FITS images used in this processing run:

Field Per-02-Q2b1x1 reference image: Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Field Per-02-Q2b1x1 reference image: Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Field Per-02-Q2b1x1 second-epoch image: Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Field Per-02-Q2b1x1 second-epoch image: Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
First image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Last  image: 2461289.68641184 06.09.2026 04:28:15.983   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.52
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: 8 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):  17952
Objects passed selection criteria:  17816
Measurements per detected object (mean, median, min, max):    2.1    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.1    2.0    2    4
Average stars detected per image: 10014
Average stars matched: 9666.5 (96.5299 %)
Memory usage VmPeak:   244840 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Sep  5 23:49:39 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
First image: 2461049.58214624 09.01.2026 01:58:07.435   /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Last  image: 2461289.68641184 06.09.2026 04:28:15.983   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 19
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.19
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: 38 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):  140639
Objects passed selection criteria:  140015
Measurements per detected object (mean, median, min, max):    2.1    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.1    2.0    2    4
Average stars detected per image: 80706.8
Average stars matched: 77134.8 (95.5741 %)
Memory usage VmPeak:   616588 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Sep  5 23:51:20 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: 
Per-02-Q2b1x1
#######################################
########### Starting Per-02-Q2b1x1 ###########
Processing Per-02-Q2b1x1
server tau has sufficient free disk space available: 279193 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 279193 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.png' -> 'transient_report/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits_preview.png'

Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits


renamed 'Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.png' -> 'transient_report/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits_preview.png'

Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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= 545.6414
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 824.5112
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1907.1556
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 354.3395
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1901.6737
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 362.4430
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.49525
INFO:                  SECOND_EPOCH__SD_ratio= 0.022
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 =     27.2000007629395 / [degC] Focuser temperature
AMBTEMP =                 27.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-05T23:27:18.0840532' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-06T04:27:18.0840532' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61289.1856259722 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-06T04:27:27.9830162' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61289.185740544 / 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      =     53.9997416651888 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9994702021324 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9755555555556 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =                 44.1 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.81643467355555 / 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  = 'Per-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20494 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20494 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     27.2000007629395 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     27.2000007629395 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 43.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.71 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                351.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/d_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits :)

Spent 0.876471 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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/d_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     27.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 27.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-05T23:28:15.9837048' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-06T04:28:15.9837048' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61289.1862960993 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-06T04:28:25.8834515' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61289.1864106827 / 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      =     53.9997415212798 / [deg] RA of telescope" status=0
Record 32: "DEC     =     45.9994701653123 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.1169444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     44.1963888888889 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.78258993569571 / 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  = 'Per-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '03 36 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+46 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20494 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20494 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     27.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     27.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 14.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 43.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               900.71 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 27.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                351.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             9.400752 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             7.900632 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/d_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits :)

Spent 0.853800 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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/d_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Previews of the CALIBRATED second-epoch images:


fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits



fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
  
SExtractor catalog cache: saved Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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: 2461289.68574171
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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits exists and is non-empty
wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits exists and is non-empty
wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Image size: 941.5'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: 03:36:01.913 +46:00:00.61 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_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits (1st new image)
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Image size: 940.9'x624.6'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.87"/pix along the Y axis
Image center: 03:36:01.392 +45:59:43.87 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:01.392 +45:59:43.87
Angular distance between the image centers 0.0049 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits (2nd new image)
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Image size: 940.8'x624.6'  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: 03:36:04.471 +46:00:22.26 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:04.471 +46:00:22.26
Angular distance between the image centers 0.0095 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  03:36:01.392 +45:59:43.87
Second-epoch second image center 03:36:04.471 +46:00:22.26
Angular distance between the image centers 0.01390 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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits &> /tmp/tmp.q8MxEjGtge
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits &> /tmp/tmp.0AjT336nnJ
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits &> /tmp/tmp.jmbjGbp4Uf
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits &> /tmp/tmp.DQyckWRTaP
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits) and catalog (wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat) found
'wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 24919 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2386 to 65.8886 deg, Dec +39.8263 to +51.4097 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 41.2386 to 65.8886 deg, Dec 39.8263 to 51.4097 deg
Loaded 12587 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): 8299 out of 9376 total matches.
Matched with Tycho-2 9376 out of 24919 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.954600
a=0.000000 b=1.000000 c=22.954600
From vast_summary.log: estimated ref. image limiting mag.:  -7.52
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.43

