FITS images used in this processing run:

Field Tau-08-Q1b1x1 reference image: Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Field Tau-08-Q1b1x1 reference image: Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Field Tau-08-Q1b1x1 second-epoch image: Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Field Tau-08-Q1b1x1 second-epoch image: Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
First image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Last  image: 2461284.88593781 01.09.2026 09:15:35.027   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 0
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.68
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  7662
Objects passed selection criteria:  7621
Measurements per detected object (mean, median, min, max):    2.8    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.8    2.0    2    4
Average stars detected per image: 5606.75
Average stars matched: 5535 (98.7203 %)
Memory usage VmPeak:   234088 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Sep  1 04:22:02 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
First image: 2461061.69103028 21.01.2026 04:34:55.016   /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Last  image: 2461284.88593781 01.09.2026 09:15:35.027   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 11
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.39
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 10 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  46526
Objects passed selection criteria:  46425
Measurements per detected object (mean, median, min, max):    2.9    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.9    2.0    2    4
Average stars detected per image: 35531
Average stars matched: 34719.5 (97.7161 %)
Memory usage VmPeak:   269228 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Sep  1 04:22:43 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-1 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst
CAMERA_SETTINGS= TTUQ1b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ1.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/flats
FRAME_EDGE_OFFSET_PIX= 100
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Tau-08-Q1b1x1
#######################################
########### Starting Tau-08-Q1b1x1 ###########
Processing Tau-08-Q1b1x1
server tau has sufficient free disk space available: 450779 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 450779 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.png' -> 'transient_report/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits_preview.png'

Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits


renamed 'Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.png' -> 'transient_report/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits_preview.png'

Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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= 692.6543
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 582.5630
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 4790.7859
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1033.9701
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4793.3969
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1035.3280
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 6.91656
INFO:                  SECOND_EPOCH__SD_ratio= 0.001
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 23.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_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= '2026-09-01T04:14:42.1653996' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T09:14:42.1653996' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.3852102431 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T09:14:52.0680394' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.3853248609 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     64.2832352692204 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99972356161272 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     38.2858333333333 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     111.433611111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.61150273779443 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-08'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '04 17 09'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+06 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29532 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29532 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 52.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                353.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.700776 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/d_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits :)

Spent 0.467450 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/d_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2900009155273 / [degC] Focuser temperature
AMBTEMP =                 23.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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= '2026-09-01T04:15:35.0276019' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T09:15:35.0276019' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.3858220717 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T09:15:44.9281411' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.3859366667 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =      64.283235198029 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99972355705501 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     38.4602777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     111.613611111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.60534815044619 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-08'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '04 17 09'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+06 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29532 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29532 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2900009155273 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2900009155273 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 52.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 23.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                353.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.700776 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/d_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits :)

Spent 0.465700 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/d_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Previews of the CALIBRATED second-epoch images:


fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits



fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
  
SExtractor catalog cache: saved Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache
SExtractor catalog cache: saved Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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: 2461284.88532598
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty
wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty
wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits exists and is non-empty
wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image)
verification OK: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:16.928 +05:58:49.14 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits (1st new image)
verification OK: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Image size: 941.4'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:13.124 +05:58:29.33 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:13.124 +05:58:29.33
Angular distance between the image centers 0.0167 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits (2nd new image)
verification OK: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Image size: 941.4'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:10.751 +05:58:32.44 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:10.751 +05:58:32.44
Angular distance between the image centers 0.0260 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  04:17:13.124 +05:58:29.33
Second-epoch second image center 04:17:10.751 +05:58:32.44
Angular distance between the image centers 0.00987 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.JagcMV2ugf
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.RnIPFnbcKv
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits &> /tmp/tmp.zzdrGUxmk1
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits &> /tmp/tmp.C2x0t1w0WW
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Found non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat
The reference image (wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found
'wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat'
Read 8663 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg
Loaded 5018 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4111 out of 4342 total matches.
Matched with Tycho-2 4342 out of 8663 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.929700
a=0.000000 b=1.000000 c=22.929700
From vast_summary.log: estimated ref. image limiting mag.:  -7.68
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.25

