######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-1 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst
CAMERA_SETTINGS= TTUQ1b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ1.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ1b1x1/flats
FRAME_EDGE_OFFSET_PIX= 100
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=esa_tap (lib/gaia_dr2_cone_search.sh -> ESA Gaia Archive TAP service)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
UMa-11-Q1b1x1
#######################################
########### Starting UMa-11-Q1b1x1 ###########
Processing UMa-11-Q1b1x1
server tau has sufficient free disk space available: 747918 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 747918 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.png' -> 'transient_report/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits_preview.png'

UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits


renamed 'UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.png' -> 'transient_report/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits_preview.png'

UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.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= 446.7819
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 471.5037
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 2353.1057
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 451.6523
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 2352.1856
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 455.3644
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 5.26679
INFO:                  SECOND_EPOCH__SD_ratio= 0.008
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ1b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.2999992370605 / [degC] Focuser temperature
AMBTEMP =                 27.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.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= '2026-08-19T22:45:32.6249624' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-20T03:45:32.6249624' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61272.1566275926 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-20T03:45:42.5296675' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61272.1567422338 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     179.998269786002 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9999801540432 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.7563888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     315.086666666667 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.63689573482124 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-11'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29545 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29545 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2999992370605 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2999992370605 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.8 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 34.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.51 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 31.0 / [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 =               2.5002 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/d_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits :)

Spent 0.695846 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/d_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.2999992370605 / [degC] Focuser temperature
AMBTEMP =                 27.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.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= '2026-08-19T22:46:27.1332368' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-20T03:46:27.1332368' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61272.1572584836 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-20T03:46:37.0350452' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61272.1573730903 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-33d3d743814b8b447' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU1'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     179.998269806849 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9999801928171 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.6238888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     315.174722222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.66613245750522 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1015.0 / [m] Observation site elevation" status=0
Record 38: "SITELAT =     33.7480555555556 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=    -101.958333333333 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'UMa-11'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '12 00 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                29545 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                29545 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.2999992370605 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.2999992370605 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.8 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 34.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.51 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 31.0 / [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 =               2.5002 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/d_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits :)

Spent 0.633825 seconds 
renamed 'mdark_TTUQ1b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ1b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/d_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 36313.440328
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits :)


No overscan detected - all values seem high! (left_median=23343.0, right_median=27331.5)
renamed 'mff_TTUQ1b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Previews of the CALIBRATED second-epoch images:


fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits



fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
  
SExtractor catalog cache: saved UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.cat to cache
SExtractor catalog cache: saved UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.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/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.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: 2461272.65674333
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_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits exists and is non-empty
wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits exists and is non-empty
wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits exists and is non-empty
wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits (1st reference image)
verification OK: wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Image size: 941.8'x627.2'  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: 11:59:59.840 +46:00:34.73 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_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits (1st new image)
verification OK: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
Image size: 942.7'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.91"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 11:59:47.896 +46:01:50.41 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 11:59:59.840 +46:00:34.73
Second-epoch image center 11:59:47.896 +46:01:50.41
Angular distance between the image centers 0.0404 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits (2nd new image)
verification OK: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Image size: 942.7'x627.1'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.91"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 11:59:48.982 +46:01:09.38 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 11:59:59.840 +46:00:34.73
Second-epoch image center 11:59:48.982 +46:01:09.38
Angular distance between the image centers 0.0329 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  11:59:47.896 +46:01:50.41
Second-epoch second image center 11:59:48.982 +46:01:09.38
Angular distance between the image centers 0.01182 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/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits &> /tmp/tmp.veQ8hFvSB0
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits &> /tmp/tmp.PmxvnaaAfF
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits &> /tmp/tmp.tED2AIEojL
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits &> /tmp/tmp.PAVSRZudbQ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Calibrating the magnitude scale
Found non-empty wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.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_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits and wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.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_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits and wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat 
Found non-empty wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits and wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat
The reference image (wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits) and catalog (wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat) found
'wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat' -> 'wcsmag.cat'
Read 6312 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 167.3583 to 191.9198 deg, Dec +39.8316 to +51.3978 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 167.3583 to 191.9198 deg, Dec 39.8316 to 51.3978 deg
Loaded 3936 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): 2810 out of 2955 total matches.
Matched with Tycho-2 2955 out of 6312 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.929550
a=0.000000 b=1.000000 c=22.929550
From vast_summary.log: estimated ref. image limiting mag.:  -7.48
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.45

