FITS images used in this processing run:

Field Dra-09-Q2b1x1 reference image: Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Field Dra-09-Q2b1x1 reference image: Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
Field Dra-09-Q2b1x1 second-epoch image: Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Field Dra-09-Q2b1x1 second-epoch image: Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461173.83300455 13.05.2026 07:59:21.593   /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
First image: 2461173.83300455 13.05.2026 07:59:21.593   /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Last  image: 2461290.71063721 07.09.2026 05:03:09.055   /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 1
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.37
Magnitude-Size filter: Disabled
For each source choose aperture with the smallest scatter: YES
Photometric errors rescaling: NO
Number of identified bad images: 0
Number of SysRem iterations: 0
User-specified moving object: none
Computation time: 3 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  10.0             # minimum number of pixels above threshold
DETECT_THRESH   10.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 10.0             #  or , in mag.arcsec-2
SATUR_LEVEL     55000.0         # level (in ADUs) at which arises saturation
GAIN            0.37            # detector gain in e-/ADU
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  6294
Objects passed selection criteria:  6261
Measurements per detected object (mean, median, min, max):    2.6    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.6    2.0    2    4
Average stars detected per image: 4304.75
Average stars matched: 4217.25 (97.9674 %)
Memory usage VmPeak:   233200 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Wed Sep  2 15:05:04 CDT 2026
VaST build number  1.0rc89-201-ga7d4d23b
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-09-02)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Mon Sep  7 00:06:03 CDT 2026
Host name: tau
############################################################
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Dra-09-Q2b1x1
#######################################
########### Starting Dra-09-Q2b1x1 ###########
Processing Dra-09-Q2b1x1
WARNING: server tau is low on disk space, only 40095 MB free at /data_ssd/NMW-TexasTech/workdir
WARNING: server tau is low on disk space, only 40095 MB free at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.png' -> 'transient_report/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits_preview.png'

Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits


renamed 'Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.png' -> 'transient_report/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits_preview.png'

Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.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= 385.2809
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 474.2397
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1307.0399
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 342.5870
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1339.9462
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 322.5758
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 3.39243
INFO:                  SECOND_EPOCH__SD_ratio= 0.062
INFO: the new-to-reference mean image value ratio check is disabled (DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK=yes) - expected with a background-subtracted reference image
----------------------------------------------
Calibration settings: DARK_FRAMES_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/darks FLAT_FIELD_DIR_OR_FILE=/var/www/nmw_calibration/TTUQ2b1x1/flats
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =                25.25 / [degC] Focuser temperature
AMBTEMP =                 26.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-07T00:02:08.3718787' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-07T05:02:08.3718787' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61290.2098191087 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-07T05:02:18.2746966' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =      61290.209933727 / 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      =     232.937886636604 / [deg] RA of telescope" status=0
Record 32: "DEC     =     53.9996288227789 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     28.4219444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     318.031944444444 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.09413279857827 / 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  = 'Dra-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '15 31 46'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+54 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20475 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20475 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =                25.25 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=                25.25 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 46.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                900.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 26.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                337.0 / [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 =             7.200576 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/d_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits :)

