NMW transient search results

This analysis is done by the script util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6

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

Processing fields Per-03-Q2b1x1

Date (UTC) JD(UTC) mag. R.A. & Dec.(J2000) X & Y (pix) Image
Reference image   2026 02 22.10953    2461093.60953    13.49    04:21:35.57 +49:37:13.1   7482 1023   /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits
Discovery image 1   2026 02 22.11006    2461093.61006    13.51    04:21:35.40 +49:37:14.6   7478 1020   /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits
Discovery image 2   2026 09 03.24460    2461286.74460    12.49    04:21:35.32 +49:37:16.7   2251 5581   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits
Discovery image 3   2026 09 03.24522    2461286.74522    12.40    04:21:34.93 +49:37:15.8   2245 5579   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits
Mean magnitude and position on the discovery images: 
                   2026 09 03.2449  2461286.7449  12.45  04:21:35.12 +49:37:16.3
153.87732  -0.19136 galactic  Per  Second-epoch detections are separated by 3.9" and 7.0 pix   
The object was found in VSX
 2"  NSVS J0421353+493714          
Type: L:
#   Max.           Min./Amp.       JD0           Period
    10.551   R1      Y     0.533   R1                             280.000000000000                                
The object was not found in astcheck.
Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits at 04:21:35.12 +49:37:16.3:  13.51 +/- 0.04  detection
Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits at 04:21:35.12 +49:37:16.3:  13.51 +/- 0.04  detection
Forced photometry reference-image weighted average:  13.51 +/- 0.03
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?)   Per-03-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

Date (UTC) JD(UTC) mag. R.A. & Dec.(J2000) X & Y (pix) Image
Reference image   2026 02 22.10953    2461093.60953    12.86    04:36:09.33 +43:30:44.6   6011 4729   /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits
Discovery image 1   2026 02 22.11006    2461093.61006    12.93    04:36:09.34 +43:30:44.7   6006 4726   /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits
Discovery image 2   2026 09 03.24460    2461286.74460    12.00    04:36:09.36 +43:30:43.1   3428 1759   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits
Discovery image 3   2026 09 03.24522    2461286.74522    11.84    04:36:09.12 +43:30:47.9   3421 1758   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits
Mean magnitude and position on the discovery images: 
                   2026 09 03.2449  2461286.7449  11.92  04:36:09.24 +43:30:45.5
160.02560  -2.59639 galactic  Per  Second-epoch detections are separated by 5.5" and 6.7 pix   
The object was found in VSX
 2"  ASASSN-V J043609.37+433044.7  
Type: SR
#   Max.           Min./Amp.       JD0           Period
    14.410   g       Y     0.200   g         2458561.66700         35.780000000000                                
The object was not found in astcheck.
Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits at 04:36:09.24 +43:30:45.5:  12.92 +/- 0.02  detection
Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits at 04:36:09.24 +43:30:45.5:  12.97 +/- 0.02  detection
Forced photometry reference-image weighted average:  12.94 +/- 0.02
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?)   Per-03-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: 2

FITS images used in this processing run:

Field Per-03-Q2b1x1 reference image: Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits
Field Per-03-Q2b1x1 reference image: Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits
Field Per-03-Q2b1x1 second-epoch image: Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits
Field Per-03-Q2b1x1 second-epoch image: Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Per-03-Q2b1x1
#######################################
########### Starting Per-03-Q2b1x1 ###########
Processing Per-03-Q2b1x1
server tau has sufficient free disk space available: 195887 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 195887 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits
Small preview (one of the new images): 
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.png' -> 'transient_report/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits_preview.png'
Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits

renamed 'Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.png' -> 'transient_report/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits_preview.png'
Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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= 640.8402 INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 779.6159 INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 6751.5418 INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 2040.4905 INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 6793.1439 INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 2119.9262 ---------------------------------------------- INFO: ref_to_second_epoch_img_mean_ratio= 10.5355 INFO: SECOND_EPOCH__SD_ratio= 0.037 INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image ---------------------------------------------- Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= -0.0 / [degC] CCD temperature FOCTEMP = 25.2199993133545 / [degC] Focuser temperature AMBTEMP = 27.0 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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= '2026-09-03T00:52:03.4332513' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-09-03T05:52:03.4332513' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61286.2444841783 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-09-03T05:52:13.3377742' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61286.2445988078 / 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 = 71.9969847216352 / [deg] RA of telescope" status=0 Record 32: "DEC = 45.9997930856158 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 15.1086111111111 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 44.2419444444444 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 3.78456767998956 / 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 = 'Per-03' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 48 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+46 00 00' / [D M S] Declination of imaged object" status=0 Record 48: "OBJCTROT= 0.0 / [deg] planned rotation of imaged object" status=0 Record 49: "FOCNAME = 'ZWO Focuser' / Focusing equipment name" status=0 Record 50: "FOCPOS = 20487 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20487 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 25.2199993133545 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 25.2199993133545 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 10.6 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 36.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 899.59 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 27.0 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 16.