FITS images used in this processing run:

Field Ser-01-Q2b1x1 reference image: Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Field Ser-01-Q2b1x1 reference image: Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Field Ser-01-Q2b1x1 second-epoch image: Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Field Ser-01-Q2b1x1 second-epoch image: Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461209.77694144 18.06.2026 06:38:37.740   /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
First image: 2461209.77694144 18.06.2026 06:38:37.740   /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Last  image: 2461320.62402775 07.10.2026 02:58:25.998   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 4
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.15
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: 10 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):  5591
Objects passed selection criteria:  5588
Measurements per detected object (mean, median, min, max):    3.4    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.4    4.0    2    4
Average stars detected per image: 4908.25
Average stars matched: 4856.5 (98.9457 %)
Memory usage VmPeak:   232612 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Tue Oct  6 12:01:37 CDT 2026
VaST build number  1.0rc89-233-gd5bdb823
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-06)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Wed Oct  7 09:42:00 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: 2461209.77694144 18.06.2026 06:38:37.740   /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
First image: 2461209.77694144 18.06.2026 06:38:37.740   /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Last  image: 2461320.62402775 07.10.2026 02:58:25.998   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 5
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -6.85
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: 68 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):  32731
Objects passed selection criteria:  32661
Measurements per detected object (mean, median, min, max):    3.3    4.0    2    4
Measurements per selected object (mean, median, min, max):    3.3    4.0    2    4
Average stars detected per image: 28788
Average stars matched: 28196.2 (97.9445 %)
Memory usage VmPeak:   258780 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Tue Oct  6 12:01:37 CDT 2026
VaST build number  1.0rc89-233-gd5bdb823
OpenMP enabled: Yes
SExtractor version 2.25.2 (2026-10-06)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Wed Oct  7 09:44:32 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
SEXTRACTOR_CONFIG_FILES_HIGH_PRIORITY_EXTRA= default.sex.telephoto_lens_vTTU
HIGH_PRIORITY_FIELDS= Sco6 Oph-08-Q1b1x1 Oph-08-Q2b1x1 Sco-04-Q1b1x1 Sco-04-Q2b1x1 Sgr-04-Q1b1x1 Sgr-04-Q2b1x1 242
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: 
Ser-01-Q2b1x1
#######################################
########### Starting Ser-01-Q2b1x1 ###########
Processing Ser-01-Q2b1x1
server tau has sufficient free disk space available: 1254830 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 1254830 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.png' -> 'transient_report/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits_preview.png'

Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits


renamed 'Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.png' -> 'transient_report/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits_preview.png'

Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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= 423.4692
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 490.9527
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1357.2309
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 475.3954
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1344.9331
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 473.7236
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.20503
INFO:                  SECOND_EPOCH__SD_ratio= 0.004
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     19.3500003814697 / [degC] Focuser temperature
AMBTEMP =                 20.6 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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= '2026-10-06T21:57:23.9388177' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-07T02:57:23.9388177' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61320.1231937269 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-07T02:57:33.8401710' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61320.1233083331 / 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      =     235.383564605962 / [deg] RA of telescope" status=0
Record 32: "DEC     =     21.9998598666658 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     17.8794444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     284.841111111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     3.22633395914293 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / 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  = 'Ser-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '15 41 32'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 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  =                20709 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20709 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     19.3500003814697 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     19.3500003814697 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 60.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 20.6 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 13.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             3.600288 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             1.800144 / [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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/d_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits :)

Spent 0.708297 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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/d_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     18.7299995422363 / [degC] Focuser temperature
AMBTEMP =                 21.4 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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= '2026-10-06T21:58:25.9984728' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-10-07T02:58:25.9984728' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61320.1239120141 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-10-07T02:58:35.9008588' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61320.1240266203 / 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      =     235.383564649191 / [deg] RA of telescope" status=0
Record 32: "DEC     =     21.9998598993723 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     17.6713888888889 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     284.967222222222 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =       3.262284340068 / Airmass at frame center (Gueymard 1993)" status=0
Record 36: "PIERSIDE= 'East'               / 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  = 'Ser-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '15 41 32'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+22 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  =                20709 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20709 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     18.7299995422363 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     18.7299995422363 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 12.0 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 55.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                902.1 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 21.4 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 14.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             7.200576 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.100488 / [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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/d_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits :)

Spent 0.740174 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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/d_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Previews of the CALIBRATED second-epoch images:


fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits



fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
  
SExtractor catalog cache: saved Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.cat to cache
SExtractor catalog cache: saved Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Checking WCS cache directory local_wcs_cache
Checking 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: 2461320.62330947
Re-using ../asassn_transients_list.txt
'../asassn_transients_list.txt' -> 'asassn_transients_list.txt'
Re-using ../tocp_transients_list.txt
'../tocp_transients_list.txt' -> 'tocp_transients_list.txt'
Re-using ../tns_transients_list.txt
'../tns_transients_list.txt' -> 'tns_transients_list.txt'
Plate-solving the images
wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits exists and is non-empty
wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits exists and is non-empty
wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits exists and is non-empty
wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (1st reference image)
verification OK: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Image size: 937.1'x624.1'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:30.197 +21:59:39.77 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits (1st new image)
verification OK: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Image size: 938.5'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:36.732 +22:00:23.73 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 15:41:30.197 +21:59:39.77
Second-epoch image center 15:41:36.732 +22:00:23.73
Angular distance between the image centers 0.0280 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits (2nd new image)
verification OK: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Image size: 938.7'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:33.528 +22:01:00.96 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 15:41:30.197 +21:59:39.77
Second-epoch image center 15:41:33.528 +22:01:00.96
Angular distance between the image centers 0.0260 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  15:41:36.732 +22:00:23.73
Second-epoch second image center 15:41:33.528 +22:01:00.96
Angular distance between the image centers 0.01613 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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits &> /tmp/tmp.41FPz6ygiE
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits &> /tmp/tmp.jASvEnizte
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits &> /tmp/tmp.6MjxiVYXtQ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits &> /tmp/tmp.6GLzBl8G1n
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Calibrating the magnitude scale
Found non-empty wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat 
Found non-empty wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat
The reference image (wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits) and catalog (wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat) found
'wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat' -> 'wcsmag.cat'
Read 7832 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6295 to 244.1087 deg, Dec +16.6026 to +27.2570 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 226.6295 to 244.1087 deg, Dec 16.6026 to 27.2570 deg
Loaded 5148 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): 4103 out of 4252 total matches.
Matched with Tycho-2 4252 out of 7832 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.775600
a=0.000000 b=1.000000 c=22.775600
From vast_summary.log: estimated ref. image limiting mag.:  -7.15
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.63