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.45

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 6312 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 167.3583 to 191.9198 deg, Dec +39.8316 to +51.3978 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 167.3583 to 191.9198 deg, Dec 39.8316 to 51.3978 deg
Loaded 3936 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): 2810 out of 2955 total matches.
Matched with Tycho-2 2955 out of 6312 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Forced-photometry filter: calibrated wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits -> calib.txt_param_ref_wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits (aperture=6.5)
Read 6666 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 167.9142 to 192.3677 deg, Dec +40.1383 to +51.2474 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 167.9142 to 192.3677 deg, Dec 40.1383 to 51.2474 deg
Loaded 3769 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): 2802 out of 2907 total matches.
Matched with Tycho-2 2907 out of 6666 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
Forced-photometry filter: calibrated wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits -> calib.txt_param_ref_wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits (aperture=6.6)
____ 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:
 2.2 pix  UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
 2.4 pix  UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
 2.1 pix  fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
 2.1 pix  fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Limiting magnitude estimates:
 15.4 mag.  UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
 15.5 mag.  UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
 11.7 mag.  fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
 12.2 mag.  fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
All-image limiting magnitude estimate:  11.7 (SNR )   9.7 (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.veQ8hFvSB0 (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits' -> 'wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.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/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
WCS_IMAGE_NAME=wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
WCS-calibrated image found: wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Checking if the catalog wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat corresponding to the image wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits alredy exist and is non-empty...
Catalog wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat corresponding to the image wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
WCS catalog name: wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=397, bad_region=0, passed=6312
Got 6312 stars (including 5911 good ones) from the SExtractor catalog wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat 
util/solve_plate_with_UCAC5 got 6312 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 649 to 708 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4846 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4837 matched stars entering correct_measured_positions(), 4837 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4837 matched stars entering correct_measured_positions(), 6312 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 649 to 708 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4846 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4837 matched stars entering correct_measured_positions(), 6312 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4837 matched stars entering correct_measured_positions(), 6312 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4837 stars left (next iteration limit 5320)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits N_match=4837 sigma_overall_arcsec=0.389 sigma_q1_arcsec=0.493 sigma_q2_arcsec=0.378 sigma_q3_arcsec=0.363 sigma_q4_arcsec=0.336 n_q1=1202 n_q2=1130 n_q3=1249 n_q4=1256 worst_quadrant_to_overall_ratio=1.268
The image catalog is written to wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits -region wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.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.PmxvnaaAfF (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/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits' -> 'wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.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/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
WCS_IMAGE_NAME=wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
WCS-calibrated image found: wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
Checking if the catalog wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat corresponding to the image wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits alredy exist and is non-empty...
Catalog wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat corresponding to the image wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
WCS catalog name: wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=353, bad_region=0, passed=6666
Got 6666 stars (including 6308 good ones) from the SExtractor catalog wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat 
util/solve_plate_with_UCAC5 got 6666 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 650 to 708 (Dec 40.1 to 51.2)
Done reading UCAC5 zone files...
Matched 4840 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4832 matched stars entering correct_measured_positions(), 4832 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4832 matched stars entering correct_measured_positions(), 6666 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 650 to 708 (Dec 40.1 to 51.2)
Done reading UCAC5 zone files...
Matched 4839 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4831 matched stars entering correct_measured_positions(), 6666 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4831 matched stars entering correct_measured_positions(), 6666 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4831 stars left (next iteration limit 5315)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits N_match=4831 sigma_overall_arcsec=0.321 sigma_q1_arcsec=0.277 sigma_q2_arcsec=0.362 sigma_q3_arcsec=0.335 sigma_q4_arcsec=0.313 n_q1=1233 n_q2=1155 n_q3=1237 n_q4=1206 worst_quadrant_to_overall_ratio=1.128
The image catalog is written to wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits -region wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.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.tED2AIEojL (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
WCS_IMAGE_NAME=wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
WCS-calibrated image found: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
Checking if the catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat corresponding to the image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat corresponding to the image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
WCS catalog name: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=20, bad_region=0, passed=332
Got 332 stars (including 311 good ones) from the SExtractor catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat 
util/solve_plate_with_UCAC5 got 332 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 942.7'
Seting catalog search parameters based on the expected field of view 942.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013093 (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 0.010474 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 40.0 to 51.2)
Done reading UCAC5 zone files...
Matched 292 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 292 matched stars entering correct_measured_positions(), 228 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 292 matched stars entering correct_measured_positions(), 253 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 40.0 to 51.2)
Done reading UCAC5 zone files...
Matched 291 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 291 matched stars entering correct_measured_positions(), 251 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 291 matched stars entering correct_measured_positions(), 251 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 291 stars left (next iteration limit 321)
Stop iterations.


