FITS images used in this processing run:

Field Scl-02-Q2b1x1 reference image: Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Field Scl-02-Q2b1x1 reference image: Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Field Scl-02-Q2b1x1 second-epoch image: Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Field Scl-02-Q2b1x1 second-epoch image: Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461242.95500144 21.07.2026 10:55:02.124   /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
First image: 2461242.95500144 21.07.2026 10:55:02.124   /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Last  image: 2461276.76972286 24.08.2026 06:28:14.055   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -8.81
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  1551
Objects passed selection criteria:  1547
Measurements per detected object (mean, median, min, max):    3.1    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.1    4.0    2    4
Average stars detected per image: 1226
Average stars matched: 1211.25 (98.7969 %)
Memory usage VmPeak:   228688 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Aug 20 15:05:04 CDT 2026
VaST build number  1.0rc89-192-g23359006
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-20)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 24 02:32:25 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461242.95500144 21.07.2026 10:55:02.124   /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
First image: 2461242.95500144 21.07.2026 10:55:02.124   /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Last  image: 2461276.76972286 24.08.2026 06:28:14.055   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 6
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -8.57
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  8626
Objects passed selection criteria:  8608
Measurements per detected object (mean, median, min, max):    3.3    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.3    4.0    2    4
Average stars detected per image: 7476.25
Average stars matched: 7319 (97.8967 %)
Memory usage VmPeak:   235512 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Thu Aug 20 15:05:04 CDT 2026
VaST build number  1.0rc89-192-g23359006
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-20)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Aug 24 02:33:13 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Scl-02-Q2b1x1
#######################################
########### Starting Scl-02-Q2b1x1 ###########
Processing Scl-02-Q2b1x1
server tau has sufficient free disk space available: 356921 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 356921 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.png' -> 'transient_report/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits_preview.png'

Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits


renamed 'Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.png' -> 'transient_report/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits_preview.png'

Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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= 4818.8888
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 559.5148
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 6164.0656
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1520.4313
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 6131.4220
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1510.2101
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 1.27915
INFO:                  SECOND_EPOCH__SD_ratio= 0.007
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.9099998474121 / [degC] Focuser temperature
AMBTEMP =                 29.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.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= '2026-08-24T01:27:32.4431360' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-24T06:27:32.4431360' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61276.2691254979 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-24T06:27:42.3457827' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61276.2692401041 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     14.4025642953812 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -25.9996662997442 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.4566666666667 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     136.788055555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.70372689965426 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Scl-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '00 57 36'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-26 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  =                20476 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20476 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.9099998474121 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.9099998474121 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 30.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.71 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 29.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 36.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            12.601008 / [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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/d_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits :)

Spent 0.559422 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/d_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =                 29.0 / [degC] Focuser temperature
AMBTEMP =                 29.0 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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= '2026-08-24T01:28:14.0558372' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-24T06:28:14.0558372' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61276.2696071179 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-24T06:28:23.9581183' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61276.2697217362 / Modified Julian Date of averaged midpoint" status=0
Record 16: "XBINNING=                    1 / X axis binning factor" status=0
Record 17: "YBINNING=                    1 / Y axis binning factor" status=0
Record 18: "GAIN    =                   30 / Sensor gain" status=0
Record 19: "OFFSET  =                   30 / Sensor gain offset" status=0
Record 20: "XPIXSZ  =                 3.76 / [um] Pixel X axis size" status=0
Record 21: "YPIXSZ  =                 3.76 / [um] Pixel Y axis size" status=0
Record 22: "INSTRUME= 'QHY600M'            / Imaging instrument name" status=0
Record 23: "CAMERAID= 'QHY600M-84137c4dbbbd119a9' / Imaging instrument identifier" status=0
Record 24: "SET-TEMP=                  0.0 / [degC] CCD temperature setpoint" status=0
Record 25: "CCD-TEMP=                 -0.0 / [degC] CCD temperature" status=0
Record 26: "READOUTM= '2CMS-0'             / Sensor readout mode" status=0
Record 27: "USBLIMIT=                   50 / Camera-specific USB setting" status=0
Record 28: "TELESCOP= 'QHY600M-TTU2'       / Name of telescope" status=0
Record 29: "FOCALLEN=                135.0 / [mm] Focal length" status=0
Record 30: "FOCRATIO=                  2.2 / Focal ratio" status=0
Record 31: "RA      =     14.4025642363486 / [deg] RA of telescope" status=0
Record 32: "DEC     =    -25.9996663043978 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.5563888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =              136.915 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.68121299546358 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'West'               / Telescope pointing state" status=0
Record 37: "SITEELEV=               1009.5 / [m] Observation site elevation" status=0
Record 38: "SITELAT =           33.7482925 / [deg] Observation site latitude" status=0
Record 39: "SITELONG=          -101.958319 / [deg] Observation site longitude" status=0
Record 40: "OBSERVER= 'Sokolovsky'         / Observer name" status=0
Record 41: "OBSERVAT= 'TTU Skyview'        / Observatory name" status=0
Record 42: "SITENAME= ''                   / Observatory site name" status=0
Record 43: "FWHEEL  = 'Simulator'          / Filter Wheel name" status=0
Record 44: "FILTER  = 'CV'                 / Active filter name" status=0
Record 45: "OBJECT  = 'Scl-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '00 57 36'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '-26 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  =                20476 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20476 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =                 29.0 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=                 29.0 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                  9.7 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 30.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.71 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 29.0 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 36.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            16.601328 / [kph] Wind gust" status=0
Record 61: "WINDSPD =            12.601008 / [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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/d_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits :)

