FITS images used in this processing run:

Field CVn-02-Q2b1x1 reference image: CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Field CVn-02-Q2b1x1 reference image: CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Field CVn-02-Q2b1x1 second-epoch image: CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Field CVn-02-Q2b1x1 second-epoch image: CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461178.74973063 18.05.2026 05:59:26.726   /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
First image: 2461178.74973063 18.05.2026 05:59:26.726   /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Last  image: 2461347.94117414 03.11.2026 10:35:07.446   /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.06
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 2 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  4629
Objects passed selection criteria:  4609
Measurements per detected object (mean, median, min, max):    2.7    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.8    2.0    2    4
Average stars detected per image: 3294.25
Average stars matched: 3044.5 (92.4186 %)
Memory usage VmPeak:   231056 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.20(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Nov  3 04:40:08 CST 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: 2461178.74973063 18.05.2026 05:59:26.726   /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
First image: 2461178.74973063 18.05.2026 05:59:26.726   /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Last  image: 2461347.94117414 03.11.2026 10:35:07.446   /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 2
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -6.80
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: 7 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):  22425
Objects passed selection criteria:  22350
Measurements per detected object (mean, median, min, max):    2.8    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.8    2.0    2    4
Average stars detected per image: 16538.2
Average stars matched: 15049.8 (90.9997 %)
Memory usage VmPeak:   245496 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Oct 15 15:05:03 CDT 2026
VaST build number  1.0rc89-241-g3eca6a38
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-15)
GNU bash, version 5.3.20(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Nov  3 04:40:45 CST 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
CVn-02-Q2b1x1
#######################################
########### Starting CVn-02-Q2b1x1 ###########
Processing CVn-02-Q2b1x1
server tau has sufficient free disk space available: 854175 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 854175 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.png' -> 'transient_report/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits_preview.png'

CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits


renamed 'CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.png' -> 'transient_report/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits_preview.png'

CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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= 349.3568
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 399.7563
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1843.5748
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 501.8601
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1835.2379
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 503.8756
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 5.27705
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 =     9.71000003814697 / [degC] Focuser temperature
AMBTEMP =                  9.6 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-11-03T04:34:07.8342636' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-11-03T10:34:07.8342636' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61347.4403684488 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-11-03T10:34:17.7368083' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61347.4404830555 / 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      =     196.362698645759 / [deg] RA of telescope" status=0
Record 32: "DEC     =     37.9999456992719 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9169444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     54.1413888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =      3.8306468818438 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / 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-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 05 27'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+38 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  =                20653 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20653 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.71000003814697 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.71000003814697 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  6.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 78.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               899.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.6 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                170.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            18.401472 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            14.401152 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/d_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits :)

Spent 0.535566 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/d_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     9.67000007629395 / [degC] Focuser temperature
AMBTEMP =                  9.6 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-11-03T04:35:07.4464951' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-11-03T10:35:07.4464951' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61347.4410584029 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-11-03T10:35:17.3469150' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61347.4411729863 / 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      =     196.362698599662 / [deg] RA of telescope" status=0
Record 32: "DEC     =     37.9999457583279 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.0861111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     54.2480555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.78991817358667 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / 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-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 05 27'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+38 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  =                20653 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20653 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     9.67000007629395 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     9.67000007629395 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  6.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 78.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               899.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                  9.6 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                170.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            18.401472 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            14.401152 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/d_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits :)

Spent 0.520258 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/d_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Previews of the CALIBRATED second-epoch images:


fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits



fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
  
SExtractor catalog cache: saved CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.cat to cache
SExtractor catalog cache: saved CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461347.94048419
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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits exists and is non-empty
wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits exists and is non-empty
wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits exists and is non-empty
wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (1st reference image)
verification OK: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Image size: 937.2'x624.0'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 13:05:27.532 +38:00:11.66 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits (1st new image)
verification OK: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Image size: 941.3'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 13:05:45.010 +38:04:49.59 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:05:27.532 +38:00:11.66
Second-epoch image center 13:05:45.010 +38:04:49.59
Angular distance between the image centers 0.0962 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits (2nd new image)
verification OK: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Image size: 941.1'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 13:05:42.588 +38:04:08.21 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:05:27.532 +38:00:11.66
Second-epoch image center 13:05:42.588 +38:04:08.21
Angular distance between the image centers 0.0822 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  13:05:45.010 +38:04:49.59
Second-epoch second image center 13:05:42.588 +38:04:08.21
Angular distance between the image centers 0.01397 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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits &> /tmp/tmp.WBTUEkFPtW
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits &> /tmp/tmp.fbIu7nKbki
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits &> /tmp/tmp.M524LSuKTV
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits &> /tmp/tmp.Auc5h11VXt
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat 
Found non-empty wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat
The reference image (wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits) and catalog (wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat) found
'wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat' -> 'wcsmag.cat'
Read 5327 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7883 to 206.9331 deg, Dec +32.4372 to +43.2598 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 185.7883 to 206.9331 deg, Dec 32.4372 to 43.2598 deg
Loaded 4174 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): 3152 out of 3224 total matches.
Matched with Tycho-2 3224 out of 5327 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.558150
a=0.000000 b=1.000000 c=22.558150
From vast_summary.log: estimated ref. image limiting mag.:  -7.06
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.50

