NMW transient search results

This analysis is done by the script util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50

The list of candidates will appear below. Please manually reload the page every few minutes untill the 'Processing complete' message appears.

Processing fields Scl-01-Q2b1x1

Processing complete!

Total number of candidates identified: 0

FITS images used in this processing run:

Field Scl-01-Q2b1x1 reference image: Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
Field Scl-01-Q2b1x1 reference image: Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Field Scl-01-Q2b1x1 second-epoch image: Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits
Field Scl-01-Q2b1x1 second-epoch image: Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits

Processing log:

Filtering log:

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=esa_tap (lib/gaia_dr2_cone_search.sh -> ESA Gaia Archive TAP service)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Scl-01-Q2b1x1
#######################################
########### Starting Scl-01-Q2b1x1 ###########
Processing Scl-01-Q2b1x1
server tau has sufficient free disk space available: 449515 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 449515 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits
Small preview (one of the new images): 
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.png' -> 'transient_report/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits_preview.png'
Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits

renamed 'Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.png' -> 'transient_report/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits_preview.png'
Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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... ERROR: the images are too bright (mean value > 25000) ---------------------------------------------- INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 3717.8694 INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 587.5175 INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 24867.5852 INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 5203.6892 INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 25074.5973 INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 5019.0649 ---------------------------------------------- INFO: ref_to_second_epoch_img_mean_ratio= 6.68867 INFO: SECOND_EPOCH__SD_ratio= 0.037 INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image ---------------------------------------------- Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= -0.0 / [degC] CCD temperature FOCTEMP = 16.2700004577637 / [degC] Focuser temperature AMBTEMP = 16.8 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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= '2026-10-23T23:42:12.7222370' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-10-24T04:42:12.7222370' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61337.1959805787 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-10-24T04:42:22.6244786' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61337.1960951854 / Modified Julian Date of averaged midpoint" status=0 Record 16: "XBINNING= 1 / X axis binning factor" status=0 Record 17: "YBINNING= 1 / Y axis binning factor" status=0 Record 18: "GAIN = 30 / Sensor gain" status=0 Record 19: "OFFSET = 30 / Sensor gain offset" status=0 Record 20: "XPIXSZ = 3.76 / [um] Pixel X axis size" status=0 Record 21: "YPIXSZ = 3.76 / [um] Pixel Y axis size" status=0 Record 22: "INSTRUME= 'QHY600M' / Imaging instrument name" status=0 Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0 Record 24: "SET-TEMP= 0.0 / [degC] CCD temperature setpoint" status=0 Record 25: "CCD-TEMP= -0.0 / [degC] CCD temperature" status=0 Record 26: "READOUTM= '2CMS-0' / Sensor readout mode" status=0 Record 27: "USBLIMIT= 50 / Camera-specific USB setting" status=0 Record 28: "TELESCOP= 'QHY600M-TTU2' / Name of telescope" status=0 Record 29: "FOCALLEN= 135.0 / [mm] Focal length" status=0 Record 30: "FOCRATIO= 2.2 / Focal ratio" status=0 Record 31: "RA = 359.99863295323 / [deg] RA of telescope" status=0 Record 32: "DEC = -25.9994619602433 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 30.3983333333333 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 180.830277777778 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 1.9707612608044 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'East' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Scl-01' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '00 00 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '-26 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 = 20708 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20708 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 16.2700004577637 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 16.2700004577637 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 11.5 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 71.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 903.59 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 16.8 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 13.00104 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 8.300664 / [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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388 16 bitpix Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/d_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits :) Spent 0.504362 seconds renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png' try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats MegaDivider v7 Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/d_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 9576 6388 16 bitpix Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388 16 bitpix Avarage count on flat field image: 37096.658242 Minimal real count (from overscan): 5 Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits :) No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0) renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png' Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= 0.0 / [degC] CCD temperature FOCTEMP = 16.1599998474121 / [degC] Focuser temperature AMBTEMP = 16.8 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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= '2026-10-23T23:42:52.9532682' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-10-24T04:42:52.9532682' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61337.1964462153 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-10-24T04:43:02.8571204' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61337.1965608448 / Modified Julian Date of averaged midpoint" status=0 Record 16: "XBINNING= 1 / X axis binning factor" status=0 Record 17: "YBINNING= 1 / Y axis binning factor" status=0 Record 18: "GAIN = 30 / Sensor gain" status=0 Record 19: "OFFSET = 30 / Sensor gain offset" status=0 Record 20: "XPIXSZ = 3.76 / [um] Pixel X axis size" status=0 Record 21: "YPIXSZ = 3.76 / [um] Pixel Y axis size" status=0 Record 22: "INSTRUME= 'QHY600M' / Imaging instrument name" status=0 Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0 Record 24: "SET-TEMP= 0.0 / [degC] CCD temperature setpoint" status=0 Record 25: "CCD-TEMP= 0.0 / [degC] CCD temperature" status=0 Record 26: "READOUTM= '2CMS-0' / Sensor readout mode" status=0 Record 27: "USBLIMIT= 50 / Camera-specific USB setting" status=0 Record 28: "TELESCOP= 'QHY600M-TTU2' / Name of telescope" status=0 Record 29: "FOCALLEN= 135.0 / [mm] Focal length" status=0 Record 30: "FOCRATIO= 2.2 / Focal ratio" status=0 Record 31: "RA = 359.998632977807 / [deg] RA of telescope" status=0 Record 32: "DEC = -25.9994619353536 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 30.3961111111111 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 181.004444444444 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 1.97089057040774 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'East' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Scl-01' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '00 00 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '-26 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 = 20708 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20708 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 16.1599998474121 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 16.1599998474121 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 11.5 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 71.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 903.59 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 16.8 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 4.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 13.00104 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 8.300664 / [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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388 16 bitpix Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/d_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits :) Spent 0.505716 seconds renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png' try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats MegaDivider v7 Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/d_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits 9576 6388 16 bitpix Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388 16 bitpix Avarage count on flat field image: 37096.658242 Minimal real count (from overscan): 5 Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits :) No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0) renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png' Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Previews of the CALIBRATED second-epoch images:

fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits


fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits


Updating neverexclude_list.txt '/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt' Choosing bad regions list '/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst' wait *------ default.sex.telephoto_lens_onlybrightstars_v1 ------* 'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex' Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1 ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.cat to cache SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Checking WCS cache directory local_wcs_cache Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Checking WCS cache directory /home/NMW_web_upload/solved_reference_images Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images The reference JD(UT) for computing planet and comet positions: 2461337.69609632 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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits exists and is non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits exists and is non-empty wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits exists and is non-empty wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (1st reference image) verification OK: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Image size: 937.8'x624.7' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis Image center: 23:59:59.880 -25:59:51.98 J2000 4789.000 3195.000 ################################### The image scale is 5.88"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits (1st new image) verification OK: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Image size: 937.2'x624.4' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis Image center: 23:59:57.637 -26:05:31.09 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 23:59:59.880 -25:59:51.98 Second-epoch image center 23:59:57.637 -26:05:31.09 Angular distance between the image centers 0.0946 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits (2nd new image) verification OK: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Image size: 937.2'x624.4' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis Image center: 00:00:00.769 -26:05:21.07 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 23:59:59.880 -25:59:51.98 Second-epoch image center 00:00:00.769 -26:05:21.07 Angular distance between the image centers 0.0915 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 23:59:57.637 -26:05:31.09 Second-epoch second image center 00:00:00.769 -26:05:21.07 Angular distance between the image centers 0.01205 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/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits &> /tmp/tmp.R5qBiIV0gY Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits &> /tmp/tmp.lq3TWr6Gj8 Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits &> /tmp/tmp.qT32dEalKv Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits &> /tmp/tmp.CuHJxxDIS7 Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Calibrating the magnitude scale Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat The reference image (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits) and catalog (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat) found 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat' -> 'wcsmag.cat' The field straddles RA=0: the RA boundaries wrap around (min > max) Read 1832 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 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 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg Loaded 4401 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): 1460 out of 1482 total matches. Matched with Tycho-2 1482 out of 1832 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.281850 a=0.000000 b=1.000000 c=22.281850 From vast_summary.log: estimated ref. image limiting mag.: -8.36 Updating vast_summary.log: Estimated ref. image limiting mag.: 13.92 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 13.92
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) The field straddles RA=0: the RA boundaries wrap around (min > max) Read 1832 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 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 351.0308 to 9.1144 deg, Dec -31.2631 to -20.5811 deg Loaded 4401 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): 1460 out of 1482 total matches. Matched with Tycho-2 1482 out of 1832 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (aperture=6.4) The field straddles RA=0: the RA boundaries wrap around (min > max) Read 1834 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 351.0288 to 9.1191 deg, Dec -31.2300 to -20.5810 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 351.0288 to 9.1191 deg, Dec -31.2300 to -20.5810 deg Loaded 4388 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): 1496 out of 1514 total matches. Matched with Tycho-2 1514 out of 1834 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (aperture=6.4) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 0 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 2.3 pix Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 2.3 pix Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 2.5 pix fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 2.4 pix fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Limiting magnitude estimates: 13.9 mag. Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 13.9 mag. Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 11.3 mag. fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 11.3 mag. fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits All-image limiting magnitude estimate: 11.3 (SNR ) 8.6 (80% of stars) with default.sex.telephoto_lens_onlybrightstars_v1 The first estimate is the magnitude of a star detected with a signal-to-noise ratio of following Karpov (2025, Acta Polytechnica, 65, 50). This value should be representative of the faintest stars clearly visible in the image. The brighter of the limiting magnitude estimates for the two second-epoch images is reported here. The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images. This value is representative of the faintest object that may enter the candidate transients list. The hard cut-off for the candidate transients is 15.5 mag. Waiting for UCAC5 plate solver wait cp: cannot create regular file 'local_wcs_cache/': Not a directory ############ /tmp/tmp.R5qBiIV0gY (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 570.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits alredy exist and is non-empty... Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=186, bad_region=377, passed=1832 Got 1832 stars (including 1317 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat util/solve_plate_with_UCAC5 got 1832 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.8' Seting catalog search parameters based on the expected field of view 937.8 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013025 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010420 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0308 through 0 to 9.1144, gap 9.1144 to 351.0308 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 293 to 349 (Dec -31.3 to -20.6) Done reading UCAC5 zone files... Matched 1271 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1269 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0294 through 0 to 9.1143, gap 9.1143 to 351.0294 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 293 to 349 (Dec -31.3 to -20.6) Done reading UCAC5 zone files... Matched 1271 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Accuracy estimation diagnostic: 1269 matched stars entering correct_measured_positions(), 1524 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.38" Excluding outliers - 1269 stars left (next iteration limit 1395) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits N_match=1269 sigma_overall_arcsec=0.421 sigma_q1_arcsec=0.376 sigma_q2_arcsec=0.389 sigma_q3_arcsec=0.452 sigma_q4_arcsec=0.425 n_q1=428 n_q2=224 n_q3=406 n_q4=211 worst_quadrant_to_overall_ratio=1.074 WCS_HEADER_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits selection=current_pairs N_selected=1269 N_valid=1269 bias_ra_arcsec=-0.105 bias_dec_arcsec=0.242 median_sep_arcsec=0.660 p95_sep_arcsec=3.344 n_q1=428 n_q2=224 n_q3=406 n_q4=211 occupied_cells_4x4=16/16 The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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.lq3TWr6Gj8 (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 572.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits alredy exist and is non-empty... Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=187, bad_region=373, passed=1834 Got 1834 stars (including 1319 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat util/solve_plate_with_UCAC5 got 1834 stars from the SExtractor catalog Updated FoV from the plate-solved image: 938.1' Seting catalog search parameters based on the expected field of view 938.1 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013029 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010423 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0288 through 0 to 9.1191, gap 9.1191 to 351.0288 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 293 to 349 (Dec -31.2 to -20.6) Done reading UCAC5 zone files... Matched 1275 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1273 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.36" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.36" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0291 through 0 to 9.1191, gap 9.1191 to 351.0291 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 293 to 349 (Dec -31.2 to -20.6) Done reading UCAC5 zone files... Matched 1275 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" Accuracy estimation diagnostic: 1273 matched stars entering correct_measured_positions(), 1529 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" Excluding outliers - 1273 stars left (next iteration limit 1400) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits N_match=1273 sigma_overall_arcsec=0.387 sigma_q1_arcsec=0.346 sigma_q2_arcsec=0.385 sigma_q3_arcsec=0.447 sigma_q4_arcsec=0.389 n_q1=432 n_q2=226 n_q3=403 n_q4=212 worst_quadrant_to_overall_ratio=1.156 WCS_HEADER_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits selection=current_pairs N_selected=1273 N_valid=1273 bias_ra_arcsec=0.028 bias_dec_arcsec=-0.021 median_sep_arcsec=0.355 p95_sep_arcsec=1.226 n_q1=432 n_q2=226 n_q3=403 n_q4=212 occupied_cells_4x4=16/16 The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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.qT32dEalKv (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits alredy exist and is non-empty... Catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=67, bad_region=57, passed=240 Got 240 stars (including 131 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat util/solve_plate_with_UCAC5 got 240 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.2' Seting catalog search parameters based on the expected field of view 937.2 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013017 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010413 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.1746 through 0 to 8.6288, gap 8.6288 to 351.1746 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 293 to 348 (Dec -31.3 to -20.8) Done reading UCAC5 zone files... Matched 121 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 121 matched stars entering correct_measured_positions(), 22 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 121 matched stars entering correct_measured_positions(), 32 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.1748 through 0 to 8.6292, gap 8.6292 to 351.1748 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 293 to 348 (Dec -31.3 to -20.8) Done reading UCAC5 zone files... Matched 121 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 121 matched stars entering correct_measured_positions(), 34 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.45" Accuracy estimation diagnostic: 121 matched stars entering correct_measured_positions(), 34 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.46" Excluding outliers - 121 stars left (next iteration limit 133) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=121 robust_rms=6.882 arcsec worst_region_rms=9.058 arcsec outer_annulus_rms=-1.000 arcsec SIP_REFIT: SIP order 3 trial: matched=121 robust_rms=0.535 arcsec worst_region_rms=0.730 arcsec outer_annulus_rms=-1.000 arcsec SIP_REFIT: selected SIP order 3 SIP_REFIT: order=3 matched=121 robust_rms_before=1.122 arcsec robust_rms_before_corrected=0.561 arcsec robust_rms_after=0.535 arcsec worst_region_rms_before=0.692 worst_region_rms_after=0.730 outer_annulus_rms_before=-1.000 outer_annulus_rms_after=-1.000 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.692 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits worst_region_rms_kept=0.692 arcsec robust_rms_kept=0.561 arcsec matched=121 WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits N_match=121 sigma_overall_arcsec=0.596 sigma_q1_arcsec=0.550 sigma_q2_arcsec=0.542 sigma_q3_arcsec=0.845 sigma_q4_arcsec=0.590 n_q1=44 n_q2=30 n_q3=22 n_q4=25 worst_quadrant_to_overall_ratio=1.419 WCS_HEADER_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits selection=current_pairs N_selected=121 N_valid=121 bias_ra_arcsec=-0.729 bias_dec_arcsec=0.581 median_sep_arcsec=1.027 p95_sep_arcsec=2.061 n_q1=44 n_q2=30 n_q3=22 n_q4=25 occupied_cells_4x4=14/16 The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits -region wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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.CuHJxxDIS7 (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits alredy exist and is non-empty... Catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=64, bad_region=53, passed=223 Got 223 stars (including 119 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat util/solve_plate_with_UCAC5 got 223 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.2' Seting catalog search parameters based on the expected field of view 937.2 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013017 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010413 