Spent 0.589769 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/d_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Previews of the CALIBRATED second-epoch images:


fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits



fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits




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

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
  
SExtractor catalog cache: saved Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.cat to cache
SExtractor catalog cache: saved Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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: 2461276.76924124
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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits exists and is non-empty
wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits exists and is non-empty
wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits exists and is non-empty
wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (1st reference image)
verification OK: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Image size: 941.1'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 00:57:36.183 -25:59:52.14 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits (1st new image)
verification OK: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Image size: 939.3'x624.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:57:38.140 -26:00:10.87 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 00:57:36.183 -25:59:52.14
Second-epoch image center 00:57:38.140 -26:00:10.87
Angular distance between the image centers 0.0090 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits (2nd new image)
verification OK: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Image size: 939.2'x624.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:57:40.149 -25:59:54.99 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 00:57:36.183 -25:59:52.14
Second-epoch image center 00:57:40.149 -25:59:54.99
Angular distance between the image centers 0.0149 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  00:57:38.140 -26:00:10.87
Second-epoch second image center 00:57:40.149 -25:59:54.99
Angular distance between the image centers 0.00872 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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits &> /tmp/tmp.IpJFCIPLtv
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits &> /tmp/tmp.bX7r58Nay9
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits &> /tmp/tmp.86N5U437sh
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits &> /tmp/tmp.zY85h8oHGG
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Calibrating the magnitude scale
Found non-empty wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
Found non-empty wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat
The reference image (wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits) and catalog (wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat) found
'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat' -> 'wcsmag.cat'
Read 2112 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.1794 to 23.2015 deg, Dec -31.4222 to -20.2815 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 5.1794 to 23.2015 deg, Dec -31.4222 to -20.2815 deg
Loaded 4267 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): 1741 out of 1764 total matches.
Matched with Tycho-2 1764 out of 2112 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.650500
a=0.000000 b=1.000000 c=22.650500
From vast_summary.log: estimated ref. image limiting mag.:  -8.81
Updating vast_summary.log: Estimated ref. image limiting mag.:  13.84

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  13.84

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 2112 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.1794 to 23.2015 deg, Dec -31.4222 to -20.2815 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 5.1794 to 23.2015 deg, Dec -31.4222 to -20.2815 deg
Loaded 4267 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): 1741 out of 1764 total matches.
Matched with Tycho-2 1764 out of 2112 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Forced-photometry filter: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits -> calib.txt_param_ref_wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (aperture=6.7)
Read 2029 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.1794 to 23.2008 deg, Dec -31.4221 to -20.1425 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 5.1794 to 23.2008 deg, Dec -31.4221 to -20.1425 deg
Loaded 4315 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): 1681 out of 1701 total matches.
Matched with Tycho-2 1701 out of 2029 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Forced-photometry filter: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits -> calib.txt_param_ref_wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits (aperture=6.7)
____ 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:
 2.8 pix  Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
 2.8 pix  Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
 2.4 pix  fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
 2.4 pix  fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Limiting magnitude estimates:
 13.8 mag.  Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
 13.8 mag.  Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
 12.9 mag.  fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
 13.0 mag.  fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
All-image limiting magnitude estimate:  12.9 (SNR )  10.2 (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.IpJFCIPLtv (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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits' -> 'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS_IMAGE_NAME=wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS-calibrated image found: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Checking if the catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits alredy exist and is non-empty...
Catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS catalog name: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=176, bad_region=458, passed=2112
Got 2112 stars (including 1528 good ones) from the SExtractor catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
util/solve_plate_with_UCAC5 got 2112 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 292 to 350 (Dec -31.4 to -20.3)
Done reading UCAC5 zone files...
Matched 1498 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1497 matched stars entering correct_measured_positions(), 1497 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1497 matched stars entering correct_measured_positions(), 1705 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.25" 

