FITS images used in this processing run:

Field Per-01-Q2b1x1 reference image: Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Field Per-01-Q2b1x1 reference image: Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Field Per-01-Q2b1x1 second-epoch image: Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Field Per-01-Q2b1x1 second-epoch image: Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461082.60776087 11.02.2026 02:35:00.539   /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
First image: 2461082.60776087 11.02.2026 02:35:00.539   /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Last  image: 2461268.68730627 16.08.2026 04:29:33.262   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 4
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.64
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 12 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  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):  18818
Objects passed selection criteria:  18682
Measurements per detected object (mean, median, min, max):    2.2    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.2    2.0    2    4
Average stars detected per image: 11025.8
Average stars matched: 10129.5 (91.8713 %)
Memory usage VmPeak:   244648 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 00:05:50 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: 2461082.60776087 11.02.2026 02:35:00.539   /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
First image: 2461082.60776087 11.02.2026 02:35:00.539   /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Last  image: 2461268.68730627 16.08.2026 04:29:33.262   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 176
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.27
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: 67 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):  128334
Objects passed selection criteria:  127868
Measurements per detected object (mean, median, min, max):    2.2    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.2    2.0    2    4
Average stars detected per image: 86643.2
Average stars matched: 72407 (83.5691 %)
Memory usage VmPeak:   599584 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Fri Aug 14 19:27:11 CDT 2026
VaST build number  1.0rc89-191-g1c132b07
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sun Aug 16 00:08:43 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-01-Q2b1x1
#######################################
########### Starting Per-01-Q2b1x1 ###########
Processing Per-01-Q2b1x1
WARNING: server tau is low on disk space, only 81271 MB free at /data_ssd/NMW-TexasTech/workdir
WARNING: server tau is low on disk space, only 81271 MB free at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.png' -> 'transient_report/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits_preview.png'

Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits


renamed 'Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.png' -> 'transient_report/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits_preview.png'

Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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= 584.0244
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 838.7477
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1695.2336
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 456.5718
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1691.8267
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 458.3639
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 2.90268
INFO:                  SECOND_EPOCH__SD_ratio= 0.004
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.5799999237061 / [degC] Focuser temperature
AMBTEMP =                 28.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-15T23:28:37.9041941' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T04:28:37.9041941' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.1865498149 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T04:28:47.8089669' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61268.1866644444 / 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      =     42.3514182836066 / [deg] RA of telescope" status=0
Record 32: "DEC     =     53.9998374642196 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.0638888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     33.9880555555556 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.79521782420185 / 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-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '02 49 25'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+54 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  =                20472 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20472 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.5799999237061 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.5799999237061 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 39.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                904.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 28.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 43.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            14.801184 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.400752 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/d_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits :)

Spent 0.855689 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/d_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     28.7999992370605 / [degC] Focuser temperature
AMBTEMP =                 28.7 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-08-15T23:29:33.2620269' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-16T04:29:33.2620269' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61268.1871905322 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-16T04:29:43.1647327' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61268.1873051389 / 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      =     42.3514181772373 / [deg] RA of telescope" status=0
Record 32: "DEC     =     53.9998374438275 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.1727777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     34.0744444444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.76939341138762 / 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-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '02 49 25'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+54 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  =                20472 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20472 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     28.7999992370605 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     28.7999992370605 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.4 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 39.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                904.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 28.7 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 43.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=            14.801184 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             9.400752 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/d_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits :)

Spent 0.846424 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/d_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Previews of the CALIBRATED second-epoch images:


fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits



fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
  
SExtractor catalog cache: saved Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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: 2461268.68666556
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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits exists and is non-empty
wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits exists and is non-empty
wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Image size: 941.6'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: 02:49:17.265 +53:58:23.65 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-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits (1st new image)
verification OK: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Image size: 940.5'x624.7'  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: 02:49:26.312 +54:00:05.26 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:49:17.265 +53:58:23.65
Second-epoch image center 02:49:26.312 +54:00:05.26
Angular distance between the image centers 0.0359 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits (2nd new image)
verification OK: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Image size: 940.5'x624.7'  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: 02:49:30.063 +53:59:20.94 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:49:17.265 +53:58:23.65
Second-epoch image center 02:49:30.063 +53:59:20.94
Angular distance between the image centers 0.0352 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  02:49:26.312 +54:00:05.26
Second-epoch second image center 02:49:30.063 +53:59:20.94
Angular distance between the image centers 0.01536 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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits &> /tmp/tmp.QHn8KS2Oax
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits &> /tmp/tmp.gpstxH5DIa
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits &> /tmp/tmp.B1vfsE4ypJ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits &> /tmp/tmp.iDklequHwQ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits) and catalog (wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat) found
'wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 27390 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.8114 to 57.7181 deg, Dec +47.6643 to +59.3474 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 27.8114 to 57.7181 deg, Dec 47.6643 to 59.3474 deg
Loaded 17782 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): 11139 out of 12656 total matches.
Matched with Tycho-2 12656 out of 27390 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.933400
a=0.000000 b=1.000000 c=22.933400
From vast_summary.log: estimated ref. image limiting mag.:  -7.64
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.29

