FITS images used in this processing run:

Field Lyn-02-Q2b1x1 reference image: Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Field Lyn-02-Q2b1x1 reference image: Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Field Lyn-02-Q2b1x1 second-epoch image: Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Field Lyn-02-Q2b1x1 second-epoch image: Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461093.73517407 22.02.2026 05:38:29.040   /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
First image: 2461093.73517407 22.02.2026 05:38:29.040   /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Last  image: 2461281.88655667 29.08.2026 09:16:28.496   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.46
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  7281
Objects passed selection criteria:  7263
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: 4334.5
Average stars matched: 4070.75 (93.9151 %)
Memory usage VmPeak:   234460 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Aug 29 04:45:00 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: 2461093.73517407 22.02.2026 05:38:29.040   /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
First image: 2461093.73517407 22.02.2026 05:38:29.040   /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Last  image: 2461281.88655667 29.08.2026 09:16:28.496   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 2
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.15
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 7 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  40557
Objects passed selection criteria:  40438
Measurements per detected object (mean, median, min, max):    2.3    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.3    2.0    2    4
Average stars detected per image: 25916
Average stars matched: 24402.5 (94.16 %)
Memory usage VmPeak:   267520 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Sat Aug 29 04:45:56 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: 
Lyn-02-Q2b1x1
#######################################
########### Starting Lyn-02-Q2b1x1 ###########
Processing Lyn-02-Q2b1x1
server tau has sufficient free disk space available: 694659 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 694659 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.png' -> 'transient_report/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits_preview.png'

Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits


renamed 'Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.png' -> 'transient_report/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits_preview.png'

Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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= 448.8005
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 561.5627
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 7008.1576
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1832.8740
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 6867.9607
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1797.3169
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 15.6153
INFO:                  SECOND_EPOCH__SD_ratio= 0.020
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 =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 25.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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= '2026-08-29T04:15:33.9519504' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-29T09:15:33.9519504' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =      61281.385809618 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-29T09:15:43.8555030' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61281.3859242476 / 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      =     127.057019381204 / [deg] RA of telescope" status=0
Record 32: "DEC     =      53.999752339213 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     14.9530555555556 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     34.1583333333333 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.82187778077549 / 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  = 'Lyn-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '08 28 14'           / [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  =                20473 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20473 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 15.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 53.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 35.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             8.600688 / [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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/d_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits :)

Spent 0.484585 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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/d_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 25.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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= '2026-08-29T04:16:28.4965157' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-08-29T09:16:28.4965157' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61281.3864409258 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-08-29T09:16:38.3975638' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61281.3865555208 / 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      =     127.057019326497 / [deg] RA of telescope" status=0
Record 32: "DEC     =      53.999752371562 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     15.0586111111111 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     34.2419444444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.79647871982949 / 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  = 'Lyn-02'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '08 28 14'           / [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  =                20473 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20473 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 15.1 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 53.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               903.59 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 25.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 35.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             13.00104 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             8.600688 / [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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/d_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits :)

Spent 0.477289 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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/d_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Previews of the CALIBRATED second-epoch images:


fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits



fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
  
SExtractor catalog cache: saved Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.cat to cache
SExtractor catalog cache: saved Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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: 2461281.88592536
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
'asassn_transients_list.txt' -> '../asassn_transients_list.txt'
wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits exists and is non-empty
wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits exists and is non-empty
wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits exists and is non-empty
wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (1st reference image)
verification OK: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Image size: 941.7'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 08:28:14.476 +53:59:34.34 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_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits (1st new image)
verification OK: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Image size: 940.6'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: 08:27:57.205 +54:01:19.85 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 08:28:14.476 +53:59:34.34
Second-epoch image center 08:27:57.205 +54:01:19.85
Angular distance between the image centers 0.0515 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits (2nd new image)
verification OK: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Image size: 940.6'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: 08:27:55.402 +54:01:58.18 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 08:28:14.476 +53:59:34.34
Second-epoch image center 08:27:55.402 +54:01:58.18
Angular distance between the image centers 0.0615 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  08:27:57.205 +54:01:19.85
Second-epoch second image center 08:27:55.402 +54:01:58.18
Angular distance between the image centers 0.01153 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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits &> /tmp/tmp.uBafUvDp89
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits &> /tmp/tmp.n9rfBzWj3t
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits &> /tmp/tmp.bH3ViQFi0w
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits &> /tmp/tmp.Cr1oGhEbpi
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Calibrating the magnitude scale
Found non-empty wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat 
Found non-empty wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat
The reference image (wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits) and catalog (wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat) found
'wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat' -> 'wcsmag.cat'
Read 10801 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.5580 to 142.4293 deg, Dec +47.7403 to +59.3587 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 112.5580 to 142.4293 deg, Dec 47.7403 to 59.3587 deg
Loaded 7436 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): 4969 out of 5303 total matches.
Matched with Tycho-2 5303 out of 10801 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.918300
a=0.000000 b=1.000000 c=22.918300
From vast_summary.log: estimated ref. image limiting mag.:  -7.46
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.46