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.50

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 5327 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7883 to 206.9331 deg, Dec +32.4372 to +43.2598 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 185.7883 to 206.9331 deg, Dec 32.4372 to 43.2598 deg
Loaded 4174 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): 3152 out of 3224 total matches.
Matched with Tycho-2 3224 out of 5327 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Forced-photometry filter: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits -> calib.txt_param_ref_wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (aperture=6.3)
Read 5334 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7738 to 206.9331 deg, Dec +32.4372 to +43.2371 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 185.7738 to 206.9331 deg, Dec 32.4372 to 43.2371 deg
Loaded 4175 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): 3147 out of 3225 total matches.
Matched with Tycho-2 3225 out of 5334 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Forced-photometry filter: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits -> calib.txt_param_ref_wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits (aperture=6.3)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.3 pix  CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
 2.3 pix  CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
 2.5 pix  fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
 2.5 pix  fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Limiting magnitude estimates:
 15.5 mag.  CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
 15.5 mag.  CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
 14.5 mag.  fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
 14.6 mag.  fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
All-image limiting magnitude estimate:  14.5 (SNR )  11.6 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.WBTUEkFPtW (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits' -> 'wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS_IMAGE_NAME=wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS-calibrated image found: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Checking if the catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits alredy exist and is non-empty...
Catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS catalog name: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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=282, bad_region=1231, passed=5327
Got 5327 stars (including 3873 good ones) from the SExtractor catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat 
util/solve_plate_with_UCAC5 got 5327 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 3754 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3746 matched stars entering correct_measured_positions(), 3746 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3746 matched stars entering correct_measured_positions(), 4334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25" 

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 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 3754 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3746 matched stars entering correct_measured_positions(), 4334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 3746 matched stars entering correct_measured_positions(), 4334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Excluding outliers - 3746 stars left (next iteration limit 4120)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits N_match=3746 sigma_overall_arcsec=0.284 sigma_q1_arcsec=0.252 sigma_q2_arcsec=0.296 sigma_q3_arcsec=0.297 sigma_q4_arcsec=0.310 n_q1=1190 n_q2=731 n_q3=1180 n_q4=645 worst_quadrant_to_overall_ratio=1.091
WCS_HEADER_DIAG: file=CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits selection=current_pairs N_selected=3746 N_valid=3746 bias_ra_arcsec=-0.017 bias_dec_arcsec=-0.008 median_sep_arcsec=0.252 p95_sep_arcsec=0.747 n_q1=1190 n_q2=731 n_q3=1180 n_q4=645 occupied_cells_4x4=16/16
The image catalog is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits -region wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.fbIu7nKbki (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits' -> 'wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS_IMAGE_NAME=wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS-calibrated image found: wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Checking if the catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits alredy exist and is non-empty...
Catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS catalog name: wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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=279, bad_region=1242, passed=5334
Got 5334 stars (including 3860 good ones) from the SExtractor catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat 
util/solve_plate_with_UCAC5 got 5334 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 612 to 668 (Dec 32.4 to 43.2)
Done reading UCAC5 zone files...
Matched 3745 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3738 matched stars entering correct_measured_positions(), 3738 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3738 matched stars entering correct_measured_positions(), 4344 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 612 to 668 (Dec 32.4 to 43.2)
Done reading UCAC5 zone files...
Matched 3745 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3738 matched stars entering correct_measured_positions(), 4344 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Accuracy estimation diagnostic: 3738 matched stars entering correct_measured_positions(), 4344 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 3738 stars left (next iteration limit 4111)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits N_match=3738 sigma_overall_arcsec=0.308 sigma_q1_arcsec=0.289 sigma_q2_arcsec=0.316 sigma_q3_arcsec=0.326 sigma_q4_arcsec=0.301 n_q1=1181 n_q2=731 n_q3=1179 n_q4=647 worst_quadrant_to_overall_ratio=1.060
WCS_HEADER_DIAG: file=CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits selection=current_pairs N_selected=3738 N_valid=3738 bias_ra_arcsec=-0.019 bias_dec_arcsec=0.008 median_sep_arcsec=0.257 p95_sep_arcsec=0.759 n_q1=1181 n_q2=731 n_q3=1179 n_q4=647 occupied_cells_4x4=16/16
The image catalog is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits -region wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.M524LSuKTV (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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS_IMAGE_NAME=wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS-calibrated image found: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Checking if the catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS catalog name: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.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=167, bad_region=511, passed=3022
Got 3022 stars (including 2368 good ones) from the SExtractor catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat 
util/solve_plate_with_UCAC5 got 3022 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.3'
Seting catalog search parameters based on the expected field of view 941.3 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013074 (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 0.010459 (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 611 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 2313 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2310 matched stars entering correct_measured_positions(), 2310 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2310 matched stars entering correct_measured_positions(), 2583 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 