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.25

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 8663 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2820 deg, Dec +0.6924 to +11.2683 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.3081 to 72.2820 deg, Dec 0.6924 to 11.2683 deg
Loaded 5018 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4111 out of 4342 total matches.
Matched with Tycho-2 4342 out of 8663 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=6.1)
Read 7732 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.2889 to 72.2642 deg, Dec +0.7253 to +11.3032 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.2889 to 72.2642 deg, Dec 0.7253 to 11.3032 deg
Loaded 5008 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 4066 out of 4298 total matches.
Matched with Tycho-2 4298 out of 7732 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=6.2)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 2.1 pix  Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 2.3 pix  fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
 2.3 pix  fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Limiting magnitude estimates:
 15.3 mag.  Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 15.1 mag.  Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 13.8 mag.  fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
 13.8 mag.  fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
All-image limiting magnitude estimate:  13.8 (SNR )  11.0 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.JagcMV2ugf (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS-calibrated image found: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Checking if the catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS catalog name: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=654, bad_region=0, passed=8663
Got 8663 stars (including 7997 good ones) from the SExtractor catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
util/solve_plate_with_UCAC5 got 8663 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 4895 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.22" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 8663 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.22" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 8663 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 8663 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24" 
Excluding outliers - 4895 stars left (next iteration limit 5384)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4895 sigma_overall_arcsec=0.251 sigma_q1_arcsec=0.314 sigma_q2_arcsec=0.238 sigma_q3_arcsec=0.230 sigma_q4_arcsec=0.212 n_q1=1399 n_q2=1092 n_q3=1452 n_q4=952 worst_quadrant_to_overall_ratio=1.251
The image catalog is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.RnIPFnbcKv (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS-calibrated image found: wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Checking if the catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS catalog name: wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=626, bad_region=0, passed=7732
Got 7732 stars (including 7100 good ones) from the SExtractor catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 7732 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 4895 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 7732 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 7732 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4895 matched stars entering correct_measured_positions(), 7732 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Excluding outliers - 4895 stars left (next iteration limit 5384)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4895 sigma_overall_arcsec=0.334 sigma_q1_arcsec=0.420 sigma_q2_arcsec=0.320 sigma_q3_arcsec=0.301 sigma_q4_arcsec=0.298 n_q1=1405 n_q2=1094 n_q3=1448 n_q4=948 worst_quadrant_to_overall_ratio=1.258
The image catalog is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.zzdrGUxmk1 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Checking if the catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS catalog name: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=290, bad_region=0, passed=3084
Got 3084 stars (including 2787 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat 
util/solve_plate_with_UCAC5 got 3084 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 451 to 509 (Dec 0.4 to 11.6)
Done reading UCAC5 zone files...
Matched 2729 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2728 matched stars entering correct_measured_positions(), 2728 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2728 matched stars entering correct_measured_positions(), 3084 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 451 to 509 (Dec 0.4 to 11.6)
Done reading UCAC5 zone files...
Matched 2731 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2730 matched stars entering correct_measured_positions(), 3084 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 2730 matched stars entering correct_measured_positions(), 3084 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 2730 stars left (next iteration limit 3000)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2730 robust_rms=11.622 arcsec worst_quadrant_rms=16.964 arcsec
SIP_REFIT: SIP order 3 trial: matched=2730 robust_rms=0.455 arcsec worst_quadrant_rms=0.489 arcsec
SIP_REFIT: SIP order 5 trial: matched=2730 robust_rms=0.318 arcsec worst_quadrant_rms=0.369 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2730 robust_rms_before=0.954 arcsec robust_rms_before_corrected=0.311 arcsec robust_rms_after=0.318 arcsec worst_quadrant_rms_before=0.346 worst_quadrant_rms_after=0.369
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.346 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits N_match=2730 sigma_overall_arcsec=0.328 sigma_q1_arcsec=0.317 sigma_q2_arcsec=0.368 sigma_q3_arcsec=0.322 sigma_q4_arcsec=0.302 n_q1=539 n_q2=852 n_q3=575 n_q4=764 worst_quadrant_to_overall_ratio=1.123
The image catalog is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits -region wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.C2x0t1w0WW (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Checking if the catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS catalog name: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=284, bad_region=0, passed=3094
Got 3094 stars (including 2802 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat 
util/solve_plate_with_UCAC5 got 3094 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 451 to 509 (Dec 0.4 to 11.6)
Done reading UCAC5 zone files...
Matched 2743 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2742 matched stars entering correct_measured_positions(), 2742 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2742 matched stars entering correct_measured_positions(), 3094 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 451 to 509 (Dec 0.4 to 11.6)
Done reading UCAC5 zone files...
Matched 2744 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2742 matched stars entering correct_measured_positions(), 3094 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 2742 matched stars entering correct_measured_positions(), 3094 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 2742 stars left (next iteration limit 3016)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=2742 robust_rms=11.585 arcsec worst_quadrant_rms=16.768 arcsec
SIP_REFIT: SIP order 3 trial: matched=2742 robust_rms=0.480 arcsec worst_quadrant_rms=0.498 arcsec
SIP_REFIT: SIP order 5 trial: matched=2742 robust_rms=0.306 arcsec worst_quadrant_rms=0.328 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=2742 robust_rms_before=0.958 arcsec robust_rms_before_corrected=0.296 arcsec robust_rms_after=0.306 arcsec worst_quadrant_rms_before=0.326 worst_quadrant_rms_after=0.328
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.326 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits N_match=2742 sigma_overall_arcsec=0.315 sigma_q1_arcsec=0.303 sigma_q2_arcsec=0.325 sigma_q3_arcsec=0.304 sigma_q4_arcsec=0.313 n_q1=533 n_q2=856 n_q3=589 n_q4=764 worst_quadrant_to_overall_ratio=1.035
The image catalog is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits -region wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits to local_wcs_cache/
'wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'local_wcs_cache/wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits'
Saving the final (post-refit) wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits to local_wcs_cache/
'wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'local_wcs_cache/wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits'
Saving the final (post-refit) wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits to local_wcs_cache/
'wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits'
Saving the final (post-refit) wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits to local_wcs_cache/
'wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits' -> 'local_wcs_cache/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits sigma_overall=0.251 worst_q_ratio=1.251
ref2=Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits sigma_overall=0.334 worst_q_ratio=1.258
new1=fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits sigma_overall=0.328 worst_q_ratio=1.123
new2=fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits sigma_overall=0.315 worst_q_ratio=1.035
reference average sigma_overall=0.2925 worst_q_ratio=1.2545
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193_astrometric_residuals.png (4895 matched stars from wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.22 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108_astrometric_residuals.png (4895 matched stars from wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408_astrometric_residuals.png (2730 matched stars from wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409_astrometric_residuals.png (2742 matched stars from wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits'
Saving fully-calibrated image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits'
Preparing the HTML report for the field Tau-08-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Tau-08-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
  