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.46

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 10801 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.5580 to 142.4293 deg, Dec +47.7403 to +59.3587 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 112.5580 to 142.4293 deg, Dec 47.7403 to 59.3587 deg
Loaded 7436 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): 4969 out of 5303 total matches.
Matched with Tycho-2 5303 out of 10801 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Forced-photometry filter: calibrated wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits -> calib.txt_param_ref_wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (aperture=6.3)
Read 10687 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.1642 to 141.8836 deg, Dec +48.1852 to +59.2550 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 112.1642 to 141.8836 deg, Dec 48.1852 to 59.2550 deg
Loaded 7097 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): 5064 out of 5265 total matches.
Matched with Tycho-2 5265 out of 10687 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Forced-photometry filter: calibrated wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits -> calib.txt_param_ref_wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits (aperture=6.5)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 0 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.2 pix  Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
 2.4 pix  Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
 2.4 pix  fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
 2.4 pix  fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Limiting magnitude estimates:
 15.5 mag.  Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
 15.4 mag.  Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
 12.4 mag.  fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
 12.4 mag.  fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
All-image limiting magnitude estimate:  12.4 (SNR )  10.0 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.uBafUvDp89 (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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits 569.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits' -> 'wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS_IMAGE_NAME=wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS-calibrated image found: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Checking if the catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits alredy exist and is non-empty...
Catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS catalog name: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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=806, bad_region=3064, passed=10801
Got 10801 stars (including 7153 good ones) from the SExtractor catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat 
util/solve_plate_with_UCAC5 got 10801 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (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 0.010463 (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 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 4909 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 8328 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

