FITS images used in this processing run:

Field Tau-07-Q2b1x1 reference image: Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Field Tau-07-Q2b1x1 reference image: Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Field Tau-07-Q2b1x1 second-epoch image: Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Field Tau-07-Q2b1x1 second-epoch image: Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461049.66635515 09.01.2026 03:59:23.085   /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
First image: 2461049.66635515 09.01.2026 03:59:23.085   /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Last  image: 2461270.88208617 18.08.2026 09:10:02.245   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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.:  -7.59
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):  6004
Objects passed selection criteria:  5989
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: 4570.75
Average stars matched: 4219.75 (92.3207 %)
Memory usage VmPeak:   232012 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Aug 18 04:30:25 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: 2461049.66635515 09.01.2026 03:59:23.085   /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
First image: 2461049.66635515 09.01.2026 03:59:23.085   /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Last  image: 2461270.88208617 18.08.2026 09:10:02.245   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 13
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.28
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: 12 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):  34792
Objects passed selection criteria:  34698
Measurements per detected object (mean, median, min, max):    3.0    3.0    2    4
Measurements per selected object (mean, median, min, max):    3.0    3.0    2    4
Average stars detected per image: 27374.5
Average stars matched: 25322.2 (92.5031 %)
Memory usage VmPeak:   256108 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Aug 18 04:31:08 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Tau-07-Q2b1x1
#######################################
########### Starting Tau-07-Q2b1x1 ###########
Processing Tau-07-Q2b1x1
server tau has sufficient free disk space available: 331098 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 331098 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.png' -> 'transient_report/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits_preview.png'

Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits


renamed 'Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.png' -> 'transient_report/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits_preview.png'

Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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= 611.0058
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 549.3758
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1246.8049
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 513.5281
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1244.8924
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 513.4661
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.04058
INFO:                  SECOND_EPOCH__SD_ratio= 0.000
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     19.6800003051758 / [degC] Focuser temperature
AMBTEMP =                 22.2 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-18T04:08:58.7834246' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-18T09:08:58.7834246' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61270.3812359143 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-18T09:09:08.6834570' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61270.3813504977 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                  0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     51.4273437041665 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99979208059603 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     36.4536111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     109.559166666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.68006933409677 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-07'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 25 43'           / [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  =                20435 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20435 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     19.6800003051758 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     19.6800003051758 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               904.61 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 22.2 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 36.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             2.200176 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/d_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits :)

Spent 0.498467 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/d_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     19.6100006103516 / [degC] Focuser temperature
AMBTEMP =                 22.2 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-18T04:10:02.2456205' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-18T09:10:02.2456205' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61270.3819704284 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-18T09:10:12.1450639' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61270.3820850118 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     51.4273436154738 / [deg] RA of telescope" status=0
Record 32: "DEC     =     5.99979206440401 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     36.6627777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     109.763055555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.67186218993654 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Tau-07'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 25 43'           / [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  =                20435 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20435 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     19.6100006103516 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     19.6100006103516 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 11.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 49.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               904.61 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 22.2 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 36.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             2.200176 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/d_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits :)

Spent 0.495176 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/d_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Previews of the CALIBRATED second-epoch images:


fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits



fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits




Updating neverexclude_list.txt
'/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt'
Choosing bad regions list
'/var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst' -> 'bad_region.lst'
wait
*------ default.sex.telephoto_lens_onlybrightstars_v1 ------*
'default.sex.telephoto_lens_onlybrightstars_v1' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_onlybrightstars_v1

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
  
SExtractor catalog cache: saved Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.cat to cache
SExtractor catalog cache: saved Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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: 2461270.88135165
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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits exists and is non-empty
wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits exists and is non-empty
wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits exists and is non-empty
wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (1st reference image)
verification OK: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Image size: 941.5'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: 03:25:45.853 +05:58:58.33 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-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits (1st new image)
verification OK: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Image size: 937.4'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 03:25:22.756 +06:00:45.03 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:25:45.853 +05:58:58.33
Second-epoch image center 03:25:22.756 +06:00:45.03
Angular distance between the image centers 0.1002 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits (2nd new image)
verification OK: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Image size: 937.4'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 03:25:25.335 +06:00:18.80 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:25:45.853 +05:58:58.33
Second-epoch image center 03:25:25.335 +06:00:18.80
Angular distance between the image centers 0.0879 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  03:25:22.756 +06:00:45.03
Second-epoch second image center 03:25:25.335 +06:00:18.80
Angular distance between the image centers 0.01293 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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits &> /tmp/tmp.KwEx60jtCL
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits &> /tmp/tmp.1eb2wiazSm
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits &> /tmp/tmp.EwC5sSWQ3h
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits &> /tmp/tmp.MjTtdGNTRd
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
Found non-empty wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat
The reference image (wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits) and catalog (wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat) found
'wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat' -> 'wcsmag.cat'
Read 6894 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4390 to 59.4125 deg, Dec +0.6809 to +11.2623 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 43.4390 to 59.4125 deg, Dec 0.6809 to 11.2623 deg
Loaded 4344 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): 3518 out of 3704 total matches.
Matched with Tycho-2 3704 out of 6894 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.929400
a=0.000000 b=1.000000 c=22.929400
From vast_summary.log: estimated ref. image limiting mag.:  -7.59
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.34