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 611 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 2314 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2311 matched stars entering correct_measured_positions(), 2583 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Accuracy estimation diagnostic: 2311 matched stars entering correct_measured_positions(), 2583 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Excluding outliers - 2311 stars left (next iteration limit 2541)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2311 robust_rms=6.821 arcsec worst_region_rms=11.215 arcsec outer_annulus_rms=11.215 arcsec
SIP_REFIT: SIP order 3 trial: matched=2311 robust_rms=0.743 arcsec worst_region_rms=1.154 arcsec outer_annulus_rms=0.654 arcsec
SIP_REFIT: SIP order 5 trial: matched=2311 robust_rms=0.483 arcsec worst_region_rms=0.632 arcsec outer_annulus_rms=0.530 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2311 robust_rms_before=1.887 arcsec robust_rms_before_corrected=0.444 arcsec robust_rms_after=0.483 arcsec worst_region_rms_before=0.553 worst_region_rms_after=0.632 outer_annulus_rms_before=1.729 outer_annulus_rms_after=0.530
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.553 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits worst_region_rms_kept=0.553 arcsec robust_rms_kept=0.444 arcsec matched=2311
WCS_QUALITY_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits N_match=2311 sigma_overall_arcsec=0.449 sigma_q1_arcsec=0.461 sigma_q2_arcsec=0.498 sigma_q3_arcsec=0.416 sigma_q4_arcsec=0.476 n_q1=765 n_q2=369 n_q3=745 n_q4=432 worst_quadrant_to_overall_ratio=1.110
WCS_HEADER_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits selection=current_pairs N_selected=2311 N_valid=2311 bias_ra_arcsec=0.541 bias_dec_arcsec=0.496 median_sep_arcsec=1.545 p95_sep_arcsec=3.561 n_q1=765 n_q2=369 n_q3=745 n_q4=432 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits -region wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.Auc5h11VXt (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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS_IMAGE_NAME=wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS-calibrated image found: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Checking if the catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS catalog name: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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=183, bad_region=525, passed=3057
Got 3057 stars (including 2387 good ones) from the SExtractor catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat 
util/solve_plate_with_UCAC5 got 3057 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 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 611 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 2334 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2331 matched stars entering correct_measured_positions(), 2331 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2331 matched stars entering correct_measured_positions(), 2610 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 

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 611 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 2335 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2332 matched stars entering correct_measured_positions(), 2610 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 2332 matched stars entering correct_measured_positions(), 2610 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 2332 stars left (next iteration limit 2564)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2332 robust_rms=6.966 arcsec worst_region_rms=11.132 arcsec outer_annulus_rms=11.132 arcsec
SIP_REFIT: SIP order 3 trial: matched=2332 robust_rms=0.595 arcsec worst_region_rms=0.713 arcsec outer_annulus_rms=0.612 arcsec
SIP_REFIT: SIP order 5 trial: matched=2332 robust_rms=0.496 arcsec worst_region_rms=0.633 arcsec outer_annulus_rms=0.586 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2332 robust_rms_before=1.725 arcsec robust_rms_before_corrected=0.423 arcsec robust_rms_after=0.496 arcsec worst_region_rms_before=0.535 worst_region_rms_after=0.633 outer_annulus_rms_before=1.417 outer_annulus_rms_after=0.586
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.535 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits worst_region_rms_kept=0.535 arcsec robust_rms_kept=0.423 arcsec matched=2332
WCS_QUALITY_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits N_match=2332 sigma_overall_arcsec=0.424 sigma_q1_arcsec=0.432 sigma_q2_arcsec=0.491 sigma_q3_arcsec=0.397 sigma_q4_arcsec=0.478 n_q1=764 n_q2=375 n_q3=751 n_q4=442 worst_quadrant_to_overall_ratio=1.159
WCS_HEADER_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits selection=current_pairs N_selected=2332 N_valid=2332 bias_ra_arcsec=0.569 bias_dec_arcsec=0.478 median_sep_arcsec=1.468 p95_sep_arcsec=3.347 n_q1=764 n_q2=375 n_q3=751 n_q4=442 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits -region wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits to local_wcs_cache/
'wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits' -> 'local_wcs_cache/wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits'
Saving the final (post-refit) wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits to local_wcs_cache/
'wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits' -> 'local_wcs_cache/wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits'
Saving the final (post-refit) wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits to local_wcs_cache/
'wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits' -> 'local_wcs_cache/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits'
Saving the final (post-refit) wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits to local_wcs_cache/
'wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits' -> 'local_wcs_cache/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits sigma_overall=0.284 worst_q_ratio=1.091
ref2=CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits sigma_overall=0.308 worst_q_ratio=1.060
new1=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits sigma_overall=0.449 worst_q_ratio=1.110
new2=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits sigma_overall=0.424 worst_q_ratio=1.159
reference average sigma_overall=0.296 worst_q_ratio=1.0755
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576_astrometric_residuals.png (3746 matched stars from wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.26 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577_astrometric_residuals.png (3738 matched stars from wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.27 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532_astrometric_residuals.png (2311 matched stars from wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.40 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533_astrometric_residuals.png (2332 matched stars from wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.38 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits'
Saving fully-calibrated image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits'
Preparing the HTML report for the field CVn-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field CVn-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
  