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 4918 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 8328 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 8328 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4909 stars left (next iteration limit 5399)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits N_match=4909 sigma_overall_arcsec=0.412 sigma_q1_arcsec=0.480 sigma_q2_arcsec=0.396 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.388 n_q1=1446 n_q2=987 n_q3=1475 n_q4=1001 worst_quadrant_to_overall_ratio=1.165
The image catalog is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits -region wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.n9rfBzWj3t (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits' -> 'wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS_IMAGE_NAME=wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS-calibrated image found: wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Checking if the catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits alredy exist and is non-empty...
Catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS catalog name: wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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=636, bad_region=2967, passed=10687
Got 10687 stars (including 7264 good ones) from the SExtractor catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat 
util/solve_plate_with_UCAC5 got 10687 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 690 to 748 (Dec 48.2 to 59.3)
Done reading UCAC5 zone files...
Matched 4919 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4910 matched stars entering correct_measured_positions(), 4910 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4910 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 690 to 748 (Dec 48.2 to 59.3)
Done reading UCAC5 zone files...
Matched 4919 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4910 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Accuracy estimation diagnostic: 4910 matched stars entering correct_measured_positions(), 8306 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Excluding outliers - 4910 stars left (next iteration limit 5401)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits N_match=4910 sigma_overall_arcsec=0.295 sigma_q1_arcsec=0.263 sigma_q2_arcsec=0.322 sigma_q3_arcsec=0.331 sigma_q4_arcsec=0.279 n_q1=1512 n_q2=1041 n_q3=1387 n_q4=970 worst_quadrant_to_overall_ratio=1.123
The image catalog is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits -region wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.bH3ViQFi0w (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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS_IMAGE_NAME=wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS-calibrated image found: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Checking if the catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits alredy exist and is non-empty...
Catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS catalog name: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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=127, bad_region=223, passed=1168
Got 1168 stars (including 844 good ones) from the SExtractor catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat 
util/solve_plate_with_UCAC5 got 1168 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.6'
Seting catalog search parameters based on the expected field of view 940.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013064 (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 0.010451 (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 690 to 748 (Dec 48.1 to 59.3)
Done reading UCAC5 zone files...
Matched 823 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 823 matched stars entering correct_measured_positions(), 816 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.62" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 823 matched stars entering correct_measured_positions(), 960 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 690 to 748 (Dec 48.1 to 59.3)
Done reading UCAC5 zone files...
Matched 823 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 822 matched stars entering correct_measured_positions(), 961 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.59" 
Accuracy estimation diagnostic: 822 matched stars entering correct_measured_positions(), 961 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.60" 
Excluding outliers - 822 stars left (next iteration limit 905)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=822 robust_rms=6.162 arcsec worst_quadrant_rms=8.404 arcsec
SIP_REFIT: SIP order 3 trial: matched=822 robust_rms=0.739 arcsec worst_quadrant_rms=0.941 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=822 robust_rms_before=1.750 arcsec robust_rms_before_corrected=0.605 arcsec robust_rms_after=0.739 arcsec worst_quadrant_rms_before=0.797 worst_quadrant_rms_after=0.941
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.797 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits N_match=822 sigma_overall_arcsec=0.602 sigma_q1_arcsec=0.618 sigma_q2_arcsec=0.593 sigma_q3_arcsec=0.773 sigma_q4_arcsec=0.490 n_q1=290 n_q2=144 n_q3=226 n_q4=162 worst_quadrant_to_overall_ratio=1.286
The image catalog is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits -region wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.Cr1oGhEbpi (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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS_IMAGE_NAME=wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS-calibrated image found: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Checking if the catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits alredy exist and is non-empty...
Catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS catalog name: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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=135, bad_region=225, passed=1246
Got 1246 stars (including 913 good ones) from the SExtractor catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat 
util/solve_plate_with_UCAC5 got 1246 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.6'
Seting catalog search parameters based on the expected field of view 940.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013064 (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 0.010451 (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 690 to 748 (Dec 48.1 to 59.3)
Done reading UCAC5 zone files...
Matched 892 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 891 matched stars entering correct_measured_positions(), 880 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 891 matched stars entering correct_measured_positions(), 1023 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 

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 690 to 748 (Dec 48.1 to 59.3)
Done reading UCAC5 zone files...
Matched 892 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 891 matched stars entering correct_measured_positions(), 1023 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Accuracy estimation diagnostic: 891 matched stars entering correct_measured_positions(), 1023 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.57" 
Excluding outliers - 891 stars left (next iteration limit 980)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=891 robust_rms=6.161 arcsec worst_quadrant_rms=7.640 arcsec
SIP_REFIT: SIP order 3 trial: matched=891 robust_rms=0.778 arcsec worst_quadrant_rms=0.851 arcsec
SIP_REFIT: selected SIP order 3
SIP_REFIT: order=3 matched=891 robust_rms_before=1.746 arcsec robust_rms_before_corrected=0.589 arcsec robust_rms_after=0.778 arcsec worst_quadrant_rms_before=0.682 worst_quadrant_rms_after=0.851
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.682 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits N_match=891 sigma_overall_arcsec=0.626 sigma_q1_arcsec=0.588 sigma_q2_arcsec=0.629 sigma_q3_arcsec=0.723 sigma_q4_arcsec=0.507 n_q1=303 n_q2=141 n_q3=285 n_q4=162 worst_quadrant_to_overall_ratio=1.154
The image catalog is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits -region wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Saving the final (post-refit) wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits to local_wcs_cache/
'wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits' -> 'local_wcs_cache/wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits'
Saving the final (post-refit) wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits to local_wcs_cache/
'wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits' -> 'local_wcs_cache/wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits'
Saving the final (post-refit) wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits to local_wcs_cache/
'wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits' -> 'local_wcs_cache/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits'
Saving the final (post-refit) wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits to local_wcs_cache/
'wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits' -> 'local_wcs_cache/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits sigma_overall=0.412 worst_q_ratio=1.165
ref2=Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits sigma_overall=0.295 worst_q_ratio=1.123
new1=fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits sigma_overall=0.602 worst_q_ratio=1.286
new2=fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits sigma_overall=0.626 worst_q_ratio=1.154
reference average sigma_overall=0.3535 worst_q_ratio=1.144
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227_astrometric_residuals.png (4909 matched stars from wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.36 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207_astrometric_residuals.png (4910 matched stars from wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.27 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444_astrometric_residuals.png (822 matched stars from wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.57 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445_astrometric_residuals.png (891 matched stars from wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.57 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits'
Saving fully-calibrated image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits'
Preparing the HTML report for the field Lyn-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
No candidates found here
Prepared the HTML report for the field Lyn-02-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
  