Spent 0.633279 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/d_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                 -0.0 / [degC] CCD temperature
FOCTEMP =     25.2099990844727 / [degC] Focuser temperature
AMBTEMP =                 26.5 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits 
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Header: 74 keys total, 33 keys left
Record 0: "" status=0
Record 1: "SIMPLE  =                    T / C# FITS" status=0
Record 2: "BITPIX  =                   16" status=0
Record 3: "NAXIS   =                    2 / Dimensionality" status=0
Record 4: "NAXIS1  =                 9576" status=0
Record 5: "NAXIS2  =                 6388" status=0
Record 6: "BZERO   =                32768" status=0
Record 7: "EXTEND  =                    T / Extensions are permitted" status=0
Record 8: "IMAGETYP= 'LIGHT'              / Type of exposure" status=0
Record 9: "EXPOSURE=                 20.0 / [s] Exposure duration" status=0
Record 10: "EXPTIME =                 20.0 / [s] Exposure duration" status=0
Record 11: "DATE-LOC= '2026-09-07T00:03:09.0555038' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-07T05:03:09.0555038' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61290.2105214698 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-07T05:03:18.9595596' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61290.2106360993 / 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      =     232.942061933057 / [deg] RA of telescope" status=0
Record 32: "DEC     =     53.9996201479569 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     28.2827777777778 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =             318.0875 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     2.10349738109549 / 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  = 'Dra-09'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '15 31 46'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+54 00 00'          / [D M S] Declination of imaged object" status=0
Record 48: "OBJCTROT=                  0.0 / [deg] planned rotation of imaged object" status=0
Record 49: "FOCNAME = 'ZWO Focuser'        / Focusing equipment name" status=0
Record 50: "FOCPOS  =                20475 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20475 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     25.2099990844727 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     25.2099990844727 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.9 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 46.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=                900.0 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 26.5 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                337.0 / [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 =             7.200576 / [kph] Wind speed" status=0
Record 62: "ROWORDER= 'TOP-DOWN'           / FITS Image Orientation" status=0
Record 63: "EQUINOX =               2000.0 / Equinox of celestial coordinate system" status=0
Record 64: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0
Record 65: "QHY_EXP =            20.000096 / [s] Actual exposure time" status=0
Record 66: "QHY_PP  =              13888.0 / [ps] pixelPeriod" status=0
Record 67: "QHY_LP  =              85000.0 / [ns] linePeriod" status=0
Record 68: "GPS_LP  =              85000.0 / [ns] linePeriod" status=0
Record 69: "QHY_FP  =           20000160.0 / [us] framePeriod" status=0
Record 70: "QHY_CPL =               6120.0 / clocksPerLine" status=0
Record 71: "QHY_LPF =             235295.0 / linesPerFrame" status=0
Record 72: "QHY_AET =           20000096.0 / [us] actualExposureTime" status=0
Record 73: "QHY_LEM =                    T / isLongExposureMode" status=0
Record 74: "QHY_OFF0=             3767.777 / [us] RollingShutterEndOffset row 0" status=0
Allocating memory for image, dark and result arrays...
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
SET-TEMP= 0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
CCD-TEMP= -0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
CCD-TEMP= -0.000000 for /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit
Reading dark frame /var/www/nmw_calibration/TTUQ2b1x1/darks/mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.fit 9576 6388  16 bitpix
Dark frame is subtracted, output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/d_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits :)

Spent 0.620855 seconds 
renamed 'mdark_TTUQ2b1x1_0C_20s_2026-08-12_multinight.png' -> 'transient_report/dark.png'
try_to_calibrate_the_input_frame(): selected flat field /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit from directory /var/www/nmw_calibration/TTUQ2b1x1/flats
MegaDivider v7
Reading image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/d_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits 9576 6388  16 bitpix
Reading flat /var/www/nmw_calibration/TTUQ2b1x1/flats/mff_TTUQ2b1x1_2026-08-12_multinight.fit 9576 6388  16 bitpix
Avarage count on flat field image: 37096.658242
Minimal real count (from overscan): 5
Output is written to /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits :)


No overscan detected - all values seem high! (left_median=24199.0, right_median=29433.0)
renamed 'mff_TTUQ2b1x1_2026-08-12_multinight.png' -> 'transient_report/flat.png'
Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Dark frame used to calibrate the second-epoch images:



Flat field used to calibrate the second-epoch images:



after the calibration attempt:
SECOND_EPOCH__FIRST_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Previews of the CALIBRATED second-epoch images:


fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits



fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.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/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
  
SExtractor catalog cache: saved Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.cat to cache
SExtractor catalog cache: saved Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.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/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Checking WCS cache directory local_wcs_cache
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
The reference JD(UT) for computing planet and comet positions: 2461290.70993485
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_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits exists and is non-empty
wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits exists and is non-empty
wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits exists and is non-empty
wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits (1st reference image)
verification OK: wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Image size: 937.4'x624.3'  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: 15:31:47.864 +54:00:02.13 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_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits (1st new image)
verification OK: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Image size: 937.5'x624.0'  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: 15:31:43.833 +53:59:48.40 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 15:31:47.864 +54:00:02.13
Second-epoch image center 15:31:43.833 +53:59:48.40
Angular distance between the image centers 0.0106 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits (2nd new image)
verification OK: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Image size: 937.6'x624.0'  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: 15:31:44.917 +54:00:25.07 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 15:31:47.864 +54:00:02.13
Second-epoch image center 15:31:44.917 +54:00:25.07
Angular distance between the image centers 0.0096 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  15:31:43.833 +53:59:48.40
Second-epoch second image center 15:31:44.917 +54:00:25.07
Angular distance between the image centers 0.01053 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/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits &> /tmp/tmp.I42exBPNJ0
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits &> /tmp/tmp.GhvxJzPdy8
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits &> /tmp/tmp.BNT04uJDkZ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits &> /tmp/tmp.6Jw8S4P4A3
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Calibrating the magnitude scale
Found non-empty wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.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_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits and wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.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_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits and wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat 
Found non-empty wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits and wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat
The reference image (wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits) and catalog (wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat) found
'wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat' -> 'wcsmag.cat'
Read 8363 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 218.1962 to 247.8655 deg, Dec +48.2431 to +59.2440 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 218.1962 to 247.8655 deg, Dec 48.2431 to 59.2440 deg
Loaded 6138 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): 4426 out of 4578 total matches.
Matched with Tycho-2 4578 out of 8363 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.754150
a=0.000000 b=1.000000 c=22.754150
From vast_summary.log: estimated ref. image limiting mag.:  -7.37
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.38

