FITS images used in this processing run:

Field CVn-01-Q1b1x1 reference image: CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Field CVn-01-Q1b1x1 reference image: CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Field CVn-01-Q1b1x1 second-epoch image: CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Field CVn-01-Q1b1x1 second-epoch image: CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
First image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Last  image: 2461284.65025067 01.09.2026 03:36:11.658   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 0
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.40
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  5331
Objects passed selection criteria:  5307
Measurements per detected object (mean, median, min, max):    2.4    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.4    2.0    2    4
Average stars detected per image: 3429
Average stars matched: 3339.75 (97.3972 %)
Memory usage VmPeak:   232040 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 31 22:49:49 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
First image: 2461172.80899023 12.05.2026 07:24:46.756   /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Last  image: 2461284.65025067 01.09.2026 03:36:11.658   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 11
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.15
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: 12 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):  28656
Objects passed selection criteria:  28555
Measurements per detected object (mean, median, min, max):    2.5    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.5    2.0    2    4
Average stars detected per image: 19131.2
Average stars matched: 18549.5 (96.9592 %)
Memory usage VmPeak:   252796 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 31 22:50:50 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-1 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst
CAMERA_SETTINGS= TTUQ1b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ1.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/TTUQ1b1x1/flats
FRAME_EDGE_OFFSET_PIX= 100
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
CVn-01-Q1b1x1
#######################################
########### Starting CVn-01-Q1b1x1 ###########
Processing CVn-01-Q1b1x1
server tau has sufficient free disk space available: 640696 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 640696 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.png' -> 'transient_report/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits_preview.png'

CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits


renamed 'CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.png' -> 'transient_report/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits_preview.png'

CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits




Read-check the input FITS images... read-check OK
Blank image check the input FITS images... blank-image-check OK
Read date check the input FITS images... read-date-check OK
Mean value check the input FITS images... OK, at least two new images have mean values below the threshold.
----------------------------------------------
INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 449.7917
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 438.5618
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 2252.6619
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 504.8864
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 2317.1460
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 463.3738
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 5.00823
INFO:                  SECOND_EPOCH__SD_ratio= 0.090
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/TTUQ1b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.2999992370605 / [degC] Focuser temperature
AMBTEMP =                 27.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-31T22:35:08.0074413' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T03:35:08.0074413' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.1493982291 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T03:35:17.9128278' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.1495128702 / 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-33d3d743814b8b447' / 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-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     197.999226173787 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9996653854032 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     21.0322222222222 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     311.896944444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.76792568779846 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'CVn-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 12 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29507 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29507 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2999992370605 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2999992370605 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 33.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               901.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                340.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/d_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits :)

Spent 0.762875 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/d_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     28.2999992370605 / [degC] Focuser temperature
AMBTEMP =                 27.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-31T22:36:11.6585983' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T03:36:11.6585983' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.1501349304 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T03:36:21.5636355' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.1502495715 / 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-33d3d743814b8b447' / 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-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     197.999226233311 / [deg] RA of telescope" status=0
Record 32: "DEC     =      45.999665418389 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     20.8719444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     311.985833333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.78789937893818 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'CVn-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '13 12 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29507 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29507 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2999992370605 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2999992370605 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 33.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               901.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                340.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/d_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits :)

Spent 0.645258 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/d_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Previews of the CALIBRATED second-epoch images:


fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits



fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
  
SExtractor catalog cache: saved CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.cat to cache
SExtractor catalog cache: saved CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461284.64951397
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits exists and is non-empty
wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits exists and is non-empty
wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits exists and is non-empty
wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (1st reference image)
verification OK: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Image size: 941.4'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:00.572 +45:59:41.02 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits (1st new image)
verification OK: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Image size: 941.9'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:11.578 +45:59:45.83 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:12:11.578 +45:59:45.83
Angular distance between the image centers 0.0319 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits (2nd new image)
verification OK: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Image size: 941.9'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:08.705 +45:59:49.61 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:12:08.705 +45:59:49.61
Angular distance between the image centers 0.0237 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  13:12:11.578 +45:59:45.83
Second-epoch second image center 13:12:08.705 +45:59:49.61
Angular distance between the image centers 0.00838 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits &> /tmp/tmp.qkEiyVs3xI
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits &> /tmp/tmp.eAKK0EU4Ms
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits &> /tmp/tmp.98jQLKRsK5
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits &> /tmp/tmp.XppJrMmmc3
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Found non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat
The reference image (wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits) and catalog (wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat) found
'wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat' -> 'wcsmag.cat'
Read 5685 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.6849 deg, Dec +39.8612 to +51.3577 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.0168 to 210.6849 deg, Dec 39.8612 to 51.3577 deg
Loaded 4189 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2904 out of 3041 total matches.
Matched with Tycho-2 3041 out of 5685 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.813000
a=0.000000 b=1.000000 c=22.813000
From vast_summary.log: estimated ref. image limiting mag.:  -7.40
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.41

