog name: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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=10, blended=713, bad_region=2977, passed=20677
Got 20677 stars (including 17166 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat 
util/solve_plate_with_UCAC5 got 20677 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.7'
Seting catalog search parameters based on the expected field of view 937.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013024 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010419 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4852 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 4845 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 18423 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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4853 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 18423 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 18423 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4845 stars left (next iteration limit 5329)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits is a symbolic link - not rewriting the WCS of whatever it points to, keeping the original solution
WCS_QUALITY_DIAG: file=fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits N_match=4845 sigma_overall_arcsec=0.374 sigma_q1_arcsec=0.352 sigma_q2_arcsec=0.375 sigma_q3_arcsec=0.403 sigma_q4_arcsec=0.369 n_q1=1662 n_q2=879 n_q3=1511 n_q4=793 worst_quadrant_to_overall_ratio=1.075
The image catalog is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits -region wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Saving fully-calibrated image wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.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_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/wcs_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits
Preparing the HTML report for the field CVn-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits at 13:00:29.78 +43:27:30.1:  14.18 +/- 0.06  detection
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits at 13:45:07.71 +48:35:11.4:  15.38 +/- 0.20  detection
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits at 13:17:46.59 +45:36:00.9:  14.42 +/- 0.08  detection
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits at 13:17:46.59 +45:36:00.9:  14.38 +/- 0.07  detection
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits at 13:45:07.71 +48:35:11.4:  15.40 +/- 0.20  detection
Forced photometry on wcs_CVn-01-Q2b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits at 13:00:29.78 +43:27:30.1:  14.16 +/- 0.06  detection
Forced photometry reference-image weighted average:  14.40 +/- 0.05
Forced photometry reference-image weighted average:  15.39 +/- 0.14
Forced photometry reference-image weighted average:  14.17 +/- 0.04
Forced photometry filter REJECTED candidate at 13:45:07.71 +48:35:11.4: ref_mag=15.39 +/- 0.14 new_mean_mag=14.6597 delta=0.73 (need > 0.90)
Forced photometry filter REJECTED candidate at 13:17:46.59 +45:36:00.9: ref_mag=14.40 +/- 0.05 new_mean_mag=14.3533 delta=0.04 (need > 0.90)
Forced photometry filter REJECTED candidate at 13:00:29.78 +43:27:30.1: ref_mag=14.17 +/- 0.04 new_mean_mag=14.2149 delta=-0.04 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
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Considering the candidate 51799_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51799_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    12.70    13:05:47.86 +45:18:09.3   5443 3607   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:05:47.85 +45:18:09.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51921_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51921_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.73    13:20:51.31 +41:44:06.4   3802 5778   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:20:51.27 +41:44:06.5 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51933_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51933_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.59    13:29:24.55 +46:21:38.8   2964 2946   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:29:24.54 +46:21:38.