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 292 to 350 (Dec -31.4 to -20.3)
Done reading UCAC5 zone files...
Matched 1499 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1498 matched stars entering correct_measured_positions(), 1705 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 
Accuracy estimation diagnostic: 1498 matched stars entering correct_measured_positions(), 1705 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Excluding outliers - 1498 stars left (next iteration limit 1646)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits N_match=1498 sigma_overall_arcsec=0.281 sigma_q1_arcsec=0.302 sigma_q2_arcsec=0.344 sigma_q3_arcsec=0.243 sigma_q4_arcsec=0.261 n_q1=478 n_q2=261 n_q3=499 n_q4=260 worst_quadrant_to_overall_ratio=1.222
The image catalog is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits -region wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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.bX7r58Nay9 (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/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits' -> 'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS_IMAGE_NAME=wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS-calibrated image found: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Checking if the catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits alredy exist and is non-empty...
Catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS catalog name: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=177, bad_region=448, passed=2029
Got 2029 stars (including 1454 good ones) from the SExtractor catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat 
util/solve_plate_with_UCAC5 got 2029 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 1429 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1428 matched stars entering correct_measured_positions(), 1428 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1428 matched stars entering correct_measured_positions(), 1627 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 1429 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1428 matched stars entering correct_measured_positions(), 1627 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Accuracy estimation diagnostic: 1428 matched stars entering correct_measured_positions(), 1627 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 1428 stars left (next iteration limit 1570)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits N_match=1428 sigma_overall_arcsec=0.287 sigma_q1_arcsec=0.318 sigma_q2_arcsec=0.316 sigma_q3_arcsec=0.252 sigma_q4_arcsec=0.275 n_q1=444 n_q2=244 n_q3=485 n_q4=255 worst_quadrant_to_overall_ratio=1.108
The image catalog is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits -region wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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.86N5U437sh (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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS_IMAGE_NAME=wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS-calibrated image found: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Checking if the catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS catalog name: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=105, bad_region=193, passed=1044
Got 1044 stars (including 766 good ones) from the SExtractor catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat 
util/solve_plate_with_UCAC5 got 1044 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.3'
Seting catalog search parameters based on the expected field of view 939.3 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013046 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010437 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 348 (Dec -31.3 to -20.7)
Done reading UCAC5 zone files...
Matched 756 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 755 matched stars entering correct_measured_positions(), 746 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 755 matched stars entering correct_measured_positions(), 849 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 293 to 348 (Dec -31.3 to -20.7)
Done reading UCAC5 zone files...
Matched 756 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 755 matched stars entering correct_measured_positions(), 849 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Accuracy estimation diagnostic: 755 matched stars entering correct_measured_positions(), 849 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Excluding outliers - 755 stars left (next iteration limit 830)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=755 robust_rms=5.080 arcsec worst_quadrant_rms=14.244 arcsec
SIP_REFIT: SIP order 3 trial: matched=755 robust_rms=0.699 arcsec worst_quadrant_rms=0.751 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=755 robust_rms_before=1.088 arcsec robust_rms_before_corrected=0.403 arcsec robust_rms_after=0.699 arcsec worst_quadrant_rms_before=0.513 worst_quadrant_rms_after=0.751
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.513 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits N_match=755 sigma_overall_arcsec=0.412 sigma_q1_arcsec=0.403 sigma_q2_arcsec=0.500 sigma_q3_arcsec=0.406 sigma_q4_arcsec=0.407 n_q1=233 n_q2=98 n_q3=296 n_q4=128 worst_quadrant_to_overall_ratio=1.213
The image catalog is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits -region wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.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.zY85h8oHGG (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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS_IMAGE_NAME=wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS-calibrated image found: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Checking if the catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS catalog name: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=99, bad_region=195, passed=1038
Got 1038 stars (including 764 good ones) from the SExtractor catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat 
util/solve_plate_with_UCAC5 got 1038 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.2'
Seting catalog search parameters based on the expected field of view 939.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013044 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010436 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 348 (Dec -31.3 to -20.7)
Done reading UCAC5 zone files...
Matched 753 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 752 matched stars entering correct_measured_positions(), 743 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 752 matched stars entering correct_measured_positions(), 840 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.41" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 348 (Dec -31.3 to -20.7)
Done reading UCAC5 zone files...
Matched 753 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 752 matched stars entering correct_measured_positions(), 840 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 752 matched stars entering correct_measured_positions(), 840 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 752 stars left (next iteration limit 827)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=752 robust_rms=5.092 arcsec worst_quadrant_rms=13.657 arcsec
SIP_REFIT: SIP order 3 trial: matched=752 robust_rms=0.689 arcsec worst_quadrant_rms=1.004 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=752 robust_rms_before=1.005 arcsec robust_rms_before_corrected=0.390 arcsec robust_rms_after=0.689 arcsec worst_quadrant_rms_before=0.502 worst_quadrant_rms_after=1.004
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.502 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits N_match=752 sigma_overall_arcsec=0.394 sigma_q1_arcsec=0.365 sigma_q2_arcsec=0.439 sigma_q3_arcsec=0.410 sigma_q4_arcsec=0.371 n_q1=234 n_q2=94 n_q3=293 n_q4=131 worst_quadrant_to_overall_ratio=1.114
The image catalog is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits -region wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits to local_wcs_cache/
'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits' -> 'local_wcs_cache/wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits'
Saving the final (post-refit) wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits to local_wcs_cache/
'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits' -> 'local_wcs_cache/wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits'
Saving the final (post-refit) wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits to local_wcs_cache/
'wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits' -> 'local_wcs_cache/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits'
Saving the final (post-refit) wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits to local_wcs_cache/
'wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits' -> 'local_wcs_cache/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits sigma_overall=0.281 worst_q_ratio=1.222
ref2=Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits sigma_overall=0.287 worst_q_ratio=1.108
new1=fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits sigma_overall=0.412 worst_q_ratio=1.213
new2=fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits sigma_overall=0.394 worst_q_ratio=1.114
reference average sigma_overall=0.284 worst_q_ratio=1.165
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889_astrometric_residuals.png (1498 matched stars from wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.26 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890_astrometric_residuals.png (1428 matched stars from wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.26 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276_astrometric_residuals.png (755 matched stars from wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277_astrometric_residuals.png (752 matched stars from wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits'
Saving fully-calibrated image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits'
Preparing the HTML report for the field Scl-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Scl-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
  