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

SIP_REFIT: the 291 catalog matches do not cover the frame (152/48/86/5 per quadrant, need 18 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits N_match=291 sigma_overall_arcsec=0.434 sigma_q1_arcsec=0.365 sigma_q2_arcsec=0.553 sigma_q3_arcsec=0.440 sigma_q4_arcsec=0.173 n_q1=152 n_q2=48 n_q3=86 n_q4=5 worst_quadrant_to_overall_ratio=1.275
The image catalog is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits -region wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.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.PAVSRZudbQ (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
WCS_IMAGE_NAME=wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
WCS-calibrated image found: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Checking if the catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat corresponding to the image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits alredy exist and is non-empty...
Catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat corresponding to the image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
WCS catalog name: wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat 
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=17, bad_region=0, passed=321
Got 321 stars (including 303 good ones) from the SExtractor catalog wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat 
util/solve_plate_with_UCAC5 got 321 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 942.7'
Seting catalog search parameters based on the expected field of view 942.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013093 (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 0.010474 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 40.0 to 51.2)
Done reading UCAC5 zone files...
Matched 285 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 285 matched stars entering correct_measured_positions(), 216 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 285 matched stars entering correct_measured_positions(), 237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 708 (Dec 40.0 to 51.2)
Done reading UCAC5 zone files...
Matched 284 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 284 matched stars entering correct_measured_positions(), 236 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 284 matched stars entering correct_measured_positions(), 236 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 284 stars left (next iteration limit 313)
Stop iterations.


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

SIP_REFIT: the 284 catalog matches do not cover the frame (164/39/76/5 per quadrant, need 17 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits N_match=284 sigma_overall_arcsec=0.442 sigma_q1_arcsec=0.362 sigma_q2_arcsec=0.660 sigma_q3_arcsec=0.488 sigma_q4_arcsec=0.615 n_q1=164 n_q2=39 n_q3=76 n_q4=5 worst_quadrant_to_overall_ratio=1.495
The image catalog is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits -region wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.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_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits to local_wcs_cache/
'wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits' -> 'local_wcs_cache/wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits'
Saving the final (post-refit) wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits to local_wcs_cache/
'wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits' -> 'local_wcs_cache/wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits'
Saving the final (post-refit) wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits to local_wcs_cache/
'wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits' -> 'local_wcs_cache/wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits'
Saving the final (post-refit) wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits to local_wcs_cache/
'wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits' -> 'local_wcs_cache/wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits sigma_overall=0.389 worst_q_ratio=1.268
ref2=UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits sigma_overall=0.321 worst_q_ratio=1.128
new1=fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits sigma_overall=0.434 worst_q_ratio=1.275
new2=fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits sigma_overall=0.442 worst_q_ratio=1.495
reference average sigma_overall=0.355 worst_q_ratio=1.198
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308_astrometric_residuals.png (4837 matched stars from wcs_UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256_astrometric_residuals.png (4831 matched stars from wcs_UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.28 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070_astrometric_residuals.png (291 matched stars from wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.42 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071_astrometric_residuals.png (284 matched stars from wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.43 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits'
Saving fully-calibrated image wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/wcs_fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits'
Preparing the HTML report for the field UMa-11-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field UMa-11-Q1b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
  