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

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 5685 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.6849 deg, Dec +39.8612 to +51.3577 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.0168 to 210.6849 deg, Dec 39.8612 to 51.3577 deg
Loaded 4189 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2904 out of 3041 total matches.
Matched with Tycho-2 3041 out of 5685 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -> calib.txt_param_ref_wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (aperture=6.1)
Read 5702 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.1897 to 210.6848 deg, Dec +39.8612 to +51.3577 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.1897 to 210.6848 deg, Dec 39.8612 to 51.3577 deg
Loaded 4166 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2907 out of 3042 total matches.
Matched with Tycho-2 3042 out of 5702 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -> calib.txt_param_ref_wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (aperture=6.2)
____ 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:
 2.1 pix  CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 2.1 pix  CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 2.6 pix  fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
 2.6 pix  fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Limiting magnitude estimates:
 15.4 mag.  CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 15.4 mag.  CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 13.2 mag.  fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
 13.3 mag.  fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
All-image limiting magnitude estimate:  13.2 (SNR )  10.8 (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.qkEiyVs3xI (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_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS-calibrated image found: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Checking if the catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS catalog name: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=340, bad_region=0, passed=5685
Got 5685 stars (including 5338 good ones) from the SExtractor catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
util/solve_plate_with_UCAC5 got 5685 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4863 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4859 matched stars entering correct_measured_positions(), 4859 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4859 matched stars entering correct_measured_positions(), 5685 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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4863 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4859 matched stars entering correct_measured_positions(), 5685 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4859 matched stars entering correct_measured_positions(), 5685 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4859 stars left (next iteration limit 5344)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits N_match=4859 sigma_overall_arcsec=0.348 sigma_q1_arcsec=0.332 sigma_q2_arcsec=0.392 sigma_q3_arcsec=0.333 sigma_q4_arcsec=0.336 n_q1=1318 n_q2=1186 n_q3=1203 n_q4=1152 worst_quadrant_to_overall_ratio=1.129
The image catalog is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -region wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.eAKK0EU4Ms (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_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS-calibrated image found: wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Checking if the catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS catalog name: wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=330, bad_region=0, passed=5702
Got 5702 stars (including 5364 good ones) from the SExtractor catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
util/solve_plate_with_UCAC5 got 5702 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4852 matched stars entering correct_measured_positions(), 4852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4852 matched stars entering correct_measured_positions(), 5702 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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4852 matched stars entering correct_measured_positions(), 5702 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4852 matched stars entering correct_measured_positions(), 5702 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4852 stars left (next iteration limit 5337)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits N_match=4852 sigma_overall_arcsec=0.353 sigma_q1_arcsec=0.357 sigma_q2_arcsec=0.410 sigma_q3_arcsec=0.324 sigma_q4_arcsec=0.329 n_q1=1319 n_q2=1183 n_q3=1198 n_q4=1152 worst_quadrant_to_overall_ratio=1.160
The image catalog is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -region wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.98jQLKRsK5 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Checking if the catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS catalog name: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 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=91, bad_region=0, passed=1353
Got 1353 stars (including 1262 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat 
util/solve_plate_with_UCAC5 got 1353 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.3 to 51.2)
Done reading UCAC5 zone files...
Matched 1229 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1228 matched stars entering correct_measured_positions(), 1212 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1228 matched stars entering correct_measured_positions(), 1335 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 651 to 708 (Dec 40.3 to 51.2)
Done reading UCAC5 zone files...
Matched 1228 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1227 matched stars entering correct_measured_positions(), 1334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.42" 
Accuracy estimation diagnostic: 1227 matched stars entering correct_measured_positions(), 1334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.42" 
Excluding outliers - 1227 stars left (next iteration limit 1350)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1227 robust_rms=8.571 arcsec worst_quadrant_rms=10.654 arcsec
SIP_REFIT: SIP order 3 trial: matched=1227 robust_rms=0.698 arcsec worst_quadrant_rms=1.151 arcsec
SIP_REFIT: SIP order 5 trial: matched=1227 robust_rms=0.508 arcsec worst_quadrant_rms=0.696 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1227 robust_rms_before=1.026 arcsec robust_rms_before_corrected=0.463 arcsec robust_rms_after=0.508 arcsec worst_quadrant_rms_before=0.614 worst_quadrant_rms_after=0.696
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.614 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits N_match=1227 sigma_overall_arcsec=0.436 sigma_q1_arcsec=0.319 sigma_q2_arcsec=0.636 sigma_q3_arcsec=0.388 sigma_q4_arcsec=0.608 n_q1=435 n_q2=228 n_q3=285 n_q4=279 worst_quadrant_to_overall_ratio=1.459
The image catalog is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits -region wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.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.XppJrMmmc3 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Checking if the catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS catalog name: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 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=46, bad_region=0, passed=1054
Got 1054 stars (including 1006 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat 
util/solve_plate_with_UCAC5 got 1054 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.3)
Done reading UCAC5 zone files...
Matched 978 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 978 matched stars entering correct_measured_positions(), 935 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 978 matched stars entering correct_measured_positions(), 1001 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 649 to 708 (Dec 39.9 to 51.3)
Done reading UCAC5 zone files...
Matched 978 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 978 matched stars entering correct_measured_positions(), 1002 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Accuracy estimation diagnostic: 978 matched stars entering correct_measured_positions(), 1002 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Excluding outliers - 978 stars left (next iteration limit 1075)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=978 robust_rms=5.562 arcsec worst_quadrant_rms=16.387 arcsec
SIP_REFIT: SIP order 3 trial: matched=978 robust_rms=0.600 arcsec worst_quadrant_rms=0.682 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=978 robust_rms_before=0.978 arcsec robust_rms_before_corrected=0.492 arcsec robust_rms_after=0.600 arcsec worst_quadrant_rms_before=0.528 worst_quadrant_rms_after=0.682
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.528 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits N_match=978 sigma_overall_arcsec=0.478 sigma_q1_arcsec=0.444 sigma_q2_arcsec=0.485 sigma_q3_arcsec=0.426 sigma_q4_arcsec=0.502 n_q1=193 n_q2=305 n_q3=172 n_q4=308 worst_quadrant_to_overall_ratio=1.050
The image catalog is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits -region wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.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-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits to local_wcs_cache/
'wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'local_wcs_cache/wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits'
Saving the final (post-refit) wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits to local_wcs_cache/
'wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'local_wcs_cache/wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits'
Saving the final (post-refit) wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits to local_wcs_cache/
'wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits' -> 'local_wcs_cache/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits'
Saving the final (post-refit) wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits to local_wcs_cache/
'wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits' -> 'local_wcs_cache/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits sigma_overall=0.348 worst_q_ratio=1.129
ref2=CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits sigma_overall=0.353 worst_q_ratio=1.160
new1=fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits sigma_overall=0.436 worst_q_ratio=1.459
new2=fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits sigma_overall=0.478 worst_q_ratio=1.050
reference average sigma_overall=0.3505 worst_q_ratio=1.1445
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255_astrometric_residuals.png (4859 matched stars from wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.32 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256_astrometric_residuals.png (4852 matched stars from wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096_astrometric_residuals.png (1227 matched stars from wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.39 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097_astrometric_residuals.png (978 matched stars from wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.44 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits'
Saving fully-calibrated image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits'
Preparing the HTML report for the field CVn-01-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field CVn-01-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
  