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.43

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 24919 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2386 to 65.8886 deg, Dec +39.8263 to +51.4097 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 41.2386 to 65.8886 deg, Dec 39.8263 to 51.4097 deg
Loaded 12587 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): 8299 out of 9376 total matches.
Matched with Tycho-2 9376 out of 24919 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (aperture=5.7)
Read 25014 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2390 to 65.8888 deg, Dec +39.8264 to +51.4150 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 41.2390 to 65.8888 deg, Dec 39.8264 to 51.4150 deg
Loaded 12591 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): 8306 out of 9365 total matches.
Matched with Tycho-2 9365 out of 25014 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (aperture=5.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.0 pix  Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 2.0 pix  Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 2.6 pix  fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
 2.5 pix  fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Limiting magnitude estimates:
 15.4 mag.  Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 15.4 mag.  Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 11.3 mag.  fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
 11.2 mag.  fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
All-image limiting magnitude estimate:  11.2 (SNR )   9.9 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.q8MxEjGtge (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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Checking if the catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS catalog name: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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=2608, bad_region=5544, passed=24919
Got 24919 stars (including 17235 good ones) from the SExtractor catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 24919 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4940 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 4918 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 20428 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4940 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 20428 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 20428 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.40" 
Excluding outliers - 4919 stars left (next iteration limit 5409)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits N_match=4919 sigma_overall_arcsec=0.425 sigma_q1_arcsec=0.552 sigma_q2_arcsec=0.379 sigma_q3_arcsec=0.375 sigma_q4_arcsec=0.379 n_q1=1615 n_q2=801 n_q3=1627 n_q4=876 worst_quadrant_to_overall_ratio=1.300
The image catalog is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -region wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.0AjT336nnJ (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/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Checking if the catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS catalog name: wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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=17, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=2561, bad_region=5578, passed=24997
Got 24997 stars (including 17348 good ones) from the SExtractor catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 24997 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4942 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 4919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 20490 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 649 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4942 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4920 matched stars entering correct_measured_positions(), 20490 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4920 matched stars entering correct_measured_positions(), 20490 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4920 stars left (next iteration limit 5410)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits N_match=4920 sigma_overall_arcsec=0.382 sigma_q1_arcsec=0.466 sigma_q2_arcsec=0.360 sigma_q3_arcsec=0.350 sigma_q4_arcsec=0.356 n_q1=1613 n_q2=791 n_q3=1642 n_q4=874 worst_quadrant_to_overall_ratio=1.221
The image catalog is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -region wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.jmbjGbp4Uf (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS-calibrated image found: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Checking if the catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS catalog name: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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=28, bad_region=11, passed=669
Got 669 stars (including 630 good ones) from the SExtractor catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat 
util/solve_plate_with_UCAC5 got 669 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.9'
Seting catalog search parameters based on the expected field of view 940.9 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013068 (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 0.010454 (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 653 to 708 (Dec 40.8 to 51.3)
Done reading UCAC5 zone files...
Matched 617 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 610 matched stars entering correct_measured_positions(), 589 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 610 matched stars entering correct_measured_positions(), 635 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.63" 

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 653 to 708 (Dec 40.8 to 51.3)
Done reading UCAC5 zone files...
Matched 617 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 610 matched stars entering correct_measured_positions(), 636 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.66" 
Accuracy estimation diagnostic: 610 matched stars entering correct_measured_positions(), 636 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 
Excluding outliers - 610 stars left (next iteration limit 671)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=610 robust_rms=3.515 arcsec worst_quadrant_rms=15.655 arcsec
SIP_REFIT: SIP order 3 trial: matched=610 robust_rms=0.683 arcsec worst_quadrant_rms=0.872 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=610 robust_rms_before=1.146 arcsec robust_rms_before_corrected=0.723 arcsec robust_rms_after=0.683 arcsec worst_quadrant_rms_before=1.085 worst_quadrant_rms_after=0.872
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Image size: 940.7'x624.5'  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: 03:36:01.357 +45:59:43.29 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 669 stars ###
'wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/correct_sextractor_wcs_catalog_usingxy2sky71392.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
SIP_REFIT: applied the refit solution (order 3, robust RMS 1.146 -> 0.683 arcsec)
WCS_QUALITY_DIAG: file=fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits N_match=610 sigma_overall_arcsec=0.673 sigma_q1_arcsec=0.501 sigma_q2_arcsec=0.750 sigma_q3_arcsec=0.704 sigma_q4_arcsec=0.627 n_q1=50 n_q2=45 n_q3=293 n_q4=222 worst_quadrant_to_overall_ratio=1.114
The image catalog is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits -region wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.DQyckWRTaP (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS-calibrated image found: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Checking if the catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS catalog name: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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=31, bad_region=18, passed=834
Got 834 stars (including 785 good ones) from the SExtractor catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat 
util/solve_plate_with_UCAC5 got 834 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (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 0.010453 (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 653 to 708 (Dec 40.8 to 51.3)
Done reading UCAC5 zone files...
Matched 768 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 761 matched stars entering correct_measured_positions(), 731 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 761 matched stars entering correct_measured_positions(), 783 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.59" 