SExtractor catalog cache: saved CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.cat to cache
SExtractor catalog cache: saved CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Creating symlink local_wcs_cache/wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits exists and is non-empty
wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits exists and is non-empty
wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits exists and is non-empty
wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (1st reference image)
verification OK: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Image size: 937.2'x624.0'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 13:05:27.532 +38:00:11.66 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits (1st new image)
verification OK: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Image size: 941.3'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 13:05:45.010 +38:04:49.59 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:05:27.532 +38:00:11.66
Second-epoch image center 13:05:45.010 +38:04:49.59
Angular distance between the image centers 0.0962 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits (2nd new image)
verification OK: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Image size: 941.1'x624.5'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 13:05:42.588 +38:04:08.21 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:05:27.532 +38:00:11.66
Second-epoch image center 13:05:42.588 +38:04:08.21
Angular distance between the image centers 0.0822 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  13:05:45.010 +38:04:49.59
Second-epoch second image center 13:05:42.588 +38:04:08.21
Angular distance between the image centers 0.01397 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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits &> /tmp/tmp.wOhI0oQSHK
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits &> /tmp/tmp.3QRRinTDTe
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits &> /tmp/tmp.t3rkJyBes0
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits &> /tmp/tmp.fU5PBQusd9
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat 
Found non-empty wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits and wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat
The reference image (wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits) and catalog (wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat) found
'wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat' -> 'wcsmag.cat'
Read 24753 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7834 to 207.0346 deg, Dec +32.4158 to +43.2598 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 185.7834 to 207.0346 deg, Dec 32.4158 to 43.2598 deg
Loaded 4212 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): 3071 out of 3252 total matches.
Matched with Tycho-2 3252 out of 24753 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.449700
a=0.000000 b=1.000000 c=22.449700
From vast_summary.log: estimated ref. image limiting mag.:  -6.80
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.65

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.65

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 24753 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7834 to 207.0346 deg, Dec +32.4158 to +43.2598 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 185.7834 to 207.0346 deg, Dec 32.4158 to 43.2598 deg
Loaded 4212 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): 3071 out of 3252 total matches.
Matched with Tycho-2 3252 out of 24753 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Forced-photometry filter: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits -> calib.txt_param_ref_wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (aperture=5.0)
Read 25058 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 185.7738 to 206.9742 deg, Dec +32.4156 to +43.2593 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 185.7738 to 206.9742 deg, Dec 32.4156 to 43.2593 deg
Loaded 4197 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): 3077 out of 3256 total matches.
Matched with Tycho-2 3256 out of 25058 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Forced-photometry filter: calibrated wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits -> calib.txt_param_ref_wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits (aperture=5.0)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 2 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
 2.2 pix  CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
 2.4 pix  fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
 2.4 pix  fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Limiting magnitude estimates:
 15.7 mag.  CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
 15.7 mag.  CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
 14.7 mag.  fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
 14.7 mag.  fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
All-image limiting magnitude estimate:  14.7 (SNR )  13.9 (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.wOhI0oQSHK (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits' -> 'wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS_IMAGE_NAME=wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS-calibrated image found: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
Checking if the catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits alredy exist and is non-empty...
Catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits
WCS catalog name: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.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=7, blended=952, bad_region=4201, passed=24746
Got 24746 stars (including 19829 good ones) from the SExtractor catalog wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat 
util/solve_plate_with_UCAC5 got 24746 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 4804 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4797 matched stars entering correct_measured_positions(), 4797 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4797 matched stars entering correct_measured_positions(), 21541 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 4804 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 21541 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 21541 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 4796 stars left (next iteration limit 5276)
Stop iterations.


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

SIP_REFIT: wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits N_match=4796 sigma_overall_arcsec=0.303 sigma_q1_arcsec=0.271 sigma_q2_arcsec=0.311 sigma_q3_arcsec=0.310 sigma_q4_arcsec=0.330 n_q1=1548 n_q2=914 n_q3=1522 n_q4=812 worst_quadrant_to_overall_ratio=1.090
WCS_HEADER_DIAG: file=CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits selection=current_pairs N_selected=4796 N_valid=4796 bias_ra_arcsec=-0.027 bias_dec_arcsec=-0.007 median_sep_arcsec=0.263 p95_sep_arcsec=0.786 n_q1=1548 n_q2=914 n_q3=1522 n_q4=812 occupied_cells_4x4=16/16
The image catalog is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits -region wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-02-Q2b1x1_2026-05-18_00-59-26_20.00sec_4.90C_LIGHT_1576.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.3QRRinTDTe (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits' -> 'wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS_IMAGE_NAME=wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS-calibrated image found: wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
Checking if the catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits alredy exist and is non-empty...
Catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat corresponding to the image wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits
WCS catalog name: wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.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=7, blended=935, bad_region=4205, passed=25051
Got 25051 stars (including 20114 good ones) from the SExtractor catalog wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat 
util/solve_plate_with_UCAC5 got 25051 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.2'
Seting catalog search parameters based on the expected field of view 937.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013017 (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 0.010413 (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 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 4804 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 4796 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 21832 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 