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.29

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 27390 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.8114 to 57.7181 deg, Dec +47.6643 to +59.3474 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 27.8114 to 57.7181 deg, Dec 47.6643 to 59.3474 deg
Loaded 17782 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): 11139 out of 12656 total matches.
Matched with Tycho-2 12656 out of 27390 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (aperture=6.1)
Read 27254 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.8111 to 57.7181 deg, Dec +47.6645 to +59.3563 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 27.8111 to 57.7181 deg, Dec 47.6645 to 59.3563 deg
Loaded 17798 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): 11127 out of 12638 total matches.
Matched with Tycho-2 12638 out of 27254 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits (aperture=6.1)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
cp: cannot create regular file 'local_wcs_cache/': Not a directory
Found 2 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.3 pix  Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
 2.3 pix  Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
 2.8 pix  fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
 2.8 pix  fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Limiting magnitude estimates:
 15.3 mag.  Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
 15.3 mag.  Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
 12.9 mag.  fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
 12.7 mag.  fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
All-image limiting magnitude estimate:  12.7 (SNR )  10.4 (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
############ /tmp/tmp.QHn8KS2Oax (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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits' -> 'wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Checking if the catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS catalog name: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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=3329, bad_region=9320, passed=27390
Got 27390 stars (including 15867 good ones) from the SExtractor catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 27390 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 688 to 748 (Dec 47.7 to 59.3)
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: 4913 matched stars entering correct_measured_positions(), 4913 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 20165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

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 688 to 748 (Dec 47.7 to 59.3)
Done reading UCAC5 zone files...
Matched 4939 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 20165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 20165 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 4913 stars left (next iteration limit 5404)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits N_match=4913 sigma_overall_arcsec=0.394 sigma_q1_arcsec=0.474 sigma_q2_arcsec=0.386 sigma_q3_arcsec=0.387 sigma_q4_arcsec=0.323 n_q1=1071 n_q2=1286 n_q3=1387 n_q4=1169 worst_quadrant_to_overall_ratio=1.202
The image catalog is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits -region wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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
############ /tmp/tmp.gpstxH5DIa (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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits 569.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits' -> 'wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Checking if the catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS catalog name: wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=3281, bad_region=9268, passed=27254
Got 27254 stars (including 15817 good ones) from the SExtractor catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 27254 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 688 to 748 (Dec 47.7 to 59.4)
Done reading UCAC5 zone files...
Matched 4941 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 4914 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 20065 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 688 to 748 (Dec 47.7 to 59.4)
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: 4913 matched stars entering correct_measured_positions(), 20065 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Accuracy estimation diagnostic: 4913 matched stars entering correct_measured_positions(), 20065 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4913 stars left (next iteration limit 5405)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits N_match=4913 sigma_overall_arcsec=0.414 sigma_q1_arcsec=0.516 sigma_q2_arcsec=0.403 sigma_q3_arcsec=0.398 sigma_q4_arcsec=0.358 n_q1=1065 n_q2=1285 n_q3=1386 n_q4=1177 worst_quadrant_to_overall_ratio=1.244
The image catalog is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits -region wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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
############ /tmp/tmp.B1vfsE4ypJ (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS_IMAGE_NAME=wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS-calibrated image found: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Checking if the catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS catalog name: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.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=313, bad_region=798, passed=4955
Got 4955 stars (including 3877 good ones) from the SExtractor catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat 
util/solve_plate_with_UCAC5 got 4955 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.5'
Seting catalog search parameters based on the expected field of view 940.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013063 (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 0.010450 (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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 3832 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3805 matched stars entering correct_measured_positions(), 3806 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3805 matched stars entering correct_measured_positions(), 4307 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.67" 