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 7.200576 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 3.600288 / [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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/d_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits :) Spent 0.616995 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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/d_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= -0.0 / [degC] CCD temperature FOCTEMP = 25.2299995422363 / [degC] Focuser temperature AMBTEMP = 26.8 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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= '2026-09-03T00:52:56.8900136' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-09-03T05:52:56.8900136' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61286.2451028936 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-09-03T05:53:06.7938010' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61286.2452175114 / 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 = 71.9969845910338 / [deg] RA of telescope" status=0 Record 32: "DEC = 45.9997930837147 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 15.2394444444444 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 44.3305555555556 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 3.75375928145003 / 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 = 'Per-03' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 48 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+46 00 00' / [D M S] Declination of imaged object" status=0 Record 48: "OBJCTROT= 0.0 / [deg] planned rotation of imaged object" status=0 Record 49: "FOCNAME = 'ZWO Focuser' / Focusing equipment name" status=0 Record 50: "FOCPOS = 20487 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20487 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 25.2299995422363 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 25.2299995422363 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 10.4 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 36.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 899.7 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 26.8 / [degC] Ambient air temperature" status=0 Record 59: "WINDDIR = 5.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0 Record 60: "WINDGUST= 5.400432 / [kph] Wind gust" status=0 Record 61: "WINDSPD = 5.400432 / [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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/d_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits :) Spent 0.561460 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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/d_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Previews of the CALIBRATED second-epoch images:

fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits


fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits SExtractor catalog cache: saved Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.cat to cache SExtractor catalog cache: saved Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Checking WCS cache directory local_wcs_cache Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Checking WCS cache directory /home/NMW_web_upload/solved_reference_images Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images The reference JD(UT) for computing planet and comet positions: 2461286.74459992 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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits exists and is non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits exists and is non-empty wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits exists and is non-empty wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (1st reference image) verification OK: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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: 04:48:00.727 +45:59:45.06 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_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits (1st new image) verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Image size: 941.0'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis Image center: 04:48:11.111 +45:59:25.33 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:48:00.727 +45:59:45.06 Second-epoch image center 04:48:11.111 +45:59:25.33 Angular distance between the image centers 0.0306 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits (2nd new image) verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Image size: 940.9'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis Image center: 04:48:14.569 +45:59:39.52 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:48:00.727 +45:59:45.06 Second-epoch image center 04:48:14.569 +45:59:39.52 Angular distance between the image centers 0.0401 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 04:48:11.111 +45:59:25.33 Second-epoch second image center 04:48:14.569 +45:59:39.52 Angular distance between the image centers 0.01076 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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits &> /tmp/tmp.TjJjXNE9v2 Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits &> /tmp/tmp.izdQrv94sM Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits &> /tmp/tmp.OcEYr67f3K Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits &> /tmp/tmp.pAbOBsZu6U Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Calibrating the magnitude scale Found non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat Found non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat The reference image (wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits) and catalog (wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat) found 'wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat' -> 'wcsmag.cat' Read 23847 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9496 to 84.6399 deg, Dec +39.9317 to +51.3292 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 59.9496 to 84.6399 deg, Dec 39.9317 to 51.3292 deg Loaded 12139 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): 8124 out of 9276 total matches. Matched with Tycho-2 9276 out of 23847 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.944300 a=0.000000 b=1.000000 c=22.944300 From vast_summary.log: estimated ref. image limiting mag.: -7.71 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.23 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.23
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 23847 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9496 to 84.6399 deg, Dec +39.9317 to +51.3292 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 59.9496 to 84.6399 deg, Dec 39.9317 to 51.3292 deg Loaded 12139 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): 8124 out of 9276 total matches. Matched with Tycho-2 9276 out of 23847 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Forced-photometry filter: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits -> calib.txt_param_ref_wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (aperture=6.0) Read 23965 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9494 to 84.6297 deg, Dec +39.9321 to +51.3293 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 59.9494 to 84.6297 deg, Dec 39.9321 to 51.3293 deg Loaded 12131 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): 8135 out of 9280 total matches. Matched with Tycho-2 9280 out of 23965 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Forced-photometry filter: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits -> calib.txt_param_ref_wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits (aperture=6.0) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 0 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 2.1 pix Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 2.1 pix Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 2.8 pix fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 2.8 pix fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Limiting magnitude estimates: 15.2 mag. Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 15.2 mag. Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 11.1 mag. fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 11.0 mag. fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits All-image limiting magnitude estimate: 11.0 (SNR ) 9.5 (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.TjJjXNE9v2 (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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits' -> 'wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS_IMAGE_NAME=wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS-calibrated image found: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Checking if the catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits alredy exist and is non-empty... Catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS catalog name: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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=2564, bad_region=4955, passed=23847 Got 23847 stars (including 16757 good ones) from the SExtractor catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat util/solve_plate_with_UCAC5 got 23847 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 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4922 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4869 matched stars entering correct_measured_positions(), 4869 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.42" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4869 matched stars entering correct_measured_positions(), 19949 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4922 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4869 matched stars entering correct_measured_positions(), 19949 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Accuracy estimation diagnostic: 4869 matched stars entering correct_measured_positions(), 19949 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.44" Excluding outliers - 4869 stars left (next iteration limit 5355) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits N_match=4869 sigma_overall_arcsec=0.469 sigma_q1_arcsec=0.592 sigma_q2_arcsec=0.449 sigma_q3_arcsec=0.450 sigma_q4_arcsec=0.363 n_q1=1401 n_q2=589 n_q3=2033 n_q4=846 worst_quadrant_to_overall_ratio=1.262 The image catalog is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits -region wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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.izdQrv94sM (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/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits' -> 'wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS_IMAGE_NAME=wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS-calibrated image found: wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Checking if the catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits alredy exist and is non-empty... Catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS catalog name: wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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=2577, bad_region=4981, passed=23965 Got 23965 stars (including 16814 good ones) from the SExtractor catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat util/solve_plate_with_UCAC5 got 23965 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 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4919 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 4866 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.42" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 20053 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4917 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 20053 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 20053 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.45" Excluding outliers - 4866 stars left (next iteration limit 5352) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits N_match=4866 sigma_overall_arcsec=0.478 sigma_q1_arcsec=0.605 sigma_q2_arcsec=0.469 sigma_q3_arcsec=0.441 sigma_q4_arcsec=0.363 n_q1=1397 n_q2=593 n_q3=2039 n_q4=837 worst_quadrant_to_overall_ratio=1.265 The image catalog is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits -region wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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.OcEYr67f3K (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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS_IMAGE_NAME=wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS-calibrated image found: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Checking if the catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits alredy exist and is non-empty... Catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS catalog name: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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=97, bad_region=130, passed=949 Got 949 stars (including 733 good ones) from the SExtractor catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat util/solve_plate_with_UCAC5 got 949 stars from the SExtractor catalog Updated FoV from the plate-solved image: 941.0' Seting catalog search parameters based on the expected field of view 941.0 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013069 (47.0 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010456 (37.6 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.2) Done reading UCAC5 zone files... Matched 711 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 701 matched stars entering correct_measured_positions(), 670 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.80" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 700 matched stars entering correct_measured_positions(), 777 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.81" 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 650 to 708 (Dec 40.2 to 51.2) Done reading UCAC5 zone files... Matched 711 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 697 matched stars entering correct_measured_positions(), 777 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.87" Accuracy estimation diagnostic: 697 matched stars entering correct_measured_positions(), 777 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.86" Excluding outliers - 697 stars left (next iteration limit 770) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=697 robust_rms=3.966 arcsec worst_quadrant_rms=22.941 arcsec SIP_REFIT: SIP order 3 trial: matched=697 robust_rms=0.768 arcsec worst_quadrant_rms=0.814 arcsec SIP_REFIT: selected SIP order 3 SIP_REFIT: order=3 matched=697 robust_rms_before=1.719 arcsec robust_rms_before_corrected=0.855 arcsec robust_rms_after=0.768 arcsec worst_quadrant_rms_before=0.966 worst_quadrant_rms_after=0.814 verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Image size: 940.8'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis Image center: 04:48:11.158 +45:59:24.30 J2000 4789.000 3195.000 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ### ### Converted positions of 949 stars ### 'wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log' '/data_ssd/NMW-TexasTech/workdir/vast_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/correct_sextractor_wcs_catalog_usingxy2sky329130.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log' SIP_REFIT: applied the refit solution (order 3, robust RMS 1.719 -> 0.768 arcsec) WCS_QUALITY_DIAG: file=fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits N_match=697 sigma_overall_arcsec=0.828 sigma_q1_arcsec=0.833 sigma_q2_arcsec=0.712 sigma_q3_arcsec=0.840 sigma_q4_arcsec=0.738 n_q1=204 n_q2=44 n_q3=366 n_q4=83 worst_quadrant_to_overall_ratio=1.015 The image catalog is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits -region wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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.pAbOBsZu6U (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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS_IMAGE_NAME=wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS-calibrated image found: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Checking if the catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits alredy exist and is non-empty... Catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS catalog name: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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=91, bad_region=130, passed=983 Got 983 stars (including 773 good ones) from the SExtractor catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat util/solve_plate_with_UCAC5 got 983 stars from the SExtractor catalog Updated FoV from the plate-solved image: 940.9' Seting catalog search parameters based on the expected field of view 940.