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 612 to 668 (Dec 32.4 to 43.3)
Done reading UCAC5 zone files...
Matched 4804 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 21832 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4796 matched stars entering correct_measured_positions(), 21832 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4796 stars left (next iteration limit 5275)
Stop iterations.


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

SIP_REFIT: wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits N_match=4796 sigma_overall_arcsec=0.325 sigma_q1_arcsec=0.316 sigma_q2_arcsec=0.313 sigma_q3_arcsec=0.340 sigma_q4_arcsec=0.318 n_q1=1555 n_q2=920 n_q3=1511 n_q4=810 worst_quadrant_to_overall_ratio=1.045
WCS_HEADER_DIAG: file=CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits selection=current_pairs N_selected=4796 N_valid=4796 bias_ra_arcsec=-0.029 bias_dec_arcsec=0.012 median_sep_arcsec=0.268 p95_sep_arcsec=0.782 n_q1=1555 n_q2=920 n_q3=1511 n_q4=810 occupied_cells_4x4=16/16
The image catalog is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits -region wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-02-Q2b1x1_2026-05-18_01-00-14_20.00sec_5.00C_LIGHT_1577.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.t3rkJyBes0 (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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS_IMAGE_NAME=wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS-calibrated image found: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Checking if the catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
WCS catalog name: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=401, bad_region=1976, passed=14496
Got 14496 stars (including 12197 good ones) from the SExtractor catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat 
util/solve_plate_with_UCAC5 got 14496 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.3'
Seting catalog search parameters based on the expected field of view 941.3 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013074 (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 0.010459 (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 611 to 668 (Dec 32.3 to 43.4)
Done reading UCAC5 zone files...
Matched 4755 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4741 matched stars entering correct_measured_positions(), 4742 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4741 matched stars entering correct_measured_positions(), 13000 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 

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 611 to 668 (Dec 32.3 to 43.4)
Done reading UCAC5 zone files...
Matched 4755 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4741 matched stars entering correct_measured_positions(), 13000 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 4741 matched stars entering correct_measured_positions(), 13000 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Excluding outliers - 4741 stars left (next iteration limit 5215)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4741 robust_rms=6.624 arcsec worst_region_rms=11.879 arcsec outer_annulus_rms=11.879 arcsec
SIP_REFIT: SIP order 3 trial: matched=4741 robust_rms=0.762 arcsec worst_region_rms=1.223 arcsec outer_annulus_rms=0.712 arcsec
SIP_REFIT: SIP order 5 trial: matched=4741 robust_rms=0.544 arcsec worst_region_rms=0.730 arcsec outer_annulus_rms=0.599 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4741 robust_rms_before=1.930 arcsec robust_rms_before_corrected=0.472 arcsec robust_rms_after=0.544 arcsec worst_region_rms_before=0.584 worst_region_rms_after=0.730 outer_annulus_rms_before=1.711 outer_annulus_rms_after=0.599
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.584 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits worst_region_rms_kept=0.584 arcsec robust_rms_kept=0.472 arcsec matched=4741
WCS_QUALITY_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits N_match=4741 sigma_overall_arcsec=0.478 sigma_q1_arcsec=0.498 sigma_q2_arcsec=0.543 sigma_q3_arcsec=0.435 sigma_q4_arcsec=0.484 n_q1=1515 n_q2=748 n_q3=1637 n_q4=841 worst_quadrant_to_overall_ratio=1.136
WCS_HEADER_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits selection=current_pairs N_selected=4741 N_valid=4741 bias_ra_arcsec=0.623 bias_dec_arcsec=0.481 median_sep_arcsec=1.601 p95_sep_arcsec=3.655 n_q1=1515 n_q2=748 n_q3=1637 n_q4=841 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits -region wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.fU5PBQusd9 (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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS_IMAGE_NAME=wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS-calibrated image found: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Checking if the catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat corresponding to the image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
WCS catalog name: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=1, blended=475, bad_region=1998, passed=14686
Got 14686 stars (including 12303 good ones) from the SExtractor catalog wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat 
util/solve_plate_with_UCAC5 got 14686 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 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 611 to 668 (Dec 32.3 to 43.4)
Done reading UCAC5 zone files...
Matched 4761 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4749 matched stars entering correct_measured_positions(), 4750 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4749 matched stars entering correct_measured_positions(), 13164 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 