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.34

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 6894 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4390 to 59.4125 deg, Dec +0.6809 to +11.2623 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 43.4390 to 59.4125 deg, Dec 0.6809 to 11.2623 deg
Loaded 4344 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): 3518 out of 3704 total matches.
Matched with Tycho-2 3704 out of 6894 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Forced-photometry filter: calibrated wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits -> calib.txt_param_ref_wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (aperture=6.0)
Read 6511 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4391 to 59.4125 deg, Dec +0.6696 to +11.2487 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 43.4391 to 59.4125 deg, Dec 0.6696 to 11.2487 deg
Loaded 4348 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): 3541 out of 3691 total matches.
Matched with Tycho-2 3691 out of 6511 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Forced-photometry filter: calibrated wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits -> calib.txt_param_ref_wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
 2.1 pix  Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
 2.3 pix  fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
 2.4 pix  fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Limiting magnitude estimates:
 15.3 mag.  Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
 15.2 mag.  Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
 14.9 mag.  fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
 14.9 mag.  fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
All-image limiting magnitude estimate:  14.9 (SNR )  11.9 (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.KwEx60jtCL (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits' -> 'wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS_IMAGE_NAME=wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS-calibrated image found: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Checking if the catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits alredy exist and is non-empty...
Catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS catalog name: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=524, bad_region=1590, passed=6894
Got 6894 stars (including 4892 good ones) from the SExtractor catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
util/solve_plate_with_UCAC5 got 6894 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (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 0.010461 (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 4758 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4754 matched stars entering correct_measured_positions(), 4754 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4754 matched stars entering correct_measured_positions(), 5638 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4757 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4753 matched stars entering correct_measured_positions(), 5638 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4753 matched stars entering correct_measured_positions(), 5638 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4753 stars left (next iteration limit 5229)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits N_match=4753 sigma_overall_arcsec=0.304 sigma_q1_arcsec=0.380 sigma_q2_arcsec=0.320 sigma_q3_arcsec=0.270 sigma_q4_arcsec=0.250 n_q1=1530 n_q2=694 n_q3=1636 n_q4=893 worst_quadrant_to_overall_ratio=1.252
The image catalog is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits -region wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.1eb2wiazSm (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits' -> 'wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS_IMAGE_NAME=wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS-calibrated image found: wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Checking if the catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits alredy exist and is non-empty...
Catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS catalog name: wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=474, bad_region=1522, passed=6511
Got 6511 stars (including 4629 good ones) from the SExtractor catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat 
util/solve_plate_with_UCAC5 got 6511 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 11.2)
Done reading UCAC5 zone files...
Matched 4512 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4508 matched stars entering correct_measured_positions(), 4508 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4508 matched stars entering correct_measured_positions(), 5309 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.2)
Done reading UCAC5 zone files...
Matched 4512 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4508 matched stars entering correct_measured_positions(), 5309 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Accuracy estimation diagnostic: 4508 matched stars entering correct_measured_positions(), 5309 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4508 stars left (next iteration limit 4958)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits N_match=4508 sigma_overall_arcsec=0.305 sigma_q1_arcsec=0.372 sigma_q2_arcsec=0.313 sigma_q3_arcsec=0.278 sigma_q4_arcsec=0.247 n_q1=1470 n_q2=658 n_q3=1531 n_q4=849 worst_quadrant_to_overall_ratio=1.220
The image catalog is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits -region wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.EwC5sSWQ3h (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS_IMAGE_NAME=wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS-calibrated image found: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Checking if the catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS catalog name: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=319, bad_region=1305, passed=5333
Got 5333 stars (including 3764 good ones) from the SExtractor catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat 
util/solve_plate_with_UCAC5 got 5333 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 3679 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3672 matched stars entering correct_measured_positions(), 3672 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3672 matched stars entering correct_measured_positions(), 4294 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 3679 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3672 matched stars entering correct_measured_positions(), 4294 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 3672 matched stars entering correct_measured_positions(), 4294 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 3672 stars left (next iteration limit 4039)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3672 robust_rms=6.999 arcsec worst_quadrant_rms=10.124 arcsec
SIP_REFIT: SIP order 3 trial: matched=3672 robust_rms=0.438 arcsec worst_quadrant_rms=0.548 arcsec
SIP_REFIT: SIP order 5 trial: matched=3672 robust_rms=0.346 arcsec worst_quadrant_rms=0.379 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3672 robust_rms_before=0.949 arcsec robust_rms_before_corrected=0.334 arcsec robust_rms_after=0.346 arcsec worst_quadrant_rms_before=0.380 worst_quadrant_rms_after=0.379
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.380 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits N_match=3672 sigma_overall_arcsec=0.350 sigma_q1_arcsec=0.311 sigma_q2_arcsec=0.351 sigma_q3_arcsec=0.398 sigma_q4_arcsec=0.353 n_q1=1284 n_q2=791 n_q3=983 n_q4=614 worst_quadrant_to_overall_ratio=1.137
The image catalog is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits -region wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.MjTtdGNTRd (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS_IMAGE_NAME=wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS-calibrated image found: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Checking if the catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS catalog name: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=326, bad_region=1313, passed=5363
Got 5363 stars (including 3783 good ones) from the SExtractor catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat 
util/solve_plate_with_UCAC5 got 5363 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 3701 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3696 matched stars entering correct_measured_positions(), 3696 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3696 matched stars entering correct_measured_positions(), 4313 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 3701 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3696 matched stars entering correct_measured_positions(), 4313 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 3696 matched stars entering correct_measured_positions(), 4313 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 3696 stars left (next iteration limit 4065)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3696 robust_rms=7.082 arcsec worst_quadrant_rms=9.945 arcsec
SIP_REFIT: SIP order 3 trial: matched=3696 robust_rms=0.405 arcsec worst_quadrant_rms=0.530 arcsec
SIP_REFIT: SIP order 5 trial: matched=3696 robust_rms=0.327 arcsec worst_quadrant_rms=0.364 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3696 robust_rms_before=0.942 arcsec robust_rms_before_corrected=0.319 arcsec robust_rms_after=0.327 arcsec worst_quadrant_rms_before=0.367 worst_quadrant_rms_after=0.364
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.367 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits N_match=3696 sigma_overall_arcsec=0.330 sigma_q1_arcsec=0.301 sigma_q2_arcsec=0.307 sigma_q3_arcsec=0.393 sigma_q4_arcsec=0.320 n_q1=1289 n_q2=797 n_q3=991 n_q4=619 worst_quadrant_to_overall_ratio=1.192
The image catalog is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits -region wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Saving the final (post-refit) wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits to local_wcs_cache/
'wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits' -> 'local_wcs_cache/wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits'
Saving the final (post-refit) wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits to local_wcs_cache/
'wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits' -> 'local_wcs_cache/wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits'
Saving the final (post-refit) wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits to local_wcs_cache/
'wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits' -> 'local_wcs_cache/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits'
Saving the final (post-refit) wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits to local_wcs_cache/
'wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits' -> 'local_wcs_cache/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits sigma_overall=0.304 worst_q_ratio=1.252
ref2=Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits sigma_overall=0.305 worst_q_ratio=1.220
new1=fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits sigma_overall=0.350 worst_q_ratio=1.137
new2=fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits sigma_overall=0.330 worst_q_ratio=1.192
reference average sigma_overall=0.3045 worst_q_ratio=1.236
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129_astrometric_residuals.png (4753 matched stars from wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.27 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164_astrometric_residuals.png (4508 matched stars from wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.27 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430_astrometric_residuals.png (3672 matched stars from wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.30 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431_astrometric_residuals.png (3696 matched stars from wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits'
Saving fully-calibrated image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits'
Preparing the HTML report for the field Tau-07-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Tau-07-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
  