SExtractor catalog cache: saved Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.cat to cache
SExtractor catalog cache: saved Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Creating symlink local_wcs_cache/wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Creating symlink local_wcs_cache/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Creating symlink local_wcs_cache/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits exists and is non-empty
wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits exists and is non-empty
wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits exists and is non-empty
wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (1st reference image)
verification OK: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Image size: 941.1'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 00:57:36.183 -25:59:52.14 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits (1st new image)
verification OK: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Image size: 939.3'x624.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.89"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:57:38.140 -26:00:10.87 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 00:57:36.183 -25:59:52.14
Second-epoch image center 00:57:38.140 -26:00:10.87
Angular distance between the image centers 0.0090 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits (2nd new image)
verification OK: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Image size: 939.2'x624.8'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 00:57:40.149 -25:59:54.99 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 00:57:36.183 -25:59:52.14
Second-epoch image center 00:57:40.149 -25:59:54.99
Angular distance between the image centers 0.0149 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  00:57:38.140 -26:00:10.87
Second-epoch second image center 00:57:40.149 -25:59:54.99
Angular distance between the image centers 0.00872 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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits &> /tmp/tmp.qnSt54m1wf
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits &> /tmp/tmp.bg5ejQkWJp
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits &> /tmp/tmp.rMcCtMYXpu
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits &> /tmp/tmp.x5tg7elxqJ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Calibrating the magnitude scale
Found non-empty wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
Found non-empty wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits and wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat
The reference image (wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits) and catalog (wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat) found
'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat' -> 'wcsmag.cat'
Read 11611 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.0828 to 23.2015 deg, Dec -31.4441 to -20.1292 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 5.0828 to 23.2015 deg, Dec -31.4441 to -20.1292 deg
Loaded 4351 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): 3335 out of 3403 total matches.
Matched with Tycho-2 3403 out of 11611 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.546500
a=0.000000 b=1.000000 c=22.546500
From vast_summary.log: estimated ref. image limiting mag.:  -8.57
Updating vast_summary.log: Estimated ref. image limiting mag.:  13.98