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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 3833 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3805 matched stars entering correct_measured_positions(), 4307 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.71" 
Accuracy estimation diagnostic: 3805 matched stars entering correct_measured_positions(), 4307 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.71" 
Excluding outliers - 3805 stars left (next iteration limit 4185)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3805 robust_rms=4.202 arcsec worst_quadrant_rms=20.763 arcsec
SIP_REFIT: SIP order 3 trial: matched=3805 robust_rms=0.769 arcsec worst_quadrant_rms=0.784 arcsec
SIP_REFIT: SIP order 5 trial: matched=3805 robust_rms=0.660 arcsec worst_quadrant_rms=0.730 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3805 robust_rms_before=1.375 arcsec robust_rms_before_corrected=0.708 arcsec robust_rms_after=0.660 arcsec worst_quadrant_rms_before=0.793 worst_quadrant_rms_after=0.730
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.793 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits N_match=3805 sigma_overall_arcsec=0.695 sigma_q1_arcsec=0.672 sigma_q2_arcsec=0.553 sigma_q3_arcsec=0.763 sigma_q4_arcsec=0.515 n_q1=856 n_q2=394 n_q3=2244 n_q4=311 worst_quadrant_to_overall_ratio=1.097
The image catalog is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits -region wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.iDklequHwQ (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS_IMAGE_NAME=wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS-calibrated image found: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Checking if the catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS catalog name: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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=314, bad_region=816, passed=4987
Got 4987 stars (including 3892 good ones) from the SExtractor catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat 
util/solve_plate_with_UCAC5 got 4987 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.5'
Seting catalog search parameters based on the expected field of view 940.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013063 (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 0.010450 (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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 3845 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3814 matched stars entering correct_measured_positions(), 3814 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3814 matched stars entering correct_measured_positions(), 4318 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 

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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 3846 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3814 matched stars entering correct_measured_positions(), 4318 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.71" 
Accuracy estimation diagnostic: 3814 matched stars entering correct_measured_positions(), 4318 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.72" 
Excluding outliers - 3814 stars left (next iteration limit 4195)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3814 robust_rms=4.330 arcsec worst_quadrant_rms=21.911 arcsec
SIP_REFIT: SIP order 3 trial: matched=3814 robust_rms=0.775 arcsec worst_quadrant_rms=0.791 arcsec
SIP_REFIT: SIP order 5 trial: matched=3814 robust_rms=0.664 arcsec worst_quadrant_rms=0.727 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3814 robust_rms_before=1.375 arcsec robust_rms_before_corrected=0.712 arcsec robust_rms_after=0.664 arcsec worst_quadrant_rms_before=0.799 worst_quadrant_rms_after=0.727
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.799 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits N_match=3814 sigma_overall_arcsec=0.725 sigma_q1_arcsec=0.744 sigma_q2_arcsec=0.538 sigma_q3_arcsec=0.779 sigma_q4_arcsec=0.595 n_q1=858 n_q2=370 n_q3=2279 n_q4=307 worst_quadrant_to_overall_ratio=1.075
The image catalog is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits -region wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Saving the final (post-refit) wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits to local_wcs_cache/
'wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits' -> 'local_wcs_cache/wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits'
Saving the final (post-refit) wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits to local_wcs_cache/
'wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits' -> 'local_wcs_cache/wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits'
Saving the final (post-refit) wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits to local_wcs_cache/
'wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits' -> 'local_wcs_cache/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits'
Saving the final (post-refit) wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits to local_wcs_cache/
'wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits' -> 'local_wcs_cache/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits sigma_overall=0.394 worst_q_ratio=1.202
ref2=Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits sigma_overall=0.414 worst_q_ratio=1.244
new1=fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits sigma_overall=0.695 worst_q_ratio=1.097
new2=fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits sigma_overall=0.725 worst_q_ratio=1.075
reference average sigma_overall=0.404 worst_q_ratio=1.223
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020_astrometric_residuals.png (4913 matched stars from wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021_astrometric_residuals.png (4913 matched stars from wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.37 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150_astrometric_residuals.png (3805 matched stars from wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.63 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151_astrometric_residuals.png (3814 matched stars from wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.64 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits'
Saving fully-calibrated image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits'
Preparing the HTML report for the field Per-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 0s
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: 2s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 08646_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 08646_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 3     2026 08 16.18731    2461268.68731    6.47    02:50:41.76 +55:53:39.8   4930 4342   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

**** FOUND  02:50:41.72 +55:53:39.9 in the exclusion list exclusion_list_bbsc.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 13939_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 13939_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 3     2026 08 16.18731    2461268.68731    6.37    03:04:47.33 +53:30:22.4   6150 2898   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

**** FOUND  03:04:47.30 +53:30:22.5 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-01-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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
  