SExtractor catalog cache: saved CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.cat to cache
SExtractor catalog cache: saved CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Creating symlink local_wcs_cache/wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Creating symlink local_wcs_cache/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits exists and is non-empty
wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits exists and is non-empty
wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits exists and is non-empty
wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (1st reference image)
verification OK: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Image size: 941.4'x626.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:00.572 +45:59:41.02 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits (1st new image)
verification OK: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Image size: 941.9'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:11.578 +45:59:45.83 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:12:11.578 +45:59:45.83
Angular distance between the image centers 0.0319 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits (2nd new image)
verification OK: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Image size: 941.9'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 13:12:08.705 +45:59:49.61 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 13:12:00.572 +45:59:41.02
Second-epoch image center 13:12:08.705 +45:59:49.61
Angular distance between the image centers 0.0237 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  13:12:11.578 +45:59:45.83
Second-epoch second image center 13:12:08.705 +45:59:49.61
Angular distance between the image centers 0.00838 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits &> /tmp/tmp.Ql8R3Nx1hG
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits &> /tmp/tmp.NHECSVWk3s
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits &> /tmp/tmp.XFikdPYhez
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits &> /tmp/tmp.e4jDEjUNov
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Calibrating the magnitude scale
Found non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Found non-empty wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits and wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat
The reference image (wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits) and catalog (wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat) found
'wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat' -> 'wcsmag.cat'
Read 30928 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.7315 deg, Dec +39.8612 to +51.3805 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.0168 to 210.7315 deg, Dec 39.8612 to 51.3805 deg
Loaded 4203 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2755 out of 3050 total matches.
Matched with Tycho-2 3050 out of 30928 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.709000
a=0.000000 b=1.000000 c=22.709000
From vast_summary.log: estimated ref. image limiting mag.:  -7.15
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.56

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.56

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 30928 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0168 to 210.7315 deg, Dec +39.8612 to +51.3805 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.0168 to 210.7315 deg, Dec 39.8612 to 51.3805 deg
Loaded 4203 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2755 out of 3050 total matches.
Matched with Tycho-2 3050 out of 30928 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -> calib.txt_param_ref_wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (aperture=4.8)
Read 30863 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 186.0184 to 210.7334 deg, Dec +39.8612 to +51.3741 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 186.0184 to 210.7334 deg, Dec 39.8612 to 51.3741 deg
Loaded 4202 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 2769 out of 3053 total matches.
Matched with Tycho-2 3053 out of 30863 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Forced-photometry filter: calibrated wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -> calib.txt_param_ref_wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (aperture=4.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 10 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 2.0 pix  CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 2.5 pix  fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
 2.5 pix  fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Limiting magnitude estimates:
 15.6 mag.  CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
 15.6 mag.  CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
 13.4 mag.  fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
 13.4 mag.  fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
All-image limiting magnitude estimate:  13.4 (SNR )  12.9 (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.Ql8R3Nx1hG (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_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits' -> 'wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS-calibrated image found: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
Checking if the catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits
WCS catalog name: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=18, blended=1156, bad_region=19, passed=30910
Got 30910 stars (including 29691 good ones) from the SExtractor catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat 
util/solve_plate_with_UCAC5 got 30910 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 4853 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30910 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30910 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30910 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Excluding outliers - 4853 stars left (next iteration limit 5338)
Stop iterations.