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 653 to 708 (Dec 40.8 to 51.3)
Done reading UCAC5 zone files...
Matched 768 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 761 matched stars entering correct_measured_positions(), 782 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Accuracy estimation diagnostic: 761 matched stars entering correct_measured_positions(), 782 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.63" 
Excluding outliers - 761 stars left (next iteration limit 837)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=761 robust_rms=1.556 arcsec worst_quadrant_rms=35.204 arcsec
SIP_REFIT: SIP order 3 trial: matched=761 robust_rms=0.693 arcsec worst_quadrant_rms=0.762 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=761 robust_rms_before=1.268 arcsec robust_rms_before_corrected=0.672 arcsec robust_rms_after=0.693 arcsec worst_quadrant_rms_before=0.803 worst_quadrant_rms_after=0.762
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.803 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits N_match=761 sigma_overall_arcsec=0.698 sigma_q1_arcsec=0.700 sigma_q2_arcsec=0.624 sigma_q3_arcsec=0.711 sigma_q4_arcsec=0.661 n_q1=89 n_q2=49 n_q3=359 n_q4=264 worst_quadrant_to_overall_ratio=1.019
The image catalog is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits -region wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits to local_wcs_cache/
'wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'local_wcs_cache/wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits'
Saving the final (post-refit) wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits to local_wcs_cache/
'wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'local_wcs_cache/wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits'
Saving the final (post-refit) wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits to local_wcs_cache/
'wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits' -> 'local_wcs_cache/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits'
Saving the final (post-refit) wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits to local_wcs_cache/
'wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits' -> 'local_wcs_cache/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits sigma_overall=0.425 worst_q_ratio=1.300
ref2=Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits sigma_overall=0.382 worst_q_ratio=1.221
new1=fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits sigma_overall=0.673 worst_q_ratio=1.114
new2=fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits sigma_overall=0.698 worst_q_ratio=1.019
reference average sigma_overall=0.4035 worst_q_ratio=1.2605
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020_astrometric_residuals.png (4919 matched stars from wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.39 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021_astrometric_residuals.png (4920 matched stars from wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172_astrometric_residuals.png (610 matched stars from wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.56 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173_astrometric_residuals.png (761 matched stars from wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.61 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits'
Saving fully-calibrated image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits'
Preparing the HTML report for the field Per-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Per-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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
  
SExtractor catalog cache: saved Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Creating symlink local_wcs_cache/wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Creating symlink local_wcs_cache/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Creating symlink local_wcs_cache/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits exists and is non-empty
wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits exists and is non-empty
wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Image size: 941.5'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: 03:36:01.913 +46:00:00.61 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_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits (1st new image)
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Image size: 940.7'x624.5'  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: 03:36:01.357 +45:59:43.29 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:01.357 +45:59:43.29
Angular distance between the image centers 0.0051 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits (2nd new image)
verification OK: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Image size: 940.8'x624.6'  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: 03:36:04.471 +46:00:22.26 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 03:36:01.913 +46:00:00.61
Second-epoch image center 03:36:04.471 +46:00:22.26
Angular distance between the image centers 0.0095 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  03:36:01.357 +45:59:43.29
Second-epoch second image center 03:36:04.471 +46:00:22.26
Angular distance between the image centers 0.01409 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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits &> /tmp/tmp.fUpXYtHMHy
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits &> /tmp/tmp.Yrif7vD2Zs
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits &> /tmp/tmp.h4QLCcxBVp
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits &> /tmp/tmp.9FxDNLe2qO
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits and wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits) and catalog (wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat) found
'wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 189134 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2226 to 65.9097 deg, Dec +39.7810 to +51.4146 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 41.2226 to 65.9097 deg, Dec 39.7810 to 51.4146 deg
Loaded 12673 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): 6489 out of 9455 total matches.
Matched with Tycho-2 9455 out of 189134 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.821000
a=0.000000 b=1.000000 c=22.821000
From vast_summary.log: estimated ref. image limiting mag.:  -7.19
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.63