SExtractor catalog cache: saved Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.cat to cache
SExtractor catalog cache: saved Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Creating symlink local_wcs_cache/wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Creating symlink local_wcs_cache/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Creating symlink local_wcs_cache/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits exists and is non-empty
wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits exists and is non-empty
wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits exists and is non-empty
wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (1st reference image)
verification OK: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Image size: 941.6'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: 02:49:17.265 +53:58:23.65 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-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits (1st new image)
verification OK: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Image size: 940.5'x624.7'  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: 02:49:26.312 +54:00:05.26 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:49:17.265 +53:58:23.65
Second-epoch image center 02:49:26.312 +54:00:05.26
Angular distance between the image centers 0.0359 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits (2nd new image)
verification OK: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Image size: 940.5'x624.7'  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: 02:49:30.063 +53:59:20.94 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:49:17.265 +53:58:23.65
Second-epoch image center 02:49:30.063 +53:59:20.94
Angular distance between the image centers 0.0352 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  02:49:26.312 +54:00:05.26
Second-epoch second image center 02:49:30.063 +53:59:20.94
Angular distance between the image centers 0.01536 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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits &> /tmp/tmp.N6YBpuPfin
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits &> /tmp/tmp.d3R7GkTopO
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits &> /tmp/tmp.L40lqf2w1A
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits &> /tmp/tmp.Eg1EB2SGUE
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Calibrating the magnitude scale
Found non-empty wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat 
Found non-empty wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits and wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat
The reference image (wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits) and catalog (wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat) found
'wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat' -> 'wcsmag.cat'
Read 187222 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.7726 to 57.7717 deg, Dec +47.6427 to +59.3506 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 27.7726 to 57.7717 deg, Dec 47.6427 to 59.3506 deg
Loaded 17878 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): 8547 out of 12924 total matches.
Matched with Tycho-2 12924 out of 187222 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.778200
a=0.000000 b=1.000000 c=22.778200
From vast_summary.log: estimated ref. image limiting mag.:  -7.27
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.51

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.51

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 187222 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.7726 to 57.7717 deg, Dec +47.6427 to +59.3506 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 27.7726 to 57.7717 deg, Dec 47.6427 to 59.3506 deg
Loaded 17878 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): 8547 out of 12924 total matches.
Matched with Tycho-2 12924 out of 187222 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Forced-photometry filter: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits -> calib.txt_param_ref_wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (aperture=4.5)
Read 187335 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 27.7678 to 57.7709 deg, Dec +47.6441 to +59.3602 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 27.7678 to 57.7709 deg, Dec 47.6441 to 59.3602 deg
Loaded 17904 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): 8510 out of 12918 total matches.
Matched with Tycho-2 12918 out of 187335 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Forced-photometry filter: calibrated wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits -> calib.txt_param_ref_wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits (aperture=4.5)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 5 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
 2.1 pix  Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
 2.4 pix  fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
 2.4 pix  fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Limiting magnitude estimates:
 15.5 mag.  Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
 15.5 mag.  Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
 12.8 mag.  fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
 13.3 mag.  fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
All-image limiting magnitude estimate:  12.8 (SNR )  12.6 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.N6YBpuPfin (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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits' -> 'wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS_IMAGE_NAME=wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS-calibrated image found: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
Checking if the catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits alredy exist and is non-empty...
Catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits
WCS catalog name: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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=33, blended=26988, bad_region=48123, passed=187189
Got 187189 stars (including 119613 good ones) from the SExtractor catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat 
util/solve_plate_with_UCAC5 got 187189 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 688 to 748 (Dec 47.6 to 59.4)
Done reading UCAC5 zone files...
Matched 4939 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4928 matched stars entering correct_measured_positions(), 4928 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4928 matched stars entering correct_measured_positions(), 150206 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 688 to 748 (Dec 47.6 to 59.4)
Done reading UCAC5 zone files...
Matched 4939 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4928 matched stars entering correct_measured_positions(), 150206 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4928 matched stars entering correct_measured_positions(), 150206 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Excluding outliers - 4928 stars left (next iteration limit 5420)
Stop iterations.


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

SIP_REFIT: wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits N_match=4928 sigma_overall_arcsec=0.378 sigma_q1_arcsec=0.458 sigma_q2_arcsec=0.378 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.309 n_q1=1136 n_q2=1222 n_q3=1459 n_q4=1111 worst_quadrant_to_overall_ratio=1.213
The image catalog is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits -region wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_LIGHT_0020.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-00_20.00sec_-14.90C_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
############ /tmp/tmp.d3R7GkTopO (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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits 569.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits' -> 'wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS_IMAGE_NAME=wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS-calibrated image found: wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
Checking if the catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits alredy exist and is non-empty...
Catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat corresponding to the image wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits
WCS catalog name: wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=39, blended=26917, bad_region=48179, passed=187296
Got 187296 stars (including 119736 good ones) from the SExtractor catalog wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat 
util/solve_plate_with_UCAC5 got 187296 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.6'
Seting catalog search parameters based on the expected field of view 941.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013078 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010462 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 688 to 748 (Dec 47.6 to 59.4)
Done reading UCAC5 zone files...
Matched 4937 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4927 matched stars entering correct_measured_positions(), 4927 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4927 matched stars entering correct_measured_positions(), 150287 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 688 to 748 (Dec 47.6 to 59.4)
Done reading UCAC5 zone files...
Matched 4937 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4926 matched stars entering correct_measured_positions(), 150287 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Accuracy estimation diagnostic: 4926 matched stars entering correct_measured_positions(), 150287 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.39" 
Excluding outliers - 4926 stars left (next iteration limit 5419)
Stop iterations.