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013068 (47.0 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010454 (37.6 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.2) Done reading UCAC5 zone files... Matched 747 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 735 matched stars entering correct_measured_positions(), 701 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.77" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 734 matched stars entering correct_measured_positions(), 814 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.76" 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 650 to 708 (Dec 40.2 to 51.2) Done reading UCAC5 zone files... Matched 747 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 732 matched stars entering correct_measured_positions(), 815 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.81" Accuracy estimation diagnostic: 732 matched stars entering correct_measured_positions(), 815 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.82" Excluding outliers - 732 stars left (next iteration limit 807) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=732 robust_rms=4.222 arcsec worst_quadrant_rms=21.809 arcsec SIP_REFIT: SIP order 3 trial: matched=732 robust_rms=0.789 arcsec worst_quadrant_rms=0.828 arcsec SIP_REFIT: selected SIP order 3 SIP_REFIT: order=3 matched=732 robust_rms_before=1.812 arcsec robust_rms_before_corrected=0.784 arcsec robust_rms_after=0.789 arcsec worst_quadrant_rms_before=0.836 worst_quadrant_rms_after=0.828 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.836 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits N_match=732 sigma_overall_arcsec=0.835 sigma_q1_arcsec=0.849 sigma_q2_arcsec=0.807 sigma_q3_arcsec=0.896 sigma_q4_arcsec=0.631 n_q1=215 n_q2=56 n_q3=384 n_q4=77 worst_quadrant_to_overall_ratio=1.072 The image catalog is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits -region wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits to local_wcs_cache/ 'wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits' -> 'local_wcs_cache/wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits' Saving the final (post-refit) wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits to local_wcs_cache/ 'wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits' -> 'local_wcs_cache/wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits' Saving the final (post-refit) wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits to local_wcs_cache/ 'wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits' -> 'local_wcs_cache/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits' Saving the final (post-refit) wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits to local_wcs_cache/ 'wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits' -> 'local_wcs_cache/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits' ################################### # Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above) ref1=Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits sigma_overall=0.469 worst_q_ratio=1.262 ref2=Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits sigma_overall=0.478 worst_q_ratio=1.265 new1=fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits sigma_overall=0.828 worst_q_ratio=1.015 new2=fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits sigma_overall=0.835 worst_q_ratio=1.072 reference average sigma_overall=0.4735 worst_q_ratio=1.2635 warn-on-ratio threshold: 2.0x reference ###################################
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044_astrometric_residuals.png (4869 matched stars from wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.43 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045_astrometric_residuals.png (4866 matched stars from wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.44 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224_astrometric_residuals.png (697 matched stars from wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.64 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225_astrometric_residuals.png (732 matched stars from wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.74 arcsec)
Copying WCS-calibrated images back to input directory Saving fully-calibrated image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits' Saving fully-calibrated image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits' Preparing the HTML report for the field Per-03-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 No candidates found here Prepared the HTML report for the field Per-03-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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits SExtractor catalog cache: saved Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.cat to cache SExtractor catalog cache: saved Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.cat to cache VaST run complete with default.sex.telephoto_lens_vSTL The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Checking WCS cache directory local_wcs_cache Found WCS cache directory local_wcs_cache Creating symlink local_wcs_cache/wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Creating symlink local_wcs_cache/wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Creating symlink local_wcs_cache/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Creating symlink local_wcs_cache/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images Checking WCS cache directory /home/NMW_web_upload/solved_reference_images Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images Plate-solving the images wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits exists and is non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits exists and is non-empty wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits exists and is non-empty wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (1st reference image) verification OK: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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: 04:48:00.727 +45:59:45.06 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_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits (1st new image) verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Image size: 940.8'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis Image center: 04:48:11.158 +45:59:24.30 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:48:00.727 +45:59:45.06 Second-epoch image center 04:48:11.158 +45:59:24.30 Angular distance between the image centers 0.0307 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits (2nd new image) verification OK: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Image size: 940.9'x624.6' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis Image center: 04:48:14.569 +45:59:39.52 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:48:00.727 +45:59:45.06 Second-epoch image center 04:48:14.569 +45:59:39.52 Angular distance between the image centers 0.0401 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 04:48:11.158 +45:59:24.30 Second-epoch second image center 04:48:14.569 +45:59:39.52 Angular distance between the image centers 0.01074 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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits &> /tmp/tmp.TnHENwhgHa Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits &> /tmp/tmp.a6Yng1x6qx Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits &> /tmp/tmp.ry2rpW0zjl Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits &> /tmp/tmp.LjJdlO0UeL Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Calibrating the magnitude scale Found non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat Found non-empty wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits and wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat The reference image (wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits) and catalog (wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat) found 'wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat' -> 'wcsmag.cat' Read 195814 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9096 to 84.6822 deg, Dec +39.9252 to +51.3404 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 59.9096 to 84.6822 deg, Dec 39.9252 to 51.3404 deg Loaded 12199 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): 6231 out of 9378 total matches. Matched with Tycho-2 9378 out of 195814 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.794000 a=0.000000 b=1.000000 c=22.794000 From vast_summary.log: estimated ref. image limiting mag.: -7.33 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.46 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.46
Lightcurve magnitude calibration plot:

Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 195814 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9096 to 84.6822 deg, Dec +39.9252 to +51.3404 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 59.9096 to 84.6822 deg, Dec 39.9252 to 51.3404 deg Loaded 12199 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): 6231 out of 9378 total matches. Matched with Tycho-2 9378 out of 195814 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Forced-photometry filter: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits -> calib.txt_param_ref_wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (aperture=4.4) Read 196080 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 59.9097 to 84.6518 deg, Dec +39.9253 to +51.3374 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 59.9097 to 84.6518 deg, Dec 39.9253 to 51.3374 deg Loaded 12186 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): 6203 out of 9379 total matches. Matched with Tycho-2 9379 out of 196080 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits:

Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Forced-photometry filter: calibrated wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits -> calib.txt_param_ref_wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits (aperture=4.4) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 10 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 1.9 pix Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 1.9 pix Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 2.4 pix fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 2.4 pix fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Limiting magnitude estimates: 15.5 mag. Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 15.5 mag. Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 12.5 mag. fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 12.3 mag. fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits All-image limiting magnitude estimate: 12.3 (SNR ) 12.0 (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.TnHENwhgHa (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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits' -> 'wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS_IMAGE_NAME=wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS-calibrated image found: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits Checking if the catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits alredy exist and is non-empty... Catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits WCS catalog name: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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=38, blended=26966, bad_region=31099, passed=195776 Got 195776 stars (including 140771 good ones) from the SExtractor catalog wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat util/solve_plate_with_UCAC5 got 195776 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 649 to 708 (Dec 39.9 to 51.3) 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: 4870 matched stars entering correct_measured_positions(), 4870 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 171776 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4906 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 171776 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Accuracy estimation diagnostic: 4870 matched stars entering correct_measured_positions(), 171776 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.45" Excluding outliers - 4870 stars left (next iteration limit 5357) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits N_match=4870 sigma_overall_arcsec=0.451 sigma_q1_arcsec=0.539 sigma_q2_arcsec=0.427 sigma_q3_arcsec=0.420 sigma_q4_arcsec=0.341 n_q1=1409 n_q2=639 n_q3=1931 n_q4=891 worst_quadrant_to_overall_ratio=1.196 The image catalog is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits -region wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.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.a6Yng1x6qx (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/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits' -> 'wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS_IMAGE_NAME=wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS-calibrated image found: wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits Checking if the catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits alredy exist and is non-empty... Catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat corresponding to the image wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits WCS catalog name: wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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=50, blended=27081, bad_region=31072, passed=196030 Got 196030 stars (including 140952 good ones) from the SExtractor catalog wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat util/solve_plate_with_UCAC5 got 196030 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 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4903 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4865 matched stars entering correct_measured_positions(), 4865 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4865 matched stars entering correct_measured_positions(), 172118 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 649 to 708 (Dec 39.9 to 51.3) Done reading UCAC5 zone files... Matched 4903 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4865 matched stars entering correct_measured_positions(), 172118 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Accuracy estimation diagnostic: 4865 matched stars entering correct_measured_positions(), 172118 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.46" Excluding outliers - 4865 stars left (next iteration limit 5351) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits N_match=4865 sigma_overall_arcsec=0.448 sigma_q1_arcsec=0.569 sigma_q2_arcsec=0.430 sigma_q3_arcsec=0.415 sigma_q4_arcsec=0.337 n_q1=1402 n_q2=638 n_q3=1931 n_q4=894 worst_quadrant_to_overall_ratio=1.270 The image catalog is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits -region wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.