SExtractor catalog cache: saved Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.cat to cache
SExtractor catalog cache: saved Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Creating symlink local_wcs_cache/wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits exists and is non-empty
wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits exists and is non-empty
wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits exists and is non-empty
wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (1st reference image)
verification OK: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Image size: 941.6'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:16.928 +05:58:49.14 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits (1st new image)
verification OK: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Image size: 941.4'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:13.124 +05:58:29.33 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:13.124 +05:58:29.33
Angular distance between the image centers 0.0167 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits (2nd new image)
verification OK: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Image size: 941.4'x626.7'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 04:17:10.751 +05:58:32.44 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 04:17:16.928 +05:58:49.14
Second-epoch image center 04:17:10.751 +05:58:32.44
Angular distance between the image centers 0.0260 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  04:17:13.124 +05:58:29.33
Second-epoch second image center 04:17:10.751 +05:58:32.44
Angular distance between the image centers 0.00987 deg.
###################################
Running solve_plate_with_UCAC5...
Preparing for a parallel run
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits &> /tmp/tmp.FWyBBM4cOx
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits &> /tmp/tmp.mO1XmxJNJD
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits &> /tmp/tmp.bzO5hCPKDj
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits &> /tmp/tmp.CXZCHMpoHK
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
____ Start of magnitude calibration ____
PHOTOMETRIC_CALIBRATION=TYCHO2_V
Calibrating the magnitude scale with Tycho-2 stars
util/transients/transient_factory_test31.sh is checking for the presence of non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
wait (drain background util/solve_plate_with_UCAC5 jobs before Tycho-2 calibration -- avoids wcs_.fits write race)
Tycho-2 catalog is found at lib/catalogs/tycho2
Tycho-2 catalog and the derived bright star exclusion list are ready
Checking for the presence of non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Found non-empty wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits and wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat
The reference image (wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits) and catalog (wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat) found
'wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat' -> 'wcsmag.cat'
Read 52195 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg
Loaded 5032 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3858 out of 4399 total matches.
Matched with Tycho-2 4399 out of 52195 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.803250
a=0.000000 b=1.000000 c=22.803250
From vast_summary.log: estimated ref. image limiting mag.:  -7.39
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.41

