NMW transient search results

This analysis is done by the script util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2

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

Processing fields Tau-08-Q2b1x1

Date (UTC) JD(UTC) mag. R.A. & Dec.(J2000) X & Y (pix) Image
Discovery image 1   2026 10 28.30230    2461341.80230    13.25    04:31:39.50 +02:13:20.5   6973 0880   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits
Discovery image 2   2026 10 28.30273    2461341.80273    13.24    04:31:39.54 +02:13:20.0   6972 0879   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits
Mean magnitude and position on the discovery images: 
                   2026 10 28.3025  2461341.8025  13.24  04:31:39.52 +02:13:20.2
193.09440 -29.45297 galactic  Tau  Second-epoch detections are separated by 0.8" and 1.8 pix   
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.  
618 Elfriede                -0     -1       1  13.5    -0   -0
Forced photometry on wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:31:39.52 +02:13:20.2:  15.90 +/- 99.00  upperlimit
Forced photometry on wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:31:39.52 +02:13:20.2:  15.75 +/- 99.00  upperlimit
Check this position in TNS.                         Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs.  WISE atlas  Aladin Lite  SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.

Full images (clouds? trees? ice on chip?)   Tau-08-Q2b1x1 field processing log
Platesolve and blink FITS with VaST+ds9 VaST command line Re-run transient search script Stub MPC report (for online MPChecker) Stub TOCP report Stub variable star reports

Processing complete!

Total number of candidates identified: 1

FITS images used in this processing run:

Field Tau-08-Q2b1x1 reference image: Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Field Tau-08-Q2b1x1 reference image: Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Field Tau-08-Q2b1x1 second-epoch image: Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits
Field Tau-08-Q2b1x1 second-epoch image: Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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: 
Tau-08-Q2b1x1
#######################################
########### Starting Tau-08-Q2b1x1 ###########
Processing Tau-08-Q2b1x1
server tau has sufficient free disk space available: 220565 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 220565 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Small preview (one of the new images): 
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.png' -> 'transient_report/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits_preview.png'
Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits

renamed 'Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.png' -> 'transient_report/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits_preview.png'
Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits


Read-check the input FITS images... read-check OK Blank image check the input FITS images... blank-image-check OK Read date check the input FITS images... read-date-check OK Mean value check the input FITS images... OK, at least two new images have mean values below the threshold. ---------------------------------------------- INFO: REFERENCE_EPOCH__FIRST_IMAGE_MEAN_VALUE= 692.6543 INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 582.5630 INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 9945.0947 INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 2195.5310 INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 10133.9062 INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 2258.4325 ---------------------------------------------- INFO: ref_to_second_epoch_img_mean_ratio= 14.3579 INFO: SECOND_EPOCH__SD_ratio= 0.028 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 = 15.9799995422363 / [degC] Focuser temperature AMBTEMP = 16.0 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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= '2026-10-28T02:15:08.8344894' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-10-28T07:15:08.8344894' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61341.3021855787 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-10-28T07:15:18.7350738' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61341.3023001738 / 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 = 64.2852615215742 / [deg] RA of telescope" status=0 Record 32: "DEC = 5.99980320367606 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 56.1219444444444 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 140.087777777778 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 1.20389893316325 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Tau-08' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 17 09' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+06 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 = 20693 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20693 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 15.9799995422363 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 15.9799995422363 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 14.4 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 90.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 903.12 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 16.0 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 13.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 18.401472 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 10.400832 / [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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/d_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits :) Spent 0.664688 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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/d_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= -0.0 / [degC] CCD temperature FOCTEMP = 15.9099998474121 / [degC] Focuser temperature AMBTEMP = 16.0 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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= '2026-10-28T02:15:46.1464518' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-10-28T07:15:46.1464518' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61341.3026174307 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-10-28T07:15:56.0478627' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61341.3027320253 / 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 = 64.2852614694724 / [deg] RA of telescope" status=0 Record 32: "DEC = 5.99980321207652 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 56.2063888888889 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 140.327222222222 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 1.20271314780659 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Tau-08' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 17 09' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+06 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 = 20693 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20693 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 15.9099998474121 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 15.9099998474121 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 14.4 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 90.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 903.12 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 16.0 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 13.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 18.401472 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 10.400832 / [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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/d_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits :) Spent 0.543418 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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/d_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Previews of the CALIBRATED second-epoch images:

fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits


fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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: 2461341.80230132 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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits exists and is non-empty wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image) verification OK: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Image size: 941.6'x627.1' 15.7(deg)x10.5(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis Image center: 04:17:16.928 +05:58:49.14 J2000 4789.000 3195.000 ################################### The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits (1st new image) verification OK: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Image size: 937.3'x624.2' 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: 04:17:06.922 +06:00:58.73 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:17:16.928 +05:58:49.14 Second-epoch image center 04:17:06.922 +06:00:58.73 Angular distance between the image centers 0.0549 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits (2nd new image) verification OK: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Image size: 937.3'x624.2' 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: 04:17:07.289 +06:01:08.06 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:17:16.928 +05:58:49.14 Second-epoch image center 04:17:07.289 +06:01:08.06 Angular distance between the image centers 0.0555 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 04:17:06.922 +06:00:58.73 Second-epoch second image center 04:17:07.289 +06:01:08.06 Angular distance between the image centers 0.00300 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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.gM2KoX7gYK Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.k6qNnVWv5F Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits &> /tmp/tmp.o3xxSaUBIT Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits &> /tmp/tmp.6lgX3ZRydi Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Calibrating the magnitude scale Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat The reference image (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat' Read 8663 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 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 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg Loaded 5018 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): 4111 out of 4342 total matches. Matched with Tycho-2 4342 out of 8663 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.922800 a=0.000000 b=1.000000 c=22.922800 From vast_summary.log: estimated ref. image limiting mag.: -7.42 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.50 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.50
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 8663 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 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 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg Loaded 5018 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): 4111 out of 4342 total matches. Matched with Tycho-2 4342 out of 8663 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=6.0) Read 7732 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.2889 to 72.2642 deg, Dec +0.7253 to +11.3032 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 56.2889 to 72.2642 deg, Dec 0.7253 to 11.3032 deg Loaded 5008 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): 4066 out of 4298 total matches. Matched with Tycho-2 4298 out of 7732 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=6.2) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 1 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 2.0 pix Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 2.1 pix Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 2.4 pix fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 2.3 pix fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Limiting magnitude estimates: 15.5 mag. Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 15.4 mag. Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 13.8 mag. fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 13.8 mag. fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits All-image limiting magnitude estimate: 13.8 (SNR ) 10.6 (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.gM2KoX7gYK (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits is already a symlink and we do not allow symlinks on symlinks The guess is based on the existing WCS header. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Checking if the catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty... Catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS catalog name: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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=654, bad_region=1709, passed=8663 Got 8663 stars (including 6418 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat util/solve_plate_with_UCAC5 got 8663 stars from the SExtractor catalog Updated FoV from the plate-solved image: 941.6' Seting catalog search parameters based on the expected field of view 941.6 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4906 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.23" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.22" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4906 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.23" Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 7295 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.24" Excluding outliers - 4899 stars left (next iteration limit 5388) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4899 sigma_overall_arcsec=0.254 sigma_q1_arcsec=0.304 sigma_q2_arcsec=0.236 sigma_q3_arcsec=0.234 sigma_q4_arcsec=0.207 n_q1=1740 n_q2=718 n_q3=1781 n_q4=660 worst_quadrant_to_overall_ratio=1.197 WCS_HEADER_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits selection=current_pairs N_selected=4899 N_valid=4899 bias_ra_arcsec=0.007 bias_dec_arcsec=0.001 median_sep_arcsec=0.215 p95_sep_arcsec=0.697 n_q1=1740 n_q2=718 n_q3=1781 n_q4=660 occupied_cells_4x4=16/16 The image catalog is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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.k6qNnVWv5F (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits is already a symlink and we do not allow symlinks on symlinks The guess is based on the existing WCS header. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Checking if the catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty... Catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS catalog name: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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=626, bad_region=1495, passed=7732 Got 7732 stars (including 5720 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat util/solve_plate_with_UCAC5 got 7732 stars from the SExtractor catalog Updated FoV from the plate-solved image: 941.8' Seting catalog search parameters based on the expected field of view 941.8 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4906 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.32" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.31" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4906 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.32" Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 6528 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.33" Excluding outliers - 4899 stars left (next iteration limit 5388) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4899 sigma_overall_arcsec=0.354 sigma_q1_arcsec=0.441 sigma_q2_arcsec=0.360 sigma_q3_arcsec=0.308 sigma_q4_arcsec=0.311 n_q1=1755 n_q2=718 n_q3=1774 n_q4=652 worst_quadrant_to_overall_ratio=1.246 WCS_HEADER_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits selection=current_pairs N_selected=4899 N_valid=4899 bias_ra_arcsec=-0.002 bias_dec_arcsec=-0.009 median_sep_arcsec=0.286 p95_sep_arcsec=0.796 n_q1=1755 n_q2=718 n_q3=1774 n_q4=652 occupied_cells_4x4=16/16 The image catalog is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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.o3xxSaUBIT (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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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=373, bad_region=717, passed=2325 Got 2325 stars (including 1340 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat util/solve_plate_with_UCAC5 got 2325 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.3' Seting catalog search parameters based on the expected field of view 937.3 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013018 (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 0.010414 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 1310 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1310 matched stars entering correct_measured_positions(), 1309 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.38" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1310 matched stars entering correct_measured_positions(), 1691 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 1310 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1309 matched stars entering correct_measured_positions(), 1691 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.38" Accuracy estimation diagnostic: 1309 matched stars entering correct_measured_positions(), 1691 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.38" Excluding outliers - 1309 stars left (next iteration limit 1441) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=1309 robust_rms=7.892 arcsec worst_region_rms=13.229 arcsec outer_annulus_rms=13.229 arcsec SIP_REFIT: SIP order 3 trial: matched=1309 robust_rms=0.637 arcsec worst_region_rms=1.343 arcsec outer_annulus_rms=1.343 arcsec SIP_REFIT: SIP order 5 trial: matched=1309 robust_rms=0.381 arcsec worst_region_rms=0.519 arcsec outer_annulus_rms=0.519 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=1309 robust_rms_before=0.931 arcsec robust_rms_before_corrected=0.393 arcsec robust_rms_after=0.381 arcsec worst_region_rms_before=0.556 worst_region_rms_after=0.519 outer_annulus_rms_before=1.211 outer_annulus_rms_after=0.519 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.556 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits worst_region_rms_kept=0.556 arcsec robust_rms_kept=0.393 arcsec matched=1309 WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits N_match=1309 sigma_overall_arcsec=0.400 sigma_q1_arcsec=0.333 sigma_q2_arcsec=0.373 sigma_q3_arcsec=0.531 sigma_q4_arcsec=0.356 n_q1=383 n_q2=283 n_q3=402 n_q4=241 worst_quadrant_to_overall_ratio=1.326 WCS_HEADER_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits selection=current_pairs N_selected=1309 N_valid=1309 bias_ra_arcsec=-0.174 bias_dec_arcsec=0.458 median_sep_arcsec=0.810 p95_sep_arcsec=1.960 n_q1=383 n_q2=283 n_q3=402 n_q4=241 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits -region wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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.6lgX3ZRydi (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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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=384, bad_region=689, passed=2245 Got 2245 stars (including 1279 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat util/solve_plate_with_UCAC5 got 2245 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.3' Seting catalog search parameters based on the expected field of view 937.3 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013018 (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 0.010414 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 1249 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1248 matched stars entering correct_measured_positions(), 1248 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.43" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 1248 matched stars entering correct_measured_positions(), 1634 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.42" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 1249 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 1248 matched stars entering correct_measured_positions(), 1634 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.43" Accuracy estimation diagnostic: 1248 matched stars entering correct_measured_positions(), 1634 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.44" Excluding outliers - 1248 stars left (next iteration limit 1372) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=1248 robust_rms=7.947 arcsec worst_region_rms=13.481 arcsec outer_annulus_rms=13.481 arcsec SIP_REFIT: SIP order 3 trial: matched=1248 robust_rms=0.746 arcsec worst_region_rms=0.976 arcsec outer_annulus_rms=0.966 arcsec SIP_REFIT: SIP order 5 trial: matched=1248 robust_rms=0.451 arcsec worst_region_rms=0.572 arcsec outer_annulus_rms=0.572 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=1248 robust_rms_before=0.982 arcsec robust_rms_before_corrected=0.439 arcsec robust_rms_after=0.451 arcsec worst_region_rms_before=0.566 worst_region_rms_after=0.572 outer_annulus_rms_before=1.080 outer_annulus_rms_after=0.572 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.566 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits worst_region_rms_kept=0.566 arcsec robust_rms_kept=0.439 arcsec matched=1248 WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits N_match=1248 sigma_overall_arcsec=0.451 sigma_q1_arcsec=0.401 sigma_q2_arcsec=0.450 sigma_q3_arcsec=0.549 sigma_q4_arcsec=0.427 n_q1=365 n_q2=266 n_q3=384 n_q4=233 worst_quadrant_to_overall_ratio=1.216 WCS_HEADER_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits selection=current_pairs N_selected=1248 N_valid=1248 bias_ra_arcsec=-0.218 bias_dec_arcsec=0.441 median_sep_arcsec=0.843 