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.1778 through 0 to 8.6288, gap 8.6288 to 351.1778 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 293 to 348 (Dec -31.3 to -20.8) Done reading UCAC5 zone files... Matched 109 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 109 matched stars entering correct_measured_positions(), 11 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 109 matched stars entering correct_measured_positions(), 19 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.1778 through 0 to 8.6292, gap 8.6292 to 351.1778 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 293 to 348 (Dec -31.3 to -20.8) Done reading UCAC5 zone files... Matched 110 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 110 matched stars entering correct_measured_positions(), 19 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.43" Accuracy estimation diagnostic: 110 matched stars entering correct_measured_positions(), 19 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.49" Excluding outliers - 110 stars left (next iteration limit 119) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=110 robust_rms=5.934 arcsec worst_region_rms=7.258 arcsec outer_annulus_rms=-1.000 arcsec SIP_REFIT: SIP order 3 trial: matched=110 robust_rms=0.573 arcsec worst_region_rms=0.635 arcsec outer_annulus_rms=-1.000 arcsec SIP_REFIT: selected SIP order 3 SIP_REFIT: order=3 matched=110 robust_rms_before=1.099 arcsec robust_rms_before_corrected=0.532 arcsec robust_rms_after=0.573 arcsec worst_region_rms_before=0.612 worst_region_rms_after=0.635 outer_annulus_rms_before=-1.000 outer_annulus_rms_after=-1.000 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.612 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits worst_region_rms_kept=0.612 arcsec robust_rms_kept=0.532 arcsec matched=110 WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits N_match=110 sigma_overall_arcsec=0.545 sigma_q1_arcsec=0.447 sigma_q2_arcsec=0.634 sigma_q3_arcsec=0.760 sigma_q4_arcsec=0.477 n_q1=36 n_q2=27 n_q3=23 n_q4=24 worst_quadrant_to_overall_ratio=1.395 WCS_HEADER_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits selection=current_pairs N_selected=110 N_valid=110 bias_ra_arcsec=-0.648 bias_dec_arcsec=0.652 median_sep_arcsec=1.031 p95_sep_arcsec=1.885 n_q1=36 n_q2=27 n_q3=23 n_q4=24 occupied_cells_4x4=14/16 The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits -region wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits to local_wcs_cache/ 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' Saving the final (post-refit) wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits to local_wcs_cache/ 'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' Saving the final (post-refit) wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits to local_wcs_cache/ 'wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits' -> 'local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits' Saving the final (post-refit) wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits to local_wcs_cache/ 'wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits' -> 'local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits' ################################### # Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above) ref1=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits sigma_overall=0.421 worst_q_ratio=1.074 ref2=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits sigma_overall=0.387 worst_q_ratio=1.156 new1=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits sigma_overall=0.596 worst_q_ratio=1.419 new2=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits sigma_overall=0.545 worst_q_ratio=1.395 reference average sigma_overall=0.404 worst_q_ratio=1.115 warn-on-ratio threshold: 2.0x reference ###################################
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418_astrometric_residuals.png (1269 matched stars from wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419_astrometric_residuals.png (1273 matched stars from wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100_astrometric_residuals.png (121 matched stars from wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.54 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101_astrometric_residuals.png (110 matched stars from wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.47 arcsec)
Copying WCS-calibrated images back to input directory Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits' Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits' Preparing the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 No candidates found here Prepared the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 *------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------* #### The local exclusion list is exclusion_list_local.txt #### wait *------ default.sex.telephoto_lens_vSTL ------* 'default.sex.telephoto_lens_vSTL' -> 'default.sex' Starting VaST with default.sex.telephoto_lens_vSTL ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.cat to cache SExtractor catalog cache: saved Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.cat to cache VaST run complete with default.sex.telephoto_lens_vSTL The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Checking WCS cache directory local_wcs_cache Found WCS cache directory local_wcs_cache Creating symlink local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Creating symlink local_wcs_cache/wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Creating symlink local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Creating symlink local_wcs_cache/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Checking WCS cache directory /home/NMW_web_upload/solved_reference_images Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images Plate-solving the images wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits exists and is non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits exists and is non-empty wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits exists and is non-empty wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (1st reference image) verification OK: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Image size: 937.8'x624.7' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis Image center: 23:59:59.880 -25:59:51.98 J2000 4789.000 3195.000 ################################### The image scale is 5.88"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits (1st new image) verification OK: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Image size: 937.2'x624.4' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis Image center: 23:59:57.637 -26:05:31.09 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 23:59:59.880 -25:59:51.98 Second-epoch image center 23:59:57.637 -26:05:31.09 Angular distance between the image centers 0.0946 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits (2nd new image) verification OK: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Image size: 937.2'x624.4' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis Image center: 00:00:00.769 -26:05:21.07 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 23:59:59.880 -25:59:51.98 Second-epoch image center 00:00:00.769 -26:05:21.07 Angular distance between the image centers 0.0915 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 23:59:57.637 -26:05:31.09 Second-epoch second image center 00:00:00.769 -26:05:21.07 Angular distance between the image centers 0.01205 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/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits &> /tmp/tmp.YK7QO1pLis Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits &> /tmp/tmp.XdJfvw2cGX Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits &> /tmp/tmp.ET4UAC6UxQ Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits &> /tmp/tmp.EW38Er680J Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Calibrating the magnitude scale Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat Found non-empty wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits and wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat The reference image (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits) and catalog (wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat) found 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat' -> 'wcsmag.cat' The field straddles RA=0: the RA boundaries wrap around (min > max) Read 11986 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 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 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg Loaded 4450 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): 3548 out of 3632 total matches. Matched with Tycho-2 3632 out of 11986 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.108150 a=0.000000 b=1.000000 c=22.108150 From vast_summary.log: estimated ref. image limiting mag.: -8.03 Updating vast_summary.log: Estimated ref. image limiting mag.: 14.08 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 14.08
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) The field straddles RA=0: the RA boundaries wrap around (min > max) Read 11986 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 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 350.9560 to 9.1144 deg, Dec -31.2631 to -20.5314 deg Loaded 4450 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): 3548 out of 3632 total matches. Matched with Tycho-2 3632 out of 11986 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (aperture=4.8) The field straddles RA=0: the RA boundaries wrap around (min > max) Read 12014 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 350.9532 to 9.1191 deg, Dec -31.2609 to -20.5233 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 350.9532 to 9.1191 deg, Dec -31.2609 to -20.5233 deg Loaded 4454 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): 3592 out of 3675 total matches. Matched with Tycho-2 3675 out of 12014 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Forced-photometry filter: calibrated wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -> calib.txt_param_ref_wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (aperture=4.8) ____ 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 Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 2.1 pix Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 2.4 pix fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 2.4 pix fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Limiting magnitude estimates: 14.1 mag. Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 14.1 mag. Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 11.5 mag. fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 11.5 mag. fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits All-image limiting magnitude estimate: 11.5 (SNR ) 10.9 (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.YK7QO1pLis (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits 570.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits alredy exist and is non-empty... Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=392, bad_region=2207, passed=11982 Got 11982 stars (including 9514 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat util/solve_plate_with_UCAC5 got 11982 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.8' Seting catalog search parameters based on the expected field of view 937.8 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013025 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010420 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 350.9560 through 0 to 9.1144, gap 9.1144 to 350.9560 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 293 to 349 (Dec -31.3 to -20.5) Done reading UCAC5 zone files... Matched 4850 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4842 matched stars entering correct_measured_positions(), 4843 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.50" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4842 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.49" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 350.9542 through 0 to 9.1143, gap 9.1143 to 350.9542 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 293 to 349 (Dec -31.3 to -20.5) Done reading UCAC5 zone files... Matched 4852 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.50" Accuracy estimation diagnostic: 4845 matched stars entering correct_measured_positions(), 10305 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.51" Excluding outliers - 4845 stars left (next iteration limit 5326) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits N_match=4845 sigma_overall_arcsec=0.527 sigma_q1_arcsec=0.507 sigma_q2_arcsec=0.494 sigma_q3_arcsec=0.635 sigma_q4_arcsec=0.457 n_q1=1606 n_q2=902 n_q3=1487 n_q4=850 worst_quadrant_to_overall_ratio=1.205 WCS_HEADER_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits selection=current_pairs N_selected=4845 N_valid=4845 bias_ra_arcsec=-0.096 bias_dec_arcsec=0.240 median_sep_arcsec=0.731 p95_sep_arcsec=3.283 n_q1=1606 n_q2=902 n_q3=1487 n_q4=850 occupied_cells_4x4=16/16 The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-25-19_20.00sec_5.00C_LIGHT_0418.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.XdJfvw2cGX (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits 572.