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

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 52195 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.3081 to 72.2950 deg, Dec +0.6737 to +11.2686 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.3081 to 72.2950 deg, Dec 0.6737 to 11.2686 deg
Loaded 5032 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3858 out of 4399 total matches.
Matched with Tycho-2 4399 out of 52195 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -> calib.txt_param_ref_wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (aperture=4.7)
Read 48772 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 56.2863 to 72.2642 deg, Dec +0.7157 to +11.3031 deg
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.00
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.01
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.02
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.03
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.04
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.05
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.06
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.07
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.08
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.09
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.10
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.11
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.12
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.13
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.14
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.15
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.16
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.17
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.18
Reading Tycho2 catalog file lib/catalogs/tycho2/tyc2.dat.19
Tycho-2 catalog search boundaries: RA 56.2863 to 72.2642 deg, Dec 0.7157 to 11.3031 deg
Loaded 5014 Tycho-2 stars within the image boundaries (VT and BT non-zero).
Relation between the catalog and instrumental magnitudes is written to calib.txt
Stars used for magnitude calibration (good matches): 3858 out of 4392 total matches.
Matched with Tycho-2 4392 out of 48772 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Forced-photometry filter: calibrated wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -> calib.txt_param_ref_wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (aperture=4.7)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 10 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 1.9 pix  Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 2.2 pix  fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
 2.3 pix  fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Limiting magnitude estimates:
 15.4 mag.  Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
 15.3 mag.  Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
 14.0 mag.  fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
 14.0 mag.  fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
All-image limiting magnitude estimate:  14.0 (SNR )  13.4 (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.FWyBBM4cOx (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits' -> 'wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS-calibrated image found: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
Checking if the catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits
WCS catalog name: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=11, blended=2672, bad_region=14, passed=52184
Got 52184 stars (including 49407 good ones) from the SExtractor catalog wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat 
util/solve_plate_with_UCAC5 got 52184 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4908 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4904 matched stars entering correct_measured_positions(), 4904 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4904 matched stars entering correct_measured_positions(), 52184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4908 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4904 matched stars entering correct_measured_positions(), 52184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.23" 
Accuracy estimation diagnostic: 4904 matched stars entering correct_measured_positions(), 52184 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.24" 
Excluding outliers - 4904 stars left (next iteration limit 5394)
Stop iterations.


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

SIP_REFIT: wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits N_match=4904 sigma_overall_arcsec=0.244 sigma_q1_arcsec=0.302 sigma_q2_arcsec=0.244 sigma_q3_arcsec=0.218 sigma_q4_arcsec=0.215 n_q1=1397 n_q2=1087 n_q3=1447 n_q4=973 worst_quadrant_to_overall_ratio=1.241
The image catalog is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits -region wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.mO1XmxJNJD (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits' -> 'wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits'
This WCS solution (astrometrynet) will be kept as is, not refit by util/solve_plate_with_UCAC5
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS_IMAGE_NAME=wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS-calibrated image found: wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
Checking if the catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits alredy exist and is non-empty...
Catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat corresponding to the image wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits
WCS catalog name: wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=15, blended=2468, bad_region=1, passed=48757
Got 48757 stars (including 46206 good ones) from the SExtractor catalog wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat 
util/solve_plate_with_UCAC5 got 48757 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.8'
Seting catalog search parameters based on the expected field of view 941.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013081 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010464 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4907 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 4903 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 48757 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4907 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 48757 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 48757 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4903 stars left (next iteration limit 5393)
Stop iterations.


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

SIP_REFIT: wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits N_match=4903 sigma_overall_arcsec=0.327 sigma_q1_arcsec=0.407 sigma_q2_arcsec=0.325 sigma_q3_arcsec=0.296 sigma_q4_arcsec=0.285 n_q1=1406 n_q2=1097 n_q3=1440 n_q4=960 worst_quadrant_to_overall_ratio=1.246
The image catalog is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits -region wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.bzO5hCPKDj (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Checking if the catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
WCS catalog name: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=1, no_mag_err=0, low_SNR=4, blended=592, bad_region=1, passed=21158
Got 21158 stars (including 20530 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat 
util/solve_plate_with_UCAC5 got 21158 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 451 to 509 (Dec 0.3 to 11.6)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 4899 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 21158 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