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

SIP_REFIT: wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits N_match=4926 sigma_overall_arcsec=0.399 sigma_q1_arcsec=0.491 sigma_q2_arcsec=0.410 sigma_q3_arcsec=0.382 sigma_q4_arcsec=0.327 n_q1=1149 n_q2=1225 n_q3=1449 n_q4=1103 worst_quadrant_to_overall_ratio=1.231
The image catalog is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits -region wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_LIGHT_0021.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Per-01-Q2b1x1_2026-02-10_20-35-43_20.00sec_-14.90C_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
############ /tmp/tmp.L40lqf2w1A (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS_IMAGE_NAME=wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS-calibrated image found: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Checking if the catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
WCS catalog name: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.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=13, blended=2421, bad_region=5688, passed=40868
Got 40868 stars (including 32862 good ones) from the SExtractor catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat 
util/solve_plate_with_UCAC5 got 40868 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.5'
Seting catalog search parameters based on the expected field of view 940.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013063 (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 0.010450 (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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 4949 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 4916 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.66" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4915 matched stars entering correct_measured_positions(), 36399 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 

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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 4951 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 36399 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Accuracy estimation diagnostic: 4914 matched stars entering correct_measured_positions(), 36400 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.65" 
Excluding outliers - 4914 stars left (next iteration limit 5406)
Stop iterations.


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

SIP_REFIT: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.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=4914 robust_rms=4.723 arcsec worst_quadrant_rms=19.177 arcsec
SIP_REFIT: SIP order 3 trial: matched=4914 robust_rms=0.785 arcsec worst_quadrant_rms=0.818 arcsec
SIP_REFIT: SIP order 5 trial: matched=4914 robust_rms=0.663 arcsec worst_quadrant_rms=0.751 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4914 robust_rms_before=1.444 arcsec robust_rms_before_corrected=0.703 arcsec robust_rms_after=0.663 arcsec worst_quadrant_rms_before=0.823 worst_quadrant_rms_after=0.751
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.823 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits N_match=4914 sigma_overall_arcsec=0.697 sigma_q1_arcsec=0.693 sigma_q2_arcsec=0.524 sigma_q3_arcsec=0.804 sigma_q4_arcsec=0.526 n_q1=1224 n_q2=590 n_q3=2674 n_q4=426 worst_quadrant_to_overall_ratio=1.154
The image catalog is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits -region wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
############ /tmp/tmp.Eg1EB2SGUE (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS_IMAGE_NAME=wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS-calibrated image found: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Checking if the catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits alredy exist and is non-empty...
Catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat corresponding to the image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
WCS catalog name: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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=8, blended=2376, bad_region=5716, passed=41087
Got 41087 stars (including 33076 good ones) from the SExtractor catalog wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat 
util/solve_plate_with_UCAC5 got 41087 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.5'
Seting catalog search parameters based on the expected field of view 940.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013063 (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 0.010450 (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 689 to 748 (Dec 48.0 to 59.3)
Done reading UCAC5 zone files...
Matched 4938 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 4905 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.66" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4903 matched stars entering correct_measured_positions(), 36556 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.61" 

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 689 to 748 (Dec 48.0 to 59.3)
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: 4901 matched stars entering correct_measured_positions(), 36556 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Accuracy estimation diagnostic: 4901 matched stars entering correct_measured_positions(), 36556 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.65" 
Excluding outliers - 4901 stars left (next iteration limit 5393)
Stop iterations.