Last  image: 2461272.65674333 20.08.2026 03:45:32.624 UTC
WARNING: VaST exited with code 1 on the field UMa-11-Q1b1x1 AFTER completing the measurements. This is a memory-management crash during cleanup (a VaST bug to report), NOT a wrong field / clouds / bad focus. The lightcurves were written, so the transient search continues.
____ VaST output (crashed during memory cleanup; the measurements above are complete) ____

--==VaST 1.0rc90==--

Parsing command line arguments...
opt 'F': Will NOT create flag images for SExtractor
opt '5': 5.000000 pix is the new fixed star matching radius!
opt 'b': Using 500 reference stars for image matching!
opt '3': Will try to select best aperture for each source!
opt 'y': 0 SysRem iterations will be conducted!
opt 't 4': robust linear magnitude calibration (vary zero-point and slope)
opt 'x': 99 is the maximum acceptable SExtractor flag!
WARNING: disabling the mag-size filter in order not to reject blended stars.
opt 'u': Stick with UTC time system, no conversion to TT will be done!
opt 'f': Run ./find_candidates manually!
opt 'k': "JD" keyword in FITS image header will be ignored!
INFO from vast_remove_directory(): Could not open directory: symlinks_to_images
INFO from vast_remove_directory(): Could not open directory: converted_images
INFO from vast_remove_directory(): Could not open directory: unpacked_images

Checking the list of input images specified on the command line ...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits is already a symlink and we do not allow symlinks on symlinks

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN)...  OK
Found a system-wide installation of SExtractor
Cleaning old outNNNNN.dat files.
Done with cleaning!

 VaST was started with the following command line: 
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits 


Preparing to process 4 input FITS images...


######## Forcing special settings for the transient detection ########
transient search mode: disabling the mag-size filter as it should be switched off when running a transient search!
transient search mode: disabling the bad image filter as it will not help during the transient search!
transient search mode: will not try to gues image saturation limit
transient search mode: no UTC-to-TT time system conversion will be performed!!!
transient search mode: setting the maximum acceptable SExtractor flag to 3
transient search mode: disabling rejectin of images with elliptical stars
transient search mode: not discarding large sources
################
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
Setting the fixed star match radius of 5.00 pix
We have 4 images to process.
SExtractor catalog cache: restored UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits catalog from cache
SExtractor catalog cache: restored UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits catalog from cache
Running SExtractor in 3 parallel threads...
Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
The above guess is based on the non-default gain value specified in default.sex by user
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
The above guess is based on the non-default gain value specified in default.sex by user
Excluded a total of 50 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Excluding image region:   190.0  1039.0   192.0  1041.0  (defined in bad_region.lst)
Excluding image region:   226.0  1548.0   228.0  1550.0  (defined in bad_region.lst)
Excluding image region:   351.0  1875.0   353.0  1877.0  (defined in bad_region.lst)
Excluding image region:   501.0  5912.0   503.0  5914.0  (defined in bad_region.lst)
Excluding image region:   638.0  5545.0   640.0  5547.0  (defined in bad_region.lst)
Excluding image region:   724.0  2731.0   726.0  2733.0  (defined in bad_region.lst)
Excluding image region:   883.0  1376.0   885.0  1378.0  (defined in bad_region.lst)
Excluding image region:   901.0  3972.0   903.0  3974.0  (defined in bad_region.lst)
Excluding image region:  1151.0   918.0  1153.0   920.0  (defined in bad_region.lst)
Excluding image region:  1157.0   135.0  1159.0   137.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 50 image regions  (defined in bad_region.lst).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.4,4.4,4.0,4.8,5.3,5.7 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.4,4.4,4.0,4.9,5.3,5.7 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits


Done with SExtractor!

TIMING SExtractor: 5 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-02-22T07:00:38.4656810
Setting observation time using DATE-OBS keyword: 2026-02-22T07:00:38.4656810