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 451 to 509 (Dec 0.3 to 11.6)
Done reading UCAC5 zone files...
Matched 4901 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 21158 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4899 matched stars entering correct_measured_positions(), 21158 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4899 stars left (next iteration limit 5388)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_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=4899 robust_rms=11.109 arcsec worst_quadrant_rms=15.712 arcsec
SIP_REFIT: SIP order 3 trial: matched=4899 robust_rms=0.477 arcsec worst_quadrant_rms=0.515 arcsec
SIP_REFIT: SIP order 5 trial: matched=4899 robust_rms=0.347 arcsec worst_quadrant_rms=0.395 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4899 robust_rms_before=0.963 arcsec robust_rms_before_corrected=0.335 arcsec robust_rms_after=0.347 arcsec worst_quadrant_rms_before=0.368 worst_quadrant_rms_after=0.395
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.368 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits N_match=4899 sigma_overall_arcsec=0.338 sigma_q1_arcsec=0.332 sigma_q2_arcsec=0.374 sigma_q3_arcsec=0.328 sigma_q4_arcsec=0.308 n_q1=976 n_q2=1420 n_q3=1096 n_q4=1407 worst_quadrant_to_overall_ratio=1.107
The image catalog is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits -region wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.CXZCHMpoHK (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS_IMAGE_NAME=wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS-calibrated image found: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Checking if the catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat corresponding to the image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
WCS catalog name: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=585, bad_region=1, passed=20974
Got 20974 stars (including 20358 good ones) from the SExtractor catalog wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat 
util/solve_plate_with_UCAC5 got 20974 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.4'
Seting catalog search parameters based on the expected field of view 941.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013075 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010460 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 451 to 509 (Dec 0.3 to 11.6)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 4900 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 20974 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 451 to 509 (Dec 0.3 to 11.6)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 20974 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 20974 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Excluding outliers - 4900 stars left (next iteration limit 5390)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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=4900 robust_rms=11.228 arcsec worst_quadrant_rms=15.651 arcsec
SIP_REFIT: SIP order 3 trial: matched=4900 robust_rms=0.501 arcsec worst_quadrant_rms=0.524 arcsec
SIP_REFIT: SIP order 5 trial: matched=4900 robust_rms=0.337 arcsec worst_quadrant_rms=0.367 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4900 robust_rms_before=0.965 arcsec robust_rms_before_corrected=0.324 arcsec robust_rms_after=0.337 arcsec worst_quadrant_rms_before=0.348 worst_quadrant_rms_after=0.367
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.348 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits N_match=4900 sigma_overall_arcsec=0.327 sigma_q1_arcsec=0.324 sigma_q2_arcsec=0.352 sigma_q3_arcsec=0.321 sigma_q4_arcsec=0.316 n_q1=978 n_q2=1410 n_q3=1101 n_q4=1411 worst_quadrant_to_overall_ratio=1.079
The image catalog is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits -region wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Saving fully-calibrated image wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_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_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/wcs_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits
Preparing the HTML report for the field Tau-08-Q1b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:37:10.44 +02:40:16.2:  13.12 +/- 0.03  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:48:49.76 +08:28:45.0:  12.38 +/- 0.02  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:07:55.13 +01:18:35.8:  11.67 +/- 0.01  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:18:39.63 +04:45:41.6:  13.45 +/- 0.03  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 03:56:32.98 +03:03:04.0:  13.09 +/- 0.03  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:24:09.09 +00:56:10.7:  12.89 +/- 0.02  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-01-20_22-34-55_20.00sec_-14.90C_LIGHT_0193.fits at 04:26:53.71 +07:07:14.4:  12.76 +/- 0.02  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:48:49.76 +08:28:45.0:  12.31 +/- 0.02  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:07:55.13 +01:18:35.8:  11.71 +/- 0.01  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:24:09.09 +00:56:10.7:  12.89 +/- 0.02  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:18:39.63 +04:45:41.6:  13.41 +/- 0.04  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 03:56:32.98 +03:03:04.0:  12.94 +/- 0.03  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:37:10.44 +02:40:16.2:  13.16 +/- 0.04  detection