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

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 7832 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6295 to 244.1087 deg, Dec +16.6026 to +27.2570 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 226.6295 to 244.1087 deg, Dec 16.6026 to 27.2570 deg
Loaded 5148 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): 4103 out of 4252 total matches.
Matched with Tycho-2 4252 out of 7832 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Forced-photometry filter: calibrated wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits -> calib.txt_param_ref_wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (aperture=6.2)
Read 7152 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6287 to 244.1088 deg, Dec +16.6026 to +27.2691 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 226.6287 to 244.1088 deg, Dec 16.6026 to 27.2691 deg
Loaded 5155 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): 4111 out of 4234 total matches.
Matched with Tycho-2 4234 out of 7152 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Forced-photometry filter: calibrated wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits -> calib.txt_param_ref_wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits (aperture=6.3)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 2 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.3 pix  Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
 2.3 pix  Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
 2.7 pix  fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
 2.5 pix  fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Limiting magnitude estimates:
 15.6 mag.  Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
 15.5 mag.  Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
 14.8 mag.  fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
 14.8 mag.  fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
All-image limiting magnitude estimate:  14.8 (SNR )  11.8 (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.41FPz6ygiE (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits' -> 'wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS_IMAGE_NAME=wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS-calibrated image found: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Checking if the catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits alredy exist and is non-empty...
Catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS catalog name: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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=440, bad_region=1716, passed=7832
Got 7832 stars (including 5752 good ones) from the SExtractor catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat 
util/solve_plate_with_UCAC5 got 7832 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (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 0.010412 (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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4896 matched stars entering correct_measured_positions(), 4896 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4896 matched stars entering correct_measured_positions(), 6489 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4904 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4896 matched stars entering correct_measured_positions(), 6489 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.31" 
Accuracy estimation diagnostic: 4896 matched stars entering correct_measured_positions(), 6489 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4896 stars left (next iteration limit 5385)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits N_match=4896 sigma_overall_arcsec=0.347 sigma_q1_arcsec=0.332 sigma_q2_arcsec=0.346 sigma_q3_arcsec=0.350 sigma_q4_arcsec=0.349 n_q1=1560 n_q2=822 n_q3=1654 n_q4=860 worst_quadrant_to_overall_ratio=1.010
The image catalog is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits -region wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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.jASvEnizte (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits' -> 'wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS_IMAGE_NAME=wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS-calibrated image found: wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Checking if the catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits alredy exist and is non-empty...
Catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS catalog name: wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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=400, bad_region=1422, passed=7152
Got 7152 stars (including 5402 good ones) from the SExtractor catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat 
util/solve_plate_with_UCAC5 got 7152 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (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 0.010412 (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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 4900 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 6033 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4906 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 6033 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Accuracy estimation diagnostic: 4900 matched stars entering correct_measured_positions(), 6033 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4900 stars left (next iteration limit 5390)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits N_match=4900 sigma_overall_arcsec=0.336 sigma_q1_arcsec=0.312 sigma_q2_arcsec=0.351 sigma_q3_arcsec=0.341 sigma_q4_arcsec=0.352 n_q1=1561 n_q2=812 n_q3=1694 n_q4=833 worst_quadrant_to_overall_ratio=1.048
The image catalog is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits -region wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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.6MjxiVYXtQ (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS_IMAGE_NAME=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS-calibrated image found: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Checking if the catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits alredy exist and is non-empty...
Catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS catalog name: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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=2, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=209, bad_region=785, passed=4768
Got 4768 stars (including 3800 good ones) from the SExtractor catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat 
util/solve_plate_with_UCAC5 got 4768 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.5'
Seting catalog search parameters based on the expected field of view 938.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013035 (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 0.010428 (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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 3729 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3728 matched stars entering correct_measured_positions(), 3728 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3728 matched stars entering correct_measured_positions(), 4159 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 3729 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3727 matched stars entering correct_measured_positions(), 4159 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 3727 matched stars entering correct_measured_positions(), 4159 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 3727 stars left (next iteration limit 4100)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3727 robust_rms=7.114 arcsec worst_region_rms=10.477 arcsec outer_annulus_rms=10.477 arcsec
