fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits
fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits
util/transients/transient_factory_test31.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG
| Date (UTC) | JD(UTC) | mag. | R.A. & Dec.(J2000) | X & Y (pix) | Image | |
|---|---|---|---|---|---|---|
| Discovery image 1 | 2026 08 19.37428 | 2461271.87428 | 13.55 | 04:41:35.44 +17:07:43.7 | 6977 5078 | /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits |
| Discovery image 2 | 2026 08 19.37496 | 2461271.87496 | 13.72 | 04:41:35.52 +17:07:43.4 | 6984 5080 | /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits |
Mean magnitude and position on the discovery images:
2026 08 19.3746 2461271.8746 13.63 04:41:35.48 +17:07:43.6
181.33444 -18.79623 galactic Tau Second-epoch detections are separated by 1.3" and 6.9 pix
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.
53 Kalypso -0 -0 0 13.6 -0 0
Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:41:35.48 +17:07:43.6: 16.10 +/- 99.00 upperlimit
Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:41:35.48 +17:07:43.6: 16.09 +/- 99.00 upperlimit
Check this position in TNS. Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs. WISE atlas Aladin Lite SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.
| Date (UTC) | JD(UTC) | mag. | R.A. & Dec.(J2000) | X & Y (pix) | Image | |
|---|---|---|---|---|---|---|
| Discovery image 1 | 2026 08 19.37428 | 2461271.87428 | 14.19 | 04:39:55.69 +16:18:42.8 | 6735 4581 | /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits |
| Discovery image 2 | 2026 08 19.37496 | 2461271.87496 | 14.21 | 04:39:55.68 +16:18:42.1 | 6741 4583 | /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits |
Mean magnitude and position on the discovery images:
2026 08 19.3746 2461271.8746 14.20 04:39:55.68 +16:18:42.5
181.76403 -19.60954 galactic Tau Second-epoch detections are separated by 0.7" and 6.7 pix
The object was not found in VSX
The object was not found in ASASSN-V
The object was found in astcheck.
670 Ottegebe -0 0 0 14.3 0 0
Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:39:55.68 +16:18:42.5: 16.27 +/- 99.00 upperlimit
Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:39:55.68 +16:18:42.5: 16.18 +/- 99.00 upperlimit
Check this position in TNS. Manually check the ASAS-SN list of transients!
Search this object in SIMBAD.
Search this object in VizieR catalogs. WISE atlas Aladin Lite SNAD ZTF viewer
Online MPChecker may fail to identify bright comets! Please manually check the Seiichi Yoshida's and Gideon van Buitenen's pages.
######## 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: Tau-06-Q2b1x1 ####################################### ########### Starting Tau-06-Q2b1x1 ########### Processing Tau-06-Q2b1x1 WARNING: server tau is low on disk space, only 74542 MB free at /data_ssd/NMW-TexasTech/workdir WARNING: server tau is low on disk space, only 74542 MB free at . Checking input images (2 new) REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Small preview (one of the new images):
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.png' -> 'transient_report/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits_preview.png'
Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits
renamed 'Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.png' -> 'transient_report/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits_preview.png'
Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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= 559.8035 INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 711.9893 INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1373.0703 INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 650.0506 INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1370.3178 INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 650.0868 ---------------------------------------------- INFO: ref_to_second_epoch_img_mean_ratio= 2.45277 INFO: SECOND_EPOCH__SD_ratio= 0.000 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 = 25.0499992370605 / [degC] Focuser temperature AMBTEMP = 31.2 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Header: 74 keys total, 33 keys left Record 0: "" status=0 Record 1: "SIMPLE = T / C# FITS" status=0 Record 2: "BITPIX = 16" status=0 Record 3: "NAXIS = 2 / Dimensionality" status=0 Record 4: "NAXIS1 = 9576" status=0 Record 5: "NAXIS2 = 6388" status=0 Record 6: "BZERO = 32768" status=0 Record 7: "EXTEND = T / Extensions are permitted" status=0 Record 8: "IMAGETYP= 'LIGHT' / Type of exposure" status=0 Record 9: "EXPOSURE= 20.0 / [s] Exposure duration" status=0 Record 10: "EXPTIME = 20.0 / [s] Exposure duration" status=0 Record 11: "DATE-LOC= '2026-08-19T03:58:47.7044157' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-08-19T08:58:47.7044157' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61271.3741632407 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-08-19T08:58:57.6105567' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61271.3742778935 / 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 = 66.6651598785975 / [deg] RA of telescope" status=0 Record 32: "DEC = 13.9995206446008 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 27.1775 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 90.8358333333333 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 2.18140298138675 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Tau-06' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 26 40' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+14 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 = 20455 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20455 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 25.0499992370605 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 25.0499992370605 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 7.6 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 23.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 900.91 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 31.2 / [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 = 6.100488 / [kph] Wind speed" status=0 Record 62: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0 Record 63: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0 Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0 Record 65: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0 Record 66: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0 Record 67: "QHY_LP = 85000.0 / [ns] linePeriod" status=0 Record 68: "GPS_LP = 85000.0 / [ns] linePeriod" status=0 Record 69: "QHY_FP = 20000160.0 / [us] framePeriod" status=0 Record 70: "QHY_CPL = 6120.0 / clocksPerLine" status=0 Record 71: "QHY_LPF = 235295.0 / linesPerFrame" status=0 Record 72: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0 Record 73: "QHY_LEM = T / isLongExposureMode" status=0 Record 74: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0 Allocating memory for image, dark and result arrays... Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/d_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits :) Spent 0.704270 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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/d_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= 0.0 / [degC] CCD temperature setpoint CCD-TEMP= -0.0 / [degC] CCD temperature FOCTEMP = 25.1700000762939 / [degC] Focuser temperature AMBTEMP = 31.2 / [degC] Ambient air temperature Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Header: 74 keys total, 33 keys left Record 0: "" status=0 Record 1: "SIMPLE = T / C# FITS" status=0 Record 2: "BITPIX = 16" status=0 Record 3: "NAXIS = 2 / Dimensionality" status=0 Record 4: "NAXIS1 = 9576" status=0 Record 5: "NAXIS2 = 6388" status=0 Record 6: "BZERO = 32768" status=0 Record 7: "EXTEND = T / Extensions are permitted" status=0 Record 8: "IMAGETYP= 'LIGHT' / Type of exposure" status=0 Record 9: "EXPOSURE= 20.0 / [s] Exposure duration" status=0 Record 10: "EXPTIME = 20.0 / [s] Exposure duration" status=0 Record 11: "DATE-LOC= '2026-08-19T03:59:46.6891745' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-08-19T08:59:46.6891745' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61271.3748459374 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-08-19T08:59:56.5923676' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61271.3749605557 / 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 = 66.6651597846977 / [deg] RA of telescope" status=0 Record 32: "DEC = 13.9995206342199 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 27.3863888888889 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 90.9769444444444 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 2.16618098776721 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'West' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1009.5 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.7482925 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958319 / [deg] Observation site longitude" status=0 Record 40: "OBSERVER= 'Sokolovsky' / Observer name" status=0 Record 41: "OBSERVAT= 'TTU Skyview' / Observatory name" status=0 Record 42: "SITENAME= '' / Observatory site name" status=0 Record 43: "FWHEEL = 'Simulator' / Filter Wheel name" status=0 Record 44: "FILTER = 'CV' / Active filter name" status=0 Record 45: "OBJECT = 'Tau-06' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '04 26 40' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+14 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 = 20455 / [step] Focuser position" status=0 Record 51: "FOCUSPOS= 20455 / [step] Focuser position" status=0 Record 52: "FOCUSSZ = 0.0 / [um] Focuser step size" status=0 Record 53: "FOCTEMP = 25.1700000762939 / [degC] Focuser temperature" status=0 Record 54: "FOCUSTEM= 25.1700000762939 / [degC] Focuser temperature" status=0 Record 55: "DEWPOINT= 7.6 / [degC] Dew point" status=0 Record 56: "HUMIDITY= 23.0 / [percent] Relative humidity" status=0 Record 57: "PRESSURE= 900.91 / [hPa] Air pressure" status=0 Record 58: "AMBTEMP = 31.2 / [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 = 6.100488 / [kph] Wind speed" status=0 Record 62: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0 Record 63: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0 Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0 Record 65: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0 Record 66: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0 Record 67: "QHY_LP = 85000.0 / [ns] linePeriod" status=0 Record 68: "GPS_LP = 85000.0 / [ns] linePeriod" status=0 Record 69: "QHY_FP = 20000160.0 / [us] framePeriod" status=0 Record 70: "QHY_CPL = 6120.0 / clocksPerLine" status=0 Record 71: "QHY_LPF = 235295.0 / linesPerFrame" status=0 Record 72: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0 Record 73: "QHY_LEM = T / isLongExposureMode" status=0 Record 74: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0 Allocating memory for image, dark and result arrays... Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits 9576 6388 16 bitpix SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/d_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits :) Spent 0.627868 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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/d_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Dark frame used to calibrate the second-epoch images:
Flat field used to calibrate the second-epoch images:
after the calibration attempt: SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Previews of the CALIBRATED second-epoch images:
fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits
fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits
Updating neverexclude_list.txt '/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt' Choosing bad regions list '/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst' wait *------ default.sex.telephoto_lens_onlybrightstars_v1 ------* 'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex' Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1 ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits SExtractor catalog cache: saved Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.cat to cache SExtractor catalog cache: saved Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.cat to cache VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1 The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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: 2461271.87427898 Re-using ../asassn_transients_list.txt '../asassn_transients_list.txt' -> 'asassn_transients_list.txt' Re-using ../tocp_transients_list.txt '../tocp_transients_list.txt' -> 'tocp_transients_list.txt' Re-using ../tns_transients_list.txt '../tns_transients_list.txt' -> 'tns_transients_list.txt' Plate-solving the images wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits exists and is non-empty wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits exists and is non-empty wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits exists and is non-empty wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (1st reference image) verification OK: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Image size: 941.6'x627.0' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis Image center: 04:26:39.840 +13:59:58.72 J2000 4789.000 3195.000 ################################### The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits (1st new image) verification OK: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Image size: 937.9'x624.2' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis Image center: 04:26:40.295 +14:00:02.35 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:26:39.840 +13:59:58.72 Second-epoch image center 04:26:40.295 +14:00:02.35 Angular distance between the image centers 0.0021 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits (2nd new image) verification OK: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Image size: 937.9'x624.2' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis Image center: 04:26:37.726 +13:59:47.07 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:26:39.840 +13:59:58.72 Second-epoch image center 04:26:37.726 +13:59:47.07 Angular distance between the image centers 0.0091 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 04:26:40.295 +14:00:02.35 Second-epoch second image center 04:26:37.726 +13:59:47.07 Angular distance between the image centers 0.01122 deg. ################################### Running solve_plate_with_UCAC5... Preparing for a parallel run Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits &> /tmp/tmp.gDJNCv5NJ2 Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits &> /tmp/tmp.MWbfPWJnC4 Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits &> /tmp/tmp.ePusvCnBNa Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits &> /tmp/tmp.nFO1u5AWmd Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Calibrating the magnitude scale Found non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits ____ Start of magnitude calibration ____ PHOTOMETRIC_CALIBRATION=TYCHO2_V Calibrating the magnitude scale with Tycho-2 stars util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race) Tycho-2 catalog is found at lib/catalogs/tycho2 Tycho-2 catalog and the derived bright star exclusion list are ready Checking for the presence of non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat Found non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat The reference image (wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits) and catalog (wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat) found 'wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat' -> 'wcsmag.cat' Read 9344 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.3894 to 74.9279 deg, Dec +8.6217 to +19.2873 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 58.3894 to 74.9279 deg, Dec 8.6217 to 19.2873 deg Loaded 4391 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): 3406 out of 3669 total matches. Matched with Tycho-2 3669 out of 9344 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.989100 a=0.000000 b=1.000000 c=22.989100 From vast_summary.log: estimated ref. image limiting mag.: -7.54 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.45 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.45
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 9344 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.3894 to 74.9279 deg, Dec +8.6217 to +19.2873 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 58.3894 to 74.9279 deg, Dec 8.6217 to 19.2873 deg Loaded 4391 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): 3406 out of 3669 total matches. Matched with Tycho-2 3669 out of 9344 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Forced-photometry filter: calibrated wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits -> calib.txt_param_ref_wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (aperture=6.0) Read 8488 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.4321 to 74.9939 deg, Dec +8.6216 to +19.2870 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 58.4321 to 74.9939 deg, Dec 8.6216 to 19.2870 deg Loaded 4407 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): 3395 out of 3650 total matches. Matched with Tycho-2 3650 out of 8488 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Forced-photometry filter: calibrated wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits -> calib.txt_param_ref_wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits (aperture=5.8) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 3 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 2.0 pix Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 2.0 pix Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 2.4 pix fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 2.4 pix fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Limiting magnitude estimates: 15.4 mag. Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 15.3 mag. Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 14.5 mag. fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 14.6 mag. fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits cp: cannot create regular file 'local_wcs_cache/': Not a directory All-image limiting magnitude estimate: 14.5 (SNR ) 11.8 (80% of stars) with default.sex.telephoto_lens_onlybrightstars_v1 The first estimate is the magnitude of a star detected with a signal-to-noise ratio of following Karpov (2025, Acta Polytechnica, 65, 50). This value should be representative of the faintest stars clearly visible in the image. The brighter of the limiting magnitude estimates for the two second-epoch images is reported here. The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images. This value is representative of the faintest object that may enter the candidate transients list. The hard cut-off for the candidate transients is 15.5 mag. Waiting for UCAC5 plate solver wait ############ /tmp/tmp.gDJNCv5NJ2 (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' -> 'wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5 FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS_IMAGE_NAME=wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS-calibrated image found: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Checking if the catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits alredy exist and is non-empty... Catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS catalog name: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.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=728, bad_region=1955, passed=9344 Got 9344 stars (including 6757 good ones) from the SExtractor catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat util/solve_plate_with_UCAC5 got 9344 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4887 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4874 matched stars entering correct_measured_positions(), 4874 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.27" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4874 matched stars entering correct_measured_positions(), 7722 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.26" 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4887 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4874 matched stars entering correct_measured_positions(), 7722 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.27" Accuracy estimation diagnostic: 4874 matched stars entering correct_measured_positions(), 7722 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.28" Excluding outliers - 4874 stars left (next iteration limit 5361) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits N_match=4874 sigma_overall_arcsec=0.304 sigma_q1_arcsec=0.377 sigma_q2_arcsec=0.311 sigma_q3_arcsec=0.269 sigma_q4_arcsec=0.270 n_q1=1649 n_q2=740 n_q3=1787 n_q4=698 worst_quadrant_to_overall_ratio=1.242 The image catalog is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits -region wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.MWbfPWJnC4 (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' -> 'wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5 FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS_IMAGE_NAME=wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS-calibrated image found: wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Checking if the catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits alredy exist and is non-empty... Catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS catalog name: wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.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=679, bad_region=1868, passed=8488 Got 8488 stars (including 6040 good ones) from the SExtractor catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat util/solve_plate_with_UCAC5 got 8488 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4888 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: 0.30" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 6950 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.29" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4888 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(), 6950 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.30" Accuracy estimation diagnostic: 4873 matched stars entering correct_measured_positions(), 6950 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.31" Excluding outliers - 4873 stars left (next iteration limit 5360) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits N_match=4873 sigma_overall_arcsec=0.345 sigma_q1_arcsec=0.483 sigma_q2_arcsec=0.322 sigma_q3_arcsec=0.303 sigma_q4_arcsec=0.257 n_q1=1626 n_q2=774 n_q3=1759 n_q4=714 worst_quadrant_to_overall_ratio=1.402 The image catalog is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits -region wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.ePusvCnBNa (6) ############ Parsing command line arguments... The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um Internal estimated FoV 605.3' The guess is based on the FOCALLEN keyword. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve! FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS_IMAGE_NAME=wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS-calibrated image found: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Checking if the catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS catalog name: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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=385, bad_region=1669, passed=5787 Got 5787 stars (including 3842 good ones) from the SExtractor catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat util/solve_plate_with_UCAC5 got 5787 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.9' Seting catalog search parameters based on the expected field of view 937.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 3757 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 3750 matched stars entering correct_measured_positions(), 3750 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 3750 matched stars entering correct_measured_positions(), 4455 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 3757 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 3751 matched stars entering correct_measured_positions(), 4455 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Accuracy estimation diagnostic: 3751 matched stars entering correct_measured_positions(), 4455 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Excluding outliers - 3751 stars left (next iteration limit 4125) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=3751 robust_rms=7.130 arcsec worst_quadrant_rms=9.465 arcsec SIP_REFIT: SIP order 3 trial: matched=3751 robust_rms=0.519 arcsec worst_quadrant_rms=0.691 arcsec SIP_REFIT: SIP order 5 trial: matched=3751 robust_rms=0.386 arcsec worst_quadrant_rms=0.438 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=3751 robust_rms_before=1.127 arcsec robust_rms_before_corrected=0.409 arcsec robust_rms_after=0.386 arcsec worst_quadrant_rms_before=0.468 worst_quadrant_rms_after=0.438 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.468 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits N_match=3751 sigma_overall_arcsec=0.422 sigma_q1_arcsec=0.398 sigma_q2_arcsec=0.392 sigma_q3_arcsec=0.487 sigma_q4_arcsec=0.404 n_q1=1119 n_q2=755 n_q3=1162 n_q4=715 worst_quadrant_to_overall_ratio=1.154 The image catalog is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits -region wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.nFO1u5AWmd (6) ############ Parsing command line arguments... The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um Internal estimated FoV 605.3' The guess is based on the FOCALLEN keyword. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve! FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS_IMAGE_NAME=wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS-calibrated image found: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Checking if the catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS catalog name: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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=374, bad_region=1665, passed=5755 Got 5755 stars (including 3818 good ones) from the SExtractor catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat util/solve_plate_with_UCAC5 got 5755 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.9' Seting catalog search parameters based on the expected field of view 937.