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.63

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 189134 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2226 to 65.9097 deg, Dec +39.7810 to +51.4146 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 41.2226 to 65.9097 deg, Dec 39.7810 to 51.4146 deg
Loaded 12673 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): 6489 out of 9455 total matches.
Matched with Tycho-2 9455 out of 189134 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (aperture=4.3)
Read 187812 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.2223 to 65.9102 deg, Dec +39.7810 to +51.4199 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 41.2223 to 65.9102 deg, Dec 39.7810 to 51.4199 deg
Loaded 12677 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): 6500 out of 9428 total matches.
Matched with Tycho-2 9428 out of 187812 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (aperture=4.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 15 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.8 pix  Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 1.9 pix  Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 2.2 pix  fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
 2.2 pix  fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Limiting magnitude estimates:
 15.6 mag.  Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
 15.6 mag.  Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
 12.6 mag.  fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
 12.8 mag.  fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
All-image limiting magnitude estimate:  12.6 (SNR )  12.3 (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.fUpXYtHMHy (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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits' -> 'wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
Checking if the catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits
WCS catalog name: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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=43, blended=23506, bad_region=33336, passed=189091
Got 189091 stars (including 135790 good ones) from the SExtractor catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 189091 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4933 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4923 matched stars entering correct_measured_positions(), 4923 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4923 matched stars entering correct_measured_positions(), 162706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

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 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4933 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4923 matched stars entering correct_measured_positions(), 162706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 4923 matched stars entering correct_measured_positions(), 162706 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4923 stars left (next iteration limit 5415)
Stop iterations.


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

SIP_REFIT: wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.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_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits N_match=4923 sigma_overall_arcsec=0.405 sigma_q1_arcsec=0.527 sigma_q2_arcsec=0.369 sigma_q3_arcsec=0.359 sigma_q4_arcsec=0.356 n_q1=1620 n_q2=815 n_q3=1614 n_q4=874 worst_quadrant_to_overall_ratio=1.300
The image catalog is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits -region wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-07_20.00sec_-15.00C_LIGHT_0020.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.Yrif7vD2Zs (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/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits' -> 'wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
Checking if the catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits
WCS catalog name: wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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=6, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=36, blended=23390, bad_region=33357, passed=187770
Got 187770 stars (including 134514 good ones) from the SExtractor catalog wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 187770 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.5'
Seting catalog search parameters based on the expected field of view 941.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013076 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010461 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4932 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 4919 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 161324 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 

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 648 to 709 (Dec 39.8 to 51.4)
Done reading UCAC5 zone files...
Matched 4932 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 161324 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4919 matched stars entering correct_measured_positions(), 161324 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4919 stars left (next iteration limit 5410)
Stop iterations.


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

SIP_REFIT: wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.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_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits N_match=4919 sigma_overall_arcsec=0.370 sigma_q1_arcsec=0.437 sigma_q2_arcsec=0.354 sigma_q3_arcsec=0.343 sigma_q4_arcsec=0.344 n_q1=1627 n_q2=807 n_q3=1602 n_q4=883 worst_quadrant_to_overall_ratio=1.180
The image catalog is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits -region wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-02-Q2b1x1_2026-01-08_19-58-49_20.00sec_-15.00C_LIGHT_0021.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.h4QLCcxBVp (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS-calibrated image found: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Checking if the catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
WCS catalog name: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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=177, bad_region=294, passed=6521
Got 6521 stars (including 6041 good ones) from the SExtractor catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat 
util/solve_plate_with_UCAC5 got 6521 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.7'
Seting catalog search parameters based on the expected field of view 940.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013065 (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 0.010452 (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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4851 matched stars entering correct_measured_positions(), 4844 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.07" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4851 matched stars entering correct_measured_positions(), 6359 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.05" 

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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4851 matched stars entering correct_measured_positions(), 6358 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.09" 
Accuracy estimation diagnostic: 4851 matched stars entering correct_measured_positions(), 6358 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 1.11" 
Excluding outliers - 4851 stars left (next iteration limit 5336)
Stop iterations.