SExtractor catalog cache: saved Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.cat to cache
SExtractor catalog cache: saved Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Creating symlink local_wcs_cache/wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Creating symlink local_wcs_cache/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits exists and is non-empty
wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits exists and is non-empty
wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits exists and is non-empty
wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (1st reference image)
verification OK: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Image size: 941.5'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: 03:25:45.853 +05:58:58.33 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-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits (1st new image)
verification OK: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Image size: 937.4'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 03:25:22.756 +06:00:45.03 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:25:45.853 +05:58:58.33
Second-epoch image center 03:25:22.756 +06:00:45.03
Angular distance between the image centers 0.1002 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits (2nd new image)
verification OK: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Image size: 937.4'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 03:25:25.335 +06:00:18.80 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:25:45.853 +05:58:58.33
Second-epoch image center 03:25:25.335 +06:00:18.80
Angular distance between the image centers 0.0879 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  03:25:22.756 +06:00:45.03
Second-epoch second image center 03:25:25.335 +06:00:18.80
Angular distance between the image centers 0.01293 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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits &> /tmp/tmp.qferxmdGKn
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits &> /tmp/tmp.8iXYOIjoIb
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits &> /tmp/tmp.Z4xqcNysnd
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits &> /tmp/tmp.mfW9VJcIir
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Calibrating the magnitude scale
Found non-empty wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
Found non-empty wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits and wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat
The reference image (wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits) and catalog (wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat) found
'wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat' -> 'wcsmag.cat'
Read 40138 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4339 to 59.4138 deg, Dec +0.6809 to +11.2698 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 43.4339 to 59.4138 deg, Dec 0.6809 to 11.2698 deg
Loaded 4347 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): 3388 out of 3752 total matches.
Matched with Tycho-2 3752 out of 40138 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.807750
a=0.000000 b=1.000000 c=22.807750
From vast_summary.log: estimated ref. image limiting mag.:  -7.28
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.53