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 611 to 668 (Dec 32.3 to 43.4)
Done reading UCAC5 zone files...
Matched 4760 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4749 matched stars entering correct_measured_positions(), 13164 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 4749 matched stars entering correct_measured_positions(), 13164 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 4749 stars left (next iteration limit 5223)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4749 robust_rms=6.647 arcsec worst_region_rms=11.955 arcsec outer_annulus_rms=11.955 arcsec
SIP_REFIT: SIP order 3 trial: matched=4749 robust_rms=0.652 arcsec worst_region_rms=0.829 arcsec outer_annulus_rms=0.689 arcsec
SIP_REFIT: SIP order 5 trial: matched=4749 robust_rms=0.551 arcsec worst_region_rms=0.711 arcsec outer_annulus_rms=0.647 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4749 robust_rms_before=1.787 arcsec robust_rms_before_corrected=0.476 arcsec robust_rms_after=0.551 arcsec worst_region_rms_before=0.617 worst_region_rms_after=0.711 outer_annulus_rms_before=1.512 outer_annulus_rms_after=0.647
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.617 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits worst_region_rms_kept=0.617 arcsec robust_rms_kept=0.476 arcsec matched=4749
WCS_QUALITY_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits N_match=4749 sigma_overall_arcsec=0.469 sigma_q1_arcsec=0.486 sigma_q2_arcsec=0.552 sigma_q3_arcsec=0.421 sigma_q4_arcsec=0.483 n_q1=1506 n_q2=753 n_q3=1640 n_q4=850 worst_quadrant_to_overall_ratio=1.177
WCS_HEADER_DIAG: file=fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits selection=current_pairs N_selected=4749 N_valid=4749 bias_ra_arcsec=0.641 bias_dec_arcsec=0.441 median_sep_arcsec=1.536 p95_sep_arcsec=3.456 n_q1=1506 n_q2=753 n_q3=1640 n_q4=850 occupied_cells_4x4=16/16
The image catalog is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits -region wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-34-07_20.00sec_-0.00C_LIGHT_0532.fits
Saving fully-calibrated image wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.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_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/wcs_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits
Preparing the HTML report for the field CVn-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
make_report_in_HTML.sh Phase 1 (network queries): 0s
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
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 33486_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533
The candidate 33486_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533 did not pass the final checks
Discovery image 2     2026 11 03.44117    2461347.94117    13.00    13:09:30.59 +37:25:40.7   5234 2801   /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits

**** FOUND  13:09:30.62 +37:25:40.9 in the exclusion list exclusion_list_bsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 34089_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533
The candidate 34089_fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533 did not pass the final checks
Discovery image 2     2026 11 03.44117    2461347.94117    13.53    13:20:51.26 +41:44:08.5   6553 5413   /data_ssd/NMW-TexasTech/workdir//img_2026-11-03_CI_CVn-02-Q2b1x1_043544_TTUQ2b1x1_4015278_GN8Yx55b/fd_CVn-02-Q2b1x1_2026-11-03_04-35-07_20.00sec_-0.00C_LIGHT_0533.fits