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-02-22T07:00:38.465
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
Exposure 20 sec, 22.02.2026 07:00:38.465 UTC = JD(UTC) 2461093.79222760 mid. exp.
The reference image star  1327.034   613.350 is rejected, see bad_region.lst
The reference image star  8497.993   871.976 is rejected, see bad_region.lst
The reference image star  4001.019  1321.991 is rejected, see bad_region.lst
The reference image star  3619.365  1436.993 is rejected, see bad_region.lst
The reference image star   351.985  1875.986 is rejected, see bad_region.lst
The reference image star  2635.969  2108.003 is rejected, see bad_region.lst
The reference image star  3307.135  3306.969 is rejected, see bad_region.lst
The reference image star  7039.001  5906.010 is rejected, see bad_region.lst
The reference image star  5376.997  4998.147 is rejected, see bad_region.lst
The reference image star   903.125  3971.065 is rejected, see bad_region.lst
Excluding more reference image stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 30311, (30310 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 23
 * rejected inside rectangles defined in bad_region.lst: 14
 * rejected close to frame edge: 173
 * rejected as being too small (<1.3 pix): 0
 * rejected as being too large (>5.1 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 55
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.23
Detection limit from the magnitude-SNR relation= -7.2  (5.0 sigma detection)
The simple faintest star detection limit= -6.5
80 percent brightest stars detection limit= -7.7
Selected detection limit= -7.7
Final detection limit= -7.7 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.05.3 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 96
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    29683 * detected, using  489/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.013197, number_of_ambiguous_matches=400 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=26525 inliers=26525 rms 1.05 -> 0.39 pix, max corner correction 3.3 pix] fraction_of_ambiguous_matches= 0.010227, number_of_ambiguous_matches=310 
26523 * matched, [CVPOLY iter 2: order=1 pairs=26523 inliers=26523 rms 0.34 -> 0.34 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.005378, number_of_ambiguous_matches=163 
26518 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=26518 inliers=26518 rms 0.26 -> 0.26 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.002243, number_of_ambiguous_matches=68 
26516 * matched (3rd iteration). Success!
  rotation [degrees] =  -5.478
    29683 stars detected, 26516 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 25389, N_manually_selected_comparison_stars = 0
Using 25389 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 25387 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = -0.00000*X_pix +0.00003*Y_pix -0.07342
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 23984 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.24
    33478 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  213048 kB used, 252284 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-08-20T03:45:32.6249624
Setting observation time using DATE-OBS keyword: 2026-08-20T03:45:32.6249624

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-20T03:45:32.624
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
The star   352.057  1876.016 is rejected, see bad_region.lst
The star  1455.093  3133.084 is rejected, see bad_region.lst
The star  9336.995  3590.996 is rejected, see bad_region.lst
SExtractor output filtering results:
 * passed selection: 3078
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 0
 * rejected inside rectangles defined in bad_region.lst: 3
 * rejected close to frame edge: 17
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.4 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 8
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
     3078 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=3013 inliers=3013 rms 1.08 -> 0.44 pix, max corner correction 11.6 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
3012 * matched, [CVPOLY iter 2: order=1 pairs=3012 inliers=3012 rms 0.40 -> 0.40 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
3010 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=3010 inliers=3010 rms 0.32 -> 0.32 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
3007 * matched (3rd iteration). Success!
  rotation [degrees] = 172.379
     3078 stars detected,  3007 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 2571, N_manually_selected_comparison_stars = 0
Using 2571 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 2252 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00012*X_pix +0.00022*Y_pix -0.81069
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 2252 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.81
[01;31m ERROR!!! Magnitude calibration failure. Dropping image. [33;00m
    33478 objects stored in memory (1000000 max.)
memory:  213100 kB used, 252284 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-08-20T03:46:27.1332368
Setting observation time using DATE-OBS keyword: 2026-08-20T03:46:27.1332368

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-08-20T03:46:27.133
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
The star   352.025  1876.030 is rejected, see bad_region.lst
The star  1454.872  3133.017 is rejected, see bad_region.lst
The star  9337.004  3591.001 is rejected, see bad_region.lst
SExtractor output filtering results:
 * passed selection: 3072
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 1
 * rejected inside rectangles defined in bad_region.lst: 3
 * rejected close to frame edge: 14
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.4 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 6
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
     3072 * detected, using  100/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
refining the coordinate transformation... [CVPOLY iter 1: order=3 pairs=2999 inliers=2999 rms 1.24 -> 0.40 pix, max corner correction 14.8 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
2998 * matched, [CVPOLY iter 2: order=1 pairs=2998 inliers=2998 rms 0.36 -> 0.36 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
2995 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=2995 inliers=2995 rms 0.22 -> 0.22 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000000, number_of_ambiguous_matches=0 
2995 * matched (3rd iteration). Success!
  rotation [degrees] = 172.406
     3072 stars detected,  2995 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 2570, N_manually_selected_comparison_stars = 0
Using 2570 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 2211 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00013*X_pix +0.00022*Y_pix -0.80934
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_B * Y_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 2211 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.81
[01;31m ERROR!!! Magnitude calibration failure. Dropping image. [33;00m
    33478 objects stored in memory (1000000 max.)
memory:  213096 kB used, 252284 kB peak, 65263848 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 1 seconds
Done with measurements! =)