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.53

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 40138 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4339 to 59.4138 deg, Dec +0.6809 to +11.2698 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 43.4339 to 59.4138 deg, Dec 0.6809 to 11.2698 deg
Loaded 4347 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): 3388 out of 3752 total matches.
Matched with Tycho-2 3752 out of 40138 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Forced-photometry filter: calibrated wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits -> calib.txt_param_ref_wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (aperture=4.6)
Read 36794 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 43.4364 to 59.4140 deg, Dec +0.6695 to +11.2585 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 43.4364 to 59.4140 deg, Dec 0.6695 to 11.2585 deg
Loaded 4354 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): 3421 out of 3757 total matches.
Matched with Tycho-2 3757 out of 36794 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Forced-photometry filter: calibrated wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits -> calib.txt_param_ref_wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits (aperture=4.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 9 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.9 pix  Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
 2.0 pix  Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
 2.2 pix  fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
 2.2 pix  fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Limiting magnitude estimates:
 15.5 mag.  Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
 15.4 mag.  Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
 15.0 mag.  fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
 15.0 mag.  fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
All-image limiting magnitude estimate:  15.0 (SNR )  14.5 (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.qferxmdGKn (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits' -> 'wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS_IMAGE_NAME=wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS-calibrated image found: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
Checking if the catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits alredy exist and is non-empty...
Catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits
WCS catalog name: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=9, blended=1702, bad_region=7340, passed=40129
Got 40129 stars (including 31384 good ones) from the SExtractor catalog wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat 
util/solve_plate_with_UCAC5 got 40129 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (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 0.010461 (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 4869 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 4867 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 34352 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4869 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 34352 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 34352 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4867 stars left (next iteration limit 5353)
Stop iterations.


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

SIP_REFIT: wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.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-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits N_match=4867 sigma_overall_arcsec=0.294 sigma_q1_arcsec=0.374 sigma_q2_arcsec=0.313 sigma_q3_arcsec=0.259 sigma_q4_arcsec=0.238 n_q1=1596 n_q2=695 n_q3=1675 n_q4=901 worst_quadrant_to_overall_ratio=1.274
The image catalog is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits -region wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.8iXYOIjoIb (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits' -> 'wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS_IMAGE_NAME=wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS-calibrated image found: wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
Checking if the catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits alredy exist and is non-empty...
Catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat corresponding to the image wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits
WCS catalog name: wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=11, blended=1580, bad_region=6747, passed=36783
Got 36783 stars (including 28751 good ones) from the SExtractor catalog wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat 
util/solve_plate_with_UCAC5 got 36783 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 4870 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 4867 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 31491 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4870 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 31491 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4867 matched stars entering correct_measured_positions(), 31491 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4867 stars left (next iteration limit 5353)
Stop iterations.