SIP_REFIT: SIP order 3 trial: matched=3727 robust_rms=0.663 arcsec worst_region_rms=0.813 arcsec outer_annulus_rms=0.813 arcsec
SIP_REFIT: SIP order 5 trial: matched=3727 robust_rms=0.492 arcsec worst_region_rms=0.644 arcsec outer_annulus_rms=0.644 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3727 robust_rms_before=0.860 arcsec robust_rms_before_corrected=0.358 arcsec robust_rms_after=0.492 arcsec worst_region_rms_before=0.551 worst_region_rms_after=0.644 outer_annulus_rms_before=0.882 outer_annulus_rms_after=0.644
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.551 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits worst_region_rms_kept=0.551 arcsec robust_rms_kept=0.358 arcsec matched=3727
WCS_QUALITY_DIAG: file=fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits N_match=3727 sigma_overall_arcsec=0.361 sigma_q1_arcsec=0.377 sigma_q2_arcsec=0.328 sigma_q3_arcsec=0.370 sigma_q4_arcsec=0.352 n_q1=1268 n_q2=603 n_q3=1299 n_q4=557 worst_quadrant_to_overall_ratio=1.044
The image catalog is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits -region wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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.6GLzBl8G1n (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS_IMAGE_NAME=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS-calibrated image found: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Checking if the catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits alredy exist and is non-empty...
Catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS catalog name: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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=1, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=0, blended=241, bad_region=784, passed=4719
Got 4719 stars (including 3729 good ones) from the SExtractor catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat 
util/solve_plate_with_UCAC5 got 4719 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.7'
Seting catalog search parameters based on the expected field of view 938.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013038 (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 0.010430 (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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 3658 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3655 matched stars entering correct_measured_positions(), 3655 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 3655 matched stars entering correct_measured_positions(), 4102 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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 3658 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 3656 matched stars entering correct_measured_positions(), 4102 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 3656 matched stars entering correct_measured_positions(), 4102 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 3656 stars left (next iteration limit 4020)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=3656 robust_rms=7.288 arcsec worst_region_rms=10.828 arcsec outer_annulus_rms=10.828 arcsec
SIP_REFIT: SIP order 3 trial: matched=3656 robust_rms=0.564 arcsec worst_region_rms=0.683 arcsec outer_annulus_rms=0.683 arcsec
SIP_REFIT: SIP order 5 trial: matched=3656 robust_rms=0.438 arcsec worst_region_rms=0.497 arcsec outer_annulus_rms=0.497 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=3656 robust_rms_before=0.825 arcsec robust_rms_before_corrected=0.335 arcsec robust_rms_after=0.438 arcsec worst_region_rms_before=0.460 worst_region_rms_after=0.497 outer_annulus_rms_before=0.794 outer_annulus_rms_after=0.497
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.460 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits worst_region_rms_kept=0.460 arcsec robust_rms_kept=0.335 arcsec matched=3656
WCS_QUALITY_DIAG: file=fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits N_match=3656 sigma_overall_arcsec=0.343 sigma_q1_arcsec=0.330 sigma_q2_arcsec=0.342 sigma_q3_arcsec=0.355 sigma_q4_arcsec=0.348 n_q1=1217 n_q2=604 n_q3=1281 n_q4=554 worst_quadrant_to_overall_ratio=1.034
The image catalog is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits -region wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits to local_wcs_cache/
'wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits' -> 'local_wcs_cache/wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits'
Saving the final (post-refit) wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits to local_wcs_cache/
'wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits' -> 'local_wcs_cache/wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits'
Saving the final (post-refit) wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits to local_wcs_cache/
'wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits' -> 'local_wcs_cache/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits'
Saving the final (post-refit) wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits to local_wcs_cache/
'wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits' -> 'local_wcs_cache/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits sigma_overall=0.347 worst_q_ratio=1.010
ref2=Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits sigma_overall=0.336 worst_q_ratio=1.048
new1=fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits sigma_overall=0.361 worst_q_ratio=1.044
new2=fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits sigma_overall=0.343 worst_q_ratio=1.034
reference average sigma_overall=0.3415 worst_q_ratio=1.029
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207_astrometric_residuals.png (4896 matched stars from wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.30 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196_astrometric_residuals.png (4900 matched stars from wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132_astrometric_residuals.png (3727 matched stars from wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.32 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133_astrometric_residuals.png (3656 matched stars from wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.30 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits'
Saving fully-calibrated image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits'
Preparing the HTML report for the field Ser-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 1s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 1s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20165_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133
The candidate 20165_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133 did not pass the final checks
Discovery image 2     2026 10 07.12403    2461320.62403    10.41    15:59:20.49 +19:46:48.4   2271 4546   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits

**** FOUND  15:59:20.47 +19:46:48.1 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 06384_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133
The candidate 06384_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133 did not pass the final checks
Discovery image 3     2026 10 07.12403    2461320.62403    9.15    16:06:11.49 +18:22:15.3   1261 5388   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits

**** FOUND  16:06:11.51 +18:22:15.4 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field Ser-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
  
SExtractor catalog cache: saved Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.cat to cache
SExtractor catalog cache: saved Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Creating symlink local_wcs_cache/wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Creating symlink local_wcs_cache/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Creating symlink local_wcs_cache/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Checking 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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits exists and is non-empty
wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits exists and is non-empty
wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits exists and is non-empty
wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (1st reference image)
verification OK: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Image size: 937.1'x624.1'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.87"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:30.197 +21:59:39.77 J2000 4789.000 3195.000 
###################################
The image scale is 5.87"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.8"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits (1st new image)
verification OK: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Image size: 938.5'x624.2'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:36.732 +22:00:23.73 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 15:41:30.197 +21:59:39.77
Second-epoch image center 15:41:36.732 +22:00:23.73
Angular distance between the image centers 0.0280 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits (2nd new image)
verification OK: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Image size: 938.7'x624.3'  15.6(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.88"/pix along the X axis and 5.86"/pix along the Y axis
Image center: 15:41:33.528 +22:01:00.96 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 15:41:30.197 +21:59:39.77
Second-epoch image center 15:41:33.528 +22:01:00.96
Angular distance between the image centers 0.0260 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  15:41:36.732 +22:00:23.73
Second-epoch second image center 15:41:33.528 +22:01:00.96
Angular distance between the image centers 0.01613 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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits &> /tmp/tmp.Il6ZxOZ1EF
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits &> /tmp/tmp.T5YPqMun8e
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits &> /tmp/tmp.E7tlKfMdcU
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits &> /tmp/tmp.ivJTT6PZ3S
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Calibrating the magnitude scale
Found non-empty wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat 
Found non-empty wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits and wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat
The reference image (wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits) and catalog (wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat) found
'wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat' -> 'wcsmag.cat'
Read 43857 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6295 to 244.1086 deg, Dec +16.5936 to +27.2570 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 226.6295 to 244.1086 deg, Dec 16.5936 to 27.2570 deg
Loaded 5151 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): 3925 out of 4277 total matches.
Matched with Tycho-2 4277 out of 43857 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.644200
a=0.000000 b=1.000000 c=22.644200
From vast_summary.log: estimated ref. image limiting mag.:  -6.85
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.79

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.79

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 43857 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6295 to 244.1086 deg, Dec +16.5936 to +27.2570 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 226.6295 to 244.1086 deg, Dec 16.5936 to 27.2570 deg
Loaded 5151 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): 3925 out of 4277 total matches.
Matched with Tycho-2 4277 out of 43857 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Forced-photometry filter: calibrated wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits -> calib.txt_param_ref_wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (aperture=4.8)
Read 39850 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.6287 to 244.1205 deg, Dec +16.6026 to +27.2691 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 226.6287 to 244.1205 deg, Dec 16.6026 to 27.2691 deg
Loaded 5159 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): 3929 out of 4254 total matches.
Matched with Tycho-2 4254 out of 39850 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Forced-photometry filter: calibrated wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits -> calib.txt_param_ref_wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits (aperture=4.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 2 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
 2.2 pix  Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
 2.5 pix  fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
 2.5 pix  fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Limiting magnitude estimates:
 15.8 mag.  Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
 15.7 mag.  Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
 15.0 mag.  fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
 15.0 mag.  fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
All-image limiting magnitude estimate:  15.0 (SNR )  14.1 (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.Il6ZxOZ1EF (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits' -> 'wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS_IMAGE_NAME=wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS-calibrated image found: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
Checking if the catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits alredy exist and is non-empty...
Catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits
WCS catalog name: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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=14, blended=2023, bad_region=6267, passed=43843
Got 43843 stars (including 35991 good ones) from the SExtractor catalog wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat 
util/solve_plate_with_UCAC5 got 43843 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (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 0.010412 (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 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4890 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 4886 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 39139 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 532 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4890 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 39139 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4886 matched stars entering correct_measured_positions(), 39139 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4886 stars left (next iteration limit 5374)
Stop iterations.


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

SIP_REFIT: wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits N_match=4886 sigma_overall_arcsec=0.337 sigma_q1_arcsec=0.318 sigma_q2_arcsec=0.372 sigma_q3_arcsec=0.335 sigma_q4_arcsec=0.338 n_q1=1540 n_q2=818 n_q3=1655 n_q4=873 worst_quadrant_to_overall_ratio=1.105
The image catalog is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits -region wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_LIGHT_0207.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ser-01-Q2b1x1_2026-06-18_01-38-37_20.00sec_4.90C_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.T5YPqMun8e (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits' -> 'wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS_IMAGE_NAME=wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS-calibrated image found: wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
Checking if the catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits alredy exist and is non-empty...
Catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat corresponding to the image wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits
WCS catalog name: wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=8, blended=2085, bad_region=5494, passed=39842
Got 39842 stars (including 32944 good ones) from the SExtractor catalog wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat 
util/solve_plate_with_UCAC5 got 39842 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (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 0.010412 (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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4896 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 4892 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 35668 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 

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 533 to 588 (Dec 16.6 to 27.3)
Done reading UCAC5 zone files...
Matched 4896 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 35668 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 35668 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 
Excluding outliers - 4892 stars left (next iteration limit 5381)
Stop iterations.


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

SIP_REFIT: wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits N_match=4892 sigma_overall_arcsec=0.336 sigma_q1_arcsec=0.313 sigma_q2_arcsec=0.354 sigma_q3_arcsec=0.342 sigma_q4_arcsec=0.352 n_q1=1577 n_q2=786 n_q3=1701 n_q4=828 worst_quadrant_to_overall_ratio=1.053
The image catalog is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits -region wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Ser-01-Q2b1x1_2026-07-07_00-51-35_20.00sec_4.90C_LIGHT_0196.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.E7tlKfMdcU (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS_IMAGE_NAME=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS-calibrated image found: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Checking if the catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits alredy exist and is non-empty...
Catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
WCS catalog name: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=4, blended=821, bad_region=3336, passed=25038
Got 25038 stars (including 20960 good ones) from the SExtractor catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat 
util/solve_plate_with_UCAC5 got 25038 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.5'
Seting catalog search parameters based on the expected field of view 938.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013035 (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 0.010428 (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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4890 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4884 matched stars entering correct_measured_positions(), 4884 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4884 matched stars entering correct_measured_positions(), 22570 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4890 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 22570 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 4883 matched stars entering correct_measured_positions(), 22570 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4883 stars left (next iteration limit 5372)
Stop iterations.