Total number of measurements 59994 (59994 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 1 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  4127 stars
Aperture with index 1 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for     0 stars
Aperture with index 2 (REFERENCE_APERTURE_DIAMETER -0.10*REFERENCE_APERTURE_DIAMETER) seems best for 10883 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  3819 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  2593 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  5094 stars

done!  =)
TIMING select_aperture: 2 seconds
Computing lightcurve statistics...  Will not compute variability indexes for objects having <1 points in lightcurve
You may disable this by commenting out the line '#define DROP_LIGHTCURVES_WITH_SMALL_NUMBER_OF_POINTS_FROM_ALL_PLOTS' in src/vast_limits.h an re-compiling VaST with 'make'

Computing, please wait a bit
........................................................................................................................................................................................................................................................................
vast_lightcurve_statistics.log: 26438 objects, the longest string is 385 bytes.
Allocating memory for resorting the file.



----***** VaST processing WARNING *****----
You asked VaST to process 4 images, but only 1 were actually matched to the reference one.
Please investigate this!



**************************************************************
This error might be a bug, but it is far more likely that it is caused by 
inappropriate input data. A few simple things to check in the diagnostic
messages printed above (or the vast*.log files):
 * How many of the input images are matched?
 * Does the number of detected stars on each image look reasonable?
 * Do images have a sufficient overlap of at least about 20 percent?

You may run
 ./sextract_single_image /path/to/my/image/file.fit
to see how well VaST detects stars with the current SExtractor settings
(star detection settings can be changed in the default.sex configuration
file, see various examples in the VaST directory).

If you cannot identify the problem, please e-mail Kirill Sokolovsky 
Please try to describe the problem in details and, if possible, attach vast_summary.log
file and a few example images. If the images are too big to be sent by e-mail, please 
upload them through a web-form http://scan.sai.msu.ru/upload/
**************************************************************