**** FOUND  13:20:51.42 +41:44:10.9 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 0s
Prepared the HTML report for the field CVn-02-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-02-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461347.94048419 -observatory V36
14:42:29.96 -16:34:11.6 Mercury (5.5mag)
13:25:18.73 -13:33:20.8 Venus (-4.3mag)
09:29:41.20 +16:32:54.3 Mars (0.8mag)
09:47:07.26 +14:06:00.5 Jupiter (-2.0mag)
00:36:24.23 +01:00:31.6 Saturn (0.5mag)
04:09:01.27 +20:50:06.4 Uranus (5.6mag)
00:08:19.71 -00:38:18.6 Neptune (7.7mag)
20:24:28.50 -23:41:32.0 Pluto (14.5mag)
10:13:41.56 +10:24:14.4 Moon (-9.8mag)
-rw-r--r-- 1 apache apache 361 Nov  3 04:40 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461347.94048419:
09:47:00.91 +14:06:37.5 Io (6.0mag)
09:46:58.59 +14:06:51.8 Europa (6.1mag)
09:47:19.87 +14:04:48.2 Ganymede (5.5mag)
09:47:36.92 +14:03:11.4 Callisto (6.8mag)
09:48:34.53 +14:15:28.3 Himalia (15.5mag)
09:47:06.17 +14:06:07.5 Thebe (16.3mag)
09:46:53.44 +14:31:01.4 Elara (17.4mag)
09:47:52.51 +13:33:41.8 Pasiphae (17.7mag)
09:44:08.62 +14:37:55.7 Carme (18.7mag)
00:36:33.31 +01:00:03.5 Titan (8.3mag)
00:36:24.48 +01:00:33.2 Rhea (9.6mag)
00:36:54.66 +01:01:11.0 Iapetus (11.0mag)
00:36:13.18 +01:00:11.5 Hyperion (14.2mag)
00:34:37.50 +00:48:22.2 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Nov  3 04:40 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461347.94048419:
04:35:17.39 +17:20:35.8 JWST
15:18:10.92 +53:17:41.2 Chandra
07:15:47.29 -17:54:31.0 XMM-Newton
-rw-r--r-- 1 apache apache 96 Nov  3 04:40 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461347.94048419 -observatory V36
03:33:37.60 +19:56:46.9 17.1mag P/1996 R2 (Lagerkvist)
07:46:38.64 +38:23:12.9 17.9mag P/2004 V5 (LINEAR-Hill)
07:46:44.01 +38:22:59.9 17.9mag P/2004 V5-A (LINEAR-Hill)
07:46:02.55 +38:23:19.6 17.9mag P/2004 V5-B (LINEAR-Hill)
05:01:53.95 +39:06:19.9 17.8mag P/2009 Y2 (Kowalski)
18:48:06.70 -32:52:35.0 15.0mag P/2010 H2 (Vales)
07:45:18.19 -73:54:29.1 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:11:28.45 +35:18:34.3 17.7mag C/2017 K2 (PANSTARRS)
07:35:42.90 +25:20:22.3 16.9mag C/2022 N2 (PANSTARRS)
09:08:34.55 +38:32:06.8 16.4mag C/2024 E1 (Wierzchos)
18:37:01.80 +40:52:16.9 17.4mag C/2024 J3 (ATLAS)
05:43:02.98 -13:33:16.2 16.3mag C/2024 T5 (ATLAS)
14:15:18.43 -04:35:23.7 16.3mag C/2025 Y1 (ATLAS)
20:14:52.62 +53:04:02.0 15.2mag C/2026 A2 (Bok)
13:07:37.10 +16:59:24.4 17.7mag A/2026 E1
16:00:33.23 -65:26:34.4 14.5mag P/2026 R2 (Leonard)
19:34:05.78 -05:22:11.2 17.1mag P/2026 T1 (ATLAS)
23:28:50.12 +14:03:04.1 16.8mag 2P/Encke
23:26:05.99 -25:46:05.5 15.4mag 10P/Tempel
02:39:58.07 +30:33:21.3 16.3mag 11P/Tempel-Swift-LINEAR
12:26:10.71 -10:02:18.1 16.3mag 29P/Schwassmann-Wachmann
00:10:40.18 -09:01:20.4 15.9mag 65P/Gunn
08:00:13.55 +13:35:02.0 14.0mag 78P/Gehrels
08:59:53.47 +45:57:26.3 17.1mag 112P/Urata-Niijima
09:51:11.86 +05:35:04.5 17.8mag 114P/Wiseman-Skiff
12:26:56.62 +08:02:23.8 14.8mag 123P/West-Hartley
19:48:52.92 +14:25:12.5 10.2mag 161P/Hartley-IRAS
11:12:13.92 -03:06:44.8 16.2mag 169P/NEAT
09:41:35.32 +23:29:47.4 18.0mag 186P/Garradd
03:10:40.10 +02:11:10.3 15.3mag 220P/McNaught
06:22:38.76 +49:46:29.9 15.6mag 260P/McNaught
07:56:30.70 +25:04:32.0 17.6mag 266P/Christensen
-rw-r--r-- 1 apache apache 1.6K Nov  3 04:40 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
17:54:18.84 -27:36:35.70  TCP J17541876-2736362  2026-10-24.76 9.92
10:38:47.97 +53:30:34.00  SN2026sqf  2026-10-24.6 13.27
21:49:53.30 +14:07:44.90  ASASSN-26fq  2026-10-23.23 14.82
01:00:14.36 +34:04:05.90  ASASSN-26fp  2026-10-23.34 12.9
01:06:23.14 -63:46:37.10  ASASSN-26fo  2026-10-19.79 -4.88
00:25:28.03 +20:14:39.10  SN2026afqd  2026-10-19.36 -0.77
22:14:03.37 -45:07:18.60  ASASSN-26fm  2026-10-13.75 14.42
01:57:48.19 -33:14:42.30  SN 2026aedl  2026-10-12.33 15.3
18:05:22.06 +17:52:41.00  ASASSN-26fn  2026-10-11.74 15.23
21:50:55.86 -02:51:49.30  SN2026acyb  2026-10-9.85 16.83
03:40:34.04 +02:31:56.70  SN2026acvp  2026-10-9.95 17.75
04:33:25.91 -13:41:04.20  SN2026adhl  2026-10-9.94 17.52
09:20:05.05 +27:03:12.40  SN2026aeif  2026-10-9.47 15.93