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

SIP_REFIT: wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.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-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits N_match=4853 sigma_overall_arcsec=0.342 sigma_q1_arcsec=0.336 sigma_q2_arcsec=0.401 sigma_q3_arcsec=0.317 sigma_q4_arcsec=0.329 n_q1=1350 n_q2=1217 n_q3=1160 n_q4=1126 worst_quadrant_to_overall_ratio=1.173
The image catalog is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits -region wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.NHECSVWk3s (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_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits' -> 'wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS_IMAGE_NAME=wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS-calibrated image found: wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
Checking if the catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits alredy exist and is non-empty...
Catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat corresponding to the image wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits
WCS catalog name: wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=11, blended=1148, bad_region=20, passed=30852
Got 30852 stars (including 29635 good ones) from the SExtractor catalog wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat 
util/solve_plate_with_UCAC5 got 30852 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 4853 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30852 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 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Accuracy estimation diagnostic: 4853 matched stars entering correct_measured_positions(), 30852 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4853 stars left (next iteration limit 5338)
Stop iterations.


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

SIP_REFIT: wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.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-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits N_match=4853 sigma_overall_arcsec=0.339 sigma_q1_arcsec=0.349 sigma_q2_arcsec=0.402 sigma_q3_arcsec=0.303 sigma_q4_arcsec=0.315 n_q1=1350 n_q2=1219 n_q3=1156 n_q4=1128 worst_quadrant_to_overall_ratio=1.183
The image catalog is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits -region wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.XFikdPYhez (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Checking if the catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
WCS catalog name: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=255, bad_region=3, passed=8320
Got 8320 stars (including 8056 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat 
util/solve_plate_with_UCAC5 got 8320 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4819 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4812 matched stars entering correct_measured_positions(), 4812 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4812 matched stars entering correct_measured_positions(), 8320 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.56" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 651 to 708 (Dec 40.2 to 51.3)
Done reading UCAC5 zone files...
Matched 4819 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4812 matched stars entering correct_measured_positions(), 8320 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.56" 
Accuracy estimation diagnostic: 4812 matched stars entering correct_measured_positions(), 8320 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Excluding outliers - 4812 stars left (next iteration limit 5293)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.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=4812 robust_rms=8.088 arcsec worst_quadrant_rms=10.028 arcsec
SIP_REFIT: SIP order 3 trial: matched=4812 robust_rms=0.828 arcsec worst_quadrant_rms=1.282 arcsec
SIP_REFIT: SIP order 5 trial: matched=4812 robust_rms=0.698 arcsec worst_quadrant_rms=0.939 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4812 robust_rms_before=1.125 arcsec robust_rms_before_corrected=0.635 arcsec robust_rms_after=0.698 arcsec worst_quadrant_rms_before=0.808 worst_quadrant_rms_after=0.939
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.808 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits N_match=4812 sigma_overall_arcsec=0.589 sigma_q1_arcsec=0.465 sigma_q2_arcsec=0.782 sigma_q3_arcsec=0.555 sigma_q4_arcsec=0.763 n_q1=1763 n_q2=863 n_q3=1169 n_q4=1017 worst_quadrant_to_overall_ratio=1.327
The image catalog is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits -region wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.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.e4jDEjUNov (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS_IMAGE_NAME=wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS-calibrated image found: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Checking if the catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits alredy exist and is non-empty...
Catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat corresponding to the image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
WCS catalog name: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=180, bad_region=3, passed=6954
Got 6954 stars (including 6765 good ones) from the SExtractor catalog wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat 
util/solve_plate_with_UCAC5 got 6954 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.9'
Seting catalog search parameters based on the expected field of view 941.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013082 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010466 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4743 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4734 matched stars entering correct_measured_positions(), 4732 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.69" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4734 matched stars entering correct_measured_positions(), 6950 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.4)
Done reading UCAC5 zone files...
Matched 4743 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4735 matched stars entering correct_measured_positions(), 6950 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.70" 
Accuracy estimation diagnostic: 4735 matched stars entering correct_measured_positions(), 6950 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.71" 
Excluding outliers - 4735 stars left (next iteration limit 5207)
Stop iterations.