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
SExtractor catalog cache: saved UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits.cat to cache
SExtractor catalog cache: saved UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
Last  image: 2461272.65674333 20.08.2026 03:45:32.624 UTC
ERROR running VaST on the field UMa-11-Q1b1x1 (less than 4 images processed)
exp_start= 22.02.2026 07:00:38.465  exp=   20.000  JD= 2461093.79222760  ap=  5.1  rotation=   0.000  *detected= 30311  *matched= 30311  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-02-22_01-00-38_20.00sec_-15.00C_LIGHT_0308.fits
exp_start= 20.03.2026 06:06:07.985  exp=   20.000  JD= 2461119.75437483  ap=  5.3  rotation=  -5.478  *detected= 29683  *matched= 26516  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/UMa-11-Q1b1x1_2026-03-20_01-06-07_20.00sec_-14.90C_LIGHT_0256.fits
exp_start= 20.08.2026 03:45:32.624  exp=   20.000  JD= 2461272.65674333  ap=  4.4  rotation= 172.379  *detected=  3078  *matched=  3007  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-45-32_20.00sec_-0.00C_LIGHTs_0070.fits
exp_start= 20.08.2026 03:46:27.133  exp=   20.000  JD= 2461272.65737422  ap=  4.4  rotation= 172.406  *detected=  3072  *matched=  2995  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-08-19_CI_UMa-11-Q1b1x1_224824_TTUQ1b1x1_3667207_cdZjVStN/fd_UMa-11-Q1b1x1_2026-08-19_22-46-27_20.00sec_-0.00C_LIGHTs_0071.fits
########### Completed UMa-11-Q1b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ1.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461272.65674333 -observatory V36
09:27:36.97 +16:37:05.5 Mercury (-1.6mag)
12:43:09.58 -06:45:40.0 Venus (-4.5mag)
06:23:37.67 +23:41:01.8 Mars (1.3mag)
08:53:34.31 +18:00:40.4 Jupiter (-1.8mag)
00:55:08.75 +03:04:08.1 Saturn (0.5mag)
04:12:52.67 +20:59:54.6 Uranus (5.7mag)
00:15:18.15 +00:07:27.4 Neptune (7.7mag)
20:27:02.21 -23:34:28.8 Pluto (14.5mag)
15:32:05.81 -25:20:27.5 Moon (-10.4mag)
-rw-r--r-- 1 apache apache 363 Aug 19 22:56 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461272.65674333:
08:53:41.53 +18:00:08.3 Io (6.1mag)
08:53:36.01 +18:00:33.2 Europa (6.3mag)
08:53:25.60 +18:01:23.4 Ganymede (5.6mag)
08:53:08.24 +18:02:38.7 Callisto (6.8mag)
08:51:02.15 +18:07:21.3 Himalia (15.7mag)
08:53:38.05 +18:00:24.6 Thebe (16.6mag)
08:50:40.65 +18:03:36.5 Elara (17.7mag)
08:57:42.58 +17:34:49.8 Pasiphae (17.9mag)
08:55:56.61 +18:13:42.7 Carme (19.0mag)
00:55:15.55 +03:04:22.2 Titan (8.4mag)
00:55:02.48 +03:04:03.9 Rhea (9.7mag)
00:55:42.65 +03:05:24.7 Iapetus (11.1mag)
00:55:23.27 +03:04:05.5 Hyperion (14.4mag)
00:54:16.20 +02:55:49.1 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 19 22:56 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461272.65674333:
20:00:08.61 -15:45:14.6 JWST
18:27:18.60 +24:47:55.0 Chandra
09:13:25.86 -51:55:43.2 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 19 22:56 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461272.65674333 -observatory V36
03:26:11.87 +18:17:31.5 17.5mag P/1996 R2 (Lagerkvist)
17:59:55.04 -34:30:25.9 14.1mag P/2010 H2 (Vales)
07:04:35.40 -69:23:23.3 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:12:41.20 +33:15:23.2 17.7mag C/2017 K2 (PANSTARRS)
04:15:54.15 +41:49:52.9 17.4mag P/2021 N1 (ZTF)
22:28:36.19 +30:34:25.3 17.4mag C/2022 E2 (ATLAS)
06:54:54.99 +26:19:30.0 16.8mag C/2022 N2 (PANSTARRS)
10:32:39.42 +27:56:42.6 17.0mag C/2022 QE78 (ATLAS)
09:36:50.53 +05:18:16.4 18.0mag C/2022 R6 (PANSTARRS)