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.ry2rpW0zjl (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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS_IMAGE_NAME=wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS-calibrated image found: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Checking if the catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits alredy exist and is non-empty... Catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits WCS catalog name: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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=29, blended=539, bad_region=1900, passed=14469 Got 14469 stars (including 12054 good ones) from the SExtractor catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat util/solve_plate_with_UCAC5 got 14469 stars from the SExtractor catalog Updated FoV from the plate-solved image: 940.8' Seting catalog search parameters based on the expected field of view 940.8 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013067 (47.0 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010453 (37.6 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.3) Done reading UCAC5 zone files... Matched 4914 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 4866 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.95" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 12997 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.93" 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 650 to 708 (Dec 40.2 to 51.3) Done reading UCAC5 zone files... Matched 4913 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 12997 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.95" Accuracy estimation diagnostic: 4866 matched stars entering correct_measured_positions(), 12997 with non-zero local correction accuracy Estimated accuracy of the plate solution: 1.00" Excluding outliers - 4866 stars left (next iteration limit 5352) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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=4866 robust_rms=5.112 arcsec worst_quadrant_rms=16.339 arcsec SIP_REFIT: SIP order 3 trial: matched=4866 robust_rms=1.030 arcsec worst_quadrant_rms=1.153 arcsec SIP_REFIT: SIP order 5 trial: matched=4866 robust_rms=0.924 arcsec worst_quadrant_rms=1.128 arcsec SIP_REFIT: selected SIP order 3 SIP_REFIT: order=3 matched=4866 robust_rms_before=1.046 arcsec robust_rms_before_corrected=1.004 arcsec robust_rms_after=1.030 arcsec worst_quadrant_rms_before=1.163 worst_quadrant_rms_after=1.153 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 1.163 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits N_match=4866 sigma_overall_arcsec=0.949 sigma_q1_arcsec=0.936 sigma_q2_arcsec=0.814 sigma_q3_arcsec=1.103 sigma_q4_arcsec=0.750 n_q1=1590 n_q2=545 n_q3=2022 n_q4=709 worst_quadrant_to_overall_ratio=1.163 The image catalog is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits -region wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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.LjJdlO0UeL (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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS_IMAGE_NAME=wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS-calibrated image found: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Checking if the catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits alredy exist and is non-empty... Catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat corresponding to the image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits WCS catalog name: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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=31, blended=468, bad_region=1776, passed=14138 Got 14138 stars (including 11914 good ones) from the SExtractor catalog wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat util/solve_plate_with_UCAC5 got 14138 stars from the SExtractor catalog Updated FoV from the plate-solved image: 940.9' Seting catalog search parameters based on the expected field of view 940.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013068 (47.0 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010454 (37.6 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 650 to 708 (Dec 40.2 to 51.3) Done reading UCAC5 zone files... Matched 4923 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 4873 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.96" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 12729 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.93" 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 650 to 708 (Dec 40.2 to 51.3) Done reading UCAC5 zone files... Matched 4922 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 12729 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.95" Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 12729 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.99" Excluding outliers - 4873 stars left (next iteration limit 5360) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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=4873 robust_rms=5.026 arcsec worst_quadrant_rms=19.266 arcsec SIP_REFIT: SIP order 3 trial: matched=4873 robust_rms=1.035 arcsec worst_quadrant_rms=1.098 arcsec SIP_REFIT: SIP order 5 trial: matched=4873 robust_rms=0.911 arcsec worst_quadrant_rms=1.027 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=4873 robust_rms_before=1.958 arcsec robust_rms_before_corrected=0.982 arcsec robust_rms_after=0.911 arcsec worst_quadrant_rms_before=1.118 worst_quadrant_rms_after=1.027 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 1.118 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits N_match=4873 sigma_overall_arcsec=0.929 sigma_q1_arcsec=0.925 sigma_q2_arcsec=0.696 sigma_q3_arcsec=1.061 sigma_q4_arcsec=0.765 n_q1=1640 n_q2=565 n_q3=2085 n_q4=583 worst_quadrant_to_overall_ratio=1.141 The image catalog is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits -region wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-03_20.00sec_-0.00C_LIGHT_0224.fits Saving fully-calibrated image wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.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_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/wcs_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits Preparing the HTML report for the field Per-03-Q2b1x1 with default.sex.telephoto_lens_vSTL Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits at 04:36:09.24 +43:30:45.5: 12.92 +/- 0.02 detection Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-37-33_20.00sec_-15.00C_LIGHT_0044.fits at 04:21:35.12 +49:37:16.3: 13.51 +/- 0.04 detection Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits at 04:21:35.12 +49:37:16.3: 13.51 +/- 0.04 detection Forced photometry on wcs_Per-03-Q2b1x1_2026-02-21_20-38-19_20.00sec_-15.00C_LIGHT_0045.fits at 04:36:09.24 +43:30:45.5: 12.97 +/- 0.02 detection Forced photometry reference-image weighted average: 13.51 +/- 0.03 Forced photometry reference-image weighted average: 12.94 +/- 0.02 Forced photometry filter KEPT candidate at 04:21:35.12 +49:37:16.3: ref_mag=13.51 +/- 0.03 new_mean_mag=12.4438 delta=1.07 (need > 0.90) Forced photometry filter KEPT candidate at 04:36:09.24 +43:30:45.5: ref_mag=12.94 +/- 0.02 new_mean_mag=11.9213 delta=1.02 (need > 0.90) Adding exclusion_list_local.txt__out138324.dat to exclusion_list_local.txt Adding exclusion_list_local.txt__out25749.dat to exclusion_list_local.txt make_report_in_HTML.sh Phase 1 (network queries): 5s 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: 2s xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 224595_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 224595_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 2   2026 09 03.24522    2461286.74522    12.04    04:43:32.03 +49:59:18.8   4404 5627   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:43:31.96 +49:59:19.3 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 21640_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 21640_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    7.11    04:43:21.59 +49:58:21.2   4387 5618   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:43:21.62 +49:58:21.4 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 