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

SIP_REFIT: wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.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-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits N_match=4867 sigma_overall_arcsec=0.296 sigma_q1_arcsec=0.346 sigma_q2_arcsec=0.305 sigma_q3_arcsec=0.271 sigma_q4_arcsec=0.257 n_q1=1595 n_q2=712 n_q3=1658 n_q4=902 worst_quadrant_to_overall_ratio=1.169
The image catalog is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits -region wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.Z4xqcNysnd (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS_IMAGE_NAME=wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS-calibrated image found: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Checking if the catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
WCS catalog name: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=12, blended=1096, bad_region=5639, passed=29379
Got 29379 stars (including 22950 good ones) from the SExtractor catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat 
util/solve_plate_with_UCAC5 got 29379 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 4880 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 25155 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 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 25155 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4880 matched stars entering correct_measured_positions(), 25155 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4880 stars left (next iteration limit 5368)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.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=4880 robust_rms=6.818 arcsec worst_quadrant_rms=9.154 arcsec
SIP_REFIT: SIP order 3 trial: matched=4880 robust_rms=0.441 arcsec worst_quadrant_rms=0.552 arcsec
SIP_REFIT: SIP order 5 trial: matched=4880 robust_rms=0.349 arcsec worst_quadrant_rms=0.385 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4880 robust_rms_before=0.924 arcsec robust_rms_before_corrected=0.338 arcsec robust_rms_after=0.349 arcsec worst_quadrant_rms_before=0.378 worst_quadrant_rms_after=0.385
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.378 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits N_match=4880 sigma_overall_arcsec=0.357 sigma_q1_arcsec=0.325 sigma_q2_arcsec=0.363 sigma_q3_arcsec=0.388 sigma_q4_arcsec=0.351 n_q1=1699 n_q2=1018 n_q3=1294 n_q4=869 worst_quadrant_to_overall_ratio=1.089
The image catalog is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits -region wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.mfW9VJcIir (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS_IMAGE_NAME=wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS-calibrated image found: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Checking if the catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits alredy exist and is non-empty...
Catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat corresponding to the image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
WCS catalog name: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=11, blended=1158, bad_region=5663, passed=29222
Got 29222 stars (including 22741 good ones) from the SExtractor catalog wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat 
util/solve_plate_with_UCAC5 got 29222 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4881 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 4878 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 24912 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 453 to 508 (Dec 0.7 to 11.3)
Done reading UCAC5 zone files...
Matched 4882 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 24912 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 24912 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4879 stars left (next iteration limit 5365)
Stop iterations.