SExtractor catalog cache: saved Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.cat to cache
SExtractor catalog cache: saved Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Creating symlink local_wcs_cache/wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Creating symlink local_wcs_cache/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Creating symlink local_wcs_cache/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits exists and is non-empty
wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits exists and is non-empty
wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits exists and is non-empty
wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (1st reference image)
verification OK: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Image size: 941.7'x627.2'  15.7(deg)x10.5(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 08:28:14.476 +53:59:34.34 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_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits (1st new image)
verification OK: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Image size: 940.6'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: 08:27:57.205 +54:01:19.85 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 08:28:14.476 +53:59:34.34
Second-epoch image center 08:27:57.205 +54:01:19.85
Angular distance between the image centers 0.0515 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits (2nd new image)
verification OK: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Image size: 940.6'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: 08:27:55.402 +54:01:58.18 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 08:28:14.476 +53:59:34.34
Second-epoch image center 08:27:55.402 +54:01:58.18
Angular distance between the image centers 0.0615 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  08:27:57.205 +54:01:19.85
Second-epoch second image center 08:27:55.402 +54:01:58.18
Angular distance between the image centers 0.01153 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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits &> /tmp/tmp.IJTbI3qnfn
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits &> /tmp/tmp.TlAf9hHLrs
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits &> /tmp/tmp.sHdh4Y12rA
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits &> /tmp/tmp.2p3JLLmkfr
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Calibrating the magnitude scale
Found non-empty wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat 
Found non-empty wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits and wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat
The reference image (wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits) and catalog (wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat) found
'wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat' -> 'wcsmag.cat'
Read 61028 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.4754 to 142.5291 deg, Dec +47.6709 to +59.3677 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 112.4754 to 142.5291 deg, Dec 47.6709 to 59.3677 deg
Loaded 7536 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): 4569 out of 5332 total matches.
Matched with Tycho-2 5332 out of 61028 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.802900
a=0.000000 b=1.000000 c=22.802900
From vast_summary.log: estimated ref. image limiting mag.:  -7.15
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.65

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.65

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 61028 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.4754 to 142.5291 deg, Dec +47.6709 to +59.3677 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 112.4754 to 142.5291 deg, Dec 47.6709 to 59.3677 deg
Loaded 7536 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): 4569 out of 5332 total matches.
Matched with Tycho-2 5332 out of 61028 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Forced-photometry filter: calibrated wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits -> calib.txt_param_ref_wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (aperture=4.9)
Read 55363 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 112.0150 to 141.9992 deg, Dec +48.1757 to +59.2641 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 112.0150 to 141.9992 deg, Dec 48.1757 to 59.2641 deg
Loaded 7173 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): 4709 out of 5293 total matches.
Matched with Tycho-2 5293 out of 55363 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Forced-photometry filter: calibrated wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits -> calib.txt_param_ref_wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits (aperture=5.1)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
 2.3 pix  Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
 2.1 pix  fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
 2.1 pix  fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Limiting magnitude estimates:
 15.7 mag.  Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
 15.6 mag.  Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
 12.8 mag.  fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
 12.8 mag.  fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
All-image limiting magnitude estimate:  12.8 (SNR )  12.5 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.IJTbI3qnfn (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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits 569.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits' -> 'wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS_IMAGE_NAME=wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS-calibrated image found: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
Checking if the catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits alredy exist and is non-empty...
Catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits
WCS catalog name: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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=18, blended=3670, bad_region=15071, passed=61010
Got 61010 stars (including 43196 good ones) from the SExtractor catalog wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat 
util/solve_plate_with_UCAC5 got 61010 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (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 0.010463 (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 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 4911 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 48947 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 47.7 to 59.4)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 48947 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4911 matched stars entering correct_measured_positions(), 48947 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4911 stars left (next iteration limit 5402)
Stop iterations.