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

SIP_REFIT: wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.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=4901 robust_rms=4.906 arcsec worst_quadrant_rms=21.647 arcsec
SIP_REFIT: SIP order 3 trial: matched=4901 robust_rms=0.791 arcsec worst_quadrant_rms=0.815 arcsec
SIP_REFIT: SIP order 5 trial: matched=4901 robust_rms=0.652 arcsec worst_quadrant_rms=0.734 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4901 robust_rms_before=1.433 arcsec robust_rms_before_corrected=0.701 arcsec robust_rms_after=0.652 arcsec worst_quadrant_rms_before=0.810 worst_quadrant_rms_after=0.734
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.810 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits N_match=4901 sigma_overall_arcsec=0.700 sigma_q1_arcsec=0.695 sigma_q2_arcsec=0.522 sigma_q3_arcsec=0.793 sigma_q4_arcsec=0.531 n_q1=1225 n_q2=574 n_q3=2672 n_q4=430 worst_quadrant_to_overall_ratio=1.132
The image catalog is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits -region wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-28-37_20.00sec_-0.00C_LIGHT_0150.fits
Saving fully-calibrated image wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/wcs_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits
Preparing the HTML report for the field Per-01-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: 0s
  
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Considering the candidate 210020_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 210020_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 2     2026 08 16.18731    2461268.68731    13.11    03:14:32.67 +52:41:04.3   7053 2436   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

Rejecting candidate due to large distance (119.3") between the two second-epoch detections
  
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Considering the candidate 224579_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 224579_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 2     2026 08 16.18731    2461268.68731    12.48    02:21:42.62 +57:51:44.1   2638 5726   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

Rejecting candidate due to large distance (159.5") between the two second-epoch detections
  
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Considering the candidate 227629_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 227629_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 2     2026 08 16.18731    2461268.68731    12.49    02:22:07.27 +56:36:12.9   2572 4962   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

Rejecting candidate due to large distance (179.8") between the two second-epoch detections
  
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Considering the candidate 81787_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 81787_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 3     2026 08 16.18731    2461268.68731    12.53    02:21:13.29 +54:30:36.0   2328 3714   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

Rejecting candidate due to large distance (114.9") between the two second-epoch detections
  
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Considering the candidate 54033_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151
The candidate 54033_fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151 did not pass the final checks
Discovery image 2     2026 08 16.18731    2461268.68731    12.64    02:25:58.02 +56:06:09.9   2855 4620   /data_ssd/NMW-TexasTech/workdir//img_2026-08-16_CI_Per-01-Q2b1x1_000038_TTUQ2b1x1_434459_Fpvckvcw/fd_Per-01-Q2b1x1_2026-08-15_23-29-33_20.00sec_-0.00C_LIGHT_0151.fits