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

SIP_REFIT: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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=4883 robust_rms=6.997 arcsec worst_region_rms=11.164 arcsec outer_annulus_rms=11.164 arcsec
SIP_REFIT: SIP order 3 trial: matched=4883 robust_rms=0.666 arcsec worst_region_rms=0.845 arcsec outer_annulus_rms=0.845 arcsec
SIP_REFIT: SIP order 5 trial: matched=4883 robust_rms=0.492 arcsec worst_region_rms=0.640 arcsec outer_annulus_rms=0.640 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4883 robust_rms_before=0.872 arcsec robust_rms_before_corrected=0.362 arcsec robust_rms_after=0.492 arcsec worst_region_rms_before=0.555 worst_region_rms_after=0.640 outer_annulus_rms_before=0.896 outer_annulus_rms_after=0.640
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.555 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits worst_region_rms_kept=0.555 arcsec robust_rms_kept=0.362 arcsec matched=4883
WCS_QUALITY_DIAG: file=fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits N_match=4883 sigma_overall_arcsec=0.359 sigma_q1_arcsec=0.374 sigma_q2_arcsec=0.324 sigma_q3_arcsec=0.376 sigma_q4_arcsec=0.349 n_q1=1639 n_q2=782 n_q3=1695 n_q4=767 worst_quadrant_to_overall_ratio=1.047
The image catalog is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits -region wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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.ivJTT6PZ3S (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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS_IMAGE_NAME=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS-calibrated image found: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Checking if the catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits alredy exist and is non-empty...
Catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat corresponding to the image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
WCS catalog name: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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=3, blended=920, bad_region=3272, passed=25672
Got 25672 stars (including 21579 good ones) from the SExtractor catalog wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat 
util/solve_plate_with_UCAC5 got 25672 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 938.7'
Seting catalog search parameters based on the expected field of view 938.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013038 (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 0.010430 (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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 4878 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4878 matched stars entering correct_measured_positions(), 23250 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 532 to 588 (Dec 16.5 to 27.3)
Done reading UCAC5 zone files...
Matched 4883 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 23250 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4879 matched stars entering correct_measured_positions(), 23250 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Excluding outliers - 4879 stars left (next iteration limit 5365)
Stop iterations.


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

SIP_REFIT: wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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=4879 robust_rms=7.070 arcsec worst_region_rms=11.244 arcsec outer_annulus_rms=11.244 arcsec
SIP_REFIT: SIP order 3 trial: matched=4879 robust_rms=0.575 arcsec worst_region_rms=0.704 arcsec outer_annulus_rms=0.704 arcsec
SIP_REFIT: SIP order 5 trial: matched=4879 robust_rms=0.448 arcsec worst_region_rms=0.505 arcsec outer_annulus_rms=0.499 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4879 robust_rms_before=0.841 arcsec robust_rms_before_corrected=0.348 arcsec robust_rms_after=0.448 arcsec worst_region_rms_before=0.472 worst_region_rms_after=0.505 outer_annulus_rms_before=0.790 outer_annulus_rms_after=0.499
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-region baseline 0.472 arcsec) - keeping the original
SIP_REFIT_REJECTED: file=fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits worst_region_rms_kept=0.472 arcsec robust_rms_kept=0.348 arcsec matched=4879
WCS_QUALITY_DIAG: file=fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits N_match=4879 sigma_overall_arcsec=0.351 sigma_q1_arcsec=0.343 sigma_q2_arcsec=0.329 sigma_q3_arcsec=0.371 sigma_q4_arcsec=0.338 n_q1=1657 n_q2=766 n_q3=1697 n_q4=759 worst_quadrant_to_overall_ratio=1.057
The image catalog is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits -region wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Saving fully-calibrated image wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.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_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Preparing the HTML report for the field Ser-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
make_report_in_HTML.sh Phase 1 (network queries): 2s
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 41207_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133
The candidate 41207_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133 did not pass the final checks
Discovery image 3     2026 10 07.12403    2461320.62403    10.52    15:59:20.48 +19:46:48.4   2271 4546   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits

**** FOUND  15:59:20.46 +19:46:48.1 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 35962_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133
The candidate 35962_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133 did not pass the final checks
Discovery image 3     2026 10 07.12403    2461320.62403    9.37    16:06:11.50 +18:22:15.1   1261 5388   /data_ssd/NMW-TexasTech/workdir//img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits