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51958_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51958_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.79    12:46:27.37 +47:22:15.6   7389 2237   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  12:46:27.36 +47:22:15.3 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51965_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51965_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.96    13:18:40.34 +47:08:28.7   4090 2507   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:18:40.37 +47:08:28.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51967_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51967_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.85    13:33:40.98 +46:47:42.4   2533 2660   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:33:40.93 +46:47:42.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 51973_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 51973_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    13.82    13:19:12.60 +45:05:13.8   4017 3748   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:19:12.61 +45:05:13.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52014_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52014_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    14.16    12:53:05.26 +47:39:31.6   6697 2118   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  12:53:05.24 +47:39:32.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52031_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52031_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    14.14    13:33:43.38 +46:47:28.4   2528 2662   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:33:43.37 +46:47:28.4 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52106_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52106_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 1     2026 08 05.20068    2461257.70068    14.21    13:00:29.74 +43:27:31.0   6063 4700   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Discovery image 2     2026 08 05.20118    2461257.70118    14.22    13:00:29.82 +43:27:29.1   6056 4702   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

  
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Considering the candidate 52112_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52112_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 2     2026 08 05.20118    2461257.70118    14.15    13:29:36.45 +47:09:11.1   2965 2466   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:29:36.49 +47:09:09.6 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 52187_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52187_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 1     2026 08 05.20068    2461257.70068    14.50    13:17:46.54 +45:36:02.2   4180 3438   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Discovery image 2     2026 08 05.20118    2461257.70118    14.26    13:17:46.63 +45:35:59.5   4173 3440   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

  
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Considering the candidate 52218_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 52218_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 1     2026 08 05.20068    2461257.70068    14.68    13:45:07.87 +48:35:10.8   1451 1480   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-48-48_20.00sec_-0.00C_LIGHT_0156.fits
Discovery image 2     2026 08 05.20118    2461257.70118    14.65    13:45:07.56 +48:35:12.1   1445 1481   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

  