Forced photometry on wcs_Tau-08-Q1b1x1_2026-02-21_21-44-23_20.00sec_-14.90C_LIGHT_0108.fits at 04:26:53.71 +07:07:14.4:  12.80 +/- 0.02  detection
Forced photometry reference-image weighted average:  11.69 +/- 0.01
Forced photometry reference-image weighted average:  13.43 +/- 0.02
Forced photometry reference-image weighted average:  12.89 +/- 0.02
Forced photometry reference-image weighted average:  12.35 +/- 0.01
Forced photometry reference-image weighted average:  13.02 +/- 0.02
Forced photometry filter REJECTED candidate at 04:07:55.13 +01:18:35.8: ref_mag=11.69 +/- 0.01 new_mean_mag=12.1090 delta=-0.42 (need > 0.90)
Forced photometry filter REJECTED candidate at 04:18:39.63 +04:45:41.6: ref_mag=13.43 +/- 0.02 new_mean_mag=13.4160 delta=0.02 (need > 0.90)
Forced photometry filter REJECTED candidate at 04:48:49.76 +08:28:45.0: ref_mag=12.35 +/- 0.01 new_mean_mag=12.4707 delta=-0.12 (need > 0.90)
Forced photometry filter REJECTED candidate at 04:24:09.09 +00:56:10.7: ref_mag=12.89 +/- 0.02 new_mean_mag=13.4105 delta=-0.52 (need > 0.90)
Forced photometry filter REJECTED candidate at 03:56:32.98 +03:03:04.0: ref_mag=13.02 +/- 0.02 new_mean_mag=12.9558 delta=0.06 (need > 0.90)
Forced photometry reference-image weighted average:  13.14 +/- 0.02
Forced photometry reference-image weighted average:  12.78 +/- 0.01
Forced photometry filter REJECTED candidate at 04:26:53.71 +07:07:14.4: ref_mag=12.78 +/- 0.01 new_mean_mag=12.7008 delta=0.08 (need > 0.90)
Forced photometry filter REJECTED candidate at 04:37:10.44 +02:40:16.2: ref_mag=13.14 +/- 0.02 new_mean_mag=13.2046 delta=-0.07 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
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Considering the candidate 64762_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 64762_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    13.39    04:24:08.99 +00:56:08.7   6009 0217   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    13.45    04:24:09.18 +00:56:12.6   6015 0218   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 64764_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 64764_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    12.08    04:07:55.11 +01:18:35.9   3547 0304   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    12.14    04:07:55.15 +01:18:35.7   3553 0303   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 65047_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 65047_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    12.47    04:48:49.74 +08:28:45.0   9442 5026   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    12.47    04:48:49.77 +08:28:45.0   9449 5026   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 65083_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 65083_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    12.70    04:26:53.71 +07:07:14.8   6192 3971   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    12.70    04:26:53.72 +07:07:13.9   6198 3970   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 65140_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 65140_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    12.97    03:56:32.98 +03:03:04.5   1773 1263   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    12.95    03:56:32.98 +03:03:03.6   1779 1263   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 65250_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 65250_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    13.22    04:37:10.44 +02:40:15.9   7913 1385   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    13.20    04:37:10.43 +02:40:16.4   7919 1385   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 65294_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 65294_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 1     2026 09 01.38533    2461284.88533    13.45    04:18:39.65 +04:45:41.6   5046 2479   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-14-42_20.00sec_-0.00C_LIGHTs_0408.fits
Discovery image 2     2026 09 01.38594    2461284.88594    13.39    04:18:39.62 +04:45:41.6   5052 2479   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