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

SIP_REFIT: wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.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=4735 robust_rms=5.969 arcsec worst_quadrant_rms=15.657 arcsec
SIP_REFIT: SIP order 3 trial: matched=4735 robust_rms=0.904 arcsec worst_quadrant_rms=1.090 arcsec
SIP_REFIT: SIP order 5 trial: matched=4735 robust_rms=0.805 arcsec worst_quadrant_rms=0.940 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4735 robust_rms_before=1.191 arcsec robust_rms_before_corrected=0.755 arcsec robust_rms_after=0.805 arcsec worst_quadrant_rms_before=0.869 worst_quadrant_rms_after=0.940
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.869 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits N_match=4735 sigma_overall_arcsec=0.701 sigma_q1_arcsec=0.634 sigma_q2_arcsec=0.723 sigma_q3_arcsec=0.614 sigma_q4_arcsec=0.789 n_q1=990 n_q2=1419 n_q3=901 n_q4=1425 worst_quadrant_to_overall_ratio=1.124
The image catalog is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits -region wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.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-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Saving fully-calibrated image wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/wcs_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits
Preparing the HTML report for the field CVn-01-Q1b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_CVn-01-Q1b1x1_2026-05-12_02-24-46_20.00sec_-5.00C_LIGHTs_0255.fits at 13:21:31.85 +44:09:56.6:  13.43 +/- 0.03  detection
Forced photometry on wcs_CVn-01-Q1b1x1_2026-05-12_02-25-24_20.00sec_-4.90C_LIGHTs_0256.fits at 13:21:31.85 +44:09:56.6:  13.42 +/- 0.03  detection
Forced photometry reference-image weighted average:  13.42 +/- 0.02
Forced photometry filter REJECTED candidate at 13:21:31.85 +44:09:56.6: ref_mag=13.42 +/- 0.02 new_mean_mag=13.0170 delta=0.40 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 1s
  
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Considering the candidate 52035_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52035_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.07    12:35:16.30 +48:27:00.0   8582 1727   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (30.1") between the two second-epoch detections
  
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Considering the candidate 52042_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52042_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.65    13:41:28.28 +49:06:02.1   2026 1004   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (28.0") between the two second-epoch detections
  
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Considering the candidate 52043_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52043_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.43    13:03:42.28 +48:32:23.3   5727 1708   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (29.4") between the two second-epoch detections
  
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Considering the candidate 52044_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52044_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.58    13:18:16.11 +49:07:48.7   4308 1267   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (28.0") between the two second-epoch detections
  
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Considering the candidate 52046_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52046_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.84    13:48:42.00 +48:00:10.7   1196 1536   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (28.3") between the two second-epoch detections
  
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Considering the candidate 52047_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52047_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.69    13:14:07.85 +51:05:36.0   4798 0111   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (26.2") between the two second-epoch detections
  
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Considering the candidate 52052_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52052_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    11.94    12:32:45.16 +49:28:59.3   8801 1083   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (29.6") between the two second-epoch detections
  
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Considering the candidate 52101_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52101_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    12.53    13:58:22.72 +50:02:30.3   0477 0121   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (26.9") between the two second-epoch detections
  
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Considering the candidate 52130_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52130_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 2     2026 09 01.15025    2461284.65025    12.89    13:24:12.81 +49:13:31.4   3730 1155   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

Rejecting candidate due to large distance (28.3") between the two second-epoch detections
  