Rejecting candidate due to large distance (167.5") between the two second-epoch detections
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Per-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Per-01-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)2461268.68666556 -observatory V36
08:55:42.31 +18:32:07.4 Mercury (-1.4mag)
12:30:06.91 -04:53:28.6 Venus (-4.4mag)
06:12:17.45 +23:42:28.4 Mars (1.3mag)
08:50:03.98 +18:14:19.4 Jupiter (-1.8mag)
00:55:39.79 +03:08:25.7 Saturn (0.6mag)
04:12:32.93 +20:59:03.9 Uranus (5.7mag)
00:15:35.48 +00:09:29.6 Neptune (7.7mag)
20:27:23.66 -23:33:07.2 Pluto (14.5mag)
12:19:07.19 -06:26:48.8 Moon (-9.2mag)
-rw-r--r-- 1 apache apache 362 Aug 16 00:05 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461268.68666556:
08:50:03.67 +18:14:22.5 Io (6.1mag)
08:50:12.17 +18:13:43.0 Europa (6.3mag)
08:50:18.85 +18:13:11.4 Ganymede (5.6mag)
08:50:06.19 +18:14:07.4 Callisto (6.8mag)
08:47:32.31 +18:18:35.0 Himalia (15.7mag)
08:50:05.68 +18:14:13.0 Thebe (16.6mag)
08:47:09.04 +18:15:33.8 Elara (17.7mag)
08:54:12.72 +17:50:10.5 Pasiphae (17.9mag)
08:52:42.67 +18:26:24.2 Carme (19.0mag)
00:55:49.78 +03:07:57.2 Titan (8.4mag)
00:55:35.91 +03:08:12.1 Rhea (9.7mag)
00:56:08.19 +03:08:52.6 Iapetus (11.1mag)
00:55:52.16 +03:07:49.2 Hyperion (14.4mag)
00:54:52.13 +03:00:35.5 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 16 00:06 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461268.68666556:
19:38:49.98 -18:29:43.6 JWST
15:26:09.50 +53:28:02.4 Chandra
09:21:53.57 -52:46:08.7 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 16 00:05 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461268.68666556 -observatory V36
03:22:16.89 +18:00:29.5 17.6mag P/1996 R2 (Lagerkvist)
18:00:11.61 -34:33:24.3 14.1mag P/2010 H2 (Vales)
07:01:04.36 -69:12:59.0 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:11:48.28 +33:09:58.8 17.7mag C/2017 K2 (PANSTARRS)
04:05:56.52 +40:39:55.3 17.2mag P/2021 N1 (ZTF)
22:31:58.47 +30:54:02.5 17.3mag C/2022 E2 (ATLAS)
06:51:13.59 +26:23:56.7 16.8mag C/2022 N2 (PANSTARRS)
10:28:57.65 +28:06:58.8 17.0mag C/2022 QE78 (ATLAS)
09:34:11.81 +05:18:33.6 17.9mag C/2022 R6 (PANSTARRS)
15:14:03.32 -12:36:32.5 17.9mag P/2023 B1 (PANSTARRS)
21:00:34.36 +65:00:49.7 17.9mag C/2023 H5 (Lemmon)
15:40:45.28 -13:40:23.3 14.5mag C/2023 R1 (PANSTARRS)
08:16:49.76 +31:42:45.9 15.4mag C/2024 E1 (Wierzchos)
15:05:59.67 +15:33:42.2 17.8mag C/2024 G6 (ATLAS)
18:53:31.45 +43:24:37.9 13.7mag C/2024 J3 (ATLAS)
20:58:46.92 +49:34:40.0 17.5mag C/2024 R4 (PANSTARRS)
05:21:19.14 -12:54:18.5 15.4mag C/2024 T5 (ATLAS)
07:01:10.57 +22:44:12.8 17.9mag C/2025 J1 (Borisov)
10:44:11.41 +20:23:08.8 17.2mag C/2025 V2 (Rankin)
13:03:09.07 +01:48:12.0 16.9mag C/2025 Y1 (ATLAS)
16:04:43.99 +77:00:51.5 16.6mag C/2026 A2 (Bok)
03:09:33.97 +46:18:40.9 17.2mag C/2026 B2 (Sun-Gao)
11:53:29.05 +09:21:19.9 17.4mag A/2026 E1
22:06:38.67 -30:22:31.9 7.0mag 10P/Tempel
11:33:49.33 -03:54:19.9 16.3mag 29P/Schwassmann-Wachmann
11:23:54.05 +02:02:06.4 17.3mag 63P/Wild
00:53:12.50 -05:47:06.9 15.4mag 65P/Gunn
05:53:23.17 +20:29:44.7 13.7mag 78P/Gehrels
20:30:52.40 -24:24:09.7 17.6mag 84P/Giclas
03:07:47.83 +14:13:12.2 16.8mag 88P/Howell
08:15:48.19 +26:31:49.3 16.3mag 93P/Lovas
04:29:09.17 +19:58:58.2 17.4mag 112P/Urata-Niijima
06:22:39.33 +29:18:32.2 16.2mag 114P/Wiseman-Skiff
09:37:17.10 +25:15:02.0 14.9mag 123P/West-Hartley
11:59:47.42 -13:18:04.9 17.2mag 124P/Mrkos
05:48:07.57 +21:07:12.5 16.0mag 128P/Shoemaker-Holt
06:41:56.04 +18:28:45.1 17.9mag 131P/Mueller
00:01:38.36 +03:16:43.0 17.5mag 139P/Vaisala-Oterma
03:15:55.17 -18:51:42.9 13.3mag 161P/Hartley-IRAS
07:43:18.40 +38:05:15.3 16.0mag 162P/Siding Spring
12:32:55.75 +38:18:12.6 12.0mag 169P/NEAT
02:56:47.84 +09:31:53.3 17.6mag 220P/McNaught
16:46:17.85 -10:40:42.3 17.9mag 235P/LINEAR
20:18:03.60 -52:27:21.9 17.9mag 259P/Garradd
03:45:21.96 +28:26:37.3 15.3mag 260P/McNaught
07:29:13.38 +37:26:26.8 17.3mag 295P/LINEAR
15:13:24.20 +02:15:07.3 17.8mag 391P/Kowalski
09:08:08.46 +17:58:50.7 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.3K Aug 16 00:05 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.67 +32:04:22.70  AT2026ovz  2026-06-14.6 15.52