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits' -> 'wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS_IMAGE_NAME=wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS-calibrated image found: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits Checking if the catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits alredy exist and is non-empty... Catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat corresponding to the image wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits WCS catalog name: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=351, bad_region=2140, passed=12012 Got 12012 stars (including 9580 good ones) from the SExtractor catalog wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat util/solve_plate_with_UCAC5 got 12012 stars from the SExtractor catalog Updated FoV from the plate-solved image: 938.1' Seting catalog search parameters based on the expected field of view 938.1 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013029 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010423 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 350.9532 through 0 to 9.1191, gap 9.1191 to 350.9532 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 293 to 349 (Dec -31.3 to -20.5) Done reading UCAC5 zone files... Matched 4849 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 4841 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.49" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4841 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.48" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 350.9538 through 0 to 9.1190, gap 9.1190 to 350.9538 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 293 to 349 (Dec -31.3 to -20.5) Done reading UCAC5 zone files... Matched 4849 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.49" Accuracy estimation diagnostic: 4840 matched stars entering correct_measured_positions(), 10400 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.50" Excluding outliers - 4840 stars left (next iteration limit 5325) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits N_match=4840 sigma_overall_arcsec=0.513 sigma_q1_arcsec=0.486 sigma_q2_arcsec=0.461 sigma_q3_arcsec=0.657 sigma_q4_arcsec=0.461 n_q1=1612 n_q2=908 n_q3=1478 n_q4=842 worst_quadrant_to_overall_ratio=1.282 WCS_HEADER_DIAG: file=Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits selection=current_pairs N_selected=4840 N_valid=4840 bias_ra_arcsec=0.022 bias_dec_arcsec=-0.004 median_sep_arcsec=0.465 p95_sep_arcsec=1.555 n_q1=1612 n_q2=908 n_q3=1478 n_q4=842 occupied_cells_4x4=16/16 The image catalog is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits -region wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Scl-01-Q2b1x1_2026-07-07_04-26-13_20.00sec_5.00C_LIGHT_0419.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.ET4UAC6UxQ (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits alredy exist and is non-empty... Catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=94, bad_region=454, passed=2100 Got 2100 stars (including 1571 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat util/solve_plate_with_UCAC5 got 2100 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.2' Seting catalog search parameters based on the expected field of view 937.2 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013017 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010413 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0519 through 0 to 8.9177, gap 8.9177 to 351.0519 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 293 to 348 (Dec -31.4 to -20.7) Done reading UCAC5 zone files... Matched 1529 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1529 matched stars entering correct_measured_positions(), 1527 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.88" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1529 matched stars entering correct_measured_positions(), 1733 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.87" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0521 through 0 to 8.9182, gap 8.9182 to 351.0521 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 293 to 348 (Dec -31.4 to -20.7) Done reading UCAC5 zone files... Matched 1529 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1529 matched stars entering correct_measured_positions(), 1734 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.91" Accuracy estimation diagnostic: 1529 matched stars entering correct_measured_positions(), 1734 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.91" Excluding outliers - 1529 stars left (next iteration limit 1681) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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=1529 robust_rms=7.674 arcsec worst_region_rms=14.947 arcsec outer_annulus_rms=14.947 arcsec SIP_REFIT: SIP order 3 trial: matched=1529 robust_rms=0.973 arcsec worst_region_rms=1.340 arcsec outer_annulus_rms=1.340 arcsec SIP_REFIT: SIP order 5 trial: matched=1529 robust_rms=0.877 arcsec worst_region_rms=0.987 arcsec outer_annulus_rms=0.987 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=1529 robust_rms_before=1.352 arcsec robust_rms_before_corrected=0.900 arcsec robust_rms_after=0.877 arcsec worst_region_rms_before=1.038 worst_region_rms_after=0.987 outer_annulus_rms_before=1.620 outer_annulus_rms_after=0.987 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 1.038 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits worst_region_rms_kept=1.038 arcsec robust_rms_kept=0.900 arcsec matched=1529 WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits N_match=1529 sigma_overall_arcsec=0.834 sigma_q1_arcsec=0.848 sigma_q2_arcsec=0.780 sigma_q3_arcsec=0.852 sigma_q4_arcsec=0.882 n_q1=543 n_q2=347 n_q3=332 n_q4=307 worst_quadrant_to_overall_ratio=1.057 WCS_HEADER_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits selection=current_pairs N_selected=1529 N_valid=1529 bias_ra_arcsec=-0.687 bias_dec_arcsec=0.571 median_sep_arcsec=1.155 p95_sep_arcsec=2.636 n_q1=543 n_q2=347 n_q3=332 n_q4=307 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits -region wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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.EW38Er680J (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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS_IMAGE_NAME=wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS-calibrated image found: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Checking if the catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits alredy exist and is non-empty... Catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat corresponding to the image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits WCS catalog name: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=76, bad_region=439, passed=2054 Got 2054 stars (including 1554 good ones) from the SExtractor catalog wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat util/solve_plate_with_UCAC5 got 2054 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.2' Seting catalog search parameters based on the expected field of view 937.2 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013017 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010413 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0527 through 0 to 8.9173, gap 8.9173 to 351.0527 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 293 to 348 (Dec -31.3 to -20.7) Done reading UCAC5 zone files... Matched 1507 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1507 matched stars entering correct_measured_positions(), 1505 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.86" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1507 matched stars entering correct_measured_positions(), 1703 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.86" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 RA wraps around 0/360 boundary: field RA 351.0529 through 0 to 8.9177, gap 8.9177 to 351.0529 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 293 to 348 (Dec -31.3 to -20.7) Done reading UCAC5 zone files... Matched 1507 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1507 matched stars entering correct_measured_positions(), 1703 