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  13.98

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 11611 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.0828 to 23.2015 deg, Dec -31.4441 to -20.1292 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 5.0828 to 23.2015 deg, Dec -31.4441 to -20.1292 deg
Loaded 4351 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): 3335 out of 3403 total matches.
Matched with Tycho-2 3403 out of 11611 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Forced-photometry filter: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits -> calib.txt_param_ref_wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (aperture=5.5)
Read 11181 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 5.1380 to 23.2007 deg, Dec -31.4317 to -20.1283 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 5.1380 to 23.2007 deg, Dec -31.4317 to -20.1283 deg
Loaded 4335 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): 3341 out of 3405 total matches.
Matched with Tycho-2 3405 out of 11181 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Forced-photometry filter: calibrated wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits -> calib.txt_param_ref_wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits (aperture=5.5)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 3 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.6 pix  Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
 2.6 pix  Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
 2.3 pix  fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
 2.2 pix  fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Limiting magnitude estimates:
 14.0 mag.  Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
 13.9 mag.  Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
 13.1 mag.  fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
 13.1 mag.  fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
All-image limiting magnitude estimate:  13.1 (SNR )  12.6 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.qnSt54m1wf (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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits' -> 'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS_IMAGE_NAME=wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS-calibrated image found: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
Checking if the catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits alredy exist and is non-empty...
Catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits
WCS catalog name: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=297, bad_region=2287, passed=11607
Got 11607 stars (including 9105 good ones) from the SExtractor catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat 
util/solve_plate_with_UCAC5 got 11607 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 4855 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4848 matched stars entering correct_measured_positions(), 4848 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.43" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4848 matched stars entering correct_measured_positions(), 9781 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 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 4855 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4848 matched stars entering correct_measured_positions(), 9781 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 
Accuracy estimation diagnostic: 4848 matched stars entering correct_measured_positions(), 9781 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Excluding outliers - 4848 stars left (next iteration limit 5332)
Stop iterations.


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

SIP_REFIT: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits N_match=4848 sigma_overall_arcsec=0.441 sigma_q1_arcsec=0.546 sigma_q2_arcsec=0.489 sigma_q3_arcsec=0.391 sigma_q4_arcsec=0.357 n_q1=1434 n_q2=853 n_q3=1659 n_q4=902 worst_quadrant_to_overall_ratio=1.237
The image catalog is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits -region wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.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.bg5ejQkWJp (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/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits 574.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits' -> 'wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS_IMAGE_NAME=wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS-calibrated image found: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
Checking if the catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits alredy exist and is non-empty...
Catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat corresponding to the image wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits
WCS catalog name: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=2, blended=292, bad_region=2208, passed=11179
Got 11179 stars (including 8756 good ones) from the SExtractor catalog wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat 
util/solve_plate_with_UCAC5 got 11179 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.1'
Seting catalog search parameters based on the expected field of view 941.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013071 (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 0.010457 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 4861 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 4857 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 9419 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.44" 

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 292 to 351 (Dec -31.4 to -20.1)
Done reading UCAC5 zone files...
Matched 4862 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4858 matched stars entering correct_measured_positions(), 9419 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.45" 
Accuracy estimation diagnostic: 4858 matched stars entering correct_measured_positions(), 9419 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.46" 
Excluding outliers - 4858 stars left (next iteration limit 5342)
Stop iterations.


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

SIP_REFIT: wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits N_match=4858 sigma_overall_arcsec=0.452 sigma_q1_arcsec=0.557 sigma_q2_arcsec=0.491 sigma_q3_arcsec=0.406 sigma_q4_arcsec=0.378 n_q1=1459 n_q2=857 n_q3=1647 n_q4=895 worst_quadrant_to_overall_ratio=1.232
The image catalog is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits -region wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.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.rMcCtMYXpu (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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS_IMAGE_NAME=wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS-calibrated image found: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Checking if the catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
WCS catalog name: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=1, blended=168, bad_region=1084, passed=6940
Got 6940 stars (including 5714 good ones) from the SExtractor catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat 
util/solve_plate_with_UCAC5 got 6940 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.3'
Seting catalog search parameters based on the expected field of view 939.3 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013046 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010437 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 349 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 4862 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 4857 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.75" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 6110 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.75" 

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 293 to 349 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 4862 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 6110 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.77" 
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 6110 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.76" 
Excluding outliers - 4857 stars left (next iteration limit 5342)
Stop iterations.