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

SIP_REFIT: wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.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_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits N_match=4911 sigma_overall_arcsec=0.393 sigma_q1_arcsec=0.448 sigma_q2_arcsec=0.389 sigma_q3_arcsec=0.357 sigma_q4_arcsec=0.357 n_q1=1458 n_q2=953 n_q3=1497 n_q4=1003 worst_quadrant_to_overall_ratio=1.140
The image catalog is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits -region wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.TlAf9hHLrs (6) ############
Parsing command line arguments...
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits 570.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits' -> 'wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS_IMAGE_NAME=wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS-calibrated image found: wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
Checking if the catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits alredy exist and is non-empty...
Catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits
WCS catalog name: wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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=19, blended=3142, bad_region=13323, passed=55344
Got 55344 stars (including 39677 good ones) from the SExtractor catalog wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat 
util/solve_plate_with_UCAC5 got 55344 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 690 to 748 (Dec 48.2 to 59.3)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 4909 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 45075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.26" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 690 to 748 (Dec 48.2 to 59.3)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 45075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 45075 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Excluding outliers - 4909 stars left (next iteration limit 5399)
Stop iterations.


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

SIP_REFIT: wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.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_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits N_match=4909 sigma_overall_arcsec=0.294 sigma_q1_arcsec=0.255 sigma_q2_arcsec=0.327 sigma_q3_arcsec=0.331 sigma_q4_arcsec=0.278 n_q1=1527 n_q2=1035 n_q3=1370 n_q4=977 worst_quadrant_to_overall_ratio=1.123
The image catalog is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits -region wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.sHdh4Y12rA (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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS_IMAGE_NAME=wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS-calibrated image found: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Checking if the catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits alredy exist and is non-empty...
Catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
WCS catalog name: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=12, blended=255, bad_region=1609, passed=9540
Got 9540 stars (including 7699 good ones) from the SExtractor catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat 
util/solve_plate_with_UCAC5 got 9540 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.6'
Seting catalog search parameters based on the expected field of view 940.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013064 (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 0.010451 (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 4882 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4872 matched stars entering correct_measured_positions(), 4872 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.70" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4872 matched stars entering correct_measured_positions(), 8334 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 4881 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4872 matched stars entering correct_measured_positions(), 8334 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.69" 
Accuracy estimation diagnostic: 4872 matched stars entering correct_measured_positions(), 8336 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.70" 
Excluding outliers - 4872 stars left (next iteration limit 5359)
Stop iterations.


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

SIP_REFIT: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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=4872 robust_rms=6.105 arcsec worst_quadrant_rms=9.008 arcsec
SIP_REFIT: SIP order 3 trial: matched=4872 robust_rms=0.950 arcsec worst_quadrant_rms=1.199 arcsec
SIP_REFIT: SIP order 5 trial: matched=4872 robust_rms=0.796 arcsec worst_quadrant_rms=1.110 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4872 robust_rms_before=1.791 arcsec robust_rms_before_corrected=0.766 arcsec robust_rms_after=0.796 arcsec worst_quadrant_rms_before=1.048 worst_quadrant_rms_after=1.110
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 1.048 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits N_match=4872 sigma_overall_arcsec=0.729 sigma_q1_arcsec=0.735 sigma_q2_arcsec=0.598 sigma_q3_arcsec=0.971 sigma_q4_arcsec=0.612 n_q1=1714 n_q2=829 n_q3=1327 n_q4=1002 worst_quadrant_to_overall_ratio=1.332
The image catalog is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits -region wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
############ /tmp/tmp.2p3JLLmkfr (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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS_IMAGE_NAME=wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS-calibrated image found: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Checking if the catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits alredy exist and is non-empty...
Catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat corresponding to the image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
WCS catalog name: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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=10, blended=249, bad_region=1652, passed=10135
Got 10135 stars (including 8267 good ones) from the SExtractor catalog wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat 
util/solve_plate_with_UCAC5 got 10135 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 940.6'
Seting catalog search parameters based on the expected field of view 940.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013064 (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 0.010451 (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 4871 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4858 matched stars entering correct_measured_positions(), 4859 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.69" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4858 matched stars entering correct_measured_positions(), 8894 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 4870 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 8894 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 
Accuracy estimation diagnostic: 4857 matched stars entering correct_measured_positions(), 8894 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.68" 
Excluding outliers - 4857 stars left (next iteration limit 5343)
Stop iterations.