**** FOUND  16:06:11.51 +18:22:15.2 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 2s
Prepared the HTML report for the field Ser-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
Source monitoring: measuring positions from /data_ssd/NMW-TexasTech/workdir/img_2026-10-07_CI_Ser-01-Q2b1x1_085608_TTUQ2b1x1_1147919_l6yFLF2D/monitoring_positions.txt
Source monitoring: positions closer than 100 pix to a frame edge are recorded as edge
Read 25042 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.5958 to 244.1056 deg, Dec +16.5202 to +27.2776 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 226.5958 to 244.1056 deg, Dec 16.5202 to 27.2776 deg
Loaded 5209 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): 4096 out of 4278 total matches.
Matched with Tycho-2 4278 out of 25042 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Observation time (mid-exposure, UTC): JD 2461320.62331 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 235.40394 deg  Dec= +22.00743 deg
Frame center: alt= +17.740 deg  az= 282.591 deg  airmass= 3.2409
Header cross-check: CENTALT= 17.879 deg (difference -0.139 deg)
Header cross-check: AIRMASS= 3.2263 (we compute 3.2409)
Airmass zero-point fit: OK  k= +0.1794 +/- 0.0040 mag/airmass  N= 3250  airmass span 2.1894-6.1710  scatter 0.1892 mag
Source monitoring: airmass zero-point for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits: OK +0.578487 -0.179351 3.2409 +0.1794 3250 3.9817 0.1892 2.1894 6.1710
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits list=monitoring_pixlist3930063.tmp aperture=5.3
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.347550
Local star coverage test: 25042 stars in wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits.wcscat, test radius 302 pix (0.50 deg), 120.8 stars per circle at the frame's mean density
Forced photometry: center=(2322.53, 811.98) aperture=5.3
Annulus: inner=10.60 outer=26.50 edge margin=100.00
Background annulus: 1846 pixels
Iterative clipping converged after 2 iterations, 1840/1846 pixels remain
SExtractor background: mode=774.73 median=773.00 mean=771.85 sigma=48.12 -> bg=774.73 (1840 pixels)
Aperture sum=126391.63 N_eff=22.0618
Net flux=109299.65 noise=226.02 SNR=483.59
Instrumental magnitude: -12.5965
Calibrated magnitude: 9.7510
Local star coverage at (2322.53, 811.98): 117 catalog stars within 302 pix, 120.8 expected at the frame's mean star density
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits
Source monitoring: 1 position(s) measured on wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-57-23_20.00sec_-0.00C_LIGHT_0132.fits (aperture 5.3 pix)
Read 25675 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 226.5885 to 244.1047 deg, Dec +16.5454 to +27.2895 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 226.5885 to 244.1047 deg, Dec 16.5454 to 27.2895 deg
Loaded 5207 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): 4067 out of 4281 total matches.
Matched with Tycho-2 4281 out of 25675 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits via Tycho-2
util/pixel_flux_airmass_correction processing wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Observation time (mid-exposure, UTC): JD 2461320.62403 (FITS header)
Observing site: lat= +33.748292 deg  lon= -101.958319 deg east-positive (SITELAT/SITELONG FITS header keywords)
Frame center (pixel 4788.5 3194.5): RA= 235.39058 deg  Dec= +22.01777 deg
Frame center: alt= +17.527 deg  az= 282.711 deg  airmass= 3.2781
Header cross-check: CENTALT= 17.671 deg (difference -0.145 deg)
Header cross-check: AIRMASS= 3.2623 (we compute 3.2781)
Airmass zero-point fit: OK  k= +0.1952 +/- 0.0039 mag/airmass  N= 3244  airmass span 2.2046-6.1932  scatter 0.1910 mag
Source monitoring: airmass zero-point for wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits: OK +0.640754 -0.195169 3.2781 +0.1952 3244 3.9886 0.1910 2.2046 6.1932
Edge margin: 100.0 pix (FORCED_PHOTOMETRY_EDGE_MARGIN_PIX)
Forced photometry (list mode): image=wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits list=monitoring_pixlist3930063.tmp aperture=5.2
Image size: 9576 x 6388
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
Saturation level: 57000.0
Calibration (from calib.txt_param_monitoring, fit_function=3): cal_mag = 0.000000 * x^2 + 1.000000 * x + 22.325600
Local star coverage test: 25675 stars in wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits.wcscat, test radius 302 pix (0.50 deg), 124.1 stars per circle at the frame's mean density
Forced photometry: center=(2315.77, 818.70) aperture=5.2
Annulus: inner=10.40 outer=26.00 edge margin=100.00
Background annulus: 1784 pixels
Iterative clipping converged after 2 iterations, 1777/1784 pixels remain