  
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Considering the candidate 07665_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 07665_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 3     2026 09 01.38594    2461284.88594    12.02    04:21:44.86 +09:36:32.7   5342 5422   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

Rejecting candidate due to large distance (34.6") between the two second-epoch detections
  
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Considering the candidate 24664_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 24664_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 3     2026 09 01.38594    2461284.88594    12.66    04:23:23.99 +06:34:33.2   5696 3611   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

**** FOUND  04:23:24.04 +06:34:33.9 in the exclusion list exclusion_list.txt ****
  
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Considering the candidate 46013_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409
The candidate 46013_fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409 did not pass the final checks
Discovery image 3     2026 09 01.38594    2461284.88594    11.80    04:17:39.19 +03:09:22.2   4957 1504   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Tau-08-Q1b1x1_041936_TTUQ1b1x1_2200819_sqiwV0P7/fd_Tau-08-Q1b1x1_2026-09-01_04-15-35_20.00sec_-0.00C_LIGHTs_0409.fits

Rejecting candidate due to large distance (35.1") between the two second-epoch detections
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Tau-08-Q1b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Tau-08-Q1b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ1.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461284.88532598 -observatory V36
10:59:54.98 +08:05:27.4 Mercury (-1.4mag)
13:20:17.74 -12:10:12.7 Venus (-4.6mag)
06:57:52.09 +23:18:42.9 Mars (1.2mag)
09:04:07.15 +17:18:09.6 Jupiter (-1.8mag)
00:53:01.10 +02:47:53.6 Saturn (0.5mag)
04:13:33.10 +21:01:38.4 Uranus (5.7mag)
00:14:17.42 +00:00:27.9 Neptune (7.7mag)
20:26:01.39 -23:38:09.1 Pluto (14.5mag)
01:46:53.99 +15:36:46.4 Moon (-11.4mag)
-rw-r--r-- 1 apache apache 363 Sep  1 04:22 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461284.88532598:
09:04:12.15 +17:17:46.8 Io (6.2mag)
09:04:03.87 +17:18:26.2 Europa (6.3mag)
09:03:59.87 +17:18:44.1 Ganymede (5.6mag)
09:04:16.00 +17:17:26.3 Callisto (6.9mag)
09:01:43.53 +17:31:49.5 Himalia (15.7mag)
09:04:08.59 +17:18:03.8 Thebe (16.6mag)
09:01:23.18 +17:26:16.2 Elara (17.7mag)
09:08:07.87 +16:47:38.7 Pasiphae (17.9mag)
09:05:37.72 +17:34:20.3 Carme (19.0mag)
00:53:11.79 +02:47:26.0 Titan (8.3mag)
00:53:00.32 +02:47:58.8 Rhea (9.6mag)
00:53:29.56 +02:50:35.5 Iapetus (11.0mag)
00:52:53.26 +02:47:18.7 Hyperion (14.4mag)
00:51:54.25 +02:38:12.7 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  1 04:22 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461284.88532598:
21:18:48.56 -05:01:57.4 JWST
16:30:51.50 +45:18:15.2 Chandra
11:43:31.08 -61:01:43.1 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  1 04:22 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461284.88532598 -observatory V36
03:36:30.56 +19:02:37.7 17.4mag P/1996 R2 (Lagerkvist)
18:01:11.48 -34:19:00.6 14.3mag P/2010 H2 (Vales)
07:14:51.67 -69:59:03.6 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:54.60 +33:33:00.2 17.7mag C/2017 K2 (PANSTARRS)
04:41:48.33 +44:31:14.4 15.5mag P/2021 N1 (ZTF)
04:41:48.33 +44:31:14.4 15.5mag P/2021 N1 (ZTF)
22:18:17.65 +29:21:32.1 17.4mag C/2022 E2 (ATLAS)
07:05:31.14 +26:05:28.7 16.8mag C/2022 N2 (PANSTARRS)
10:44:01.89 +27:26:49.2 17.0mag C/2022 QE78 (ATLAS)
09:44:52.60 +05:15:47.2 18.0mag C/2022 R6 (PANSTARRS)
20:43:36.61 +62:15:40.9 18.0mag C/2023 H5 (Lemmon)