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

SIP_REFIT: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4857 robust_rms=5.967 arcsec worst_quadrant_rms=9.128 arcsec
SIP_REFIT: SIP order 3 trial: matched=4857 robust_rms=1.012 arcsec worst_quadrant_rms=1.208 arcsec
SIP_REFIT: SIP order 5 trial: matched=4857 robust_rms=0.837 arcsec worst_quadrant_rms=1.008 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4857 robust_rms_before=1.414 arcsec robust_rms_before_corrected=0.791 arcsec robust_rms_after=0.837 arcsec worst_quadrant_rms_before=0.951 worst_quadrant_rms_after=1.008
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.951 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits N_match=4857 sigma_overall_arcsec=0.736 sigma_q1_arcsec=0.693 sigma_q2_arcsec=0.745 sigma_q3_arcsec=0.863 sigma_q4_arcsec=0.610 n_q1=1558 n_q2=768 n_q3=1615 n_q4=916 worst_quadrant_to_overall_ratio=1.173
The image catalog is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits -region wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.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.x5tg7elxqJ (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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.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_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS_IMAGE_NAME=wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS-calibrated image found: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Checking if the catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits alredy exist and is non-empty...
Catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat corresponding to the image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
WCS catalog name: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=1, blended=175, bad_region=1108, passed=7087
Got 7087 stars (including 5832 good ones) from the SExtractor catalog wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat 
util/solve_plate_with_UCAC5 got 7087 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 939.2'
Seting catalog search parameters based on the expected field of view 939.2 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013044 (47.0 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010436 (37.6 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 293 to 348 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4854 matched stars entering correct_measured_positions(), 4854 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.74" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4854 matched stars entering correct_measured_positions(), 6233 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.74" 

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 293 to 348 (Dec -31.3 to -20.6)
Done reading UCAC5 zone files...
Matched 4860 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 6233 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.75" 
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 6233 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.75" 
Excluding outliers - 4855 stars left (next iteration limit 5339)
Stop iterations.


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

SIP_REFIT: wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4855 robust_rms=5.910 arcsec worst_quadrant_rms=9.468 arcsec
SIP_REFIT: SIP order 3 trial: matched=4855 robust_rms=1.056 arcsec worst_quadrant_rms=1.222 arcsec
SIP_REFIT: SIP order 5 trial: matched=4855 robust_rms=0.842 arcsec worst_quadrant_rms=0.980 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4855 robust_rms_before=1.434 arcsec robust_rms_before_corrected=0.791 arcsec robust_rms_after=0.842 arcsec worst_quadrant_rms_before=0.892 worst_quadrant_rms_after=0.980
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.892 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits N_match=4855 sigma_overall_arcsec=0.722 sigma_q1_arcsec=0.736 sigma_q2_arcsec=0.717 sigma_q3_arcsec=0.809 sigma_q4_arcsec=0.600 n_q1=1550 n_q2=774 n_q3=1625 n_q4=906 worst_quadrant_to_overall_ratio=1.121
The image catalog is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits -region wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Saving fully-calibrated image wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/wcs_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits
Preparing the HTML report for the field Scl-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits at 00:55:06.54 -28:06:26.1:  13.09 +/- 0.09  detection
Forced photometry on wcs_Scl-02-Q2b1x1_2026-07-21_05-55-02_20.00sec_-0.00C_LIGHTs_0889.fits at 00:46:59.46 -30:11:06.5:  11.07 +/- 0.02  detection
Forced photometry on wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits at 00:46:59.46 -30:11:06.5:  11.05 +/- 0.02  detection
Forced photometry on wcs_Scl-02-Q2b1x1_2026-07-21_05-55-59_20.00sec_-0.00C_LIGHTs_0890.fits at 00:55:06.54 -28:06:26.1:  13.14 +/- 0.10  detection
Forced photometry reference-image weighted average:  13.11 +/- 0.06
Forced photometry reference-image weighted average:  11.06 +/- 0.01
Forced photometry filter REJECTED candidate at 00:55:06.54 -28:06:26.1: ref_mag=13.11 +/- 0.06 new_mean_mag=12.7986 delta=0.31 (need > 0.90)
Forced photometry filter REJECTED candidate at 00:46:59.46 -30:11:06.5: ref_mag=11.06 +/- 0.01 new_mean_mag=11.4715 delta=-0.41 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 1s
  
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Considering the candidate 20459_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277
The candidate 20459_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277 did not pass the final checks
Discovery image 1     2026 08 24.26924    2461276.76924    12.92    00:55:06.59 -28:06:25.8   4442 1927   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Discovery image 2     2026 08 24.26972    2461276.76972    12.72    00:55:06.48 -28:06:26.4   4437 1924   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits

  
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Considering the candidate 20460_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277
The candidate 20460_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277 did not pass the final checks
Discovery image 2     2026 08 24.26972    2461276.76972    11.88    00:47:34.75 -25:17:15.0   3415 3619   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits

Rejecting candidate due to large distance (13.4") between the two second-epoch detections
  