15:15:03.26 -12:46:50.2 18.0mag P/2023 B1 (PANSTARRS)
20:55:53.73 +64:25:22.9 17.9mag C/2023 H5 (Lemmon)
15:37:53.56 -14:02:04.0 14.6mag C/2023 R1 (PANSTARRS)
08:21:00.00 +31:54:13.2 15.5mag C/2024 E1 (Wierzchos)
15:05:45.87 +15:31:35.1 17.8mag C/2024 G6 (ATLAS)
18:49:08.89 +43:28:37.9 13.7mag C/2024 J3 (ATLAS)
20:52:45.06 +49:39:59.4 17.5mag C/2024 R4 (PANSTARRS)
05:24:12.81 -12:53:50.4 15.3mag C/2024 T5 (ATLAS)
07:03:25.60 +22:00:47.8 17.9mag C/2025 J1 (Borisov)
10:49:59.90 +20:06:46.1 17.1mag C/2025 V2 (Rankin)
13:05:50.88 +01:31:00.0 16.9mag C/2025 Y1 (ATLAS)
16:08:00.90 +76:33:26.0 16.5mag C/2026 A2 (Bok)
03:09:55.35 +46:20:31.9 17.2mag C/2026 B2 (Sun-Gao)
11:56:55.31 +09:43:41.3 17.4mag A/2026 E1
22:10:25.15 -31:40:00.6 7.1mag 10P/Tempel
11:36:19.16 -04:10:14.0 16.3mag 29P/Schwassmann-Wachmann
11:31:57.17 +00:44:23.9 17.4mag 63P/Wild
00:52:16.12 -05:59:04.0 15.4mag 65P/Gunn
06:02:02.89 +20:20:31.2 13.7mag 78P/Gehrels
20:27:33.92 -24:47:47.3 17.5mag 84P/Giclas
03:10:37.75 +14:25:58.2 16.9mag 88P/Howell
08:25:19.84 +25:55:43.8 16.4mag 93P/Lovas
04:40:55.46 +21:32:42.5 17.3mag 112P/Urata-Niijima
06:35:30.29 +28:40:51.3 16.1mag 114P/Wiseman-Skiff
09:46:32.69 +24:30:47.9 14.9mag 123P/West-Hartley
12:07:56.97 -14:47:18.8 17.2mag 124P/Mrkos
05:53:42.59 +21:03:56.7 16.0mag 128P/Shoemaker-Holt
06:48:24.93 +18:14:25.8 17.9mag 131P/Mueller
00:00:24.37 +03:10:17.5 17.5mag 139P/Vaisala-Oterma
03:12:13.72 -18:42:40.0 13.0mag 161P/Hartley-IRAS
07:56:26.74 +38:07:34.5 16.1mag 162P/Siding Spring
11:30:41.99 +33:04:04.0 12.1mag 169P/NEAT
03:02:58.17 +09:27:28.1 17.6mag 220P/McNaught
16:49:05.33 -10:58:37.7 18.0mag 235P/LINEAR
20:16:46.95 -52:04:21.6 17.9mag 259P/Garradd
03:56:54.07 +29:59:36.6 15.3mag 260P/McNaught
07:40:53.81 +37:13:37.0 17.3mag 295P/LINEAR
15:15:08.71 +01:48:14.7 17.8mag 391P/Kowalski
09:11:43.91 +17:46:47.7 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 19 22:56 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
-rw-r--r-- 1 apache apache 5.7K Aug 19 22:56 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
-rw-r--r-- 1 apache apache 190K Aug 19 22:56 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
06:41:58.688 +53:42:20.54  AT 2026xcl  2026-08-02.50 18.8536
13:43:36.397 +09:46:51.05  AT 2026xck  2026-07-26.17 20.057
14:03:31.088 +15:02:47.16  AT 2026xcj  2026-07-29.17 19.6263
15:10:55.150 +13:20:25.04  AT 2026xci  2026-08-02.18 20.5198
14:45:25.001 +11:26:23.70  AT 2026xch  2026-08-02.19 20.638
18:13:57.520 +14:39:09.71  AT 2026xcg  2026-07-22.32 20.5953
17:23:04.950 +12:41:36.77  AT 2026xcf  2026-07-21.22 20.2814
20:05:21.367 +08:36:40.70  AT 2026xce  2026-07-23.39 21.153
22:04:50.533 -26:37:04.01  AT 2026xcd  2026-07-24.40 20.7419
04:54:42.835 +06:40:10.14  AT 2026xcc  2026-08-03.49 19.6775
23:55:54.936 -04:56:17.53  AT 2026xcb  2026-08-04.37 19.7264
23:17:00.231 +11:56:20.02  SN 2026xca  2026-08-04.35 19.0651
23:09:51.760 -03:47:29.74  AT 2026xbz  2026-08-04.35 19.5306
00:38:51.386 -16:06:32.27  SN 2026xby  2026-08-03.44 18.7751
16:27:51.335 +00:28:36.24  SN 2026xbx  2026-08-02.24 19.3891
21:27:46.487 -19:47:01.35  AT 2026xbw  2026-08-03.33 20.0026
21:31:59.900 -40:22:59.20  AT 2026xbv  2026-08-04.22 19.6
21:01:33.054 -18:40:40.95  AT 2026xbu  2026-08-03.29 19.075
20:13:06.476 -15:35:55.32  AT 2026xbt  2026-08-02.39 19.6899
23:34:43.130 +33:45:50.49  AT 2026xbs  2026-08-01.71 20.81
-rw-r--r-- 1 apache apache 87K Aug 19 22:56 tns_transients_list.txt
NMW transient search results

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