SExtractor background: mode=757.89 median=760.00 mean=761.41 sigma=47.99 -> bg=757.89 (1777 pixels)
Aperture sum=130051.00 N_eff=21.2372
Net flux=113955.53 noise=221.16 SNR=515.25
Instrumental magnitude: -12.6418
Calibrated magnitude: 9.6838
Local star coverage at (2315.77, 818.70): 139 catalog stars within 302 pix, 124.1 expected at the frame's mean star density
Source monitoring: airmass zero-point term applied to the measurements on wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits
Source monitoring: 1 position(s) measured on wcs_fd_Ser-01-Q2b1x1_2026-10-06_21-58-25_20.00sec_-0.00C_LIGHT_0133.fits (aperture 5.2 pix)
########### Completed Ser-01-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461320.62330947 -observatory V36
14:19:10.98 -16:28:01.0 Mercury (-0.0mag)
14:11:28.48 -21:10:49.4 Venus (-4.7mag)
08:29:54.13 +20:08:22.7 Mars (1.1mag)
09:31:33.20 +15:18:15.1 Jupiter (-1.9mag)
00:43:40.52 +01:44:41.9 Saturn (0.3mag)
04:12:29.62 +20:59:00.4 Uranus (5.6mag)
00:10:46.00 -00:22:54.2 Neptune (7.7mag)
20:24:14.61 -23:43:27.9 Pluto (14.5mag)
10:06:03.23 +10:50:55.9 Moon (-9.2mag)
-rw-r--r-- 1 apache apache 362 Oct  7 09:42 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461320.62330947:
09:31:40.32 +15:17:37.1 Io (6.1mag)
09:31:32.07 +15:18:20.8 Europa (6.2mag)
09:31:27.36 +15:18:47.2 Ganymede (5.6mag)
09:31:20.33 +15:19:25.4 Callisto (6.9mag)
09:30:59.00 +15:39:39.5 Himalia (15.6mag)
09:31:34.93 +15:18:06.6 Thebe (16.5mag)
09:29:56.65 +15:38:51.2 Elara (17.5mag)
09:34:14.75 +14:40:58.3 Pasiphae (17.8mag)
09:30:27.83 +15:44:13.9 Carme (18.8mag)
00:43:46.01 +01:44:52.2 Titan (8.2mag)
00:43:42.31 +01:44:40.4 Rhea (9.6mag)
00:43:03.39 +01:42:06.6 Iapetus (11.0mag)
00:43:33.10 +01:45:02.1 Hyperion (14.1mag)
00:42:02.32 +01:32:29.7 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Oct  7 09:42 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461320.62330947:
02:20:36.96 +21:06:10.6 JWST
19:06:47.24 +05:37:08.0 Chandra
09:53:34.07 -55:07:59.2 XMM-Newton
-rw-r--r-- 1 apache apache 96 Oct  7 09:42 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461320.62330947 -observatory V36
03:47:07.11 +20:10:19.8 17.1mag P/1996 R2 (Lagerkvist)
18:21:02.17 -33:35:49.3 14.7mag P/2010 H2 (Vales)
07:37:58.20 -72:07:20.9 17.2mag C/2014 UN271 (Bernardinelli-Bernstein)
06:16:16.54 +34:31:35.7 17.7mag C/2017 K2 (PANSTARRS)
05:02:11.08 +48:19:37.5 16.9mag P/2021 N1 (ZTF)
07:28:24.29 +25:30:16.4 16.9mag C/2022 N2 (PANSTARRS)
08:59:47.10 +35:13:57.8 16.2mag C/2024 E1 (Wierzchos)
18:26:04.49 +41:43:23.6 17.4mag C/2024 J3 (ATLAS)
05:45:48.42 -13:31:51.5 16.6mag C/2024 T5 (ATLAS)
12:09:12.53 +16:20:47.3 16.3mag C/2025 V2 (Rankin)
13:46:43.54 -02:21:47.0 16.6mag C/2025 Y1 (ATLAS)
18:25:10.41 +66:49:16.0 16.0mag C/2026 A2 (Bok)
02:40:52.21 +43:51:57.0 17.8mag C/2026 B2 (Sun-Gao)
12:41:33.29 +13:50:34.9 17.7mag A/2026 E1
00:37:14.07 +19:32:39.4 17.7mag 2P/Encke
22:53:40.59 -32:35:17.6 14.3mag 10P/Tempel
02:04:48.62 +39:17:59.2 16.8mag 11P/Tempel-Swift-LINEAR
12:08:21.89 -07:48:56.3 16.3mag 29P/Schwassmann-Wachmann
00:25:12.91 -08:43:34.7 15.6mag 65P/Gunn
07:29:54.65 +16:27:50.9 13.8mag 78P/Gehrels
03:04:06.82 +14:31:59.0 17.6mag 88P/Howell
07:23:21.47 +38:59:41.1 17.1mag 112P/Urata-Niijima
08:52:29.34 +15:39:12.3 17.8mag 114P/Wiseman-Skiff
11:32:12.12 +14:14:13.2 14.8mag 123P/West-Hartley
13:56:04.71 -30:58:56.1 17.8mag 124P/Mrkos
06:47:39.50 +19:29:36.5 15.7mag 128P/Shoemaker-Holt
23:35:29.99 +00:25:03.8 17.2mag 139P/Vaisala-Oterma
22:19:33.94 -00:23:45.5 9.5mag 161P/Hartley-IRAS
10:09:48.56 +35:39:44.8 16.9mag 162P/Siding Spring
10:07:55.93 +02:41:29.8 13.9mag 169P/NEAT
03:31:17.95 +05:08:31.7 14.7mag 220P/McNaught
05:56:31.14 +44:15:50.3 15.3mag 260P/McNaught
07:20:36.67 +25:44:52.4 18.0mag 266P/Christensen
09:51:51.49 +31:53:43.8 18.0mag 493P/LONEOS
-rw-r--r-- 1 apache apache 1.7K Oct  7 09:42 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
08:07:27.96 -65:51:03.90  ASASSN-26fi  2026-10-1.36 15.82
21:02:34.66 +23:57:26.20  ASASSN-26fh  2026-10-1.27 15.94
20:00:16.62 +03:26:29.90  AT2026adfv  2026-10-1.3 16.42
00:08:42.74 -32:33:16.50  SN2026abhc  2026-09-29.15 15.57
21:02:30.26 -19:27:41.80  SN2026acxa  2026-09-29.13 14.65
04:39:17.45 -28:06:12.40  ASASSN-26fg  2026-09-23.25 15.73
05:25:07.80 +04:38:32.40  SN2026aajs  2026-09-21.32 17.04
19:56:12.67 +08:25:27.70  AT2026acgs  2026-09-18.14 15.84
00:02:34.07 +52:55:19.10  ASASSN-26ff  2026-09-16.43 15.37
23:44:33.18 +17:46:12.20  SN2026yjv  2026-09-15.38 18.32
16:21:12.24 +57:37:51.30  SN 2026aafh  2026-09-14.11 15.02
23:36:00.27 -19:28:18.00  SN 2026aaks  2026-09-14.44 16.89
16:35:24.86 -05:32:38.20  SN2026aasi  2026-09-12.99 16.58