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

SIP_REFIT: wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.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=4879 robust_rms=6.865 arcsec worst_quadrant_rms=9.326 arcsec
SIP_REFIT: SIP order 3 trial: matched=4879 robust_rms=0.413 arcsec worst_quadrant_rms=0.539 arcsec
SIP_REFIT: SIP order 5 trial: matched=4879 robust_rms=0.334 arcsec worst_quadrant_rms=0.367 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4879 robust_rms_before=0.924 arcsec robust_rms_before_corrected=0.326 arcsec robust_rms_after=0.334 arcsec worst_quadrant_rms_before=0.368 worst_quadrant_rms_after=0.367
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-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits N_match=4879 sigma_overall_arcsec=0.339 sigma_q1_arcsec=0.304 sigma_q2_arcsec=0.319 sigma_q3_arcsec=0.398 sigma_q4_arcsec=0.342 n_q1=1714 n_q2=1004 n_q3=1292 n_q4=869 worst_quadrant_to_overall_ratio=1.172
The image catalog is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits -region wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Saving fully-calibrated image wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/wcs_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits
Preparing the HTML report for the field Tau-07-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:09:21.11 +03:50:01.9:  15.38 +/- 0.18  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:17:44.10 +05:42:56.0:  14.17 +/- 0.06  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:29:37.26 +08:30:20.6:  15.61 +/- 0.21  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:38:26.47 +04:36:55.2:  14.35 +/- 0.07  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:22:24.86 +03:32:48.4:  15.14 +/- 0.14  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:32:36.83 +03:56:38.3:  13.98 +/- 0.05  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-08_21-59-23_20.00sec_-15.00C_LIGHT_0129.fits at 03:13:22.42 +03:13:10.3:  13.99 +/- 0.05  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:13:22.42 +03:13:10.3:  14.03 +/- 0.06  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:32:36.83 +03:56:38.3:  13.92 +/- 0.05  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:09:21.11 +03:50:01.9:  15.62 +/- 0.27  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:17:44.10 +05:42:56.0:  14.15 +/- 0.06  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:29:37.26 +08:30:20.6:  15.57 +/- 0.23  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:22:24.86 +03:32:48.4:  14.98 +/- 0.13  detection
Forced photometry on wcs_Tau-07-Q2b1x1_2026-01-17_22-38-32_20.00sec_-14.90C_LIGHT_0164.fits at 03:38:26.47 +04:36:55.2:  14.47 +/- 0.09  detection
Forced photometry reference-image weighted average:  14.01 +/- 0.04
Forced photometry reference-image weighted average:  13.95 +/- 0.04
Forced photometry reference-image weighted average:  14.16 +/- 0.04
Forced photometry reference-image weighted average:  15.45 +/- 0.15
Forced photometry filter REJECTED candidate at 03:13:22.42 +03:13:10.3: ref_mag=14.01 +/- 0.04 new_mean_mag=14.3440 delta=-0.34 (need > 0.90)
Forced photometry filter REJECTED candidate at 03:32:36.83 +03:56:38.3: ref_mag=13.95 +/- 0.04 new_mean_mag=14.0934 delta=-0.14 (need > 0.90)
Forced photometry reference-image weighted average:  15.59 +/- 0.16
Forced photometry filter REJECTED candidate at 03:09:21.11 +03:50:01.9: ref_mag=15.45 +/- 0.15 new_mean_mag=14.8886 delta=0.56 (need > 0.90)
Forced photometry reference-image weighted average:  15.06 +/- 0.09
Forced photometry filter REJECTED candidate at 03:17:44.10 +05:42:56.0: ref_mag=14.16 +/- 0.04 new_mean_mag=14.3258 delta=-0.16 (need > 0.90)
Forced photometry reference-image weighted average:  14.40 +/- 0.06
Forced photometry filter REJECTED candidate at 03:29:37.26 +08:30:20.6: ref_mag=15.59 +/- 0.16 new_mean_mag=14.9683 delta=0.63 (need > 0.90)
Forced photometry filter REJECTED candidate at 03:22:24.86 +03:32:48.4: ref_mag=15.06 +/- 0.09 new_mean_mag=14.8368 delta=0.22 (need > 0.90)
Forced photometry filter REJECTED candidate at 03:38:26.47 +04:36:55.2: ref_mag=14.40 +/- 0.06 new_mean_mag=14.3658 delta=0.03 (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 51185_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 51185_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.77    03:22:24.89 +03:32:48.3   4326 1709   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.94    03:22:24.82 +03:32:48.5   4319 1714   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 51190_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 51190_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.51    03:13:22.43 +03:13:09.5   2956 1527   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.27    03:13:22.41 +03:13:11.0   2950 1532   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 51193_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 51193_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.29    03:17:44.01 +05:42:56.1   3638 3030   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.37    03:17:44.20 +05:42:55.9   3632 3034   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 55234_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 55234_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.00    03:32:36.80 +03:56:38.0   5867 1935   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.28    03:32:36.86 +03:56:38.7   5860 1939   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 56450_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 56450_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.40    03:38:26.51 +04:36:55.4   6750 2335   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.34    03:38:26.42 +04:36:55.0   6743 2340   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 57247_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 57247_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.88    03:09:21.14 +03:50:02.4   2353 1908   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.90    03:09:21.07 +03:50:01.5   2346 1912   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 57374_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 57374_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 1     2026 08 18.38135    2461270.88135    14.96    03:29:37.23 +08:30:20.6   5439 4696   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-08-58_20.00sec_0.00C_LIGHT_0430.fits
Discovery image 2     2026 08 18.38209    2461270.88209    14.98    03:29:37.28 +08:30:20.6   5433 4701   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

  
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Considering the candidate 39630_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 39630_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 3     2026 08 18.38209    2461270.88209    12.32    03:20:23.32 +04:21:03.6   4020 2204   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

Rejecting candidate due to large distance (46.0") between the two second-epoch detections
  
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Considering the candidate 10885_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431
The candidate 10885_fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431 did not pass the final checks
Discovery image 3     2026 08 18.38209    2461270.88209    13.78    03:38:20.36 +08:16:26.7   6738 4555   /data_ssd/NMW-TexasTech/workdir//img_2026-08-18_CI_Tau-07-Q2b1x1_042648_TTUQ2b1x1_696637_wX3A3oBw/fd_Tau-07-Q2b1x1_2026-08-18_04-10-02_20.00sec_-0.00C_LIGHT_0431.fits