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

SIP_REFIT: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.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=4851 robust_rms=4.820 arcsec worst_quadrant_rms=6.531 arcsec
SIP_REFIT: SIP order 3 trial: matched=4851 robust_rms=1.222 arcsec worst_quadrant_rms=1.496 arcsec
SIP_REFIT: SIP order 5 trial: matched=4851 robust_rms=1.151 arcsec worst_quadrant_rms=1.404 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4851 robust_rms_before=1.241 arcsec robust_rms_before_corrected=1.165 arcsec robust_rms_after=1.151 arcsec worst_quadrant_rms_before=1.386 worst_quadrant_rms_after=1.404
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 1.386 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits N_match=4851 sigma_overall_arcsec=1.092 sigma_q1_arcsec=1.195 sigma_q2_arcsec=0.940 sigma_q3_arcsec=1.260 sigma_q4_arcsec=1.008 n_q1=539 n_q2=625 n_q3=1939 n_q4=1748 worst_quadrant_to_overall_ratio=1.154
The image catalog is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits -region wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.9FxDNLe2qO (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS_IMAGE_NAME=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS-calibrated image found: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Checking if the catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat corresponding to the image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
WCS catalog name: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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=241, bad_region=312, passed=8137
Got 8137 stars (including 7573 good ones) from the SExtractor catalog wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat 
util/solve_plate_with_UCAC5 got 8137 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.8'
Seting catalog search parameters based on the expected field of view 940.8 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013067 (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 0.010453 (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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4897 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 4844 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.93" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 7951 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.91" 

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 651 to 708 (Dec 40.3 to 51.3)
Done reading UCAC5 zone files...
Matched 4898 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4854 matched stars entering correct_measured_positions(), 7950 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.94" 
Accuracy estimation diagnostic: 4854 matched stars entering correct_measured_positions(), 7950 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.96" 
Excluding outliers - 4854 stars left (next iteration limit 5340)
Stop iterations.


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

SIP_REFIT: wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.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=4854 robust_rms=2.971 arcsec worst_quadrant_rms=6.396 arcsec
SIP_REFIT: SIP order 3 trial: matched=4854 robust_rms=1.048 arcsec worst_quadrant_rms=1.268 arcsec
SIP_REFIT: SIP order 5 trial: matched=4854 robust_rms=0.987 arcsec worst_quadrant_rms=1.236 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=4854 robust_rms_before=1.445 arcsec robust_rms_before_corrected=1.006 arcsec robust_rms_after=1.048 arcsec worst_quadrant_rms_before=1.222 worst_quadrant_rms_after=1.268
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 1.222 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits N_match=4854 sigma_overall_arcsec=0.959 sigma_q1_arcsec=0.940 sigma_q2_arcsec=0.816 sigma_q3_arcsec=1.070 sigma_q4_arcsec=0.917 n_q1=768 n_q2=506 n_q3=1898 n_q4=1682 worst_quadrant_to_overall_ratio=1.116
The image catalog is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits -region wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Saving fully-calibrated image wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Preparing the HTML report for the field Per-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
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 212589_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 212589_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 2     2026 09 06.18641    2461289.68641    11.00    03:49:36.42 +41:49:02.9   6237 0652   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

Rejecting candidate due to large distance (37.1") between the two second-epoch detections
  
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Considering the candidate 213030_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 213030_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 2     2026 09 06.18641    2461289.68641    11.94    03:30:26.17 +48:06:28.2   4259 4485   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:30:26.05 +48:06:28.7 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 139144_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 139144_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.89    03:24:19.71 +49:51:33.0   3714 5579   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:24:19.72 +49:51:33.0 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 176065_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 176065_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.92    03:29:22.20 +49:30:27.5   4195 5337   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:29:22.20 +49:30:27.9 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 170155_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 170155_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.96    03:36:29.35 +48:11:29.4   4870 4513   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:36:29.35 +48:11:30.4 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 133414_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 133414_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.98    03:42:55.17 +47:47:12.3   5515 4258   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:42:55.19 +47:47:12.7 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 145947_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 145947_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    11.89    03:09:46.85 +47:58:17.7   2168 4570   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

Rejecting candidate due to large distance (48.8") between the two second-epoch detections
  
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Considering the candidate 100381_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 100381_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.97    03:32:26.12 +46:03:22.9   4410 3238   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:32:26.12 +46:03:23.3 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 117695_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 117695_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    7.23    03:29:26.34 +46:56:16.4   4123 3783   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:29:26.34 +46:56:16.4 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 150966_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 150966_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    7.04    03:30:37.02 +48:06:11.1   4278 4481   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:30:37.04 +48:06:11.4 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 138288_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 138288_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.98    03:32:08.68 +48:01:21.8   4429 4426   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:32:08.68 +48:01:22.0 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 138730_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 138730_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.91    03:30:34.62 +47:59:39.6   4270 4415   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:30:34.63 +47:59:39.6 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 182408_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 182408_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.94    03:28:03.21 +49:03:42.8   4051 5073   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:28:03.18 +49:03:43.5 in the exclusion list exclusion_list_bsc.txt ****
  