15:31:29.42 -15:07:41.4 14.8mag C/2023 R1 (PANSTARRS)
08:33:02.42 +32:32:40.1 15.7mag C/2024 E1 (Wierzchos)
15:06:00.20 +15:23:32.5 17.9mag C/2024 G6 (ATLAS)
18:37:48.07 +43:21:47.5 13.7mag C/2024 J3 (ATLAS)
20:34:30.26 +49:33:10.0 17.5mag C/2024 R4 (PANSTARRS)
05:32:15.32 -12:57:29.4 15.2mag C/2024 T5 (ATLAS)
07:09:21.86 +19:42:25.4 17.8mag C/2025 J1 (Borisov)
11:08:36.19 +19:13:22.2 16.9mag C/2025 V2 (Rankin)
13:14:53.13 +00:35:12.5 16.8mag C/2025 Y1 (ATLAS)
16:27:25.17 +74:56:47.2 16.2mag C/2026 A2 (Bok)
03:08:10.40 +46:16:33.2 17.4mag C/2026 B2 (Sun-Gao)
12:07:50.62 +10:47:39.6 17.5mag A/2026 E1
22:21:04.54 -34:24:33.3 13.2mag 10P/Tempel
11:44:14.58 -05:01:52.0 16.3mag 29P/Schwassmann-Wachmann
11:56:39.69 -03:12:44.1 17.5mag 63P/Wild
00:47:41.38 -06:41:40.3 15.4mag 65P/Gunn
06:27:38.01 +19:40:20.2 17.1mag 78P/Gehrels
03:16:17.99 +14:53:13.6 16.7mag 88P/Howell
05:18:54.37 +26:20:53.8 17.6mag 112P/Urata-Niijima
07:13:57.58 +26:14:46.7 16.0mag 114P/Wiseman-Skiff
10:14:35.93 +22:06:02.4 14.9mag 123P/West-Hartley
12:33:44.46 -19:15:05.9 17.4mag 124P/Mrkos
06:10:02.97 +20:48:29.0 15.9mag 128P/Shoemaker-Holt
23:55:19.22 +02:40:43.4 17.4mag 139P/Vaisala-Oterma
02:50:53.46 -18:07:54.4 15.5mag 161P/Hartley-IRAS
09:54:22.01 +18:14:13.2 11.9mag 169P/NEAT
03:18:44.69 +08:54:24.4 14.4mag 220P/McNaught
04:31:48.38 +34:23:53.5 15.2mag 260P/McNaught
08:15:44.51 +36:17:15.2 17.3mag 295P/LINEAR
15:21:34.96 +00:25:04.5 17.9mag 391P/Kowalski
09:22:37.94 +17:09:13.4 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.1K Sep  1 04:22 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:32.95 -68:48:30.00  ASASSN-26no  2026-05-24 8.41
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
-rw-r--r-- 1 apache apache 5.7K Sep  1 04:22 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Sep  1 04:22 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
00:13:38.500 +03:45:21.38  AT 2026xzq  2026-08-06.71 19.82
15:44:05.663 +62:31:02.12  AT 2026xzp  2026-08-07.30 19.137
15:23:07.561 +26:55:05.00  SN 2026xzo  2026-08-07.29 19.228
13:27:56.786 -31:29:17.86  AT 2026xzn  2026-08-06.74 18.953
23:05:36.390 -03:36:56.91  AT 2026xzm  2026-08-07.09 19.428
15:24:13.077 +54:48:58.02  AT 2026xzl  2026-08-04.29 19.12
05:43:45.299 -12:31:19.63  AT 2026xzk  2026-01-11.34 20.48
08:43:05.547 +25:32:19.55  AT 2026xzj  2026-01-11.58 20.89
16:22:31.145 +09:33:33.30  AT 2026xzi  2026-08-05.29 20.61
17:12:21.291 +21:02:54.44  AT 2026xzh  2026-08-05.34 20.95
16:19:36.299 +11:57:03.80  AT 2026xzg  2026-08-05.29 20.16
16:33:56.913 +13:58:08.26  AT 2026xzf  2026-08-05.29 21.06
17:03:57.056 +04:27:02.47  AT 2026xze  2026-08-05.28 20.78
17:51:27.713 +19:57:36.91  AT 2026xzd  2026-08-05.34 20.73
16:58:34.750 +12:37:35.05  AT 2026xzc  2026-08-05.29 21.81
16:57:45.366 -04:44:07.55  AT 2026xzb  2026-08-06.80 18.89
01:01:40.818 +17:24:52.10  AT 2026xza  2026-08-07.04 19.13
02:48:31.834 +11:32:30.95  AT 2026xyz  2026-07-27.60 20.39
02:42:23.530 +11:34:23.14  AT 2026xyy  2026-07-27.60 20.66
00:37:50.285 +37:00:52.41  AT 2026xyx  2026-07-26.50 21.17
-rw-r--r-- 1 apache apache 88K Sep  1 04:22 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Tue Sep  1 04:21:30 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 4s (0.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 22s (0.37 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 6s (0.10 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 34s (0.57 min)
TIMING SExtractor: 5 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 11s (0.18 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 0s (0.00 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 22s (0.37 min)
FIELD_Tau-08-Q1b1x1: 67s (1.12 min)
=======================================
TOTAL_RUNTIME: 84s (1.40 min)
Finished: Tue Sep  1 04:22:54 CDT 2026