Rejecting candidate due to large distance (47.0") 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-07-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Tau-07-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461270.88135165 -observatory V36
09:13:18.97 +17:33:04.3 Mercury (-1.5mag)
12:37:23.27 -05:55:47.2 Venus (-4.5mag)
06:18:34.47 +23:42:03.8 Mars (1.3mag)
08:52:00.61 +18:06:47.4 Jupiter (-1.8mag)
00:55:23.27 +03:06:07.2 Saturn (0.5mag)
04:12:44.27 +20:59:33.1 Uranus (5.7mag)
00:15:26.06 +00:08:23.0 Neptune (7.7mag)
20:27:11.69 -23:33:53.0 Pluto (14.5mag)
14:04:33.55 -18:11:10.2 Moon (-9.9mag)
-rw-r--r-- 1 apache apache 362 Aug 18 04:30 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461270.88135165:
08:52:07.81 +18:06:15.8 Io (6.1mag)
08:52:01.29 +18:06:45.4 Europa (6.3mag)
08:51:49.72 +18:07:36.5 Ganymede (5.6mag)
08:51:42.25 +18:08:08.7 Callisto (6.8mag)
08:49:28.48 +18:12:23.7 Himalia (15.7mag)
08:51:58.67 +18:06:56.8 Thebe (16.6mag)
08:49:06.26 +18:08:58.1 Elara (17.7mag)
08:56:09.21 +17:41:41.8 Pasiphae (17.9mag)
08:54:30.27 +18:19:23.9 Carme (19.0mag)
00:55:34.98 +03:06:01.9 Titan (8.4mag)
00:55:25.94 +03:06:08.3 Rhea (9.7mag)
00:55:55.10 +03:07:02.3 Iapetus (11.1mag)
00:55:39.02 +03:05:47.5 Hyperion (14.4mag)
00:54:32.88 +02:58:01.0 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 18 04:30 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461270.88135165:
19:49:17.07 -16:59:30.5 JWST
11:30:34.00 +45:50:07.7 Chandra
11:14:51.86 -60:05:27.3 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 18 04:30 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461270.88135165 -observatory V36
03:24:28.70 +18:10:04.5 17.6mag P/1996 R2 (Lagerkvist)
17:59:59.77 -34:31:47.7 14.1mag P/2010 H2 (Vales)
07:03:01.77 -69:18:40.0 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:12:18.13 +33:12:57.2 17.7mag C/2017 K2 (PANSTARRS)
04:11:32.67 +41:20:10.0 17.3mag P/2021 N1 (ZTF)
22:30:06.63 +30:43:27.3 17.3mag C/2022 E2 (ATLAS)
06:53:16.91 +26:21:30.5 16.8mag C/2022 N2 (PANSTARRS)
10:31:00.35 +28:01:16.4 17.0mag C/2022 QE78 (ATLAS)
09:35:39.73 +05:18:26.4 18.0mag C/2022 R6 (PANSTARRS)
15:14:35.48 -12:42:11.0 17.9mag P/2023 B1 (PANSTARRS)
20:57:56.68 +64:41:39.6 17.9mag C/2023 H5 (Lemmon)
15:39:07.22 -13:52:23.3 14.5mag C/2023 R1 (PANSTARRS)
08:19:09.17 +31:49:03.4 15.5mag C/2024 E1 (Wierzchos)
15:05:50.87 +15:32:34.4 17.8mag C/2024 G6 (ATLAS)
18:51:03.84 +43:27:15.4 13.7mag C/2024 J3 (ATLAS)
20:55:26.73 +49:38:04.4 17.5mag C/2024 R4 (PANSTARRS)
05:22:56.18 -12:53:56.9 15.3mag C/2024 T5 (ATLAS)
07:02:26.44 +22:20:18.1 17.9mag C/2025 J1 (Borisov)
10:47:23.38 +20:14:09.0 17.1mag C/2025 V2 (Rankin)
13:04:37.69 +01:38:45.2 16.9mag C/2025 Y1 (ATLAS)
16:06:21.00 +76:45:51.8 16.6mag C/2026 A2 (Bok)
03:09:49.14 +46:19:54.3 17.2mag C/2026 B2 (Sun-Gao)
11:55:22.76 +09:33:48.7 17.4mag A/2026 E1
22:08:43.70 -31:06:44.7 7.0mag 10P/Tempel
11:35:11.89 -04:03:03.8 16.3mag 29P/Schwassmann-Wachmann
11:28:21.43 +01:19:07.1 17.4mag 63P/Wild
00:52:43.27 -05:53:35.4 15.4mag 65P/Gunn
05:58:11.83 +20:24:54.5 13.7mag 78P/Gehrels
20:29:00.55 -24:37:27.6 17.5mag 84P/Giclas
03:09:25.20 +14:20:31.6 16.9mag 88P/Howell
08:21:06.35 +26:12:02.2 16.3mag 93P/Lovas
04:35:37.82 +20:50:48.0 17.3mag 112P/Urata-Niijima
06:29:46.89 +28:58:20.5 16.1mag 114P/Wiseman-Skiff
09:42:24.99 +24:50:45.5 14.9mag 123P/West-Hartley
12:04:17.51 -14:07:31.7 17.2mag 124P/Mrkos
05:51:13.82 +21:05:31.8 16.0mag 128P/Shoemaker-Holt