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Considering the candidate 30459_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 30459_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    7.05    03:45:11.59 +42:34:45.1   5740 1111   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:45:11.57 +42:34:45.0 in the exclusion list exclusion_list_bbsc.txt ****
  
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Considering the candidate 86613_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173
The candidate 86613_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173 did not pass the final checks
Discovery image 3     2026 09 06.18641    2461289.68641    6.55    03:09:30.73 +44:51:25.6   1928 2696   /data_ssd/NMW-TexasTech/workdir//img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits

**** FOUND  03:09:30.59 +44:51:25.8 in the exclusion list exclusion_list_bbsc.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field Per-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-09-05_CI_Per-02-Q2b1x1_234656_TTUQ2b1x1_4182881_SKyObJ29/monitoring_positions.txt
Read 6522 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.5121 to 65.6185 deg, Dec +40.3230 to +51.2827 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 41.5121 to 65.6185 deg, Dec 40.3230 to 51.2827 deg
Loaded 11627 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): 2714 out of 2815 total matches.
Matched with Tycho-2 2815 out of 6522 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits
Observation time (mid-exposure, UTC): JD 2461289.68574 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 54.00450 deg  Dec= +45.99451 deg
Frame center: alt= +15.170 deg  az= 49.613 deg  airmass= 3.7562
Header cross-check: CENTALT= 14.976 deg (difference +0.195 deg)
Header cross-check: AIRMASS= 3.8164 (we compute 3.7562)
Airmass zero-point fit: REJECT_K_RANGE  k= -0.0599 +/- 0.0230 mag/airmass  N= 2198  airmass span 2.3900-5.7590  scatter 0.8284 mag
Source monitoring: airmass zero-point for wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits: REJECT_K_RANGE -0.218150 +0.059909 3.7562 -0.0599 2198 3.3690 0.8284 2.3900 5.7590
Forced photometry (list mode): image=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits list=monitoring_pixlist4186289.tmp aperture=4.7
Image size: 9576 x 6388
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).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 19.965800
Forced photometry: center=(4227.35, 1950.90) aperture=4.7
Annulus: inner=9.40 outer=23.50
Background annulus: 1455 pixels
Iterative clipping converged after 2 iterations, 1450/1455 pixels remain
SExtractor background: mode=1395.75 median=1395.00 mean=1394.50 sigma=54.95 -> bg=1395.75 (1450 pixels)
Aperture sum=24376.31 N_eff=17.3494
Net flux=160.82 noise=228.89 SNR=0.70
Instrumental magnitude: -7.0919
Calibrated magnitude: 12.8739
Source monitoring: 1 position(s) measured on wcs_fd_Per-02-Q2b1x1_2026-09-05_23-27-18_20.00sec_-0.00C_LIGHT_0172.fits (aperture 4.7 pix)
Read 8141 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 41.5123 to 65.6312 deg, Dec +40.3331 to +51.2921 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 41.5123 to 65.6312 deg, Dec 40.3331 to 51.2921 deg
Loaded 11621 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): 3065 out of 3193 total matches.
Matched with Tycho-2 3193 out of 8141 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Observation time (mid-exposure, UTC): JD 2461289.68641 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 54.01747 deg  Dec= +46.00533 deg
Frame center: alt= +15.309 deg  az= 49.693 deg  airmass= 3.7240
Header cross-check: CENTALT= 15.117 deg (difference +0.192 deg)
Header cross-check: AIRMASS= 3.7826 (we compute 3.7240)
Airmass zero-point fit: OK  k= +0.0009 +/- 0.0227 mag/airmass  N= 2426  airmass span 2.3792-5.7421  scatter 0.8335 mag