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

SIP_REFIT: wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4857 robust_rms=6.099 arcsec worst_quadrant_rms=8.378 arcsec
SIP_REFIT: SIP order 3 trial: matched=4857 robust_rms=0.937 arcsec worst_quadrant_rms=1.138 arcsec
SIP_REFIT: SIP order 5 trial: matched=4857 robust_rms=0.789 arcsec worst_quadrant_rms=1.025 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4857 robust_rms_before=1.760 arcsec robust_rms_before_corrected=0.763 arcsec robust_rms_after=0.789 arcsec worst_quadrant_rms_before=0.972 worst_quadrant_rms_after=1.025
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.972 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits N_match=4857 sigma_overall_arcsec=0.729 sigma_q1_arcsec=0.720 sigma_q2_arcsec=0.688 sigma_q3_arcsec=0.949 sigma_q4_arcsec=0.590 n_q1=1653 n_q2=813 n_q3=1427 n_q4=964 worst_quadrant_to_overall_ratio=1.301
The image catalog is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits -region wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Saving fully-calibrated image wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.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_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/wcs_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits
Preparing the HTML report for the field Lyn-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Lyn-02-Q2b1x1_2026-02-21_23-38-29_20.00sec_-14.90C_LIGHT_0227.fits at 08:57:18.19 +54:51:24.0:  12.14 +/- 0.01  detection
Forced photometry on wcs_Lyn-02-Q2b1x1_2026-03-21_00-15-59_20.00sec_-14.90C_LIGHT_0207.fits at 08:57:18.19 +54:51:24.0:  12.17 +/- 0.01  detection
Forced photometry reference-image weighted average:  12.16 +/- 0.01
Forced photometry filter REJECTED candidate at 08:57:18.19 +54:51:24.0: ref_mag=12.16 +/- 0.01 new_mean_mag=11.9909 delta=0.16 (need > 0.90)
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 75513_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445
The candidate 75513_fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445 did not pass the final checks
Discovery image 1     2026 08 29.38593    2461281.88593    12.06    08:57:18.07 +54:51:23.6   7358 3750   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-15-33_20.00sec_0.00C_LIGHT_0444.fits
Discovery image 2     2026 08 29.38656    2461281.88656    11.95    08:57:18.30 +54:51:24.4   7360 3744   /data_ssd/NMW-TexasTech/workdir//img_2026-08-29_CI_Lyn-02-Q2b1x1_044239_TTUQ2b1x1_831561_tglZ3fpn/fd_Lyn-02-Q2b1x1_2026-08-29_04-16-28_20.00sec_0.00C_LIGHT_0445.fits