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 3730 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 3721 matched stars entering correct_measured_positions(), 3721 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 3721 matched stars entering correct_measured_positions(), 4418 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" 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 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 3730 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 3722 matched stars entering correct_measured_positions(), 4418 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Accuracy estimation diagnostic: 3722 matched stars entering correct_measured_positions(), 4418 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.41" Excluding outliers - 3722 stars left (next iteration limit 4093) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: SIP order 2 trial: matched=3722 robust_rms=7.072 arcsec worst_quadrant_rms=9.337 arcsec SIP_REFIT: SIP order 3 trial: matched=3722 robust_rms=0.527 arcsec worst_quadrant_rms=0.692 arcsec SIP_REFIT: SIP order 5 trial: matched=3722 robust_rms=0.410 arcsec worst_quadrant_rms=0.466 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=3722 robust_rms_before=1.125 arcsec robust_rms_before_corrected=0.416 arcsec robust_rms_after=0.410 arcsec worst_quadrant_rms_before=0.486 worst_quadrant_rms_after=0.466 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.486 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits N_match=3722 sigma_overall_arcsec=0.434 sigma_q1_arcsec=0.399 sigma_q2_arcsec=0.404 sigma_q3_arcsec=0.509 sigma_q4_arcsec=0.415 n_q1=1101 n_q2=744 n_q3=1165 n_q4=712 worst_quadrant_to_overall_ratio=1.172 The image catalog is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits -region wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations Saving the final (post-refit) wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits to local_wcs_cache/ 'wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' -> 'local_wcs_cache/wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' Saving the final (post-refit) wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits to local_wcs_cache/ 'wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' -> 'local_wcs_cache/wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' Saving the final (post-refit) wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits to local_wcs_cache/ 'wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits' -> 'local_wcs_cache/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits' Saving the final (post-refit) wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits to local_wcs_cache/ 'wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits' -> 'local_wcs_cache/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits' ################################### # Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above) ref1=Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits sigma_overall=0.304 worst_q_ratio=1.242 ref2=Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits sigma_overall=0.345 worst_q_ratio=1.402 new1=fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits sigma_overall=0.422 worst_q_ratio=1.154 new2=fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits sigma_overall=0.434 worst_q_ratio=1.172 reference average sigma_overall=0.3245 worst_q_ratio=1.322 warn-on-ratio threshold: 2.0x reference ###################################
Astrometric residual vector field (catalog-matched stars):
plot_astrometric_residuals_xy.py: wrote wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151_astrometric_residuals.png (4874 matched stars from wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.27 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147_astrometric_residuals.png (4873 matched stars from wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.31 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408_astrometric_residuals.png (3751 matched stars from wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)
plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409_astrometric_residuals.png (3722 matched stars from wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)
Copying WCS-calibrated images back to input directory Saving fully-calibrated image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits' Saving fully-calibrated image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) 'wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits' Preparing the HTML report for the field Tau-06-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 make_report_in_HTML.sh Phase 1 (network queries): 0s Pre-generating preview images in parallel... Done pre-generating preview images. Pre-generating finding charts in parallel... Done pre-generating finding charts. make_report_in_HTML.sh Pre-generation: 1s xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 20116_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 20116_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks**** FOUND 04:27:51.54 +10:00:51.4 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 02564_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 02564_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 10.38 04:27:51.51 +10:00:51.7 4936 0782 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:25:27.22 +16:33:22.1 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 06530_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 06530_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 10.09 04:25:27.22 +16:33:21.9 4642 4745 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:43:23.93 +11:35:05.4 in the exclusion list exclusion_list.txt **** make_report_in_HTML.sh Phase 2 (HTML assembly): 0s make_report_in_HTML.sh TOTAL: 1s Prepared the HTML report for the field Tau-06-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1 *------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------* #### The local exclusion list is exclusion_list_local.txt #### wait *------ default.sex.telephoto_lens_vSTL ------* 'default.sex.telephoto_lens_vSTL' -> 'default.sex' Starting VaST with default.sex.telephoto_lens_vSTL ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits SExtractor catalog cache: saved Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.cat to cache SExtractor catalog cache: saved Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.cat to cache VaST run complete with default.sex.telephoto_lens_vSTL The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Checking WCS cache directory local_wcs_cache Found WCS cache directory local_wcs_cache Creating symlink local_wcs_cache/wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Creating symlink local_wcs_cache/wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Creating symlink local_wcs_cache/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Creating symlink local_wcs_cache/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.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_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits exists and is non-empty wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits exists and is non-empty wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits exists and is non-empty wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits exists and is non-empty ################################### # fov_of_wcs_calibrated_image.sh output for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (1st reference image) verification OK: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Image size: 941.6'x627.0' 15.7(deg)x10.4(deg) 9576x6388 pix Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis Image center: 04:26:39.840 +13:59:58.72 J2000 4789.000 3195.000 ################################### The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9" ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits (1st new image) verification OK: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Image size: 937.9'x624.2' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis Image center: 04:26:40.295 +14:00:02.35 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the first second-epoch image (pointing accuracy) Reference image center 04:26:39.840 +13:59:58.72 Second-epoch image center 04:26:40.295 +14:00:02.35 Angular distance between the image centers 0.0021 deg. Soft limit: 0.50 deg. Hard limit: 1.00 deg. ################################### ################################### # fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits (2nd new image) verification OK: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Image size: 937.9'x624.2' 15.6(deg)x10.4(deg) 9576x6388 pix Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis Image center: 04:26:37.726 +13:59:47.07 J2000 4789.000 3195.000 ################################### ################################### # Check the image center offset between the reference and the second second-epoch image (pointing accuracy) Reference image center 04:26:39.840 +13:59:58.72 Second-epoch image center 04:26:37.726 +13:59:47.07 Angular distance between the image centers 0.0091 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 04:26:40.295 +14:00:02.35 Second-epoch second image center 04:26:37.726 +13:59:47.07 Angular distance between the image centers 0.01122 deg. ################################### Running solve_plate_with_UCAC5... Preparing for a parallel run Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits &> /tmp/tmp.NknNSuqVwN Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits &> /tmp/tmp.8KZyFeEkER Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits &> /tmp/tmp.e0johT5GbF Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Running util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits &> /tmp/tmp.fZlzSSAKio Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Calibrating the magnitude scale Found non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits ____ Start of magnitude calibration ____ PHOTOMETRIC_CALIBRATION=TYCHO2_V Calibrating the magnitude scale with Tycho-2 stars util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_ Discovery image 3 2026 08 19.37496 2461271.87496 11.64 04:43:23.97 +11:35:05.9 7255 1720 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits .fits write race) Tycho-2 catalog is found at lib/catalogs/tycho2 Tycho-2 catalog and the derived bright star exclusion list are ready Checking for the presence of non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat Found non-empty wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits and wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat The reference image (wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits) and catalog (wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat) found 'wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat' -> 'wcsmag.cat' Read 62263 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.3895 to 74.9801 deg, Dec +8.6217 to +19.2873 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 58.3895 to 74.9801 deg, Dec 8.6217 to 19.2873 deg Loaded 4417 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): 3083 out of 3672 total matches. Matched with Tycho-2 3672 out of 62263 detected stars. The calibration function type and coefficients are written to calib.txt_param util/calibrate_magnitude_scale 0.000000 1.000000 22.852800 a=0.000000 b=1.000000 c=22.852800 From vast_summary.log: estimated ref. image limiting mag.: -7.23 Updating vast_summary.log: Estimated ref. image limiting mag.: 15.62 Updated vast_limiting_magnitude.log with calibrated magnitudes Working... Please, PLEASE, be patient!!! All lightcurves processed! =) Estimated ref. image limiting mag.: 15.62
Lightcurve magnitude calibration plot:
Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V) Read 62263 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.3895 to 74.9801 deg, Dec +8.6217 to +19.2873 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 58.3895 to 74.9801 deg, Dec 8.6217 to 19.2873 deg Loaded 4417 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): 3083 out of 3672 total matches. Matched with Tycho-2 3672 out of 62263 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Forced-photometry filter: calibrated wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits -> calib.txt_param_ref_wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (aperture=4.5) Read 58309 stars from the SExtractor catalog wcsmag.cat Detected star coordinate range: RA 58.4014 to 74.9981 deg, Dec +8.6064 to +19.2869 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 58.4014 to 74.9981 deg, Dec 8.6064 to 19.2869 deg Loaded 4433 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): 3131 out of 3673 total matches. Matched with Tycho-2 3673 out of 58309 detected stars. util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits via Tycho-2
Single-image forced-photometry magnitude calibration plot for wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits:
Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Forced-photometry filter: calibrated wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits -> calib.txt_param_ref_wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits (aperture=4.3) ____ End of magnitude calibration ____ Applying consolidated magnitude filters... Preparing the exclusion lists for this field Done with filtering Found 16 candidate transients before the final filtering. (Hard limit: 10000) Median FWHM seeing for isolated stars: 1.9 pix Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 1.8 pix Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 2.2 pix fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 2.2 pix fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Limiting magnitude estimates: 15.6 mag. Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 15.5 mag. Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 14.8 mag. fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 14.8 mag. fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits All-image limiting magnitude estimate: 14.8 (SNR ) 14.4 (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.NknNSuqVwN (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' -> 'wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits' This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5 FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS_IMAGE_NAME=wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS-calibrated image found: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits Checking if the catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits alredy exist and is non-empty... Catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits WCS catalog name: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.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=12, blended=3506, bad_region=10392, passed=62251 Got 62251 stars (including 48725 good ones) from the SExtractor catalog wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat util/solve_plate_with_UCAC5 got 62251 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4890 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 4881 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.26" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 53920 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.27" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4890 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 53920 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.27" Accuracy estimation diagnostic: 4881 matched stars entering correct_measured_positions(), 53920 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.29" Excluding outliers - 4881 stars left (next iteration limit 5369) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits N_match=4881 sigma_overall_arcsec=0.302 sigma_q1_arcsec=0.367 sigma_q2_arcsec=0.319 sigma_q3_arcsec=0.270 sigma_q4_arcsec=0.258 n_q1=1624 n_q2=735 n_q3=1801 n_q4=721 worst_quadrant_to_overall_ratio=1.213 The image catalog is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits -region wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.8KZyFeEkER (6) ############ Parsing command line arguments... WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.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_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits 573.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits is already a symlink and we do not allow symlinks on symlinks FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits It's a known telescope with plate solutions that are supposed to be good. The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits has a WCS header - will blindly trust it is good... '/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' -> 'wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits' This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5 FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS_IMAGE_NAME=wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS-calibrated image found: wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits Checking if the catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits alredy exist and is non-empty... Catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat corresponding to the image wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits WCS catalog name: wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.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=6, blended=3080, bad_region=9253, passed=58303 Got 58303 stars (including 46293 good ones) from the SExtractor catalog wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat util/solve_plate_with_UCAC5 got 58303 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4891 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 4880 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.30" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 50853 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.30" 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 493 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4891 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 50853 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.30" Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 50854 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.32" Excluding outliers - 4880 stars left (next iteration limit 5368) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway) WCS_QUALITY_DIAG: file=Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits N_match=4880 sigma_overall_arcsec=0.333 sigma_q1_arcsec=0.462 sigma_q2_arcsec=0.310 sigma_q3_arcsec=0.301 sigma_q4_arcsec=0.251 n_q1=1612 n_q2=760 n_q3=1786 n_q4=722 worst_quadrant_to_overall_ratio=1.387 The image catalog is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits -region wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.e0johT5GbF (6) ############ Parsing command line arguments... The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um Internal estimated FoV 605.3' The guess is based on the FOCALLEN keyword. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve! FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS_IMAGE_NAME=wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS-calibrated image found: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Checking if the catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits WCS catalog name: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.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=6, blended=1539, bad_region=7794, passed=35697 Got 35697 stars (including 26802 good ones) from the SExtractor catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat util/solve_plate_with_UCAC5 got 35697 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.9' Seting catalog search parameters based on the expected field of view 937.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4897 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 4886 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29716 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" ITERATION 02 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4897 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29716 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.37" Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29716 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Excluding outliers - 4886 stars left (next iteration limit 5374) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions SIP_REFIT: SIP order 2 trial: matched=4886 robust_rms=7.041 arcsec worst_quadrant_rms=9.768 arcsec SIP_REFIT: SIP order 3 trial: matched=4886 robust_rms=0.525 arcsec worst_quadrant_rms=0.679 arcsec SIP_REFIT: SIP order 5 trial: matched=4886 robust_rms=0.394 arcsec worst_quadrant_rms=0.449 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=4886 robust_rms_before=1.105 arcsec robust_rms_before_corrected=0.403 arcsec robust_rms_after=0.394 arcsec worst_quadrant_rms_before=0.454 worst_quadrant_rms_after=0.449 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.454 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits N_match=4886 sigma_overall_arcsec=0.422 sigma_q1_arcsec=0.385 sigma_q2_arcsec=0.387 sigma_q3_arcsec=0.479 sigma_q4_arcsec=0.415 n_q1=1498 n_q2=970 n_q3=1470 n_q4=948 worst_quadrant_to_overall_ratio=1.137 The image catalog is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits -region wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations ############ /tmp/tmp.fZlzSSAKio (6) ############ Parsing command line arguments... The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um Internal estimated FoV 605.3' The guess is based on the FOCALLEN keyword. Trying to blindly solve the plate (local solve-field or remote server)... /data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits 605.0 Entering WCS image calibration mode. ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve! FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS_IMAGE_NAME=wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS-calibrated image found: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Checking if the catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits alredy exist and is non-empty... Catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat corresponding to the image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits found. The catalog is in the new format, as expected. The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits WCS catalog name: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat Excluding image region: -1.0 -1.0 1.0 1.0 (defined in bad_region.lst) Excluding image region: 7500.0 0.0 9576.0 6388.0 (defined in bad_region.lst) Excluding image region: 1122.0 1550.0 1124.0 1552.0 (defined in bad_region.lst) Excluding image region: 1637.0 2824.0 1639.0 2826.0 (defined in bad_region.lst) Excluding image region: 1831.0 2839.0 1833.0 2841.0 (defined in bad_region.lst) Excluding image region: 1905.0 4570.0 1907.0 4572.0 (defined in bad_region.lst) Excluding image region: 2012.0 4693.0 2014.0 4695.0 (defined in bad_region.lst) Excluding image region: 2397.0 4241.0 2399.0 4243.0 (defined in bad_region.lst) Excluding image region: 2679.0 2807.0 2681.0 2809.0 (defined in bad_region.lst) Excluding more image regions!.. (will not print them all) Excluded a total of 31 image regions (defined in bad_region.lst). SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=7, blended=1514, bad_region=7869, passed=35877 Got 35877 stars (including 26903 good ones) from the SExtractor catalog wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat util/solve_plate_with_UCAC5 got 35877 stars from the SExtractor catalog Updated FoV from the plate-solved image: 937.9' Seting catalog search parameters based on the expected field of view 937.9 arcmin UCAC5 catalog search parameters: catalog_search_parameters->search_radius_deg= 0.013026 (46.9 arcsec) catalog_search_parameters->brightest_mag= 1.00 catalog_search_parameters->faintest_mag= 13.50 catalog_search_parameters->search_radius_second_step_deg 0.010421 (37.5 arcsec) ITERATION 01 -- talking to VizieR, this might be slow! UCAC5 search strategy: trying local copy first Found a local copy of UCAC5 UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50 Reading UCAC5 zone files... Searching UCAC5 zones 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4898 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 4886 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.38" Removing outliers... Correcting the measured astrometric positions... Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29860 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" 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 492 to 548 (Dec 8.6 to 19.3) Done reading UCAC5 zone files... Matched 4898 stars with the local copy of UCAC5. The local UCAC5 search seems to be a success Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29860 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.39" Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 29860 with non-zero local correction accuracy Estimated accuracy of the plate solution: 0.40" Excluding outliers - 4886 stars left (next iteration limit 5374) Stop iterations. The field is successfully solved and matched with the astrometric catalog! :) SIP_REFIT: wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions SIP_REFIT: SIP order 2 trial: matched=4886 robust_rms=7.029 arcsec worst_quadrant_rms=9.734 arcsec SIP_REFIT: SIP order 3 trial: matched=4886 robust_rms=0.528 arcsec worst_quadrant_rms=0.694 arcsec SIP_REFIT: SIP order 5 trial: matched=4886 robust_rms=0.418 arcsec worst_quadrant_rms=0.471 arcsec SIP_REFIT: selected SIP order 5 SIP_REFIT: order=5 matched=4886 robust_rms_before=1.101 arcsec robust_rms_before_corrected=0.412 arcsec robust_rms_after=0.418 arcsec worst_quadrant_rms_before=0.478 worst_quadrant_rms_after=0.471 SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.478 arcsec) - keeping the original WCS_QUALITY_DIAG: file=fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits N_match=4886 sigma_overall_arcsec=0.430 sigma_q1_arcsec=0.409 sigma_q2_arcsec=0.396 sigma_q3_arcsec=0.496 sigma_q4_arcsec=0.409 n_q1=1501 n_q2=969 n_q3=1472 n_q4=944 worst_quadrant_to_overall_ratio=1.155 The image catalog is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ucac5 The DS9 region file with the matched stars is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ds9.reg You may view it with the command: ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits -region wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.ds9.reg The astrometric residuals vector field is written to wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits.wcscat.astrometric_residuals Option '-n' not using photometric catalogs, just stick with astrometry opt '-i': 2 is the maximum number of iterations Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL) Copying WCS-calibrated images back to input directory Saving fully-calibrated image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits Saving fully-calibrated image wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image) The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/wcs_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Preparing the HTML report for the field Tau-06-Q2b1x1 with default.sex.telephoto_lens_vSTL Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:21:50.33 +10:42:58.6: 14.11 +/- 0.05 detection Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:41:35.48 +17:07:43.6: 16.10 +/- 99.00 upperlimit Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:21:50.95 +14:24:29.3: 14.89 +/- 0.10 detection Forced photometry on wcs_Tau-06-Q2b1x1_2026-01-08_22-22-35_20.00sec_-14.90C_LIGHT_0151.fits at 04:39:55.68 +16:18:42.5: 16.27 +/- 99.00 upperlimit Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:41:35.48 +17:07:43.6: 16.09 +/- 99.00 