Source monitoring: airmass zero-point for wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits: OK +0.041394 -0.000917 3.7240 +0.0009 2426 3.3629 0.8335 2.3792 5.7421
Forced photometry (list mode): image=wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits list=monitoring_pixlist4186289.tmp aperture=4.6
Image size: 9576 x 6388
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).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 20.061800
Forced photometry: center=(4221.62, 1944.47) aperture=4.6
Annulus: inner=9.20 outer=23.00
Background annulus: 1400 pixels
Iterative clipping converged after 1 iterations, 1396/1400 pixels remain
SExtractor background: mode=1370.92 median=1371.00 mean=1371.05 sigma=53.81 -> bg=1370.92 (1396 pixels)
Aperture sum=23510.24 N_eff=16.6190
Net flux=726.86 noise=219.35 SNR=3.31
Instrumental magnitude: -7.1536
Calibrated magnitude: 12.9082
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits
Source monitoring: 1 position(s) measured on wcs_fd_Per-02-Q2b1x1_2026-09-05_23-28-15_20.00sec_-0.00C_LIGHT_0173.fits (aperture 4.6 pix)
########### Completed Per-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)2461289.68574171 -observatory V36
11:31:50.06 +04:19:49.9 Mercury (-1.0mag)
13:33:14.00 -14:05:40.8 Venus (-4.7mag)
07:10:58.96 +23:03:01.2 Mars (1.2mag)
09:08:07.95 +17:01:24.9 Jupiter (-1.8mag)
00:51:59.20 +02:40:25.9 Saturn (0.5mag)
04:13:40.32 +21:01:56.9 Uranus (5.7mag)
00:13:51.08 -00:02:31.3 Neptune (7.7mag)
20:25:40.25 -23:39:21.5 Pluto (14.5mag)
06:37:26.80 +26:30:48.7 Moon (-9.7mag)
-rw-r--r-- 1 apache apache 362 Sep  5 23:49 planets.txt
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Positions of selected moons from JPL HORIZONS for JD(UT)2461289.68574171:
09:08:03.44 +17:01:48.2 Io (6.2mag)
09:08:18.82 +17:00:32.1 Europa (6.3mag)
09:08:24.93 +17:00:01.4 Ganymede (5.7mag)
09:07:41.50 +17:03:34.0 Callisto (6.9mag)
09:05:52.05 +17:17:26.7 Himalia (15.7mag)
09:08:07.16 +17:01:29.3 Thebe (16.6mag)
09:05:29.91 +17:11:29.1 Elara (17.7mag)
09:12:03.10 +16:29:19.7 Pasiphae (17.9mag)
09:09:17.82 +17:18:53.3 Carme (19.0mag)
00:52:00.76 +02:40:46.0 Titan (8.3mag)
00:51:56.16 +02:40:31.7 Rhea (9.6mag)
00:52:17.27 +02:43:01.6 Iapetus (11.0mag)
00:52:10.61 +02:39:46.2 Hyperion (14.3mag)
00:50:47.14 +02:30:16.4 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  5 23:49 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461289.68574171:
21:56:15.24 -00:08:32.2 JWST
14:23:30.00 +55:06:35.4 Chandra
02:30:00.96 +62:32:42.9 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  5 23:49 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461289.68574171 -observatory V36
03:39:44.89 +19:17:16.0 17.4mag P/1996 R2 (Lagerkvist)
18:02:32.07 -34:13:54.7 14.3mag P/2010 H2 (Vales)
07:18:37.48 -70:14:25.6 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:15:33.68 +33:40:17.7 17.7mag C/2017 K2 (PANSTARRS)
04:49:46.61 +45:18:33.8 15.7mag P/2021 N1 (ZTF)
04:49:46.61 +45:18:33.8 15.7mag P/2021 N1 (ZTF)
04:49:46.61 +45:18:33.8 15.7mag P/2021 N1 (ZTF)
04:49:46.61 +45:18:33.8 15.7mag P/2021 N1 (ZTF)
22:14:22.58 +28:48:15.9 17.4mag C/2022 E2 (ATLAS)
07:09:20.30 +25:59:58.9 16.9mag C/2022 N2 (PANSTARRS)
10:48:28.32 +27:15:59.1 17.1mag C/2022 QE78 (ATLAS)
09:47:57.71 +05:14:20.4 18.0mag C/2022 R6 (PANSTARRS)
15:29:50.98 -15:33:06.1 14.8mag C/2023 R1 (PANSTARRS)
08:37:24.64 +32:49:28.3 15.8mag C/2024 E1 (Wierzchos)
15:06:27.63 +15:20:09.5 17.9mag C/2024 G6 (ATLAS)
18:34:19.74 +43:12:56.8 13.7mag C/2024 J3 (ATLAS)
20:27:42.14 +49:21:29.6 17.4mag C/2024 R4 (PANSTARRS)
05:35:00.42 -13:00:43.1 15.1mag C/2024 T5 (ATLAS)
07:11:14.24 +18:45:53.1 17.8mag C/2025 J1 (Borisov)
11:16:11.84 +18:51:19.7 16.8mag C/2025 V2 (Rankin)
13:18:42.91 +00:12:20.3 16.8mag C/2025 Y1 (ATLAS)
16:38:32.70 +74:12:53.3 16.1mag C/2026 A2 (Bok)