make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 1s
Prepared the HTML report for the field Lyn-02-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Lyn-02-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461281.88592536 -observatory V36
10:38:43.26 +10:23:30.2 Mercury (-1.7mag)
13:11:41.09 -10:54:14.0 Venus (-4.6mag)
06:49:34.49 +23:26:35.8 Mars (1.3mag)
09:01:34.33 +17:28:37.4 Jupiter (-1.8mag)
00:53:36.60 +02:52:16.0 Saturn (0.5mag)
04:13:26.09 +21:01:20.4 Uranus (5.7mag)
00:14:33.24 +00:02:16.1 Neptune (7.7mag)
20:26:15.45 -23:37:19.7 Pluto (14.5mag)
23:19:31.14 -02:44:33.2 Moon (-12.4mag)
-rw-r--r-- 1 apache apache 363 Aug 29 04:45 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461281.88592536:
09:01:39.00 +17:28:15.4 Io (6.2mag)
09:01:40.42 +17:28:09.1 Europa (6.3mag)
09:01:49.55 +17:27:26.3 Ganymede (5.7mag)
09:02:03.04 +17:26:22.4 Callisto (6.9mag)
08:59:07.16 +17:40:40.8 Himalia (15.7mag)
09:01:36.32 +17:28:28.6 Thebe (16.6mag)
08:58:47.24 +17:35:29.0 Elara (17.7mag)
09:05:37.78 +16:59:10.3 Pasiphae (17.9mag)
09:03:17.74 +17:44:00.6 Carme (19.0mag)
00:53:34.27 +02:51:41.6 Titan (8.4mag)
00:53:30.65 +02:52:07.5 Rhea (9.7mag)
00:54:09.47 +02:54:49.7 Iapetus (11.1mag)
00:53:21.03 +02:52:09.5 Hyperion (14.4mag)
00:52:33.12 +02:42:54.1 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Aug 29 04:45 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461281.88592536:
20:57:23.89 -07:57:02.1 JWST
15:20:23.70 +51:05:09.8 Chandra
06:31:58.87 +15:58:34.9 XMM-Newton
-rw-r--r-- 1 apache apache 96 Aug 29 04:45 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461281.88592536 -observatory V36
03:34:14.57 +18:52:35.9 17.5mag P/1996 R2 (Lagerkvist)
18:00:35.28 -34:22:03.1 14.2mag P/2010 H2 (Vales)
07:12:25.72 -69:49:49.9 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:26.26 +33:28:33.0 17.7mag C/2017 K2 (PANSTARRS)
04:36:09.69 +43:57:44.6 17.8mag P/2021 N1 (ZTF)
22:20:47.48 +29:41:04.0 17.4mag C/2022 E2 (ATLAS)
07:03:01.85 +26:08:56.1 16.8mag C/2022 N2 (PANSTARRS)
10:41:14.85 +27:33:52.0 17.0mag C/2022 QE78 (ATLAS)
09:42:55.59 +05:16:34.7 18.0mag C/2022 R6 (PANSTARRS)
20:46:17.93 +62:50:09.8 18.0mag C/2023 H5 (Lemmon)
15:32:45.01 -14:51:43.6 14.7mag C/2023 R1 (PANSTARRS)
08:30:12.30 +32:22:42.6 15.7mag C/2024 E1 (Wierzchos)
15:05:49.10 +15:25:38.5 17.9mag C/2024 G6 (ATLAS)
18:40:15.71 +43:25:46.1 13.7mag C/2024 J3 (ATLAS)
20:38:53.06 +49:37:59.1 17.5mag C/2024 R4 (PANSTARRS)
05:30:24.86 -12:55:57.0 15.2mag C/2024 T5 (ATLAS)
07:08:03.42 +20:17:04.3 17.9mag C/2025 J1 (Borisov)
11:03:56.46 +19:26:51.0 17.0mag C/2025 V2 (Rankin)
13:12:34.27 +00:49:14.6 16.9mag C/2025 Y1 (ATLAS)
16:21:25.88 +75:22:20.1 16.3mag C/2026 A2 (Bok)
03:09:00.01 +46:19:04.6 17.3mag C/2026 B2 (Sun-Gao)
12:05:07.44 +10:32:29.3 17.5mag A/2026 E1
22:18:32.73 -33:54:59.9 7.4mag 10P/Tempel
11:42:16.29 -04:48:51.5 16.3mag 29P/Schwassmann-Wachmann
11:50:36.76 -02:14:57.6 17.5mag 63P/Wild
00:49:02.01 -06:30:35.7 15.4mag 65P/Gunn
06:21:31.41 +19:51:45.0 13.7mag 78P/Gehrels
20:20:59.94 -25:34:06.3 17.3mag 84P/Giclas
03:15:21.09 +14:48:13.1 16.7mag 88P/Howell
08:46:29.77 +24:27:22.3 16.5mag 93P/Lovas
05:09:20.61 +25:10:35.5 17.1mag 112P/Urata-Niijima