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Considering the candidate 20461_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277
The candidate 20461_fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277 did not pass the final checks
Discovery image 1     2026 08 24.26924    2461276.76924    11.44    00:46:59.49 -30:11:06.7   3374 0658   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-27-32_20.00sec_-0.00C_LIGHT_0276.fits
Discovery image 2     2026 08 24.26972    2461276.76972    11.53    00:46:59.44 -30:11:06.2   3369 0655   /data_ssd/NMW-TexasTech/workdir//img_2026-08-24_CI_Scl-02-Q2b1x1_022823_TTUQ2b1x1_101994_QzenkiwU/fd_Scl-02-Q2b1x1_2026-08-24_01-28-14_20.00sec_-0.00C_LIGHT_0277.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field Scl-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Scl-02-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461276.76924124 -observatory V36
10:00:15.31 +14:04:17.8 Mercury (-1.8mag)
12:56:12.53 -08:38:51.4 Venus (-4.5mag)
06:35:15.97 +23:36:28.1 Mars (1.3mag)
08:57:09.90 +17:46:25.9 Jupiter (-1.8mag)
00:54:31.02 +02:59:09.5 Saturn (0.5mag)
04:13:09.75 +21:00:38.4 Uranus (5.7mag)
00:14:58.89 +00:05:13.1 Neptune (7.7mag)
20:26:40.78 -23:35:48.4 Pluto (14.5mag)
19:10:25.43 -26:44:55.5 Moon (-11.5mag)
-rw-r--r-- 1 apache apache 363 Aug 24 02:32 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461276.76924124:
08:57:10.49 +17:46:23.2 Io (6.1mag)
08:57:03.21 +17:46:58.1 Europa (6.3mag)
08:57:15.04 +17:46:00.2 Ganymede (5.6mag)
08:57:07.48 +17:46:40.2 Callisto (6.9mag)
08:54:38.88 +17:55:34.2 Himalia (15.7mag)
08:57:11.98 +17:46:17.5 Thebe (16.6mag)
08:54:18.58 +17:51:07.4 Elara (17.7mag)
09:01:16.68 +17:18:55.2 Pasiphae (17.9mag)
08:59:15.00 +18:00:29.8 Carme (19.0mag)
00:54:19.59 +02:59:27.6 Titan (8.4mag)
00:54:24.86 +02:59:11.8 Rhea (9.7mag)
00:55:06.91 +03:01:08.9 Iapetus (11.1mag)
00:54:29.88 +02:59:35.1 Hyperion (14.4mag)
00:53:33.51 +02:50:21.6 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 24 02:32 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461276.76924124:
20:24:01.58 -12:31:51.2 JWST
15:57:25.30 +49:46:26.7 Chandra
10:12:44.16 -56:46:24.8 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 24 02:32 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461276.76924124 -observatory V36
03:29:58.50 +18:33:56.3 17.5mag P/1996 R2 (Lagerkvist)
17:59:59.45 -34:26:54.9 14.2mag P/2010 H2 (Vales)
07:08:08.71 -69:34:47.7 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:13:31.23 +33:21:08.7 17.7mag C/2017 K2 (PANSTARRS)
04:25:27.20 +42:52:05.6 17.6mag P/2021 N1 (ZTF)
22:25:06.49 +30:11:56.9 17.4mag C/2022 E2 (ATLAS)
06:58:36.92 +26:14:49.0 16.8mag C/2022 N2 (PANSTARRS)
10:36:29.26 +27:46:20.0 17.0mag C/2022 QE78 (ATLAS)
09:39:34.04 +05:17:40.6 18.0mag C/2022 R6 (PANSTARRS)
15:16:13.67 -12:57:52.5 18.0mag P/2023 B1 (PANSTARRS)
20:51:22.99 +63:45:05.0 18.0mag C/2023 H5 (Lemmon)
15:35:21.14 -14:24:18.6 14.6mag C/2023 R1 (PANSTARRS)
08:25:11.34 +32:06:32.9 15.6mag C/2024 E1 (Wierzchos)
15:05:41.34 +15:29:04.4 17.8mag C/2024 G6 (ATLAS)
18:44:57.18 +43:29:17.2 13.7mag C/2024 J3 (ATLAS)
20:46:31.30 +49:41:32.8 17.5mag C/2024 R4 (PANSTARRS)
05:27:04.37 -12:54:15.3 15.3mag C/2024 T5 (ATLAS)
07:05:35.94 +21:15:05.3 17.9mag C/2025 J1 (Borisov)
10:56:08.17 +19:49:16.9 17.0mag C/2025 V2 (Rankin)
13:08:46.05 +01:12:40.6 16.9mag C/2025 Y1 (ATLAS)
16:13:01.36 +76:03:03.5 16.4mag C/2026 A2 (Bok)