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.89" Accuracy estimation diagnostic: 1507 matched stars entering correct_measured_positions(), 1703 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.90" Excluding outliers - 1507 stars left (next iteration limit 1657) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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=1507 robust_rms=7.283 arcsec worst_region_rms=18.337 arcsec outer_annulus_rms=18.337 arcsec SIP_REFIT: SIP order 3 trial: matched=1507 robust_rms=1.002 arcsec worst_region_rms=1.358 arcsec outer_annulus_rms=1.358 arcsec SIP_REFIT: SIP order 5 trial: matched=1507 robust_rms=0.880 arcsec worst_region_rms=0.942 arcsec outer_annulus_rms=0.942 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=1507 robust_rms_before=1.358 arcsec robust_rms_before_corrected=0.901 arcsec robust_rms_after=0.880 arcsec worst_region_rms_before=1.020 worst_region_rms_after=0.942 outer_annulus_rms_before=1.675 outer_annulus_rms_after=0.942 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 1.020 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits worst_region_rms_kept=1.020 arcsec robust_rms_kept=0.901 arcsec matched=1507 WCS_QUALITY_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits N_match=1507 sigma_overall_arcsec=0.844 sigma_q1_arcsec=0.877 sigma_q2_arcsec=0.759 sigma_q3_arcsec=0.880 sigma_q4_arcsec=0.870 n_q1=497 n_q2=333 n_q3=329 n_q4=348 worst_quadrant_to_overall_ratio=1.043 WCS_HEADER_DIAG: file=fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits selection=current_pairs N_selected=1507 N_valid=1507 bias_ra_arcsec=-0.723 bias_dec_arcsec=0.560 median_sep_arcsec=1.182 p95_sep_arcsec=2.727 n_q1=497 n_q2=333 n_q3=329 n_q4=348 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits -region wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-12_20.00sec_-0.00C_LIGHT_0100.fits Saving fully-calibrated image wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.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_2026-10-23_CI_Scl-01-Q2b1x1_235722_TTUQ2b1x1_459511_x9Ppnh50/wcs_fd_Scl-01-Q2b1x1_2026-10-23_23-42-52_20.00sec_0.00C_LIGHT_0101.fits Preparing the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_vSTL No candidates found here Prepared the HTML report for the field Scl-01-Q2b1x1 with default.sex.telephoto_lens_vSTL *------ done with default.sex.telephoto_lens_vSTL ------* #### The local exclusion list is exclusion_list_local.txt #### ########### Completed Scl-01-Q2b1x1 ########### The analysis was running at tau We are allowed to update the exclusion list at tau host Found ../exclusion_list_TTUQ2.txt #### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources #### ################################################################################### renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt' renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt' # Count candidates with no identification (that also don't look like hot pix) Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars). ################################################################################### 0 candidates found (excluding asteroids and hot pixels) This does not look like a test run ################################################################################### exclusion_list_gaiadr2.txt NOT FOUND exclusion_list_apass.txt NOT FOUND IS_THIS_TEST_RUN=NO ALLOW_EXCLUSION_LIST_UPDATE= YES #### Nothing to add to the exclusion list #### The observatory MPC code is V36 ############################################################ Positions of planets computed with util/planet_finder/main.py for JD(UT)2461337.69609632 -observatory V36 15:09:13.77 -20:48:16.6 Mercury (0.5mag) 13:43:24.70 -17:40:42.5 Venus (-4.2mag) 09:08:30.23 +17:56:21.3 Mars (0.9mag) 09:41:59.22 +14:29:56.5 Jupiter (-2.0mag) 00:38:54.59 +01:15:11.3 Saturn (0.4mag) 04:10:32.09 +20:54:00.9 Uranus (5.6mag) 00:09:09.48 -00:33:09.6 Neptune (7.7mag) 20:24:12.75 -23:42:51.3 Pluto (14.5mag) 00:12:19.09 +04:10:47.6 Moon (-12.1mag) -rw-r--r-- 1 apache apache 362 Oct 24 00:01 planets.txt ############################################################ Positions of selected moons from JPL HORIZONS for JD(UT)2461337.69609632: 09:41:56.90 +14:30:10.2 Io (6.1mag) 09:41:49.19 +14:30:53.5 Europa (6.2mag) 09:41:54.16 +14:30:25.9 Ganymede (5.5mag) 09:41:43.09 +14:31:28.6 Callisto (6.8mag) 09:42:41.64 +14:45:27.2 Himalia (15.6mag) 09:41:56.17 +14:30:13.5 Thebe (16.4mag) 09:41:11.55 +14:53:59.1 Elara (17.4mag) 09:43:32.83 +13:54:33.6 Pasiphae (17.8mag) 09:39:41.57 +14:59:58.7 Carme (18.8mag) 00:38:54.42 +01:15:27.8 Titan (8.2mag) 00:38:58.73 +01:14:55.7 Rhea (9.6mag) 00:38:59.58 +01:13:42.0 Iapetus (11.0mag) 00:39:06.35 +01:15:12.5 Hyperion (14.1mag) 00:37:09.18 +01:02:47.3 Phoebe (16.4mag) -rw-r--r-- 1 apache apache 568 Oct 24 00:01 moons.txt ############################################################ Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461337.69609632: 03:58:16.39 +19:41:33.6 JWST 16:09:27.69 +47:49:06.8 Chandra 06:07:46.04 +25:32:41.0 XMM-Newton -rw-r--r-- 1 apache apache 96 Oct 24 00:01 spacecraft.txt ############################################################ Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461337.69609632 -observatory V36 03:40:30.03 +20:08:12.4 17.1mag P/1996 R2 (Lagerkvist) 07:42:37.01 +37:41:29.0 17.9mag P/2004 V5 (LINEAR-Hill) 07:42:42.04 +37:41:16.4 17.9mag P/2004 V5-A (LINEAR-Hill) 07:42:02.58 +37:41:30.1 18.0mag P/2004 V5-B (LINEAR-Hill) 05:02:43.54 +40:37:32.8 17.9mag P/2009 Y2 (Kowalski) 18:37:03.46 -33:10:18.4 14.9mag P/2010 H2 (Vales) 07:43:51.31 -73:14:45.3 17.2mag C/2014 UN271 (Bernardinelli-Bernstein) 06:13:52.04 +35:01:18.1 17.7mag C/2017 K2 (PANSTARRS) 04:36:55.91 +48:02:09.9 17.6mag P/2021 N1 (ZTF) 07:34:07.87 +25:21:48.1 16.9mag C/2022 N2 (PANSTARRS) 09:06:44.91 +37:09:08.4 16.3mag C/2024 E1 (Wierzchos) 18:31:11.12 +41:03:38.5 17.4mag C/2024 J3 (ATLAS) 05:45:33.57 -13:39:55.0 16.4mag C/2024 T5 (ATLAS) 12:41:38.58 +14:57:28.2 15.9mag C/2025 V2 (Rankin) 14:04:14.51 -03:46:35.5 16.4mag C/2025 Y1 (ATLAS) 19:34:59.40 +59:12:46.3 15.5mag C/2026 A2 (Bok) 02:21:37.42 +41:10:48.0 18.0mag C/2026 B2 (Sun-Gao) 12:57:55.79 +15:39:50.6 17.7mag A/2026 E1 16:21:13.05 -55:25:12.6 13.7mag P/2026 R2 (Leonard) 19:24:36.59 -05:09:34.8 16.7mag P/2026 T1 (ATLAS) 23:54:12.96 +16:35:08.9 17.1mag 2P/Encke 23:13:12.36 -28:34:31.3 15.0mag 10P/Tempel 02:27:42.08 +35:15:25.2 16.4mag 11P/Tempel-Swift-LINEAR 12:19:40.89 -09:12:29.5 16.3mag 29P/Schwassmann-Wachmann 00:15:02.88 -09:05:29.5 15.7mag 65P/Gunn 07:50:58.63 +14:38:27.5 13.9mag 78P/Gehrels 02:46:08.26 +13:38:46.4 17.9mag 88P/Howell 08:25:02.15 +43:37:17.6 17.0mag 112P/Urata-Niijima 09:30:57.22 +09:27:11.7 17.7mag 114P/Wiseman-Skiff 12:06:53.55 +10:20:21.6 14.8mag 123P/West-Hartley 14:39:42.19 -35:39:26.5 18.0mag 124P/Mrkos 20:20:52.14 +11:04:37.5 9.9mag 161P/Hartley-IRAS 10:49:38.90 -01:09:54.2 15.4mag 169P/NEAT 03:20:08.80 +03:05:44.4 15.0mag 220P/McNaught 06:18:19.48 +47:52:54.4 15.5mag 260P/McNaught 07:44:55.59 +25:17:37.9 17.7mag 266P/Christensen -rw-r--r-- 1 apache apache 1.8K Oct 24 00:01 comets.txt ############################################################ List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html : 22:14:03.37 -45:07:18.60 ASASSN-26fm VIZIER 01:57:48.19 -33:14:42.30 SN 2026aedl ------- 18:05:22.06 +17:52:41.00 ASASSN-26fn 2026-10-11.74 15.23 21:50:55.86 -02:51:49.30 SN2026acyb 2026-10-9.85 16.83 03:40:34.04 +02:31:56.70 SN2026acvp 2026-10-9.95 17.75 04:33:25.91 -13:41:04.20 SN2026adhl ------- 09:20:05.05 +27:03:12.40 SN2026aeif ------- 02:58:07.77 -65:18:52.90 ASASSN-26fl VIZIER 02:49:03.98 -49:55:57.00 SN 2026adfy 2026-10-4.88 16.61 22:03:46.31 -11:07:57.70 AT2026adgn 2026-10-4.28 -2.56 15:03:12.98 +49:51:05.40 ASASSN-26fj VIZIER 08:07:27.96 -65:51:03.90 ASASSN-26fi 2026-10-1.36 15.82 21:02:34.66 +23:57:26.20 ASASSN-26fh 2026-10-1.27 15.94 20:00:16.62 +03:26:29.90 AT2026adfv ------- 00:08:42.74 -32:33:16.50 SN2026abhc ------- 21:02:30.26 -19:27:41.80 SN2026acxa ------- 04:39:17.45 -28:06:12.40 ASASSN-26fg VIZIER 05:25:07.80 +04:38:32.40 SN2026aajs ------- 19:56:12.67 +08:25:27.70 AT2026acgs ------- 00:02:34.06 +52:55:18.90 ASASSN-26ff 2026-09-16.38 15.41 23:44:33.18 +17:46:12.20 SN2026yjv ------- 16:21:12.24 +57:37:51.30 SN 2026aafh ------- 23:36:00.27 -19:28:18.00 SN 2026aaks 2026-09-14.44 16.89 16:35:24.86 -05:32:38.20 SN2026aasi ------- 16:46:08.71 +37:25:21.80 SN2026aafk 2026-09-13.25 17.4 23:48:37.86 +50:25:24.60 SN2026aafs ------- 21:20:27.02 +02:10:42.50 SN2026aagh ------- 08:02:26.85 -24:37:44.10 ASASSN-26fe 2026-09-13.34 13.67 02:29:34.91 +23:06:56.30 SN2026aars ------- 02:47:25.52 -32:58:34.50 SN 2026znh ------- 04:59:14.53 -83:27:58.80 ASASSN-26fd 2026-09-9.11 17.27 17:52:06.79 -23:43:20.70 ASASSN-26fc VIZIER 03:52:53.26 -14:19:28.70 SN 2026zfw ------- 01:53:26.46 +10:07:25.10 SN2026aacj ------- 20:04:34.47 +62:38:38.10 SN2026zji 2026-09-7.14 15.87 22:37:05.64 +34:24:35.00 SN2026aaiv ------- 22:24:21.29 -10:25:31.60 ASASSN-26fb 2026-09-5.3 13.93 00:44:54.28 +41:33:10.50 AT2026aabo 2026-09-3.29 15.02 00:52:12.40 -58:22:08.60 SN 2026zhl 2026-08-31.92 16.51 19:53:57.87 +61:00:19.70 ASASSN-26fa VIZIER 00:21:50.96 -09:29:16.30 AT2026zwp 2026-08-31.41 15.59 19:45:06.20 +18:22:48.80 V488 2026-08-30.13 9.37 18:25:12.74 -22:25:28.60 V8055 ------- 17:17:45.96 +64:31:40.10 ASASSN-26ez VIZIER 19:02:47.09 +58:08:21.00 AT2026zwo ------- 04:20:07.58 -42:26:59.90 AT2026zjy ------- 03:08:18.02 +11:54:46.50 SN2026ymb 2026-08-23.4 16.44 20:22:32.48 -50:45:14.30 SN2026yid ------- 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 ------- 23:01:28.67 -61:00:39.00 SN 2026yib ------- 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 VIZIER 13:53:14.21 +00:26:52.00 SN 2026wkv ------- 05:21:07.61 +23:38:20.10 TCP J05210763+2338194 2026-08-10.59 9.34 01:28:20.49 +40:13:27.10 SN2026wpd 2026-08-9.34 16.37 23:47:50.89 +49:28:51.30 SN2026wjs 2026-08-9.24 17.09 16:03:20.92 +17:43:23.70 AT2026xau ------- 01:10:22.05 -09:34:08.50 SN2026weo ------- 00:56:54.35 -35:55:29.40 AT2026wdy ------- 22:08:07.63 -53:03:58.90 AT2026wek ------- 14:51:51.34 +66:13:24.60 ASASSN-26ev VIZIER 12:06:50.79 -36:16:06.20 SN2026wgm ------- 16:56:36.90 -59:29:26.00 ASASSN-26er VIZIER 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 VIZIER 12:18:47.98 -30:48:47.50 ASASSN-26et VIZIER 13:00:47.82 +15:42:17.60 SN2026uwk ------- 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 VIZIER 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 VIZIER 04:50:01.03 -02:22:33.80 ASASSN-26ej VIZIER 18:34:55.28 -31:41:00.90 ASASSN-26ek VIZIER 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 VIZIER 10:00:46.44 -32:36:31.10 AT 2023mhb ------- 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 VIZIER 19:33:53.06 -07:15:00.80 ASASSN-22le ------- 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 ------- 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 ------- 20:21:30.50 -32:03:40.10 ASASSN-26ee VIZIER 19:37:44.09 -05:35:42.80 AT2026ryu ------- 11:06:55.46 -04:07:04.50 AT2026qqg ------- 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 VIZIER 19:59:01.43 -32:07:34.30 ASASSN-26eb VIZIER 18:46:50.35 -57:44:13.20 SN 2026qqp ------- 19:17:31.69 -39:55:29.90 ASASSN-26dz VIZIER -rw-r--r-- 1 apache apache 9.3K Oct 24 00:01 asassn_transients_list.txt ############################################################ Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html : 19:45:06.48 +18:22:42.2 PNV J19450648+1822422 2026-08-25.1278 9.0mag 00:42:54.65 +41:22:59.3 PNV J00425465+4122593 2026-08-25.4712 18.9mag 00:42:50.38 +41:18:58.76 PNV J00425038+4118587 2026-09-04.1512 18.2mag 00:42:12.76 +41:16:28.4 PNV J00421276+4116284 2026-09-10.9176 18.67Cmag 17:52:06.80 -23:43:20.7 TCP J17520680-2343207 2026-09-08.7896 12.6mag 00:42:40.94 +41:15:37.1 PNV J00424094+4115371 2026-09-17.8925 18.3mag 08:49:20.13 -09:19:15.8 TCP J08492013-0919158 2026-09-18.4698 13.3mag 00:42:13.93 +41:16:35.6 PNV J00421393+4116356 2026-09-22.6597 19.66Cmag 18:14:01.58 +15:13:55.5 TCP J18140158+1513555 2026-09-24.4645 14.1mag 00:42:36.61 +41:13:50.5 TCP J00423661+4113505 2026-09-29.7462 17.4mag 22:03:46.29 -11:07:57.8 TCP J22034629-1107578 2026-09-29.7438 14.51Cmag 22:05:02.06 +20:49:01.2 TCP J22050206+2049012 2026-10-03.5715 17.13Cmag 00:38:15.01 +41:14:47.2 TCP J00381501+4114472 2026-10-08.5978 17.72Cmag 01:06:05.83 +09:51:20.4 TCP J01060583+0951204 2026-10-10.8543 14.54Cmag 17:54:18.76 -27:36:36.2 TCP J17541876-2736362 2026-10-12.3993 10.8mag 09:56:00.79 +69:06:15.2 PNV J09560079+6906152 2026-10-14.9274 19.38Cmag 00:43:30.83 +41:26:55.3 PNV J00433083+4126553 2026-10-17.5651 18.61Cmag 04:57:32.08 +30:15:41.6 TCP J04573208+3015416 2026-10-17.7818 18.21Cmag 05:21:07.64 +23:38:21.3 TCP J05210764+2338213 2026-10-18.4020 10.3mag 05:34:11.01 +28:45:30.5 TCP J05341101+2845305 2026-10-18.3604 16.6mag -rw-r--r-- 1 apache apache 191K Oct 24 00:01 tocp_transients_list.txt ############################################################ Truncated list of recent TNS transients from https://www.wis-tns.org/ : 01:56:50.726 -00:15:50.01 AT 2026aekq 2026-10-04.54 20.65 21:53:52.165 -03:57:11.79 AT 2026aekp 2026-10-04.30 20.65 21:09:53.506 -04:58:54.11 AT 2026aeko 2026-10-04.29 20.26 04:13:29.796 -06:55:30.79 AT 2026aekn 2026-10-03.57 20.84 02:32:58.393 +13:55:00.06 AT 2026aekm 2026-10-04.42 20.04 01:05:52.095 +06:54:00.24 AT 2026aekl 2026-10-04.53 19.74 05:09:54.501 -31:21:30.57 AT 2026aekk 2026-10-05.77 20.11 01:29:07.892 -26:42:21.39 AT 2026aekj 2026-10-05.60 19.74 06:14:23.530 -19:34:40.68 AT 2026aeki 2026-10-03.70 19.19 05:58:35.793 -31:52:49.19 AT 2026aekh 2026-10-03.72 20.02 22:42:30.822 +15:28:22.07 AT 2026aekg 2026-10-05.87 19.9 22:38:34.879 -03:25:35.76 AT 2026aekf 2026-10-05.87 20.25 07:32:36.549 -37:03:17.03 AT 2026aeke 2026-10-05.60 19.029 19:25:22.740 -32:13:07.77 AT 2026aekd 2026-10-05.27 17.996 09:12:21.710 -05:34:42.86 AT 2026aekc 2026-10-05.62 18.67 08:29:04.899 -04:03:01.61 AT 2026aekb 2026-10-05.52 19.2696 03:04:56.578 -27:30:12.21 AT 2026aeka 2026-09-18.79 20.21 01:40:37.614 -22:02:34.42 AT 2026aejz 2026-10-03.60 19.79 03:48:35.736 -31:55:43.92 AT 2026aejy 2026-10-03.65 20.11 16:14:39.042 +07:02:42.65 AT 2026aejx 2026-10-05.22 16.65 -rw-r--r-- 1 apache apache 89K Oct 24 00:01 tns_transients_list.txt

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