p95_sep_arcsec=1.977 n_q1=365 n_q2=266 n_q3=384 n_q4=233 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits -region wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits to local_wcs_cache/ 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' Saving the final (post-refit) wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits to local_wcs_cache/ 'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' Saving the final (post-refit) wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits to local_wcs_cache/ 'wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits' Saving the final (post-refit) wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits to local_wcs_cache/ 'wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits' ################################### # Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above) ref1=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits sigma_overall=0.254 worst_q_ratio=1.197 ref2=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits sigma_overall=0.354 worst_q_ratio=1.246 new1=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits sigma_overall=0.400 worst_q_ratio=1.326 new2=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits sigma_overall=0.451 worst_q_ratio=1.216 reference average sigma_overall=0.304 worst_q_ratio=1.2215 warn-on-ratio threshold: 2.0x reference ###################################
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193_astrometric_residuals.png (4899 matched stars from wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.22 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108_astrometric_residuals.png (4899 matched stars from wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398_astrometric_residuals.png (1309 matched stars from wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399_astrometric_residuals.png (1248 matched stars from wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.40 arcsec)
Copying WCS-calibrated images back to input directory Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits' Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits' Preparing the HTML report for the field Tau-08-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 make_report_in_HTML.sh Phase 1 (network queries): 0s Pre-generating preview images in parallel... Done pre-generating preview images. Pre-generating finding charts in parallel... Done pre-generating finding charts. make_report_in_HTML.sh Pre-generation: 1s xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 01031_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 01031_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 3   2026 10 28.30273    2461341.80273    9.79    04:29:11.65 +09:56:41.6   6614 5564   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits **** FOUND 04:29:11.65 +09:56:41.6 in the exclusion list exclusion_list.txt **** make_report_in_HTML.sh Phase 2 (HTML assembly): 0s make_report_in_HTML.sh TOTAL: 1s Prepared the HTML report for the field Tau-08-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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache SExtractor catalog cache: saved Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.cat to cache VaST run complete with default.sex.telephoto_lens_vSTL The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Checking WCS cache directory local_wcs_cache Found WCS cache directory local_wcs_cache Creating symlink local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Creating symlink local_wcs_cache/wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits exists and is non-empty wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image) verification OK: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Image size: 941.6'x627.1' 15.7(deg)x10.5(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis Image center: 04:17:16.928 +05:58:49.14 J2000 4789.000 3195.000 ################################### The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits (1st new image) verification OK: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Image size: 937.3'x624.2' 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: 04:17:06.922 +06:00:58.73 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:17:16.928 +05:58:49.14 Second-epoch image center 04:17:06.922 +06:00:58.73 Angular distance between the image centers 0.0549 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits (2nd new image) verification OK: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Image size: 937.3'x624.2' 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: 04:17:07.289 +06:01:08.06 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:17:16.928 +05:58:49.14 Second-epoch image center 04:17:07.289 +06:01:08.06 Angular distance between the image centers 0.0555 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 04:17:06.922 +06:00:58.73 Second-epoch second image center 04:17:07.289 +06:01:08.06 Angular distance between the image centers 0.00300 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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.EGO99dC4tM Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.72OMLXphoO Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits &> /tmp/tmp.Ae0u2E6zjx Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits &> /tmp/tmp.e99Efjv71P Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Calibrating the magnitude scale Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat Found non-empty wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat The reference image (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat' Read 52195 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 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 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg Loaded 5032 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): 3858 out of 4399 total matches. Matched with Tycho-2 4399 out of 52195 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.791450 a=0.000000 b=1.000000 c=22.791450 From vast_summary.log: estimated ref. image limiting mag.: -7.09 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.70 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.70