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Considering the candidate 09471_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 09471_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 3     2026 08 05.20118    2461257.70118    12.62    13:24:22.76 +48:04:37.6   3520 1928   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:24:22.77 +48:04:37.7 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 18065_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157
The candidate 18065_fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157 did not pass the final checks
Discovery image 3     2026 08 05.20118    2461257.70118    10.65    13:05:01.29 +45:30:32.1   5522 3480   /data_ssd/NMW-TexasTech/workdir//img_2026-08-04_CI_CVn-01-Q2b1x1_235017_TTUQ2b1x1_459516_V7oqMOEV/fd_CVn-01-Q2b1x1_2026-08-04_23-49-32_20.00sec_-0.00C_LIGHT_0157.fits

**** FOUND  13:05:01.28 +45:30:32.5 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field CVn-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed CVn-01-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461257.70067807 -observatory V36
07:40:05.83 +20:21:23.8 Mercury (-0.2mag)
11:52:02.39 +00:25:54.7 Venus (-4.3mag)
05:40:27.88 +23:30:32.4 Mars (1.3mag)
08:40:12.87 +18:51:20.8 Jupiter (-1.8mag)
00:56:36.34 +03:17:26.0 Saturn (0.6mag)
04:11:22.19 +20:56:01.0 Uranus (5.8mag)
00:16:16.07 +00:14:23.0 Neptune (7.7mag)
20:28:25.90 -23:29:00.2 Pluto (14.4mag)
01:51:37.44 +15:32:54.5 Moon (-10.7mag)
-rw-r--r-- 1 apache apache 363 Aug  4 23:59 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461257.70067807:
08:40:08.06 +18:51:42.0 Io (6.0mag)
08:40:23.80 +18:50:34.5 Europa (6.3mag)
08:39:59.53 +18:52:19.9 Ganymede (5.6mag)
08:39:51.59 +18:52:53.0 Callisto (6.7mag)
08:37:49.99 +18:48:53.9 Himalia (15.7mag)
08:40:17.36 +18:51:02.3 Thebe (16.6mag)
08:37:19.95 +18:48:01.3 Elara (17.7mag)
08:44:18.16 +18:32:14.7 Pasiphae (17.9mag)
08:43:35.69 +19:00:58.2 Carme (19.0mag)
00:56:39.01 +03:17:49.3 Titan (8.4mag)
00:56:36.71 +03:17:33.3 Rhea (9.7mag)
00:56:37.02 +03:15:37.8 Iapetus (11.1mag)
00:56:25.81 +03:17:48.3 Hyperion (14.4mag)
00:56:02.70 +03:11:00.8 Phoebe (16.5mag)
-rw-r--r-- 1 apache apache 568 Aug  4 23:59 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461257.70067807:
18:51:53.34 -24:32:40.3 JWST
11:43:14.69 +52:41:26.3 Chandra
21:29:09.70 +49:02:39.6 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug  4 23:59 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461257.70067807 -observatory V36
03:10:11.72 +17:07:06.0 17.7mag P/1996 R2 (Lagerkvist)
18:02:45.39 -34:38:39.7 14.0mag P/2010 H2 (Vales)
06:50:57.36 -68:47:30.2 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:09:00.20 +32:55:49.1 17.7mag C/2017 K2 (PANSTARRS)
03:34:33.59 +36:13:18.4 16.6mag P/2021 N1 (ZTF)
22:41:06.44 +31:37:15.5 17.3mag C/2022 E2 (ATLAS)
06:40:26.79 +26:35:32.8 16.8mag C/2022 N2 (PANSTARRS)
10:18:46.44 +28:36:21.3 17.0mag C/2022 QE78 (ATLAS)
09:26:49.98 +05:17:29.4 17.9mag C/2022 R6 (PANSTARRS)
15:12:00.52 -12:10:10.2 17.9mag P/2023 B1 (PANSTARRS)
21:14:47.88 +66:20:05.2 17.9mag C/2023 H5 (Lemmon)
15:51:00.83 -12:39:09.7 14.3mag C/2023 R1 (PANSTARRS)
08:04:40.15 +31:12:36.0 15.2mag C/2024 E1 (Wierzchos)
15:07:29.40 +15:37:06.1 17.7mag C/2024 G6 (ATLAS)
19:06:59.57 +42:53:26.7 13.7mag C/2024 J3 (ATLAS)
21:15:09.11 +49:00:19.9 17.6mag C/2024 R4 (PANSTARRS)
05:12:41.06 -13:00:32.7 15.5mag C/2024 T5 (ATLAS)
06:54:13.66 +24:41:10.8 17.9mag C/2025 J1 (Borisov)
07:29:29.09 -15:43:49.8 17.6mag C/2025 R3 (PANSTARRS)
10:28:43.51 +21:05:38.2 17.3mag C/2025 V2 (Rankin)
12:56:21.02 +02:32:52.9 17.0mag C/2025 Y1 (ATLAS)
16:04:12.09 +78:06:30.7 16.9mag C/2026 A2 (Bok)
03:06:16.24 +46:07:19.1 17.1mag C/2026 B2 (Sun-Gao)
11:44:19.10 +08:13:08.3 17.2mag A/2026 E1
21:54:56.21 -26:00:51.3 6.9mag 10P/Tempel
11:27:09.86 -03:12:53.9 16.2mag 29P/Schwassmann-Wachmann
04:35:27.92 +32:09:59.0 18.0mag 47P/Ashbrook-Jackson
11:01:31.05 +05:37:54.0 17.2mag 63P/Wild
00:54:18.38 -05:20:43.0 15.5mag 65P/Gunn
05:28:39.31 +20:44:26.5 13.7mag 78P/Gehrels