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Considering the candidate 52137_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097
The candidate 52137_fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097 did not pass the final checks
Discovery image 1     2026 09 01.14951    2461284.64951    13.01    13:21:31.87 +44:09:58.3   3714 4217   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-35-08_20.00sec_-0.00C_LIGHTs_0096.fits
Discovery image 2     2026 09 01.15025    2461284.65025    13.02    13:21:31.84 +44:09:54.9   3708 4217   /data_ssd/NMW-TexasTech/workdir//img_2026-08-31_CI_CVn-01-Q1b1x1_224036_TTUQ1b1x1_3015911_qkaQSfx1/fd_CVn-01-Q1b1x1_2026-08-31_22-36-11_20.00sec_0.00C_LIGHTs_0097.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field CVn-01-Q1b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed CVn-01-Q1b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ1.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)2461284.64951397 -observatory V36
10:58:16.70 +08:16:26.6 Mercury (-1.4mag)
13:19:37.12 -12:04:23.3 Venus (-4.6mag)
06:57:12.85 +23:19:21.9 Mars (1.2mag)
09:03:55.08 +17:18:58.9 Jupiter (-1.8mag)
00:53:04.02 +02:48:14.7 Saturn (0.5mag)
04:13:32.59 +21:01:37.0 Uranus (5.7mag)
00:14:18.69 +00:00:36.5 Neptune (7.7mag)
20:26:02.50 -23:38:05.3 Pluto (14.5mag)
01:37:18.96 +14:04:20.2 Moon (-11.4mag)
-rw-r--r-- 1 apache apache 363 Aug 31 22:49 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461284.64951397:
09:03:55.18 +17:19:00.0 Io (6.2mag)
09:03:48.63 +17:19:30.8 Europa (6.3mag)
09:03:50.72 +17:19:19.0 Ganymede (5.6mag)
09:04:06.27 +17:18:04.5 Callisto (6.9mag)
09:01:31.16 +17:32:31.3 Himalia (15.7mag)
09:03:58.74 +17:18:42.4 Thebe (16.6mag)
09:01:10.86 +17:26:59.6 Elara (17.7mag)
09:07:56.04 +16:48:32.9 Pasiphae (17.9mag)
09:05:26.67 +17:35:05.8 Carme (19.0mag)
00:53:14.12 +02:47:45.2 Titan (8.3mag)
00:53:05.06 +02:48:17.5 Rhea (9.6mag)
00:53:32.91 +02:50:56.3 Iapetus (11.0mag)
00:52:55.29 +02:47:41.5 Hyperion (14.4mag)
00:51:57.45 +02:38:35.3 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 31 22:49 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461284.64951397:
21:18:21.57 -05:16:26.4 JWST
15:47:39.82 +51:54:26.8 Chandra
09:23:08.00 -52:46:09.9 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 31 22:49 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461284.64951397 -observatory V36
03:36:20.31 +19:01:50.4 17.4mag P/1996 R2 (Lagerkvist)
18:01:08.36 -34:19:16.8 14.3mag P/2010 H2 (Vales)
07:14:40.22 -69:58:18.9 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:52.45 +33:32:38.6 17.7mag C/2017 K2 (PANSTARRS)
04:41:22.51 +44:28:29.9 15.5mag P/2021 N1 (ZTF)
04:41:22.51 +44:28:29.9 15.5mag P/2021 N1 (ZTF)
22:18:29.48 +29:23:06.3 17.4mag C/2022 E2 (ATLAS)
07:05:19.48 +26:05:44.4 16.8mag C/2022 N2 (PANSTARRS)
10:43:48.67 +27:27:22.1 17.0mag C/2022 QE78 (ATLAS)
09:44:43.35 +05:15:51.2 18.0mag C/2022 R6 (PANSTARRS)
20:43:49.08 +62:18:27.7 18.0mag C/2023 H5 (Lemmon)
15:31:34.93 -15:06:26.9 14.7mag C/2023 R1 (PANSTARRS)
08:32:49.04 +32:31:51.8 15.7mag C/2024 E1 (Wierzchos)
15:05:59.13 +15:23:42.8 17.9mag C/2024 G6 (ATLAS)
18:37:59.36 +43:22:10.6 13.7mag C/2024 J3 (ATLAS)
20:34:50.92 +49:33:37.5 17.5mag C/2024 R4 (PANSTARRS)
05:32:06.78 -12:57:20.8 15.2mag C/2024 T5 (ATLAS)
07:09:15.79 +19:45:09.4 17.8mag C/2025 J1 (Borisov)
11:08:13.89 +19:14:26.5 16.9mag C/2025 V2 (Rankin)
13:14:42.00 +00:36:19.1 16.8mag C/2025 Y1 (ATLAS)