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 52195 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 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 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg Loaded 5032 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): 3858 out of 4399 total matches. Matched with Tycho-2 4399 out of 52195 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=4.6) Read 48772 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 56.2863 to 72.2652 deg, Dec +0.7157 to +11.3031 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 56.2863 to 72.2652 deg, Dec 0.7157 to 11.3031 deg Loaded 5015 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): 3858 out of 4392 total matches. Matched with Tycho-2 4392 out of 48772 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Forced-photometry filter: calibrated wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=4.6) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 9 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 2.0 pix Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 1.9 pix Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 2.1 pix fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 2.0 pix fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Limiting magnitude estimates: 15.7 mag. Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 15.6 mag. Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 14.0 mag. fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 14.0 mag. fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits All-image limiting magnitude estimate: 14.0 (SNR ) 13.3 (80% of stars) with default.sex.telephoto_lens_vSTL The first estimate is the magnitude of a star detected with a signal-to-noise ratio of following Karpov (2025, Acta Polytechnica, 65, 50). This value should be representative of the faintest stars clearly visible in the image. The brighter of the limiting magnitude estimates for the two second-epoch images is reported here. The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images. This value is representative of the faintest object that may enter the candidate transients list. The hard cut-off for the candidate transients is 15.5 mag. Waiting for UCAC5 plate solver wait ############ /tmp/tmp.EGO99dC4tM (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits is already a symlink and we do not allow symlinks on symlinks The guess is based on the existing WCS header. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits Checking if the catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty... Catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits WCS catalog name: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=9, blended=2672, bad_region=8043, passed=52186 Got 52186 stars (including 41786 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat util/solve_plate_with_UCAC5 got 52186 stars from the SExtractor catalog Updated FoV from the plate-solved image: 941.6' Seting catalog search parameters based on the expected field of view 941.6 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4918 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 4913 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.23" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.23" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4918 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.23" Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 45893 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.25" Excluding outliers - 4913 stars left (next iteration limit 5404) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4913 sigma_overall_arcsec=0.246 sigma_q1_arcsec=0.304 sigma_q2_arcsec=0.232 sigma_q3_arcsec=0.225 sigma_q4_arcsec=0.207 n_q1=1732 n_q2=718 n_q3=1791 n_q4=672 worst_quadrant_to_overall_ratio=1.233 WCS_HEADER_DIAG: file=Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits selection=current_pairs N_selected=4913 N_valid=4913 bias_ra_arcsec=0.009 bias_dec_arcsec=0.002 median_sep_arcsec=0.213 p95_sep_arcsec=0.718 n_q1=1732 n_q2=718 n_q3=1791 n_q4=672 occupied_cells_4x4=16/16 The image catalog is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.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.72OMLXphoO (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits is already a symlink and we do not allow symlinks on symlinks The guess is based on the existing WCS header. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS_IMAGE_NAME=wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS-calibrated image found: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits Checking if the catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty... Catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits WCS catalog name: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=11, blended=2468, bad_region=7460, passed=48761 Got 48761 stars (including 39142 good ones) from the SExtractor catalog wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat util/solve_plate_with_UCAC5 got 48761 stars from the SExtractor catalog Updated FoV from the plate-solved image: 941.8' Seting catalog search parameters based on the expected field of view 941.8 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4916 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 4911 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.31" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.31" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4916 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.31" Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 42973 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.33" Excluding outliers - 4911 stars left (next iteration limit 5402) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4911 sigma_overall_arcsec=0.338 sigma_q1_arcsec=0.417 sigma_q2_arcsec=0.343 sigma_q3_arcsec=0.302 sigma_q4_arcsec=0.294 n_q1=1733 n_q2=718 n_q3=1797 n_q4=663 worst_quadrant_to_overall_ratio=1.233 WCS_HEADER_DIAG: file=Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits selection=current_pairs N_selected=4911 N_valid=4911 bias_ra_arcsec=-0.000 bias_dec_arcsec=-0.004 median_sep_arcsec=0.276 p95_sep_arcsec=0.814 n_q1=1733 n_q2=718 n_q3=1797 n_q4=663 occupied_cells_4x4=16/16 The image catalog is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.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.Ae0u2E6zjx (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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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=1, no_mag_err=0, low_SNR=3, blended=581, bad_region=4648, passed=16606 Got 16606 stars (including 11551 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat util/solve_plate_with_UCAC5 got 16606 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.3' Seting catalog search parameters based on the expected field of view 937.3 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013018 (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 0.010414 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4895 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 4887 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.44" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 13057 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.43" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4894 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 13057 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.44" Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 13057 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.45" Excluding outliers - 4886 stars left (next iteration limit 5375) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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=4886 