02:58:07.77 -65:18:52.90  ASASSN-26fl  2026-10-7.9 -0.85
02:49:03.98 -49:55:57.00  SN 2026adfy  2026-10-4.88 16.61
22:03:46.31 -11:07:57.70  AT2026adgn  2026-10-4.28 -2.56
15:03:12.98 +49:51:05.40  ASASSN-26fj  2026-10-2.06 15.91
08:07:27.96 -65:51:03.90  ASASSN-26fi  2026-10-1.36 15.82
21:02:34.66 +23:57:26.20  ASASSN-26fh  2026-10-1.27 15.94
20:00:16.62 +03:26:29.90  AT2026adfv  2026-10-1.3 16.42
00:08:42.74 -32:33:16.50  SN2026abhc  2026-09-29.15 15.57
21:02:30.26 -19:27:41.80  SN2026acxa  2026-09-29.13 14.65
04:39:17.45 -28:06:12.40  ASASSN-26fg  2026-09-23.25 15.73
05:25:07.80 +04:38:32.40  SN2026aajs  2026-09-21.32 17.04
19:56:12.67 +08:25:27.70  AT2026acgs  2026-09-18.14 15.84
00:02:34.06 +52:55:18.90  ASASSN-26ff  2026-09-16.38 15.41
23:44:33.18 +17:46:12.20  SN2026yjv  2026-09-15.38 18.32
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.64 +34:24:35.00  SN2026aaiv  2026-09-7.25 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.79 -22:25:29.10  V8055  2026-08-30 10.76
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.89 -10:37:05.90  SN2026vbh  2026-07-25.05 15.79
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
-rw-r--r-- 1 apache apache 5.7K Nov  3 04:40 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
00:42:36.61 +41:13:50.5  TCP J00423661+4113505  2026-09-29.7462  17.4mag
22:03:46.29 -11:07:57.8  TCP J22034629-1107578  2026-09-29.7438  14.51Cmag
22:05:02.06 +20:49:01.2  TCP J22050206+2049012  2026-10-03.5715  17.13Cmag
00:38:15.01 +41:14:47.2  TCP J00381501+4114472  2026-10-08.5978  17.72Cmag
01:06:05.83 +09:51:20.4  TCP J01060583+0951204  2026-10-10.8543  14.54Cmag
17:54:18.76 -27:36:36.2  TCP J17541876-2736362  2026-10-12.3993  10.8mag
09:56:00.79 +69:06:15.2  PNV J09560079+6906152  2026-10-14.9274  19.38Cmag
00:43:30.83 +41:26:55.3  PNV J00433083+4126553  2026-10-17.5651  18.61Cmag
04:57:32.08 +30:15:41.6  TCP J04573208+3015416  2026-10-17.7818  18.21Cmag
05:21:07.64 +23:38:21.3  TCP J05210764+2338213  2026-10-18.4020  10.3mag
05:34:11.01 +28:45:30.5  TCP J05341101+2845305  2026-10-18.3604  16.6mag
-rw-r--r-- 1 apache apache 191K Nov  3 04:40 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
09:05:17.957 +16:54:24.18  AT 2026afqz  2026-10-14.48 20.4887
08:54:21.666 +09:12:48.44  AT 2026afqy  2026-10-14.49 20.3035
09:25:26.154 +14:49:42.05  SN 2026afqx  2026-09-24.53 19.3798
04:49:00.563 -20:22:30.78  AT 2026afqw  2026-10-16.48 19.4415
07:26:25.375 -34:28:52.68  AT 2026afqv  2026-10-17.34 19.271
21:46:13.715 +36:36:26.80  AT 2026afqu  2026-10-15.87 19.7
03:11:38.085 -02:01:36.09  AT 2026afqt  2026-10-16.06 19.51
07:41:25.037 +21:02:16.50  SN 2026afqs  2026-10-13.18 19.73
08:37:58.823 +12:32:25.90  SN 2026afqr  2026-10-17.23 19.93
04:51:17.403 -26:27:57.01  AT 2026afqq  2026-10-17.26 19.449
04:37:45.596 -24:04:12.02  AT 2026afqp  2026-10-17.26 19.535
01:25:03.389 -32:39:10.49  AT 2026afqo  2026-10-12.21 19.322
03:17:26.864 -15:58:34.85  AT 2026afqn  2026-10-17.30 19.375
17:53:52.220 +41:47:24.16  AT 2026afqm  2026-10-16.83 19.331
06:23:17.419 +70:33:15.10  SN 2026afql  2026-10-17.15 18.737
02:38:36.934 +41:55:58.84  SN 2026afqk  2026-10-17.04 19.369
05:26:14.588 -27:06:01.24  AT 2026afqj  2026-10-17.29 19.31
02:01:09.758 -36:18:14.69  AT 2026afqi  2026-10-12.26 19.361
09:44:49.328 +38:11:23.47  SN 2026afqh  2026-10-17.22 18.467
17:38:02.102 +55:52:14.30  AT 2026afqg  2026-10-16.84 19.253
-rw-r--r-- 1 apache apache 89K Nov  3 04:40 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Tue Nov  3 04:36:55 CST 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 2s (0.03 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 22s (0.37 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 6s (0.10 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 32s (0.53 min)
TIMING SExtractor: 5 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 7s (0.12 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 1s (0.02 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 17s (0.28 min)
FIELD_CVn-02-Q2b1x1: 63s (1.05 min)
=======================================
TOTAL_RUNTIME: 240s (4.00 min)
Finished: Tue Nov  3 04:40:55 CST 2026