07:04:42.46 +26:54:39.1 16.0mag 114P/Wiseman-Skiff
10:07:47.17 +22:42:38.6 14.9mag 123P/West-Hartley
12:27:19.12 -18:10:28.0 17.3mag 124P/Mrkos
06:06:10.32 +20:52:59.6 16.0mag 128P/Shoemaker-Holt
07:02:55.42 +17:37:18.7 17.9mag 131P/Mueller
23:56:43.72 +02:49:15.4 17.4mag 139P/Vaisala-Oterma
02:57:54.06 -18:18:37.5 12.3mag 161P/Hartley-IRAS
08:25:52.12 +37:59:49.1 16.2mag 162P/Siding Spring
10:08:30.39 +21:09:34.9 12.6mag 169P/NEAT
03:15:21.26 +09:05:09.0 14.5mag 220P/McNaught
04:23:22.25 +33:22:16.0 15.2mag 260P/McNaught
08:07:22.12 +36:33:15.6 17.3mag 295P/LINEAR
15:19:51.64 +00:45:27.6 17.8mag 391P/Kowalski
09:19:59.17 +17:18:28.3 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.2K Aug 29 04:45 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:32.95 -68:48:30.00  ASASSN-26no  2026-05-24 8.41
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
-rw-r--r-- 1 apache apache 5.7K Aug 29 04:45 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Aug 29 04:45 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
12:57:00.178 -28:38:41.60  AT 2026xtk  2026-01-27.59 21.76
01:03:05.392 -48:27:31.47  AT 2026xtj  2026-07-20.74 19.53
09:35:34.709 +00:56:04.68  AT 2026xti  2026-01-27.47 21.2
21:52:33.253 -17:58:16.44  AT 2026xth  2026-08-06.68 19.94
12:08:48.403 -07:54:21.72  AT 2026xtg  2026-02-24.49 20.36
02:00:20.418 -49:16:45.81  AT 2026xtf  2026-07-20.78 19.97
10:46:21.315 -03:27:30.71  AT 2026xte  2026-01-20.62 22.02
02:26:56.393 -42:38:05.65  AT 2026xtd  2026-07-20.77 19.71
09:49:53.865 +05:48:24.44  AT 2026xtc  2026-01-11.59 22.2
02:48:02.176 -56:19:29.33  AT 2026xtb  2026-07-20.80 19.96
00:20:16.346 -20:36:53.55  AT 2026xta  2026-08-06.64 19.91
23:40:20.063 -20:05:55.81  AT 2026xsz  2026-07-21.72 20.55
01:51:20.204 -06:48:48.83  AT 2026xsy  2026-07-20.76 19.66
19:03:24.963 +30:17:50.43  AT 2026xsx  2026-08-05.87 18.93
22:46:52.408 -07:52:32.86  AT 2026xsw  2026-08-05.65 18.73
07:13:40.090 +40:40:34.39  AT 2026xsv  2026-02-06.29 20.62
00:27:08.471 -13:06:25.38  AT 2026xsu  2026-08-06.65 19.81
00:17:40.281 -15:08:19.75  SN 2026xst  2026-08-06.65 19.39
23:07:10.081 -46:29:32.67  AT 2026xss  2026-08-01.76 19.43
23:24:16.986 -39:54:38.19  AT 2026xsr  2026-08-01.59 19.34
-rw-r--r-- 1 apache apache 88K Aug 29 04:45 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Sat Aug 29 04:44:39 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 0 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 3s (0.05 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 41s (0.68 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 5s (0.08 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 2s (0.03 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 52s (0.87 min)
TIMING SExtractor: 3 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 1 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 7s (0.12 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 9s (0.15 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 0s (0.00 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: 18s (0.30 min)
FIELD_Lyn-02-Q2b1x1: 82s (1.37 min)
=======================================
TOTAL_RUNTIME: 88s (1.47 min)
Finished: Sat Aug 29 04:46:07 CDT 2026