robust_rms=7.860 arcsec worst_region_rms=15.024 arcsec outer_annulus_rms=15.024 arcsec SIP_REFIT: SIP order 3 trial: matched=4886 robust_rms=0.706 arcsec worst_region_rms=1.315 arcsec outer_annulus_rms=1.315 arcsec SIP_REFIT: SIP order 5 trial: matched=4886 robust_rms=0.483 arcsec worst_region_rms=0.694 arcsec outer_annulus_rms=0.694 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=4886 robust_rms_before=0.957 arcsec robust_rms_before_corrected=0.477 arcsec robust_rms_after=0.483 arcsec worst_region_rms_before=0.699 worst_region_rms_after=0.694 outer_annulus_rms_before=1.459 outer_annulus_rms_after=0.694 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.699 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits worst_region_rms_kept=0.699 arcsec robust_rms_kept=0.477 arcsec matched=4886 WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits N_match=4886 sigma_overall_arcsec=0.476 sigma_q1_arcsec=0.442 sigma_q2_arcsec=0.434 sigma_q3_arcsec=0.600 sigma_q4_arcsec=0.443 n_q1=1355 n_q2=1131 n_q3=1365 n_q4=1035 worst_quadrant_to_overall_ratio=1.260 WCS_HEADER_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits selection=current_pairs N_selected=4886 N_valid=4886 bias_ra_arcsec=-0.140 bias_dec_arcsec=0.486 median_sep_arcsec=0.839 p95_sep_arcsec=2.037 n_q1=1355 n_q2=1131 n_q3=1365 n_q4=1035 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits -region wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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.e99Efjv71P (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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS_IMAGE_NAME=wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS-calibrated image found: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Checking if the catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits WCS catalog name: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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=2, no_mag_err=0, low_SNR=5, blended=600, bad_region=4659, passed=16736 Got 16736 stars (including 11657 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat util/solve_plate_with_UCAC5 got 16736 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.3' Seting catalog search parameters based on the expected field of view 937.3 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013018 (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 0.010414 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4896 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 4888 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.48" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4888 matched stars entering correct_measured_positions(), 13173 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.47" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3) Done reading UCAC5 zone files... Matched 4895 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 13173 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.48" Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 13173 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.49" Excluding outliers - 4887 stars left (next iteration limit 5376) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions SIP_REFIT: SIP order 2 trial: matched=4887 robust_rms=7.778 arcsec worst_region_rms=15.317 arcsec outer_annulus_rms=15.317 arcsec SIP_REFIT: SIP order 3 trial: matched=4887 robust_rms=0.762 arcsec worst_region_rms=1.111 arcsec outer_annulus_rms=1.111 arcsec SIP_REFIT: SIP order 5 trial: matched=4887 robust_rms=0.529 arcsec worst_region_rms=0.687 arcsec outer_annulus_rms=0.687 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=4887 robust_rms_before=0.995 arcsec robust_rms_before_corrected=0.521 arcsec robust_rms_after=0.529 arcsec worst_region_rms_before=0.676 worst_region_rms_after=0.687 outer_annulus_rms_before=1.410 outer_annulus_rms_after=0.687 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.676 arcsec) - keeping the original SIP_REFIT_REJECTED: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits worst_region_rms_kept=0.676 arcsec robust_rms_kept=0.521 arcsec matched=4887 WCS_QUALITY_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits N_match=4887 sigma_overall_arcsec=0.529 sigma_q1_arcsec=0.468 sigma_q2_arcsec=0.515 sigma_q3_arcsec=0.620 sigma_q4_arcsec=0.503 n_q1=1347 n_q2=1140 n_q3=1371 n_q4=1029 worst_quadrant_to_overall_ratio=1.172 WCS_HEADER_DIAG: file=fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits selection=current_pairs N_selected=4887 N_valid=4887 bias_ra_arcsec=-0.184 bias_dec_arcsec=0.481 median_sep_arcsec=0.867 p95_sep_arcsec=2.014 n_q1=1347 n_q2=1140 n_q3=1371 n_q4=1029 occupied_cells_4x4=16/16 The image catalog is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits -region wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Saving fully-calibrated image wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.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_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/wcs_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Preparing the HTML report for the field Tau-08-Q2b1x1 with default.sex.telephoto_lens_vSTL Forced photometry on wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:34:04.52 +02:15:19.4: 12.45 +/- 0.01 detection Forced photometry on wcs_Tau-08-Q2b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:31:39.52 +02:13:20.2: 15.90 +/- 99.00 upperlimit Forced photometry on wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:34:04.52 +02:15:19.4: 12.45 +/- 0.02 detection Forced photometry on wcs_Tau-08-Q2b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:31:39.52 +02:13:20.2: 15.75 +/- 99.00 upperlimit Forced photometry reference-image weighted average: 12.45 +/- 0.01 Forced photometry filter REJECTED candidate at 04:34:04.52 +02:15:19.4: ref_mag=12.45 +/- 0.01 new_mean_mag=12.8427 delta=-0.39 (need > 0.90) Adding exclusion_list_local.txt__out66436.dat to exclusion_list_local.txt make_report_in_HTML.sh Phase 1 (network queries): 30s Pre-generating preview images in parallel... Done pre-generating preview images. Pre-generating finding charts in parallel... Done pre-generating finding charts. make_report_in_HTML.sh Pre-generation: 1s xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 64434_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 64434_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 1   2026 10 28.30230    2461341.80230    12.78    04:34:04.57 +02:15:20.3   7341 0898   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-08_20.00sec_-0.00C_LIGHT_0398.fits Discovery image 2   2026 10 28.30273    2461341.80273    12.94    04:34:04.47 +02:15:18.6   7340 0896   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 64757_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 64757_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    10.84    04:33:56.11 +03:56:39.4   7319 1924   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Rejecting