06:45:32.19 +18:20:58.5 17.9mag 131P/Mueller
00:00:58.95 +03:13:22.3 17.5mag 139P/Vaisala-Oterma
03:14:01.66 -18:46:44.9 13.1mag 161P/Hartley-IRAS
07:50:36.53 +38:07:00.9 16.0mag 162P/Siding Spring
11:56:13.65 +35:32:27.9 12.0mag 169P/NEAT
03:00:16.11 +09:29:51.8 17.6mag 220P/McNaught
16:47:48.27 -10:50:35.6 17.9mag 235P/LINEAR
20:17:15.43 -52:15:29.5 17.9mag 259P/Garradd
03:51:45.07 +29:18:30.8 15.3mag 260P/McNaught
07:35:42.00 +37:19:43.6 17.3mag 295P/LINEAR
15:14:20.65 +02:00:16.9 17.8mag 391P/Kowalski
09:10:07.82 +17:52:11.8 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 18 04:30 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
14:20:14.30 -30:20:51.90  AT2026ktm  2026-05-12.06 17.21
14:41:39.01 -37:13:46.40  AT2026lkm  2026-05-11.18 16.89
12:59:50.45 -10:58:38.80  SN2026kep  2026-05-9.06 17.5
13:37:29.61 -29:50:30.90  AT2026lkd  2026-05-9.09 17.23
09:46:42.01 -14:52:03.60  SN2026kmo  2026-05-8.99 17.51
15:03:05.28 +22:02:03.40  AT2026lxf  2026-05-8.07 13.88
10:23:49.41 -20:57:25.30  ASASSN-26df  2026-05-8.21 16.52
22:14:40.56 +05:04:51.60  2026lda  2026-05-7.56 16.2
21:35:33.81 -14:05:16.30  ASASSN-26de  2026-05-6.29 14.51
16:21:49.13 -61:36:14.60  ASASSN-26dd  2026-05-5.15 15.93
-rw-r--r-- 1 apache apache 5.7K Aug 18 04:30 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
09:55:21.28 +69:02:52.6  PNV J09552128+6902526  2026-06-13.933  18.9mag
19:51:21.42 +37:06:40.0  TCP J19512142+3706400  2026-06-17.2942  16.8mag
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
-rw-r--r-- 1 apache apache 190K Aug 18 04:30 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
20:42:19.872 +11:23:33.24  AT 2026wyg  2026-07-27.36 20.362
22:23:18.161 -03:42:46.81  AT 2026wyf  2026-08-02.43 19.8981
23:01:54.687 -22:43:32.99  SN 2026wye  2026-08-02.38 19.1478
21:53:38.707 -07:26:43.02  AT 2026wyd  2026-08-02.36 19.6168
22:49:50.870 -46:36:08.90  AT 2026wyc  2026-08-03.35 17.2
21:36:41.623 +15:19:50.35  AT 2026wyb  2026-07-18.75 20.3
21:50:57.870 +21:21:44.04  AT 2026wya  2026-07-18.75 20.78
14:05:12.660 -00:47:11.60  AT 2026wxz  2026-08-01.61 20.44
04:58:05.316 +09:12:46.13  AT 2026wxy  2026-07-29.49 17.3027
19:55:18.916 +04:09:22.19  AT 2026wxx  2026-07-23.35 20.806
16:04:20.254 -02:01:58.81  AT 2026wxw  2026-07-05.20 20.2659
18:46:54.548 +16:48:18.74  AT 2026wxv  2026-06-24.31 19.7189
23:46:24.941 +43:49:43.79  AT 2026wxu  2026-07-03.43 19.6427
18:51:17.703 +37:10:07.59  AT 2026wxt  2026-07-04.30 20.0164
01:01:55.949 +41:41:30.57  AT 2026wxs  2026-07-01.41 19.2645
14:20:50.231 +61:16:12.38  AT 2026wxr  2026-07-12.22 19.9923
19:31:40.957 -26:44:38.76  AT 2026wxq  2026-07-24.28 19.6734
13:18:44.218 -20:30:38.57  AT 2026wxp  2026-04-17.43 20.98
12:55:43.929 +27:34:40.69  AT 2026wxo  2026-04-21.42 21.19
10:15:49.208 -16:52:33.53  AT 2026wxn  2026-04-22.26 20.69
-rw-r--r-- 1 apache apache 87K Aug 18 04:30 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Tue Aug 18 04:30:08 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 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: 7s (0.12 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: 7 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 12s (0.20 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 11s (0.18 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: 26s (0.43 min)
FIELD_Tau-07-Q2b1x1: 72s (1.20 min)
=======================================
TOTAL_RUNTIME: 74s (1.23 min)
Finished: Tue Aug 18 04:31:22 CDT 2026