upperlimit Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:21:50.33 +10:42:58.6: 14.21 +/- 0.06 detection Forced photometry reference-image weighted average: 14.15 +/- 0.04 Forced photometry filter REJECTED candidate at 04:21:50.33 +10:42:58.6: ref_mag=14.15 +/- 0.04 new_mean_mag=14.0864 delta=0.07 (need > 0.90) Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:39:55.68 +16:18:42.5: 16.18 +/- 99.00 upperlimit Forced photometry on wcs_Tau-06-Q2b1x1_2026-02-11_22-19-16_20.00sec_-15.00C_LIGHT_0147.fits at 04:21:50.95 +14:24:29.3: 14.97 +/- 0.11 detection Forced photometry reference-image weighted average: 14.93 +/- 0.07 Forced photometry filter REJECTED candidate at 04:21:50.95 +14:24:29.3: ref_mag=14.93 +/- 0.07 new_mean_mag=14.7381 delta=0.19 (need > 0.90) Adding exclusion_list_local.txt__out78748.dat to exclusion_list_local.txt Adding exclusion_list_local.txt__out80748.dat to exclusion_list_local.txt make_report_in_HTML.sh Phase 1 (network queries): 7s 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 75334_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 75334_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checksDiscovery image 1 2026 08 19.37428 2461271.87428 14.06 04:21:50.23 +10:42:59.0 4040 1220 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78020_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78020_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 14.11 04:21:50.43 +10:42:58.3 4047 1222 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:21:59.63 +14:06:13.9 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78277_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78277_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.26 04:21:59.65 +14:06:14.3 4112 3271 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:30:08.20 +15:39:58.2 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78455_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78455_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.57 04:30:08.18 +15:39:59.8 5314 4198 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:38:35.53 +17:25:28.2 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78586_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78586_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.44 04:38:35.52 +17:25:28.6 6549 5258 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:39:11.26 +17:52:56.1 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78665_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78665_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.53 04:39:11.25 +17:52:56.3 6636 5537 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:30:13.77 +15:39:27.2 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78748_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 Preparing report for the candidate 78748_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78889_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78889_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.49 04:30:13.77 +15:39:27.2 5327 4192 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:33:52.77 +13:15:17.6 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 78971_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 78971_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.67 04:33:52.79 +13:15:18.1 5848 2736 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:35:39.24 +16:08:30.9 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 79219_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 79219_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.67 04:35:39.25 +16:08:31.5 6119 4480 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:33:58.26 +10:13:54.0 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 79446_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 79446_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.73 04:33:58.31 +10:13:53.6 5849 0904 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:21:31.34 +14:25:59.5 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 79533_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 79533_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.93 04:21:31.31 +14:26:00.1 4046 3472 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:20:48.54 +13:50:45.6 in the exclusion list exclusion_list_bsc.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 79870_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 79870_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.75 04:20:48.57 +13:50:45.2 3935 3119 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:34:19.02 +12:36:39.4 in the exclusion list exclusion_list.txt **** xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 80748_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 Preparing report for the candidate 80748_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 81955_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 81955_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 13.80 04:34:18.98 +12:36:37.3 5909 2346 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits Discovery image 1 2026 08 19.37428 2461271.87428 14.65 04:21:50.86 +14:24:26.6 4088 3453 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-58-47_20.00sec_-0.00C_LIGHT_0408.fits xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Considering the candidate 56370_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 The candidate 56370_fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409 did not pass the final checks Discovery image 2 2026 08 19.37496 2461271.87496 14.89 04:21:51.04 +14:24:32.1 4094 3456 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits **** FOUND 04:43:23.92 +11:35:05.6 in the exclusion list exclusion_list.txt **** make_report_in_HTML.sh Phase 2 (HTML assembly): 0s make_report_in_HTML.sh TOTAL: 9s Prepared the HTML report for the field Tau-06-Q2b1x1 with default.sex.telephoto_lens_vSTL *------ done with default.sex.telephoto_lens_vSTL ------* #### The local exclusion list is exclusion_list_local.txt #### 04:41:35.48 +17:07:43.6 04:39:55.68 +16:18:42.5 ########### Completed Tau-06-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 #### 04:41:35.48 +17:07:43.6 04:39:55.68 +16:18:42.5 ################################################################################### 04:41:35.48 +17:07:43.6 -- asteroid (will NOT add it to exclusion list) 04:39:55.68 +16:18:42.5 -- asteroid (will NOT add it to exclusion list) renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt' renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt' # Count candidates with no identification (that also don't look like hot pix) Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars). ################################################################################### 0 candidates found (excluding asteroids and hot pixels) This does not look like a test run ################################################################################### exclusion_list_gaiadr2.txt NOT FOUND exclusion_list_apass.txt NOT FOUND IS_THIS_TEST_RUN=NO ALLOW_EXCLUSION_LIST_UPDATE= YES #### Nothing to add to the exclusion list #### The observatory MPC code is V36 ############################################################ Positions of planets computed with util/planet_finder/main.py for JD(UT)2461271.87427898 -observatory V36 09:21:19.30 +17:02:36.5 Mercury (-1.6mag) 12:40:37.90 -06:23:44.2 Venus (-4.5mag) 06:21:24.35 +23:41:34.2 Mars (1.3mag) 08:52:53.13 +18:03:22.2 Jupiter (-1.8mag) 00:55:15.27 +03:05:01.4 Saturn (0.5mag) 04:12:49.06 +20:59:45.4 Uranus (5.7mag) 00:15:21.67 +00:07:52.1 Neptune (7.7mag) 20:27:06.36 -23:34:13.2 Pluto (14.5mag) 14:52:38.79 -22:20:13.2 Moon (-10.2mag) -rw-r--r-- 1 apache apache 363 Aug 19 04:15 planets.txt ############################################################ Positions of selected moons from JPL HORIZONS for JD(UT)2461271.87427898: 08:52:48.29 +18:03:45.3 Io (6.1mag) 08:53:04.15 +18:02:32.6 Europa (6.3mag) 08:52:39.04 +18:04:28.4 Ganymede (5.6mag) 08:52:29.08 +18:05:10.4 Callisto (6.8mag) 08:50:20.94 +18:09:34.9 Himalia (15.7mag) 08:52:57.56 +18:03:03.2 Thebe (16.6mag) 08:49:59.14 +18:05:58.4 Elara (17.7mag) 08:57:01.56 +17:37:51.4 Pasiphae (17.9mag) 08:55:18.67 +18:16:13.2 Carme (19.0mag) 00:55:24.82 +03:05:07.6 Titan (8.4mag) 00:55:10.87 +03:05:08.1 Rhea (9.7mag) 00:55:48.33 +03:06:08.7 Iapetus (11.1mag) 00:55:30.79 +03:04:51.1 Hyperion (14.4mag) 00:54:23.66 +02:56:48.0 Phoebe (16.4mag) -rw-r--r-- 1 apache apache 568 Aug 19 04:15 moons.txt ############################################################ Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461271.87427898: 19:54:41.95 -16:17:43.2 JWST 16:58:52.64 +41:45:33.7 Chandra 06:15:32.67 +24:15:20.5 XMM-Newton -rw-r--r-- 1 apache apache 96 Aug 19 04:15 spacecraft.txt ############################################################ Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461271.87427898 -observatory V36 03:25:26.80 +18:14:16.9 17.5mag P/1996 R2 (Lagerkvist) 17:59:56.57 -34:31:02.0 14.1mag P/2010 H2 (Vales) 07:03:54.35 -69:21:17.7 17.3mag C/2014 UN271 (Bernardinelli-Bernstein) 06:12:31.17 +33:14:18.7 17.7mag C/2017 K2 (PANSTARRS) 04:14:00.27 +41:37:09.5 17.3mag P/2021 N1 (ZTF) 22:29:16.00 +30:38:27.3 17.3mag C/2022 E2 (ATLAS) 06:54:11.97 +26:20:23.5 16.8mag C/2022 N2 (PANSTARRS) 10:31:55.79 +27:58:42.9 17.0mag C/2022 QE78 (ATLAS) 09:36:19.38 +05:18:21.3 18.0mag C/2022 R6 (PANSTARRS) 15:14:50.83 -12:44:46.5 18.0mag P/2023 B1 (PANSTARRS) 20:56:47.32 +64:32:38.4 17.9mag C/2023 H5 (Lemmon) 15:38:25.42 -13:57:48.0 14.5mag C/2023 R1 (PANSTARRS) 08:20:11.41 +31:51:56.1 15.5mag C/2024 E1 (Wierzchos) 15:05:47.85 +15:32:01.4 17.8mag C/2024 G6 (ATLAS) 18:49:58.98 +43:28:05.9 13.7mag C/2024 J3 (ATLAS) 20:53:56.22 +49:39:14.2 17.5mag C/2024 R4 (PANSTARRS) 05:23:39.26 -12:53:52.3 15.3mag C/2024 T5 (ATLAS) 07:02:59.82 +22:09:24.9 17.9mag C/2025 J1 (Borisov) 10:48:50.83 +20:10:01.8 17.1mag C/2025 V2 (Rankin) 13:05:18.49 +01:34:25.7 16.9mag C/2025 Y1 (ATLAS) 16:07:14.43 +76:38:55.5 16.5mag C/2026 A2 (Bok) 03:09:53.29 +46:20:18.8 17.2mag C/2026 B2 (Sun-Gao) 11:56:14.50 +09:39:21.4 17.4mag A/2026 E1 22:09:39.83 -31:25:39.0 7.1mag 10P/Tempel 11:35:49.48 -04:07:03.8 16.3mag 29P/Schwassmann-Wachmann 11:30:22.21 +00:59:41.6 17.4mag 63P/Wild 00:52:28.44 -05:56:37.6 15.4mag 65P/Gunn 06:00:21.40 +20:22:30.7 13.7mag 78P/Gehrels 20:28:11.47 -24:43:16.9 17.5mag 84P/Giclas 03:10:06.47 +14:23:37.9 16.9mag 88P/Howell 08:23:28.62 +26:02:57.0 16.4mag 93P/Lovas 04:38:35.18 +21:14:15.4 17.3mag 112P/Urata-Niijima 06:32:59.33 +28:48:41.7 16.1mag 114P/Wiseman-Skiff 09:44:43.75 +24:39:37.8 14.9mag 123P/West-Hartley 12:06:20.21 -14:29:47.9 17.2mag 124P/Mrkos 05:52:37.29 +21:04:40.3 16.0mag 128P/Shoemaker-Holt 06:47:09.11 +18:17:20.7 17.9mag 131P/Mueller 00:00:39.84 +03:11:41.4 17.5mag 139P/Vaisala-Oterma 03:13:03.17 -18:44:29.5 13.1mag 161P/Hartley-IRAS 07:53:52.98 +38:07:25.5 16.0mag 162P/Siding Spring 11:41:30.67 +34:10:14.6 12.1mag 169P/NEAT 03:01:47.44 +09:28:36.8 17.6mag 220P/McNaught 16:48:30.90 -10:55:04.8 18.0mag 235P/LINEAR 20:16:57.97 -52:09:25.2 17.9mag 259P/Garradd 03:54:38.05 +29:41:37.2 15.3mag 260P/McNaught 07:38:36.76 +37:16:23.3 17.3mag 295P/LINEAR 15:14:47.26 +01:53:33.2 17.8mag 391P/Kowalski 09:11:01.66 +17:49:10.7 17.9mag 450P/LONEOS -rw-r--r-- 1 apache apache 2.3K Aug 19 04:15 comets.txt ############################################################ List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html : 21:28:47.85 +20:31:03.60 SN 2026sfn 2026-08-16.3 17.09 23:01:28.67 -61:00:39.00 SN 2026yib 2026-08-14.85 17.36 00:22:23.20 -32:16:02.70 SN 2026whu 2026-08-14.96 16.5 19:56:21.71 -37:24:19.90 ASASSN-26ew 2026-08-13.82 14.73 13:53:14.21 +00:26:52.00 SN 2026wkv 2026-08-10.12 15.83 05:21:07.61 +23:38:20.10 TCP J05210763+2338194 2026-08-10.59 9.34 01:28:20.49 +40:13:27.10 SN2026wpd 2026-08-9.34 16.37 23:47:50.87 +49:28:49.80 SN2026wjs 2026-08-9.35 17.12 16:03:20.92 +17:43:23.70 AT2026xau 2026-08-9.3 17.71 01:10:22.05 -09:34:08.50 SN2026weo 2026-08-7.46 15.76 00:56:54.35 -35:55:29.40 AT2026wdy 2026-08-5.05 16.08 22:08:07.63 -53:03:58.90 AT2026wek 2026-08-3.82 17.17 14:51:51.34 +66:13:24.60 ASASSN-26ev 2026-08-2.15 14.02 12:06:50.79 -36:16:06.20 SN2026wgm 2026-08-1.73 15.61 16:56:36.90 -59:29:26.00 ASASSN-26er 2026-07-25.82 15.09 01:21:27.83 -10:37:05.00 SN2026vbh 2026-07-25.61 15.97 21:17:31.59 +22:25:50.90 ASASSN-26eq 2026-07-24.37 15.13 18:53:36.89 +16:56:43.60 ASASSN-26ep 2026-07-23.47 -4.06 12:18:47.98 -30:48:47.50 ASASSN-26et 2026-07-22.76 13.98 13:00:47.82 +15:42:17.60 SN2026uwk 2026-07-21.75 16.38 18:52:31.11 -32:28:00.90 ASASSN-26en 2026-07-21.77 14.63 14:42:58.01 -62:32:59.10 ASASSN-26es 2026-07-20.79 15.36 20:12:45.57 -32:53:13.00 ASASSN-26em 2026-07-20.94 16.83 18:54:24.33 -46:11:51.70 ASASSN-26eu 2026-07-20.93 14.86 03:18:56.99 -80:55:10.40 AT2026ugi 2026-07-20.03 17.12 18:43:58.40 +24:22:41.80 ASASSN-26eo 2026-07-19.36 16.16 04:50:01.03 -02:22:33.80 ASASSN-26ej 2026-07-16.17 17.02 18:34:55.28 -31:41:00.90 ASASSN-26ek 2026-07-16.24 15.73 17:07:43.61 -44:21:53.50 ASASSN-26el 2026-07-15.86 16.01 14:45:08.35 +24:13:12.30 ASASSN-26ei 2026-07-16.17 16.46 10:00:46.44 -32:36:31.10 AT 2023mhb 2026-07-14.73 16.67 14:39:37.45 -11:22:36.20 AT 2026unl 2026-07-15.27 17.11 10:49:42.57 -11:25:55.80 ASASSN-26eh 2026-07-14.72 16.58 19:33:53.06 -07:15:00.80 ASASSN-22le 2026-07-14.15 15.5 02:45:40.52 -27:55:30.30 ASASSN-26ef 2026-07-12.35 15.86 23:26:43.80 +04:42:39.70 SN 2026qtn 2026-07-12.22 16.47 02:19:17.26 +28:57:15.40 ASASSN-26ec 2026-07-11.53 2.78 18:31:15.56 -05:34:31.50 AT2026stb 2026-07-11.28 -1.29 13:36:08.24 +23:29:05.00 AT2026pjf 2026-07-10.18 -0.72 17:33:39.82 +04:22:36.70 SN2026pir 2026-07-9.86 -0.66 11:21:41.26 -50:33:36.30 ASASSN-26ed 2026-07-8.8 -1.3 23:41:42.11 +26:29:49.10 AT2026qil 2026-07-9.3 16.15 20:21:30.50 -32:03:40.10 ASASSN-26ee 2026-07-7.22 15.53 19:37:44.09 -05:35:42.80 AT2026ryu 2026-07-7.17 14.88 11:06:55.46 -04:07:04.50 AT2026qqg 2026-07-5.01 16.82 19:07:23.69 -74:13:37.30 AT2026qly 2026-07-5.02 17.31 17:57:43.80 +27:18:40.10 ASASSN-26ea 2026-07-5.07 16.67 19:59:01.43 -32:07:34.30 ASASSN-26eb 2026-07-4.97 15.52 18:46:50.35 -57:44:13.20 SN 2026qqp 2026-07-5.03 -0.92 19:17:31.69 -39:55:29.90 ASASSN-26dz 2026-07-5.14 15.91 19:14:31.37 +12:03:52.90 AT 2026rdg 2026-07-3.43 11.81 04:05:50.09 -70:24:34.40 AT 2026qpr 2026-06-30.4 15.96 13:45:37.49 -05:59:35.80 SN 2026pub 2026-06-30.09 16.01 16:41:15.63 +39:17:14.70 SN 2026pel 2026-06-26.38 16.07 10:14:40.19 -35:38:21.30 ASASSN-26dy 2026-06-25.99 15.63 14:47:21.56 -40:15:51.30 ASASSN-26dv 2026-06-23.03 14.62 13:38:49.79 -77:21:06.70 ASASSN-26dw 2026-06-23.04 16.09 00:59:27.90 +33:08:13.20 SN 2026mke 2026-06-22.39 17.13 11:10:44.73 -30:20:45.50 SN 2026nmv 2026-06-22.06 16.56 21:36:15.68 -21:19:12.50 AT2026oxh 2026-06-22.15 17.14 17:31:38.38 -56:05:51.90 ASASSN-26dx 2026-06-22.02 14.72 14:10:13.44 -38:46:46.10 AT2026pvk 2026-06-22.06 16.53 20:56:47.23 -18:31:05.20 AT2026plb 2026-06-21.31 16.4 15:44:29.68 +21:00:59.30 SN2026ore 2026-06-21.29 17.57 23:50:05.98 -14:01:41.30 AT2026oxl 2026-06-21.52 17.64 17:36:54.73 -18:10:04.20 AT2026ouj 2026-06-20.92 15.15 00:34:04.08 -30:22:09.20 AT2026ntk 2026-06-18.09 17.34 20:49:13.39 +25:17:59.20 ASASSN-26du 2026-06-15.39 15.93 23:09:30.84 +32:40:42.00 SN2026oxc 2026-06-14.35 16.83 02:02:26.67 +32:04:22.70 AT2026ovz 2026-06-14.6 15.52 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 14:23:56.72 -58:37:47.60 ASASSN-26dn 2026-05-20.01 14.64 11:24:54.06 +47:57:01.60 AT2026nma 2026-05-20.29 15.46 21:27:08.58 +33:24:38.10 AT2026lli 2026-05-19.34 15.86 00:31:01.41 -13:38:51.70 AT2026nad 2026-05-19.39 15.34 15:16:06.61 -79:16:32.40 ASASSN-26dm 2026-05-19.03 14.44 11:24:25.21 -59:23:19.10 ASASSN-26dl 2026-05-18.02 13.55 13:45:51.52 -53:16:01.00 ASASSN-26dk 2026-05-18.16 12.96 02:05:49.69 -30:29:09.60 ASASSN-26dh 2026-05-18.43 15.37 17:50:22.87 -39:42:33.90 ASASSN-26dj 2026-05-17.05 15.7 01:13:11.60 -33:25:16.10 ASASSN-26dg 2026-05-13.41 16.8 16:44:31.77 -27:15:18.40 AT2026mhn 2026-05-12.33 15.8 09:46:31.08 -33:41:51.00 ASASSN-26di 2026-05-12.14 14.63 21:23:11.57 -19:09:45.00 AT2026kwu 2026-05-12.26 16.9 -rw-r--r-- 1 apache apache 5.7K Aug 19 04:15 asassn_transients_list.txt ############################################################ Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html : 19:51:21.42 +37:06:40.0 TCP J19512142+3706400 2026-06-17.2942 16.8mag 19:57:03.87 +37:41:46.4 TCP J19570387+3741464 2026-06-18.2638 17.5mag 00:42:32.04 +41:10:28.3 PNV J00423204+4110283 2026-06-26.059 16.6mag 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 -rw-r--r-- 1 apache apache 190K Aug 19 04:15 tocp_transients_list.txt ############################################################ Truncated list of recent TNS transients from https://www.wis-tns.org/ : 14:17:41.187 +58:11:22.15 AT 2026xar 2026-08-04.19 19.1338 20:23:39.247 +11:42:39.44 SN 2026xaq 2026-08-03.95 19.47 20:19:04.225 +25:37:48.81 AT 2026xap 2026-08-03.44 18.58 12:02:08.871 -33:06:45.84 AT 2026xao 2026-08-03.72 19.152 17:22:14.965 +09:02:31.04 AT 2026xan 2026-08-04.21 19.0651 16:26:48.114 +00:11:54.67 AT 2026xam 2026-08-02.17 20.0303 15:27:21.981 +32:14:38.20 AT 2026xal 2026-08-04.18 19.7982 14:23:54.444 +14:25:40.42 AT 2026xak 2026-07-14.22 20.7881 15:31:24.622 +04:06:01.15 AT 2026xaj 2026-08-02.18 20.5636 14:35:58.114 +53:44:16.90 AT 2026xai 2026-08-02.20 20.1016 18:19:05.698 +53:11:07.41 AT 2026xah 2026-08-02.19 20.0688 20:55:20.373 -00:21:55.35 AT 2026xag 2026-08-03.47 20.94 14:15:21.615 +05:15:37.35 AT 2026xaf 2026-08-03.30 20.31 14:14:04.946 +13:34:28.62 AT 2026xae 2026-08-03.27 20.15 21:25:11.950 -47:08:43.45 AT 2026xad 2026-06-19.54 20.42 00:02:18.948 +29:04:39.95 AT 2026xac 2026-07-29.51 19.76 21:35:48.554 -26:40:57.79 AT 2026xab 2026-06-16.55 20.65 20:00:04.333 -34:58:06.08 AT 2026xaa 2026-06-16.49 20.62 14:56:06.142 +19:59:52.91 AT 2026wzz 2026-04-20.54 21.17 15:43:22.735 -12:32:40.12 AT 2026wzy 2026-01-29.65 20.48 -rw-r--r-- 1 apache apache 87K Aug 19 04:15 tns_transients_list.txt Discovery image 3 2026 08 19.37496 2461271.87496 11.69 04:43:23.91 +11:35:05.8 7255 1720 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_Tau-06-Q2b1x1_041118_TTUQ2b1x1_195112_8KpN23dG/fd_Tau-06-Q2b1x1_2026-08-19_03-59-46_20.00sec_-0.00C_LIGHT_0409.fits