candidate due to large distance (10.5") between the two second-epoch detections xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 64890_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 64890_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    11.09    04:11:01.94 +06:04:08.6   3875 3235   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Rejecting candidate due to large distance (10.7") between the two second-epoch detections xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 65552_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 65552_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    12.24    04:07:26.26 +05:32:29.8   3330 2923   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Rejecting candidate due to large distance (10.9") between the two second-epoch detections xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 65856_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 65856_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    12.81    04:26:53.69 +07:07:14.3   6261 3851   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits **** FOUND 04:26:53.70 +07:07:14.5 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 66084_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 66084_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    12.94    04:12:04.62 +04:21:57.4   4020 2204   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Rejecting candidate due to large distance (10.5") between the two second-epoch detections xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 66105_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 66105_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 2   2026 10 28.30273    2461341.80273    12.88    04:20:56.16 +06:17:23.2   5363 3354   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits Rejecting candidate due to large distance (10.8") between the two second-epoch detections xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 66436_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 Preparing report for the candidate 66436_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 04926_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 The candidate 04926_fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399 did not pass the final checks Discovery image 3   2026 10 28.30273    2461341.80273    9.95    04:29:11.62 +09:56:41.4   6614 5564   /data_ssd/NMW-TexasTech/workdir//img_2026-10-28_CI_Tau-08-Q2b1x1_022313_TTUQ2b1x1_2270318_lpqyNSh2/fd_Tau-08-Q2b1x1_2026-10-28_02-15-46_20.00sec_-0.00C_LIGHT_0399.fits **** FOUND 04:29:11.62 +09:56:41.3 in the exclusion list exclusion_list.txt **** make_report_in_HTML.sh Phase 2 (HTML assembly): 0s make_report_in_HTML.sh TOTAL: 31s Prepared the HTML report for the field Tau-08-Q2b1x1 with default.sex.telephoto_lens_vSTL *------ done with default.sex.telephoto_lens_vSTL ------* #### The local exclusion list is exclusion_list_local.txt #### 04:31:39.52 +02:13:20.2 ########### Completed Tau-08-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 #### 04:31:39.52 +02:13:20.2 ################################################################################### 04:31:39.52 +02:13:20.2 -- asteroid (will NOT add it to exclusion list) 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)2461341.80230132 -observatory V36 15:05:12.45 -19:57:16.8 Mercury (1.3mag) 13:35:03.66 -16:02:41.5 Venus (-4.3mag) 09:17:11.04 +17:23:01.2 Mars (0.9mag) 09:44:09.36 +14:19:49.5 Jupiter (-2.0mag) 00:37:51.66 +01:08:57.9 Saturn (0.4mag) 04:09:57.23 +20:52:31.3 Uranus (5.6mag) 00:08:48.61 -00:35:20.0 Neptune (7.7mag) 20:24:17.53 -23:42:24.5 Pluto (14.5mag) 04:02:43.23 +25:36:38.0 Moon (-12.0mag) -rw-r--r-- 1 apache apache 362 Oct 28 02:27 planets.txt ############################################################ Positions of selected moons from JPL HORIZONS for JD(UT)2461341.80230132: 09:44:16.51 +14:19:09.3 Io (6.0mag) 09:44:04.96 +14:20:13.4 Europa (6.1mag) 09:44:07.85 +14:19:59.0 Ganymede (5.5mag) 09:43:44.79 +14:22:07.1 Callisto (6.8mag) 09:45:10.08 +14:33:06.0 Himalia (15.5mag) 09:44:06.76 +14:20:04.4 Thebe (16.4mag) 09:43:34.86 +14:44:22.0 Elara (17.4mag) 09:45:24.15 +13:45:29.8 Pasiphae (17.7mag) 09:41:35.00 +14:50:40.7 Carme (18.7mag) 00:37:37.48 +01:09:02.4 Titan (8.2mag) 00:37:53.92 +01:08:40.0 Rhea (9.6mag) 00:38:08.61 +01:08:18.6 Iapetus (11.0mag) 00:37:44.79 +01:09:16.9 Hyperion (14.2mag) 00:36:05.44 +00:56:37.7 Phoebe (16.4mag) -rw-r--r-- 1 apache apache 568 Oct 28 02:27 moons.txt ############################################################ Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461341.80230132: 04:14:58.20 +18:50:40.7 JWST 19:01:42.22 +03:07:58.4 Chandra 06:49:07.04 +02:49:51.1 XMM-Newton -rw-r--r-- 1 apache apache 96 Oct 28 02:27 spacecraft.txt ############################################################ Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461341.80230132 -observatory V36 03:37:56.89 +20:04:28.3 17.1mag P/1996 R2 (Lagerkvist) 07:44:25.60 +37:57:34.8 17.9mag P/2004 V5 (LINEAR-Hill) 07:44:30.74 +37:57:22.0 17.9mag P/2004 V5-A (LINEAR-Hill) 07:43:50.50 +37:57:38.4 17.9mag P/2004 V5-B (LINEAR-Hill) 05:02:50.03 +40:04:29.0 17.8mag P/2009 Y2 (Kowalski) 18:41:22.47 -33:03:27.0 14.9mag P/2010 H2 (Vales) 07:44:38.23 -73:30:50.2 17.2mag C/2014 UN271 (Bernardinelli-Bernstein) 06:12:59.42 +35:08:19.1 17.7mag C/2017 K2 (PANSTARRS) 04:28:19.37 +47:36:44.9 17.8mag P/2021 N1 (ZTF) 07:34:56.23 +25:20:53.5 16.9mag C/2022 N2 (PANSTARRS) 09:07:42.72 +37:41:09.6 16.4mag C/2024 E1 (Wierzchos) 18:33:17.73 +40:57:45.6 17.4mag C/2024 J3 (ATLAS) 05:44:46.01 -13:38:35.9 16.4mag C/2024 T5 (ATLAS) 12:49:48.38 +14:38:09.9 15.8mag C/2025 V2 (Rankin) 14:08:37.90 -04:06:24.1 16.4mag C/2025 Y1 (ATLAS) 19:51:17.50 +56:53:14.7 15.4mag C/2026 A2 (Bok) 13:01:49.96 +16:10:15.2 17.7mag A/2026 E1 16:14:06.84 -60:28:59.3 14.0mag P/2026 R2 (Leonard) 19:28:16.47 -05:15:33.9 16.8mag P/2026 T1 (ATLAS) 23:43:44.14 +15:36:45.5 17.0mag 2P/Encke 23:18:16.91 -27:28:24.6 15.2mag 10P/Tempel 02:32:44.62 +33:33:46.4 16.4mag 11P/Tempel-Swift-LINEAR 12:22:19.16 -09:32:31.6 16.3mag 29P/Schwassmann-Wachmann 00:13:06.37 -09:05:24.6 15.8mag 65P/Gunn 07:55:00.78 +14:12:35.9 13.9mag 78P/Gehrels 02:41:24.81 +13:24:13.2 18.0mag 88P/Howell 08:39:18.43 +44:35:28.0 17.1mag 112P/Urata-Niijima 09:39:19.70 +07:54:37.9 17.7mag 114P/Wiseman-Skiff 12:14:59.97 +09:24:43.0 14.8mag 123P/West-Hartley 20:05:45.47 +12:36:08.2 10.0mag 161P/Hartley-IRAS 10:59:00.78 -01:58:39.7 15.7mag 169P/NEAT 03:16:28.04 +02:41:27.5 15.1mag 220P/McNaught 06:20:55.53 +48:40:14.5 15.6mag 260P/McNaught 07:49:50.11 +25:11:57.9 17.6mag 266P/Christensen -rw-r--r-- 1 apache apache 1.7K Oct 28 02:27 comets.txt ############################################################ List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html : 17:54:18.84 -27:36:35.70 TCP J17541876-2736362 2026-10-24.76 9.92 10:38:47.97 +53:30:34.00 SN2026sqf 2026-10-24.6 13.27 21:49:53.30 +14:07:44.90 