20:40:43.22 -23:10:16.1 17.8mag 84P/Giclas
02:57:38.55 +13:27:27.5 16.7mag 88P/Howell
07:48:06.03 +28:03:41.3 16.1mag 93P/Lovas
03:57:53.84 +15:42:04.3 17.7mag 112P/Urata-Niijima
05:46:28.27 +30:36:28.8 16.3mag 114P/Wiseman-Skiff
09:11:18.47 +27:09:15.3 15.0mag 123P/West-Hartley
11:37:42.38 -09:06:09.2 17.1mag 124P/Mrkos
05:32:04.07 +21:11:13.4 16.1mag 128P/Shoemaker-Holt
06:23:18.59 +19:02:31.7 17.9mag 131P/Mueller
00:03:49.26 +03:25:37.8 17.6mag 139P/Vaisala-Oterma
03:21:47.43 -19:47:17.8 14.1mag 161P/Hartley-IRAS
07:05:39.83 +37:37:19.2 15.8mag 162P/SidingSpring
16:06:55.73 +38:33:47.4 12.4mag 169P/NEAT
02:37:21.67 +09:26:59.4 17.6mag 220P/McNaught
16:40:06.89 -09:52:17.8 17.6mag 235P/LINEAR
20:24:27.97 -52:50:22.3 17.8mag 259P/Garradd
03:13:17.99 +23:52:44.3 15.4mag 260P/McNaught
06:56:13.77 +37:46:04.5 17.3mag 295P/LINEAR
15:09:33.22 +03:28:13.9 17.7mag 391P/Kowalski
08:58:07.52 +18:31:24.8 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.5K Aug  4 23:59 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
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 +22:02:03.80  AT2026lxf  2026-05-8.34 13.72
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
14:26:40.22 -24:48:37.50  AT2026lig  2026-05-4.27 14.63
13:17:51.04 +30:25:13.50  SN2026kcp  2026-05-4.46 16.43
11:27:55.57 -13:38:56.90  SN2026kza  2026-05-1.08 15.59
22:28:27.10 +30:17:54.30  SN 2026fov  2026-04-29.6 14.36
-rw-r--r-- 1 apache apache 5.7K Aug  4 23:59 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:42:51.20 +41:16:59.4  PNV J00425120+4116594  2022-10-26.135  19.3mag
12:24:25.10 +28:47:12.0  TCP J12242510+2847120  2026-05-31.6015  14.8mag
00:56:07.13 +43:01:40.6  TCP J00560713+4301406  2026-06-01.4135  12.2mag
00:42:41.64 +41:15:16.2  PNV J00424164+4115162  2026-06-02.029  17.4mag
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
-rw-r--r-- 1 apache apache 189K Aug  4 23:59 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
15:10:37.347 +08:41:02.43  AT 2026vdv  2026-07-20.39 17.63
00:48:47.035 -17:46:37.99  AT 2026vdu  2026-07-19.83 19.69
15:08:14.743 -20:24:40.47  AT 2026vdt  2026-07-15.37 19.81
12:37:49.799 -40:14:52.54  AT 2026vds  2026-07-15.40 18.95
17:22:30.654 +19:42:09.07  SN 2026vdr  2026-07-17.91 19.5
20:41:44.088 -01:12:34.78  AT 2026vdq  2026-07-20.01 18.35
14:49:19.169 -14:49:17.78  AT 2026vdp  2026-07-15.38 20.17
00:42:55.360 +41:17:27.00  AT 2026vdo  2026-07-20.08 17.7
18:01:57.813 +32:54:02.20  AT 2026vdn  2026-07-15.24 20.8647
17:45:13.282 +43:23:54.28  AT 2026vdm  2026-07-12.34 20.6398
21:52:40.898 +29:03:58.38  AT 2026vdl  2026-07-12.05 19.09
16:53:07.017 +53:15:53.01  AT 2026vdk  2026-07-19.80 19.75
17:29:48.362 +40:12:07.56  AT 2026vdj  2026-07-19.85 19.22
17:09:35.647 +52:57:47.42  AT 2026vdi  2026-07-10.75 19.25
18:09:45.403 +52:52:08.44  AT 2026vdh  2026-07-19.86 18.64
19:57:17.864 -00:48:07.49  AT 2026vdg  2026-07-19.83 19.36
10:58:53.375 +42:00:26.07  AT 2026vdf  2026-07-19.17 19.6018
13:17:26.777 +11:43:36.24  AT 2026vde  2026-03-17.44 20.0006
13:41:39.541 +44:54:17.04  AT 2026vdd  2026-07-15.21 20.5478
13:55:22.647 -27:41:06.85  AT 2026vdc  2026-07-15.37 17.42
-rw-r--r-- 1 apache apache 87K Aug  4 23:59 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Tue Aug  4 23:58:49 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 29s (0.48 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 3s (0.05 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 47s (0.78 min)
TIMING SExtractor: 13 seconds
TIMING matching_and_photometry: 2 seconds
TIMING lightcurve_write: 2 seconds
TIMING select_aperture: 4 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 23s (0.38 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 17s (0.28 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: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 45s (0.75 min)
FIELD_CVn-01-Q2b1x1: 108s (1.80 min)
=======================================
TOTAL_RUNTIME: 110s (1.83 min)
Finished: Wed Aug  5 00:00:39 CDT 2026