03:06:19.19 +46:10:03.5 17.4mag C/2026 B2 (Sun-Gao)
12:12:14.63 +11:11:30.7 17.5mag A/2026 E1
22:25:05.64 -34:57:23.1 13.4mag 10P/Tempel
01:17:45.20 +36:47:53.7 18.0mag 11P/Tempel-Swift-LINEAR
11:47:25.68 -05:23:06.3 16.3mag 29P/Schwassmann-Wachmann
12:06:19.84 -04:44:33.5 17.6mag 63P/Wild
00:45:16.38 -06:59:54.4 15.4mag 65P/Gunn
06:37:10.16 +19:20:07.2 17.1mag 78P/Gehrels
03:17:11.44 +14:58:57.8 16.7mag 88P/Howell
05:34:32.62 +28:12:17.5 17.5mag 112P/Urata-Niijima
07:28:29.32 +25:05:48.7 17.9mag 114P/Wiseman-Skiff
10:25:24.40 +21:06:08.6 14.8mag 123P/West-Hartley
12:44:09.54 -20:57:01.0 17.4mag 124P/Mrkos
06:16:03.68 +20:40:22.1 15.9mag 128P/Shoemaker-Holt
02:36:18.72 -17:43:59.9 15.3mag 161P/Hartley-IRAS
09:39:47.70 +14:28:29.1 12.0mag 169P/NEAT
03:23:28.62 +08:33:49.7 14.5mag 220P/McNaught
04:45:03.53 +35:58:08.3 15.2mag 260P/McNaught
08:28:52.92 +35:49:01.3 17.3mag 295P/LINEAR
15:24:31.31 -00:07:26.8 17.9mag 391P/Kowalski
09:26:49.38 +16:54:26.1 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.1K Sep  5 23:49 comets.txt
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List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
-rw-r--r-- 1 apache apache 5.7K Sep  5 23:49 asassn_transients_list.txt
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Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
-rw-r--r-- 1 apache apache 190K Sep  5 23:49 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
22:48:01.050 +02:29:57.95  AT 2026ymz  2026-08-05.73 21.98
22:56:40.110 +02:46:51.37  AT 2026ymy  2026-08-04.80 21.96
01:44:34.660 +05:27:13.55  AT 2026ymx  2026-08-01.88 21.27
01:29:50.630 +00:07:42.35  AT 2026ymw  2026-07-21.86 22.34
01:20:55.160 +01:31:29.58  AT 2026ymv  2026-07-20.88 22.17
23:25:01.600 +02:19:39.37  AT 2026ymu  2026-07-20.78 22.49
22:52:58.240 +03:42:25.38  AT 2026ymt  2026-08-05.73 21.81
23:42:43.162 +19:31:30.19  AT 2026yms  2026-08-09.94 19.57
21:20:13.290 -37:42:51.98  AT 2026ymr  2026-08-09.45 19.171
17:37:51.010 -21:58:53.20  AT 2026ymq  2026-08-09.59 14.86
22:57:17.960 +47:07:41.80  AT 2026ymp  2026-08-09.33 14.3
21:11:14.725 +16:08:57.69  AT 2026ymo  2026-08-04.97 19.97
00:45:33.395 +25:23:53.86  AT 2026ymn  2026-08-10.09 19.737
16:42:12.700 +21:20:23.08  AT 2026ymm  2026-08-09.32 19.568
00:16:26.794 -31:27:04.55  AT 2026yml  2026-08-09.54 18.69
20:46:11.408 +21:33:49.40  SN 2026ymk  2026-08-10.01 19.906
16:27:21.310 +63:36:15.74  AT 2026ymj  2026-08-08.31 19.192
00:43:25.659 +22:56:56.07  SN 2026ymi  2026-08-10.10 19.196
00:25:21.922 +28:26:14.78  AT 2026ymh  2026-08-09.50 19.349
00:12:57.521 -28:42:47.48  AT 2026ymg  2026-08-09.53 18.729
-rw-r--r-- 1 apache apache 88K Sep  5 23:49 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sat Sep  5 23:49:04 CDT 2026
=======================================
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 8s (0.13 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 36s (0.60 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 16s (0.27 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: 4s (0.07 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 65s (1.08 min)
TIMING SExtractor: 6 seconds
TIMING matching_and_photometry: 11 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 16 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 44s (0.73 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 3s (0.05 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 41s (0.68 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 1s (0.02 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 1s (0.02 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 3s (0.05 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: 94s (1.57 min)
FIELD_Per-02-Q2b1x1: 189s (3.15 min)
=======================================
TOTAL_RUNTIME: 190s (3.17 min)
Finished: Sat Sep  5 23:52:14 CDT 2026