ASASSN-26fq 2026-10-23.23 14.82 01:00:14.36 +34:04:05.90 ASASSN-26fp 2026-10-23.34 12.9 01:06:23.14 -63:46:37.10 ASASSN-26fo 2026-10-19.79 -4.88 00:25:28.03 +20:14:39.10 SN2026afqd 2026-10-19.36 -0.77 22:14:03.37 -45:07:18.60 ASASSN-26fm 2026-10-13.75 14.42 01:57:48.19 -33:14:42.30 SN 2026aedl 2026-10-12.33 15.3 18:05:22.06 +17:52:41.00 ASASSN-26fn 2026-10-11.74 15.23 21:50:55.86 -02:51:49.30 SN2026acyb 2026-10-9.85 16.83 03:40:34.04 +02:31:56.70 SN2026acvp 2026-10-9.95 17.75 04:33:25.91 -13:41:04.20 SN2026adhl 2026-10-9.94 17.52 09:20:05.05 +27:03:12.40 SN2026aeif 2026-10-9.47 15.93 02:58:07.77 -65:18:52.90 ASASSN-26fl 2026-10-7.9 -0.85 02:49:03.98 -49:55:57.00 SN 2026adfy 2026-10-4.88 16.61 22:03:46.31 -11:07:57.70 AT2026adgn 2026-10-4.28 -2.56 15:03:12.98 +49:51:05.40 ASASSN-26fj 2026-10-2.06 15.91 08:07:27.96 -65:51:03.90 ASASSN-26fi 2026-10-1.36 15.82 21:02:34.66 +23:57:26.20 ASASSN-26fh 2026-10-1.27 15.94 20:00:16.62 +03:26:29.90 AT2026adfv 2026-10-1.3 16.42 00:08:42.74 -32:33:16.50 SN2026abhc 2026-09-29.15 15.57 21:02:30.26 -19:27:41.80 SN2026acxa 2026-09-29.13 14.65 04:39:17.45 -28:06:12.40 ASASSN-26fg 2026-09-23.25 15.73 05:25:07.80 +04:38:32.40 SN2026aajs 2026-09-21.32 17.04 19:56:12.67 +08:25:27.70 AT2026acgs 2026-09-18.14 15.84 00:02:34.06 +52:55:18.90 ASASSN-26ff 2026-09-16.38 15.41 23:44:33.18 +17:46:12.20 SN2026yjv 2026-09-15.38 18.32 16:21:12.24 +57:37:51.30 SN 2026aafh 2026-09-14.11 15.02 23:36:00.27 -19:28:18.00 SN 2026aaks 2026-09-14.44 16.89 16:35:24.86 -05:32:38.20 SN2026aasi 2026-09-12.99 16.58 16:46:08.71 +37:25:21.80 SN2026aafk 2026-09-13.25 17.4 23:48:37.86 +50:25:24.60 SN2026aafs 2026-09-13.47 17 21:20:27.02 +02:10:42.50 SN2026aagh ------- 08:02:26.85 -24:37:44.10 ASASSN-26fe 2026-09-13.34 13.67 02:29:34.91 +23:06:56.30 SN2026aars 2026-09-12.27 16.93 02:47:25.52 -32:58:34.50 SN 2026znh 2026-09-9.92 16.26 04:59:14.53 -83:27:58.80 ASASSN-26fd 2026-09-9.11 17.27 17:52:06.79 -23:43:20.70 ASASSN-26fc 2026-09-8.79 12.14 03:52:53.26 -14:19:28.70 SN 2026zfw 2026-09-8 17.78 01:53:26.46 +10:07:25.10 SN2026aacj 2026-09-7.17 16.27 20:04:34.47 +62:38:38.10 SN2026zji 2026-09-7.14 15.87 22:37:05.64 +34:24:35.00 SN2026aaiv 2026-09-7.25 13.48 22:24:21.29 -10:25:31.60 ASASSN-26fb 2026-09-5.3 13.93 00:44:54.28 +41:33:10.50 AT2026aabo 2026-09-3.29 15.02 00:52:12.40 -58:22:08.60 SN 2026zhl 2026-08-31.92 16.51 19:53:57.87 +61:00:19.70 ASASSN-26fa 2026-08-31.18 14.63 00:21:50.96 -09:29:16.30 AT2026zwp 2026-08-31.41 15.59 19:45:06.20 +18:22:48.80 V488 2026-08-30.13 9.37 18:25:12.79 -22:25:29.10 V8055 2026-08-30 10.76 17:17:45.96 +64:31:40.10 ASASSN-26ez 2026-08-25.13 10.87 19:02:47.09 +58:08:21.00 AT2026zwo 2026-08-24.16 15.78 04:20:07.58 -42:26:59.90 AT2026zjy 2026-08-23.03 15.91 03:08:18.02 +11:54:46.50 SN2026ymb 2026-08-23.4 16.44 20:22:32.48 -50:45:14.30 SN2026yid 2026-08-22.82 15.13 04:24:28.39 -56:20:21.60 ASASSN-26ey 2026-08-20.02 15.55 16:46:37.81 -63:14:59.80 ASASSN-26ex 2026-08-18.78 3.63 21:28:47.85 +20:31:03.60 SN 2026sfn 2026-08-16.3 17.09 23:01:28.67 -61:00:39.00 SN 2026yib 2026-08-14.85 17.36 00:22:23.20 -32:16:02.70 SN 2026whu 2026-08-14.96 16.5 19:56:21.71 -37:24:19.90 ASASSN-26ew 2026-08-13.82 14.73 13:53:14.21 +00:26:52.00 SN 2026wkv 2026-08-10.12 15.83 05:21:07.61 +23:38:20.10 TCP J05210763+2338194 2026-08-10.59 9.34 01:28:20.49 +40:13:27.10 SN2026wpd 2026-08-9.34 16.37 23:47:50.87 +49:28:49.80 SN2026wjs 2026-08-9.35 17.12 16:03:20.92 +17:43:23.70 AT2026xau 2026-08-9.3 17.71 01:10:22.05 -09:34:08.50 SN2026weo 2026-08-7.46 15.76 00:56:54.35 -35:55:29.40 AT2026wdy 2026-08-5.05 16.08 22:08:07.63 -53:03:58.90 AT2026wek 2026-08-3.82 17.17 14:51:51.34 +66:13:24.60 ASASSN-26ev 2026-08-2.15 14.02 12:06:50.79 -36:16:06.20 SN2026wgm 2026-08-1.73 15.61 16:56:36.90 -59:29:26.00 ASASSN-26er 2026-07-25.82 15.09 01:21:27.89 -10:37:05.90 SN2026vbh 2026-07-25.05 15.79 21:17:31.59 +22:25:50.90 ASASSN-26eq 2026-07-24.37 15.13 18:53:36.89 +16:56:43.60 ASASSN-26ep 2026-07-23.47 -4.06 12:18:47.98 -30:48:47.50 ASASSN-26et 2026-07-22.76 13.98 13:00:47.82 +15:42:17.60 SN2026uwk 2026-07-21.75 16.38 18:52:31.11 -32:28:00.90 ASASSN-26en 2026-07-21.77 14.63 14:42:58.01 -62:32:59.10 ASASSN-26es 2026-07-20.79 15.36 20:12:45.57 -32:53:13.00 ASASSN-26em 2026-07-20.94 16.83 18:54:24.33 -46:11:51.70 ASASSN-26eu 2026-07-20.93 14.86 03:18:56.99 -80:55:10.40 AT2026ugi 2026-07-20.03 17.12 18:43:58.40 +24:22:41.80 ASASSN-26eo 2026-07-19.36 16.16 04:50:01.03 -02:22:33.80 ASASSN-26ej 2026-07-16.17 17.02 18:34:55.28 -31:41:00.90 ASASSN-26ek 2026-07-16.24 15.73 17:07:43.61 -44:21:53.50 ASASSN-26el 2026-07-15.86 16.01 14:45:08.35 +24:13:12.30 ASASSN-26ei 2026-07-16.17 16.46 10:00:46.44 -32:36:31.10 AT 2023mhb 2026-07-14.73 16.67 14:39:37.45 -11:22:36.20 AT 2026unl 2026-07-15.27 17.11 10:49:42.57 -11:25:55.80 ASASSN-26eh 2026-07-14.72 16.58 19:33:53.06 -07:15:00.80 ASASSN-22le 2026-07-14.15 15.5 02:45:40.52 -27:55:30.30 ASASSN-26ef 2026-07-12.35 15.86 23:26:43.80 +04:42:39.70 SN 2026qtn 2026-07-12.22 16.47 02:19:17.26 +28:57:15.40 ASASSN-26ec 2026-07-11.53 2.78 18:31:15.56 -05:34:31.50 AT2026stb 2026-07-11.28 -1.29 13:36:08.24 +23:29:05.00 AT2026pjf 2026-07-10.18 -0.72 17:33:39.82 +04:22:36.70 SN2026pir 2026-07-9.86 -0.66 11:21:41.26 -50:33:36.30 ASASSN-26ed 2026-07-8.8 -1.3 23:41:42.11 +26:29:49.10 AT2026qil 2026-07-9.3 16.15 20:21:30.50 -32:03:40.10 ASASSN-26ee 2026-07-7.22 15.53 19:37:44.09 -05:35:42.80 AT2026ryu 2026-07-7.17 14.88 -rw-r--r-- 1 apache apache 5.7K Oct 28 02:27 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 28 02:27 tocp_transients_list.txt ############################################################ Truncated list of recent TNS transients from https://www.wis-tns.org/ : 00:24:47.391 -02:59:42.80 SN 2026aett 2026-10-08.29 20.1822 02:59:10.941 -20:30:34.93 AT 2026aets 2026-10-06.37 19.7659 05:53:12.927 +45:08:05.58 AT 2026aetr 2026-10-04.49 19.6205 06:25:25.402 +52:26:28.41 AT 2026aetq 2026-10-08.47 18.185 01:27:10.008 +12:53:26.88 TDE 2026aetp 2026-10-06.86 20.42 06:50:16.761 +21:22:25.66 AT 2026aeto 2026-10-07.46 19.0121 19:50:47.681 +36:22:07.63 AT 2026aetn 2026-10-05.31 19.441 07:21:33.096 +24:38:24.50 AT 2026aetl 2026-10-07.22 19.8 08:30:03.915 +01:34:45.41 AT 2026aetk 2026-10-05.52 19.5934 10:32:09.821 +11:37:46.17 AT 2026aetj 2026-10-01.53 18.5059 16:11:43.883 +20:59:33.48 AT 2026aeti 2026-10-03.14 19.2268 19:55:55.462 +58:10:08.22 AT 2026aeth 2026-10-02.16 20.7283 14:55:19.146 +37:33:21.65 AT 2026aetg 2026-10-02.14 17.2445 14:51:59.504 +47:04:29.76 AT 2026aetf 2026-10-02.14 19.1738 06:50:36.388 +58:36:08.80 SN 2026aete 2026-10-07.53 19.306 09:20:29.340 +55:06:35.79 SN 2026aetd 2026-10-07.54 17.677 08:26:28.724 +38:08:57.54 AT 2026aetc 2026-10-02.47 19.3657 06:41:51.189 +21:53:58.11 SN 2026aetb 2026-10-07.46 19.5374 08:34:43.981 +46:14:33.95 AT 2026aeta 2026-10-02.51 19.5454 09:00:29.362 -03:20:55.67 AT 2026aesz 2026-10-03.53 19.6849 -rw-r--r-- 1 apache apache 89K Oct 28 02:27 tns_transients_list.txt

Profiling:

CPU temperature: 90 C