16:26:55.37 +74:58:54.8 16.3mag C/2026 A2 (Bok)
03:08:14.94 +46:16:45.2 17.4mag C/2026 B2 (Sun-Gao)
12:07:37.59 +10:46:28.8 17.5mag A/2026 E1
22:20:54.38 -34:22:28.5 13.2mag 10P/Tempel
11:44:05.16 -05:00:50.2 16.3mag 29P/Schwassmann-Wachmann
11:56:10.96 -03:08:12.3 17.5mag 63P/Wild
00:47:48.21 -06:40:47.1 15.4mag 65P/Gunn
06:27:09.26 +19:41:14.9 17.1mag 78P/Gehrels
03:16:14.26 +14:52:50.8 16.7mag 88P/Howell
05:18:08.74 +26:15:19.8 17.6mag 112P/Urata-Niijima
07:13:13.94 +26:17:58.7 16.0mag 114P/Wiseman-Skiff
10:14:03.66 +22:08:56.5 14.9mag 123P/West-Hartley
12:33:13.80 -19:10:03.4 17.4mag 124P/Mrkos
06:09:44.76 +20:48:50.3 15.9mag 128P/Shoemaker-Holt
23:55:26.28 +02:41:25.3 17.4mag 139P/Vaisala-Oterma
02:51:29.91 -18:08:47.5 15.6mag 161P/Hartley-IRAS
09:55:16.96 +18:26:57.6 11.9mag 169P/NEAT
03:18:29.54 +08:55:17.3 14.4mag 220P/McNaught
04:31:08.74 +34:19:02.2 15.2mag 260P/McNaught
08:15:05.00 +36:18:32.5 17.3mag 295P/LINEAR
15:21:26.62 +00:26:40.6 17.9mag 391P/Kowalski
09:22:25.39 +17:09:57.0 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.1K Aug 31 22:49 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
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
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:32.95 -68:48:30.00  ASASSN-26no  2026-05-24 8.41
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
-rw-r--r-- 1 apache apache 5.7K Aug 31 22:49 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Aug 31 22:49 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
16:58:34.750 +12:37:35.05  AT 2026xzc  2026-08-05.29 21.81
16:57:45.366 -04:44:07.55  AT 2026xzb  2026-08-06.80 18.89
01:01:40.818 +17:24:52.10  AT 2026xza  2026-08-07.04 19.13
02:48:31.834 +11:32:30.95  AT 2026xyz  2026-07-27.60 20.39
02:42:23.530 +11:34:23.14  AT 2026xyy  2026-07-27.60 20.66
00:37:50.285 +37:00:52.41  AT 2026xyx  2026-07-26.50 21.17
00:06:37.754 +38:47:58.50  AT 2026xyw  2026-07-25.56 20.91
23:33:38.449 -02:26:41.50  AT 2026xyv  2026-07-25.58 21.12
22:17:47.290 -01:22:05.26  AT 2026xyu  2026-07-24.49 21.05
22:16:54.038 -04:38:43.31  AT 2026xyt  2026-07-24.49 20.75
22:36:27.535 -04:34:29.60  AT 2026xys  2026-07-24.50 20.57
18:16:57.398 +41:46:52.10  AT 2026xyr  2026-07-20.45 20.64
22:13:09.171 +40:56:17.81  AT 2026xyq  2026-07-20.50 20.52
22:12:39.602 -31:11:47.46  AT 2026xyp  2026-07-20.53 20.52
17:48:55.415 +18:22:21.44  AT 2026xyo  2026-07-19.39 21.04
19:18:30.653 +46:13:06.27  AT 2026xyn  2026-07-18.39 21.15
23:09:22.748 +15:40:57.10  AT 2026xym  2026-07-16.50 20.95
20:54:55.771 +11:11:51.04  AT 2026xyl  2026-07-16.38 21
23:56:52.248 +18:48:26.93  AT 2026xyk  2026-07-16.49 20.53
22:49:22.817 +14:18:55.14  AT 2026xyj  2026-07-16.53 20.53
-rw-r--r-- 1 apache apache 88K Aug 31 22:49 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Aug 31 22:49:17 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 33s (0.55 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 11s (0.18 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: 4s (0.07 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 51s (0.85 min)
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 3 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 13s (0.22 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: 13s (0.22 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 30s (0.50 min)
FIELD_CVn-01-Q1b1x1: 98s (1.63 min)
=======================================
TOTAL_RUNTIME: 110s (1.83 min)
Finished: Mon Aug 31 22:51:07 CDT 2026