03:09:49.07 +46:20:57.6 17.3mag C/2026 B2 (Sun-Gao)
12:00:32.58 +10:05:54.0 17.4mag A/2026 E1
22:14:07.65 -32:48:18.6 7.2mag 10P/Tempel
11:38:56.90 -04:27:10.4 16.3mag 29P/Schwassmann-Wachmann
11:40:16.62 -00:35:47.0 17.4mag 63P/Wild
00:51:00.15 -06:12:33.4 15.4mag 65P/Gunn
06:10:50.81 +20:08:55.5 13.7mag 78P/Gehrels
20:24:24.58 -25:10:00.8 17.4mag 84P/Giclas
03:13:03.86 +14:37:09.8 16.9mag 88P/Howell
08:34:55.90 +25:17:02.8 16.4mag 93P/Lovas
04:53:24.28 +23:09:56.2 17.2mag 112P/Urata-Niijima
06:48:38.73 +27:56:40.6 16.0mag 114P/Wiseman-Skiff
09:56:03.67 +23:43:28.6 14.9mag 123P/West-Hartley
12:16:30.54 -16:18:36.1 17.3mag 124P/Mrkos
05:59:21.47 +20:59:37.8 16.0mag 128P/Shoemaker-Holt
06:54:58.86 +17:58:31.3 17.9mag 131P/Mueller
23:58:53.96 +03:01:56.1 17.4mag 139P/Vaisala-Oterma
03:06:59.55 -18:32:55.8 12.7mag 161P/Hartley-IRAS
08:09:45.58 +38:06:13.0 16.1mag 162P/Siding Spring
10:45:07.17 +27:18:14.9 12.3mag 169P/NEAT
03:08:50.45 +09:19:33.9 17.6mag 220P/McNaught
20:16:09.38 -51:33:22.2 18.0mag 259P/Garradd
04:08:46.50 +31:32:18.8 15.3mag 260P/McNaught
07:52:49.05 +36:57:22.3 17.3mag 295P/LINEAR
15:17:08.03 +01:20:17.3 17.8mag 391P/Kowalski
09:15:25.72 +17:34:12.7 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 24 02:32 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 24 02:32 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 24 02:32 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
22:16:10.733 +23:40:31.85  AT 2026xnv  2026-06-14.54 20.5
22:06:02.745 +21:38:59.91  AT 2026xnu  2026-06-14.54 20.68
12:04:33.241 +13:31:43.77  AT 2026xnt  2026-06-16.29 20.66
17:16:17.969 +32:53:41.29  AT 2026xns  2026-06-16.34 20.59
21:48:32.425 -29:28:38.76  AT 2026xnr  2026-06-16.55 19.93
20:44:08.930 -34:45:08.04  AT 2026xnq  2026-06-19.50 20.93
01:40:01.549 +15:24:08.32  AT 2026xnp  2026-06-21.59 20.11
22:59:54.981 +08:47:20.37  AT 2026xno  2026-06-22.57 20.61
22:34:44.112 -34:25:16.33  AT 2026xnn  2026-06-22.58 20.31
15:39:00.625 +01:51:45.97  AT 2026xnm  2026-07-09.30 20.53
22:18:23.260 +08:49:07.23  AT 2026xnl  2026-07-11.59 20.23
23:45:11.366 +23:12:01.58  AT 2026xnk  2026-07-16.50 20.23
17:52:40.604 +30:20:41.11  AT 2026xnj  2026-07-16.29 20.57
22:13:49.877 +15:15:41.07  AT 2026xni  2026-06-22.52 20.47
21:55:12.218 -25:50:43.90  AT 2026xnh  2026-07-08.51 20.23
17:42:05.047 +67:58:50.95  AT 2026xng  2026-08-05.89 19.07
15:05:35.464 +22:40:42.04  AT 2026xnf  2026-07-06.38 20.83
21:55:10.326 +01:47:27.63  AT 2026xne  2026-07-16.55 20.92
17:33:02.208 +23:15:50.89  AT 2026xnd  2026-07-19.39 20.4
17:58:43.835 +19:48:45.18  AT 2026xnc  2026-07-19.39 20.44
-rw-r--r-- 1 apache apache 87K Aug 24 02:32 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Aug 24 02:31:17 CDT 2026
=======================================
TIMING SExtractor: 1 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 28s (0.47 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 9s (0.15 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 3s (0.05 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 44s (0.73 min)
TIMING SExtractor: 5 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 7s (0.12 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 15s (0.25 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 25s (0.42 min)
FIELD_Scl-02-Q2b1x1: 83s (1.38 min)
=======================================
TOTAL_RUNTIME: 134s (2.23 min)
Finished: Mon Aug 24 02:33:31 CDT 2026