16:46:08.71 +37:25:21.80  SN2026aafk  2026-09-13.25 17.4
23:48:37.86 +50:25:24.60  SN2026aafs  2026-09-13.47 17
21:20:27.02 +02:10:42.50  SN2026aagh   -------
08:02:26.85 -24:37:44.10  ASASSN-26fe  2026-09-13.34 13.67
02:29:34.91 +23:06:56.30  SN2026aars  2026-09-12.27 16.93
02:47:25.52 -32:58:34.50  SN 2026znh  2026-09-9.92 16.26
04:59:14.53 -83:27:58.80  ASASSN-26fd  2026-09-9.11 17.27
17:52:06.79 -23:43:20.70  ASASSN-26fc  2026-09-8.79 12.14
03:52:53.26 -14:19:28.70  SN 2026zfw  2026-09-8 17.78
01:53:26.46 +10:07:25.10  SN2026aacj  2026-09-7.17 16.27
20:04:34.47 +62:38:38.10  SN2026zji  2026-09-7.14 15.87
22:37:05.64 +34:24:35.00  SN2026aaiv  2026-09-7.25 13.48
22:24:21.29 -10:25:31.60  ASASSN-26fb  2026-09-5.3 13.93
00:44:54.28 +41:33:10.50  AT2026aabo  2026-09-3.29 15.02
00:52:12.40 -58:22:08.60  SN 2026zhl  2026-08-31.92 16.51
19:53:57.87 +61:00:19.70  ASASSN-26fa  2026-08-31.18 14.63
00:21:50.96 -09:29:16.30  AT2026zwp  2026-08-31.41 15.59
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.79 -22:25:29.10  V8055  2026-08-30 10.76
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
-rw-r--r-- 1 apache apache 5.7K Oct  7 09:42 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
00:42:12.76 +41:16:28.4  PNV J00421276+4116284  2026-09-10.9176  18.67Cmag
17:52:06.80 -23:43:20.7  TCP J17520680-2343207  2026-09-08.7896  12.6mag
00:42:40.94 +41:15:37.1  PNV J00424094+4115371  2026-09-17.8925  18.3mag
08:49:20.13 -09:19:15.8  TCP J08492013-0919158  2026-09-18.4698  13.3mag
00:42:13.93 +41:16:35.6  PNV J00421393+4116356  2026-09-22.6597  19.66Cmag
18:14:01.58 +15:13:55.5  TCP J18140158+1513555  2026-09-24.4645  14.1mag
00:42:36.61 +41:13:50.5  TCP J00423661+4113505  2026-09-29.7462  17.4mag
22:03:46.29 -11:07:57.8  TCP J22034629-1107578  2026-09-29.7438  14.51Cmag
22:05:02.06 +20:49:01.2  TCP J22050206+2049012  2026-10-03.5715  17.13Cmag
-rw-r--r-- 1 apache apache 191K Oct  7 09:42 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
05:02:52.706 -06:20:44.84  AT 2026acmr  2026-09-17.47 20.0414
07:57:22.784 +52:36:35.29  AT 2026acmq  2026-09-16.46 19.4468
06:30:56.944 -31:36:42.11  AT 2026acmp  2026-09-18.78 19.8
05:10:14.652 -25:53:20.15  AT 2026acmo  2026-09-17.77 20.23
03:26:20.881 +22:27:21.51  AT 2026acmn  2026-09-16.38 18.1297
01:21:22.899 +18:24:15.58  AT 2026acmm  2026-09-18.38 19.4129
02:59:47.145 +03:53:41.77  AT 2026acml  2026-09-20.40 19.7959
01:12:22.273 -08:29:32.90  AT 2026acmk  2026-09-14.32 20.4256
12:37:20.669 +41:36:44.25  AT 2026acmj  2026-04-14.94 19.81
09:35:04.931 -21:14:54.15  AT 2026acmi  2026-04-19.39 20.25
12:53:36.157 -17:01:48.97  AT 2026acmh  2026-04-16.49 20.22
10:50:24.066 -15:39:14.03  AT 2026acmg  2026-04-21.44 19.82
22:39:05.762 -19:39:55.66  AT 2026acmf  2026-09-20.42 19.79
16:10:59.860 +42:59:12.75  AT 2026acme  2026-09-16.63 20.51
00:16:07.120 +18:47:32.54  AT 2026acmd  2026-09-10.72 21.46
22:30:40.202 +13:00:30.35  AT 2026acmc  2026-09-10.71 21.46
23:31:53.580 +29:50:47.83  AT 2026acmb  2026-09-10.67 21.8
21:09:02.990 +15:01:07.86  AT 2026acma  2026-09-08.65 21.5
23:28:50.644 +22:53:43.23  AT 2026aclz  2026-09-03.67 20.54
22:18:34.118 +15:43:36.90  AT 2026acly  2026-08-31.60 21.23
-rw-r--r-- 1 apache apache 89K Oct  7 09:42 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Wed Oct  7 09:41:28 CDT 2026
=======================================
TIMING SExtractor: 7 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 2 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 10s (0.17 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 51s (0.85 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 17s (0.28 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: 6s (0.10 min)
    WCS_IMAGE_ARCHIVING: 1s (0.02 min)
    HTML_REPORT: 2s (0.03 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 88s (1.47 min)
TIMING SExtractor: 38 seconds
TIMING matching_and_photometry: 3 seconds
TIMING lightcurve_write: 8 seconds
TIMING select_aperture: 17 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 74s (1.23 min)
    WCS_CACHE_SETUP: 1s (0.02 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 2s (0.03 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 57s (0.95 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 1s (0.02 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 1s (0.02 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 1s (0.02 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 3s (0.05 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 140s (2.33 min)
FIELD_Ser-01-Q2b1x1: 252s (4.20 min)
=======================================
TOTAL_RUNTIME: 257s (4.28 min)
Finished: Wed Oct  7 09:45:45 CDT 2026