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
17:50:22.87 -39:42:33.90  ASASSN-26dj  2026-05-17.05 15.7
01:13:11.60 -33:25:16.10  ASASSN-26dg  2026-05-13.41 16.8
16:44:31.77 -27:15:18.40  AT2026mhn  2026-05-12.33 15.8
09:46:31.08 -33:41:51.00  ASASSN-26di  2026-05-12.14 14.63
21:23:11.57 -19:09:45.00  AT2026kwu  2026-05-12.26 16.9
14:20:14.30 -30:20:51.90  AT2026ktm  2026-05-12.06 17.21
14:41:39.01 -37:13:46.40  AT2026lkm  2026-05-11.18 16.89
12:59:50.45 -10:58:38.80  SN2026kep  2026-05-9.06 17.5
13:37:29.61 -29:50:30.90  AT2026lkd  2026-05-9.09 17.23
09:46:42.01 -14:52:03.60  SN2026kmo  2026-05-8.99 17.51
15:03:05.28 +22:02:03.40  AT2026lxf  2026-05-8.07 13.88
10:23:49.41 -20:57:25.30  ASASSN-26df  2026-05-8.21 16.52
22:14:40.56 +05:04:51.60  2026lda  2026-05-7.56 16.2
21:35:33.81 -14:05:16.30  ASASSN-26de  2026-05-6.29 14.51
16:21:49.13 -61:36:14.60  ASASSN-26dd  2026-05-5.15 15.93
-rw-r--r-- 1 apache apache 5.7K Aug 16 00:05 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:42:38.68 +41:15:58.2  PNV J00423868+4115582  2026-06-05.1224  19.97Umag
19:00:42.95 -48:31:01.7  PNV J19004295-4831017  2026-05-25.0752  14.2mag
09:55:21.28 +69:02:52.6  PNV J09552128+6902526  2026-06-13.933  18.9mag
19:51:21.42 +37:06:40.0  TCP J19512142+3706400  2026-06-17.2942  16.8mag
19:57:03.87 +37:41:46.4  TCP J19570387+3741464  2026-06-18.2638  17.5mag
00:42:32.04 +41:10:28.3  PNV J00423204+4110283  2026-06-26.059  16.6mag
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
-rw-r--r-- 1 apache apache 190K Aug 16 00:05 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
16:06:39.962 -00:03:48.96  AT 2026wup  2026-07-08.37 20.6
23:36:31.132 -01:42:30.56  AT 2026wuo  2026-07-25.58 21.53
14:58:54.953 +20:56:59.36  AT 2026wun  2026-06-12.38 21.33
13:29:54.424 -08:02:17.84  AT 2026wum  2026-05-12.34 21.76
15:31:56.171 -23:07:56.50  AT 2026wul  2026-07-16.29 21.12
15:50:35.869 +16:13:29.04  AT 2026wuk  2026-06-08.46 20.66
14:46:52.387 +23:41:33.95  AT 2026wuj  2026-07-19.29 20.84
02:33:14.312 +23:53:11.23  AT 2026wui  2026-07-25.60 21.47
23:59:19.033 +30:37:28.65  AT 2026wuh  2026-07-23.54 21.33
16:12:22.633 +29:40:38.32  AT 2026wug  2026-05-17.56 21.06
22:44:11.171 +19:47:25.41  AT 2026wuf  2026-06-22.52 21.62
18:17:56.544 +19:41:21.89  SN 2026wue  2026-08-02.91 19.16
21:01:30.094 -22:58:14.18  AT 2026wud  2026-08-02.45 20.19
17:15:36.662 +19:40:23.08  AT 2026wuc  2026-08-02.89 19.57
21:28:21.020 -26:47:22.51  AT 2026wub  2026-08-01.60 19.12
22:35:35.158 -48:27:31.72  AT 2026wua  2026-07-27.55 19.31
13:33:02.514 +37:11:45.73  AT 2026wtz  2026-08-02.28 17.867
23:09:39.462 -49:07:04.71  AT 2026wty  2026-07-20.06 19.281
14:29:17.771 +16:10:51.48  AT 2026wtx  2026-07-31.26 18.842
01:29:50.326 -68:28:41.35  AT 2026wtw  2026-07-20.16 18.685
-rw-r--r-- 1 apache apache 87K Aug 16 00:05 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sun Aug 16 00:05:08 CDT 2026
=======================================
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 7 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 12s (0.20 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 51s (0.85 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 26s (0.43 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: 2s (0.03 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 8s (0.13 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 106s (1.77 min)
TIMING SExtractor: 29 seconds
TIMING matching_and_photometry: 14 seconds
TIMING lightcurve_write: 2 seconds
TIMING select_aperture: 11 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 79s (1.32 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 3s (0.05 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 47s (0.78 min)
    MAGCAL_SANITY_CHECK: 1s (0.02 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 2s (0.03 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 2s (0.03 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: 1s (0.02 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 137s (2.28 min)
FIELD_Per-01-Q2b1x1: 270s (4.50 min)
=======================================
TOTAL_RUNTIME: 273s (4.55 min)
Finished: Sun Aug 16 00:09:41 CDT 2026