50556_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 50556_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    7.07    04:41:24.26 +48:17:59.9   4145 4614   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:41:24.31 +48:17:59.8 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 25749_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 Preparing report for the candidate 25749_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 138324_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 Preparing report for the candidate 138324_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 95776_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 95776_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    11.43    04:32:36.93 +45:40:13.6   3138 3086   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:32:36.90 +45:40:14.0 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 41839_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 41839_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    7.04    04:51:09.14 +48:44:21.9   5129 4846   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:51:09.16 +48:44:22.3 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 143340_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 143340_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    7.09    04:42:54.42 +43:21:56.1   4156 1629   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:42:54.37 +43:21:55.2 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 131779_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 131779_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    6.59    05:01:57.88 +43:49:25.0   6242 1875   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 05:01:57.85 +43:49:25.5 in the exclusion list exclusion_list_bbsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 146564_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 The candidate 146564_fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225 did not pass the final checks Discovery image 3   2026 09 03.24522    2461286.74522    7.16    04:33:25.05 +43:03:51.4   3101 1506   /data_ssd/NMW-TexasTech/workdir//img_2026-09-03_CI_Per-03-Q2b1x1_043945_TTUQ2b1x1_222440_N0ueuyb6/fd_Per-03-Q2b1x1_2026-09-03_00-52-56_20.00sec_-0.00C_LIGHT_0225.fits **** FOUND 04:33:25.06 +43:03:51.8 in the exclusion list exclusion_list_bsc.txt **** make_report_in_HTML.sh Phase 2 (HTML assembly): 0s make_report_in_HTML.sh TOTAL: 7s Prepared the HTML report for the field Per-03-Q2b1x1 with default.sex.telephoto_lens_vSTL *------ done with default.sex.telephoto_lens_vSTL ------* #### The local exclusion list is exclusion_list_local.txt #### 04:36:09.24 +43:30:45.5 04:21:35.12 +49:37:16.3 ########### Completed Per-03-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 #### 04:21:35.12 +49:37:16.3 04:36:09.24 +43:30:45.5 ################################################################################### 04:21:35.12 +49:37:16.3 -- not an asteroid (will add it to exclusion list) 04:36:09.24 +43:30:45.5 -- not an asteroid (will add it to exclusion list) renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt' 04:21:35.12 +49:37:16.3 -- does not seem to be a hot pixel (will add it to exclusion list) 04:36:09.24 +43:30:45.5 -- does not seem to be a hot pixel (will add it to exclusion list) 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) 04:21:35.12 +49:37:16.3 -- a known variable star 04:36:09.24 +43:30:45.5 -- a known variable star Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars). ################################################################################### 2 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 #### Adding the following to the exclusion list #### 04:21:35.12 +49:37:16.3 04:36:09.24 +43:30:45.5 #################################################### The observatory MPC code is V36 ############################################################ Positions of planets computed with util/planet_finder/main.py for JD(UT)2461286.74459992 -observatory V36 11:12:33.30 +06:38:22.8 Mercury (-1.2mag) 13:25:25.79 -12:55:53.9 Venus (-4.6mag) 07:02:58.23 +23:13:03.8 Mars (1.2mag) 09:05:40.94 +17:11:40.2 Jupiter (-1.8mag) 00:52:37.87 +02:45:04.1 Saturn (0.5mag) 04:13:36.48 +21:01:47.0 Uranus (5.7mag) 00:14:07.37 -00:00:40.7 Neptune (7.7mag) 20:25:53.01 -23:38:38.2 Pluto (14.5mag) 03:33:34.94 +23:56:10.9 Moon (-10.7mag) -rw-r--r-- 1 apache apache 363 Sep 3 04:42 planets.txt ############################################################ Positions of selected moons from JPL HORIZONS for JD(UT)2461286.74459992: 09:05:47.29 +17:11:10.5 Io (6.2mag) 09:05:45.06 +17:11:21.2 Europa (6.3mag) 09:05:29.45 +17:12:38.6 Ganymede (5.7mag) 09:05:30.85 +17:12:27.8 Callisto (6.9mag) 09:03:20.03 +17:26:17.0 Himalia (15.7mag) 09:05:45.40 +17:11:20.0 Thebe (16.6mag) 09:02:59.15 +17:20:32.8 Elara (17.7mag) 09:09:39.69 +16:40:31.6 Pasiphae (17.9mag) 09:07:03.53 +17:28:20.8 Carme (19.0mag) 00:52:49.66 +02:44:56.3 Titan (8.3mag) 00:52:33.63 +02:44:49.4 Rhea (9.6mag) 00:53:02.74 +02:47:46.4 Iapetus (11.0mag) 00:52:37.93 +02:44:20.5 Hyperion (14.3mag) 00:51:28.97 +02:35:11.9 Phoebe (16.4mag) -rw-r--r-- 1 apache apache 568 Sep 3 04:42 moons.txt ############################################################ Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461286.74459992: 21:33:19.57 -03:09:53.6 JWST 11:05:36.80 +45:40:43.0 Chandra 10:13:09.78 -56:43:34.7 XMM-Newton -rw-r--r-- 1 apache apache 96 Sep 3 04:42 spacecraft.txt ############################################################ Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461286.74459992 -observatory V36 03:37:49.39 +19:08:29.8 17.4mag P/1996 R2 (Lagerkvist) 18:01:39.42 -34:17:04.5 14.3mag P/2010 H2 (Vales) 07:16:20.32 -70:04:55.3 17.3mag C/2014 UN271 (Bernardinelli-Bernstein) 06:15:10.69 +33:35:47.8 17.7mag C/2017 K2 (PANSTARRS) 04:45:03.36 +44:50:19.7 15.6mag P/2021 N1 (ZTF) 04:45:03.40 +44:50:19.6 15.6mag P/2021 N1 (ZTF) 22:16:45.91 +29:08:56.2 17.4mag C/2022 E2 (ATLAS) 07:07:01.32 +26:03:20.2 16.8mag C/2022 N2 (PANSTARRS) 10:45:45.20 +27:22:33.1 17.0mag C/2022 QE78 (ATLAS) 09:46:04.59 +05:15:15.0 18.0mag C/2022 R6 (PANSTARRS) 15:30:48.07 -15:17:33.2 14.8mag C/2023 R1 (PANSTARRS) 08:34:45.43 +32:39:02.2 15.7mag C/2024 E1 (Wierzchos) 15:06:09.42 +15:22:14.0 17.9mag C/2024 G6 (ATLAS) 18:36:23.27 +43:18:42.8 13.7mag C/2024 J3 (ATLAS) 20:31:50.24 +49:29:13.0 17.4mag C/2024 R4 (PANSTARRS) 05:33:21.02 -12:58:37.9 15.2mag C/2024 T5 (ATLAS) 07:10:07.33 +19:20:40.9 17.8mag C/2025 J1 (Borisov) 11:11:31.43 +19:04:53.9 16.9mag C/2025 V2 (Rankin) 13:16:21.00 +00:26:24.4 16.8mag C/2025 Y1 (ATLAS) 16:31:30.32 +74:40:16.8 16.2mag C/2026 A2 (Bok) 03:07:32.06 +46:14:24.0 17.4mag C/2026 B2 (Sun-Gao) 12:09:32.40 +10:56:57.1 17.5mag A/2026 E1 22:22:38.70 -34:39:23.6 13.3mag 10P/Tempel 11:45:28.31 -05:10:01.9 16.3mag 29P/Schwassmann-Wachmann 12:00:24.39 -03:48:24.0 17.6mag 63P/Wild 00:46:47.57 -06:48:40.8 15.4mag 65P/Gunn 06:31:21.79 +19:32:46.3 17.1mag 78P/Gehrels 03:16:44.35 +14:55:46.3 16.7mag 88P/Howell 05:24:54.89 +27:04:12.3 17.6mag 112P/Urata-Niijima 07:19:37.67 +25:48:47.3 17.9mag 114P/Wiseman-Skiff 10:18:47.84 +21:43:01.3 14.8mag 123P/West-Hartley 12:37:45.19 -19:54:48.1 17.4mag 124P/Mrkos 06:12:24.43 +20:45:27.6 15.9mag 128P/Shoemaker-Holt 23:54:24.27 +02:35:03.4 17.3mag 139P/Vaisala-Oterma 02:45:47.31 -17:59:50.2 15.4mag 161P/Hartley-IRAS 09:47:39.67 +16:39:24.9 11.9mag 169P/NEAT 03:20:41.02 +08:46:54.8 14.4mag 220P/McNaught 04:36:58.85 +35:00:59.7 15.2mag 260P/McNaught 08:20:52.14 +36:06:40.3 17.3mag 295P/LINEAR 15:22:41.65 +00:12:27.5 17.9mag 391P/Kowalski 09:24:15.73 +17:03:29.3 17.9mag 450P/LONEOS -rw-r--r-- 1 apache apache 2.0K Sep 3 04:42 comets.txt ############################################################ List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html : 19:45:06.20 +18:22:48.80 V488 2026-08-30.13 9.37 18:25:12.74 -22:25:28.60 V8055 2026-08-30.22 10.89 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 23:47:50.89 +49:28:51.30 SN2026wjs 2026-08-9.24 17.09 16:03:20.92 +17:43:23.70 AT2026xau 2026-08-9.3 17.71 01:10:22.05 -09:34:08.50 SN2026weo 2026-08-7.46 15.76 00:56:54.35 -35:55:29.40 AT2026wdy 2026-08-5.05 16.08 22:08:07.63 -53:03:58.90 AT2026wek 2026-08-3.82 17.17 14:51:51.34 +66:13:24.60 ASASSN-26ev 2026-08-2.15 14.02 12:06:50.79 -36:16:06.20 SN2026wgm 2026-08-1.73 15.61 16:56:36.90 -59:29:26.00 ASASSN-26er 2026-07-25.82 15.09 01:21:27.83 -10:37:05.00 SN2026vbh 2026-07-25.61 15.97 21:17:31.59 +22:25:50.90 ASASSN-26eq 2026-07-24.37 15.13 18:53:36.89 +16:56:43.60 ASASSN-26ep 2026-07-23.47 -4.06 12:18:47.98 -30:48:47.50 ASASSN-26et 2026-07-22.76 13.98 13:00:47.82 +15:42:17.60 SN2026uwk 2026-07-21.75 16.38 18:52:31.11 -32:28:00.90 ASASSN-26en 2026-07-21.77 14.63 14:42:58.01 -62:32:59.10 ASASSN-26es 2026-07-20.79 15.36 20:12:45.57 -32:53:13.00 ASASSN-26em 2026-07-20.94 16.83 18:54:24.33 -46:11:51.70 ASASSN-26eu 2026-07-20.93 14.86 03:18:56.99 -80:55:10.40 AT2026ugi 2026-07-20.03 17.12 18:43:58.40 +24:22:41.80 ASASSN-26eo 2026-07-19.36 16.16 04:50:01.03 -02:22:33.80 ASASSN-26ej 2026-07-16.17 17.02 18:34:55.28 -31:41:00.90 ASASSN-26ek 2026-07-16.24 15.73 17:07:43.61 -44:21:53.50 ASASSN-26el 2026-07-15.86 16.01 14:45:08.35 +24:13:12.30 ASASSN-26ei 2026-07-16.17 16.46 10:00:46.44 -32:36:31.10 AT 2023mhb 2026-07-14.73 16.67 14:39:37.45 -11:22:36.20 AT 2026unl 2026-07-15.27 17.11 10:49:42.57 -11:25:55.80 ASASSN-26eh 2026-07-14.72 16.58 19:33:53.06 -07:15:00.80 ASASSN-22le 2026-07-14.15 15.5 02:45:40.52 -27:55:30.30 ASASSN-26ef 2026-07-12.35 15.86 23:26:43.80 +04:42:39.70 SN 2026qtn 2026-07-12.22 16.47 02:19:17.26 +28:57:15.40 ASASSN-26ec 2026-07-11.53 2.78 18:31:15.56 -05:34:31.50 AT2026stb 2026-07-11.28 -1.29 13:36:08.24 +23:29:05.00 AT2026pjf 2026-07-10.18 -0.72 17:33:39.82 +04:22:36.70 SN2026pir 2026-07-9.86 -0.66 11:21:41.26 -50:33:36.30 ASASSN-26ed 2026-07-8.8 -1.3 23:41:42.11 +26:29:49.10 AT2026qil 2026-07-9.3 16.15 20:21:30.50 -32:03:40.10 ASASSN-26ee 2026-07-7.22 15.53 19:37:44.09 -05:35:42.80 AT2026ryu 2026-07-7.17 14.88 11:06:55.46 -04:07:04.50 AT2026qqg 2026-07-5.01 16.82 19:07:23.69 -74:13:37.30 AT2026qly 2026-07-5.02 17.31 17:57:43.80 +27:18:40.10 ASASSN-26ea 2026-07-5.07 16.67 19:59:01.43 -32:07:34.30 ASASSN-26eb 2026-07-4.97 15.52 18:46:50.35 -57:44:13.20 SN 2026qqp 2026-07-5.03 -0.92 19:17:31.69 -39:55:29.90 ASASSN-26dz 2026-07-5.14 15.91 19:14:31.37 +12:03:52.90 AT 2026rdg 2026-07-3.43 11.81 04:05:50.09 -70:24:34.40 AT 2026qpr 2026-06-30.4 15.96 13:45:37.49 -05:59:35.80 SN 2026pub 2026-06-30.09 16.01 16:41:15.63 +39:17:14.70 SN 2026pel 2026-06-26.38 16.07 10:14:40.19 -35:38:21.30 ASASSN-26dy 2026-06-25.99 15.63 14:47:21.56 -40:15:51.30 ASASSN-26dv 2026-06-23.03 14.62 13:38:49.79 -77:21:06.70 ASASSN-26dw 2026-06-23.04 16.09 00:59:27.90 +33:08:13.20 SN 2026mke 2026-06-22.39 17.13 11:10:44.73 -30:20:45.50 SN 2026nmv 2026-06-22.06 16.56 21:36:15.68 -21:19:12.50 AT2026oxh 2026-06-22.15 17.14 17:31:38.38 -56:05:51.90 ASASSN-26dx 2026-06-22.02 14.72 14:10:13.44 -38:46:46.10 AT2026pvk 2026-06-22.06 16.53 20:56:47.23 -18:31:05.20 AT2026plb 2026-06-21.31 16.4 15:44:29.68 +21:00:59.30 SN2026ore 2026-06-21.29 17.57 23:50:05.98 -14:01:41.30 AT2026oxl 2026-06-21.52 17.64 17:36:54.73 -18:10:04.20 AT2026ouj 2026-06-20.92 15.15 00:34:04.08 -30:22:09.20 AT2026ntk 2026-06-18.09 17.34 20:49:13.39 +25:17:59.20 ASASSN-26du 2026-06-15.39 15.93 23:09:30.84 +32:40:42.00 SN2026oxc 2026-06-14.35 16.83 02:02:26.78 +32:04:21.30 AT2026ovz 2026-06-14.59 15.39 21:26:28.11 -72:31:19.50 AT2026nwc 2026-06-11 17.05 17:54:57.33 +26:32:34.20 SN 2026odc 2026-06-11.23 17.62 13:55:59.94 +17:30:37.20 SN 2026nyq 2026-06-11.1 16.24 00:50:45.14 -71:38:36.90 ASASSN-26dt 2026-06-11.13 10.22 14:42:19.73 +19:11:35.60 SN2026nyp 2026-06-10.3 16.32 12:23:23.92 +12:56:43.50 SN2026mta 2026-06-8.29 16.69 12:30:18.51 +47:12:33.20 SN2026oao 2026-06-9.32 17.02 10:51:05.21 -42:28:56.60 AT2026nvf 2026-06-8.12 16.75 13:50:22.48 -07:35:00.00 SN2026npn 2026-06-8.02 17.58 00:56:07.17 +43:01:43.20 ASASSN-26dq 2026-06-7.43 13.58 01:07:49.46 +41:59:43.70 SN 2026obc 2026-06-7.43 15.15 21:11:25.22 +14:14:31.90 ASASSN-26dr 2026-06-7.24 16.24 06:21:27.06 -65:16:42.00 ASASSN-26ds 2026-06-2.97 15.02 20:07:38.15 -21:07:05.40 SN2026mho 2026-05-25.18 -1.12 11:29:42.55 +79:01:03.10 AT2026min 2026-05-24.21 16.63 11:44:33.11 -68:48:32.90 ASASSN-26no 2026-05-24.03 8.35 19:00:42.82 -48:31:01.60 ASASSN-26dp 2026-05-22.31 -3.28 14:23:56.59 -58:37:47.40 ASASSN-26dn 2026-05-20.01 14.59 11:24:54.06 +47:57:01.60 AT2026nma 2026-05-20.29 15.46 21:27:08.58 +33:24:38.10 AT2026lli 2026-05-19.34 15.86 00:31:01.41 -13:38:51.70 AT2026nad 2026-05-19.39 15.34 -rw-r--r-- 1 apache apache 5.7K Sep 3 04:42 asassn_transients_list.txt ############################################################ Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html : 02:19:17.36 +28:57:15.8 TCP J02191736+2857158 2026-07-12.3549 12.5mag 00:44:56.43 +41:57:41.6 PNV J00445643+4157416 2026-07-13.8026 17.98Cmag 00:42:55.36 +41:17:27.0 PNV J00425536+4117270 2026-07-20.1813 17.7mag 20:35:43.64 +61:31:32.9 TCP J20354364+6131329 2026-07-20.5443 14.4mag 21:17:31.48 +22:25:51.0 TCP J21173148+2225510 2026-07-23.5577 14.8mag 00:41:24.04 +40:49:02.8 PNV J00412404+4049028 2026-07-25.0157 18.7mag 00:43:04.26 +41:02:28.6 PNV J00430426+4102286 2026-07-26.1512 20mag 14:51:51.40 +66:13:24.0 TCP J14515140+6613240 2026-07-29.2561 13.5mag 00:43:06.15 +41:22:08.2 PNV J00430615+4122082 2026-07-30.0085 19.4mag 00:41:33.23 +41:10:12.2 PNV J00413323+4110122 2026-08-02.8913 17.1mag 05:21:07.63 +23:38:19.4 TCP J05210763+2338194 2026-08-06.4109 11.2mag 22:57:17.96 +47:07:41.8 TCP J22571796+4707418 2026-08-09.3289 14.3mag 09:13:38.17 +76:28:18.1 PSN J09133817+7628181 2026-08-09.8037 15.4mag 00:43:17.29 +41:26:48.6 PNV J00431729+4126486 2026-08-14.0920 16.8mag 00:42:52.82 +41:10:58.6 PNV J00425282+4110586 2026-08-17.7723 19.9mag 00:42:52.83 +41:10:59.6 PNV J00425283+4110596 2026-08-18.6119 19.3mag 18:25:12.76 -22:25:29.3 TCP J18251276-2225293 2026-08-19.1062 9.4mag 18:03:09.04 +12:18:14.0 TCP J18030904+1218140 2026-08-19.5199 14.9mag 19:45:06.48 +18:22:42.2 PNV J19450648+1822422 2026-08-25.1278 9.0mag 00:42:54.65 +41:22:59.3 PNV J00425465+4122593 2026-08-25.4712 18.9mag -rw-r--r-- 1 apache apache 190K Sep 3 04:42 tocp_transients_list.txt ############################################################ Truncated list of recent TNS transients from https://www.wis-tns.org/ : 02:41:31.713 -05:42:07.66 AT 2026yej 2026-08-07.74 19.99 02:37:50.952 -34:56:23.02 AT 2026yei 2026-08-07.75 20.24 00:49:13.568 +35:33:39.77 AT 2026yeh 2026-08-07.46 18.6935 00:51:29.158 +58:43:46.50 AT 2026yeg 2026-06-27.59 18.302 23:39:55.450 +21:19:37.52 SN 2026yef 2026-08-07.52 18.408 02:33:45.113 +13:18:25.70 SN 2026yee 2026-08-07.60 19.123 23:58:58.059 +31:26:23.87 AT 2026yed 2026-08-07.54 19.075 00:30:10.856 +35:23:23.27 SN 2026yec 2026-08-07.55 18.551 21:31:13.865 -31:52:55.42 AT 2026yeb 2026-08-06.61 20.01 22:05:14.663 -13:18:47.83 AT 2026yea 2026-08-04.51 20.14 20:28:43.809 -29:28:49.69 AT 2026ydz 2026-08-03.55 19.71 22:22:26.994 -02:53:12.42 SN 2026ydy 2026-08-06.36 20.1587 01:08:44.199 +44:24:53.07 AT 2026ydx 2026-08-03.37 19.6807 00:16:28.015 +46:52:44.67 AT 2026ydw 2026-08-03.38 19.8888 01:57:01.783 +28:37:00.66 AT 2026ydv 2026-08-03.43 20.3644 07:03:59.165 +50:34:37.94 AT 2026ydu 2026-08-05.50 19.1479 14:59:48.320 +41:11:10.54 AT 2026ydt 2026-08-03.62 19.92 15:30:50.100 +44:50:29.55 AT 2026yds 2026-08-03.62 20.66 21:51:45.360 +12:57:42.97 AT 2026ydr 2026-08-02.66 19.56 15:18:51.860 +43:23:37.95 AT 2026ydq 2026-07-22.66 21.65 -rw-r--r-- 1 apache apache 88K Sep 3 04:42 tns_transients_list.txt

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