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.38

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 8363 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 218.1962 to 247.8655 deg, Dec +48.2431 to +59.2440 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 218.1962 to 247.8655 deg, Dec 48.2431 to 59.2440 deg
Loaded 6138 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): 4426 out of 4578 total matches.
Matched with Tycho-2 4578 out of 8363 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Forced-photometry filter: calibrated wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits -> calib.txt_param_ref_wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits (aperture=6.4)
Read 8357 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 218.1964 to 247.8654 deg, Dec +48.2430 to +59.2441 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 218.1964 to 247.8654 deg, Dec 48.2430 to 59.2441 deg
Loaded 6138 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): 4429 out of 4579 total matches.
Matched with Tycho-2 4579 out of 8357 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
Forced-photometry filter: calibrated wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits -> calib.txt_param_ref_wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits (aperture=6.4)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.3 pix  Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
 2.3 pix  Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
 2.2 pix  fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
 2.1 pix  fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Limiting magnitude estimates:
 15.4 mag.  Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
 15.4 mag.  Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
 14.6 mag.  fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
 14.5 mag.  fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
All-image limiting magnitude estimate:  14.5 (SNR )  11.4 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.I42exBPNJ0 (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_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits' -> 'wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.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/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
WCS_IMAGE_NAME=wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
WCS-calibrated image found: wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Checking if the catalog wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat corresponding to the image wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits alredy exist and is non-empty...
Catalog wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat corresponding to the image wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
WCS catalog name: wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.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=459, bad_region=1718, passed=8363
Got 8363 stars (including 6277 good ones) from the SExtractor catalog wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat 
util/solve_plate_with_UCAC5 got 8363 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 691 to 748 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 4864 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 4855 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 6967 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.27" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 691 to 748 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 4863 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 6967 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Accuracy estimation diagnostic: 4855 matched stars entering correct_measured_positions(), 6967 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4855 stars left (next iteration limit 5340)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits N_match=4855 sigma_overall_arcsec=0.324 sigma_q1_arcsec=0.288 sigma_q2_arcsec=0.323 sigma_q3_arcsec=0.372 sigma_q4_arcsec=0.340 n_q1=1712 n_q2=811 n_q3=1553 n_q4=779 worst_quadrant_to_overall_ratio=1.146
The image catalog is written to wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits -region wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.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.GhvxJzPdy8 (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_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits 571.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits' -> 'wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.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/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
WCS_IMAGE_NAME=wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
WCS-calibrated image found: wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
Checking if the catalog wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat corresponding to the image wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits alredy exist and is non-empty...
Catalog wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat corresponding to the image wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
WCS catalog name: wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.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=460, bad_region=1712, passed=8357
Got 8357 stars (including 6274 good ones) from the SExtractor catalog wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat 
util/solve_plate_with_UCAC5 got 8357 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.4'
Seting catalog search parameters based on the expected field of view 937.4 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013019 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010416 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 691 to 748 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4850 matched stars entering correct_measured_positions(), 4850 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.29" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4850 matched stars entering correct_measured_positions(), 6968 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.28" 

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 691 to 748 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 4858 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4849 matched stars entering correct_measured_positions(), 6968 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Accuracy estimation diagnostic: 4849 matched stars entering correct_measured_positions(), 6968 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.30" 
Excluding outliers - 4849 stars left (next iteration limit 5335)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits N_match=4849 sigma_overall_arcsec=0.331 sigma_q1_arcsec=0.287 sigma_q2_arcsec=0.338 sigma_q3_arcsec=0.378 sigma_q4_arcsec=0.324 n_q1=1711 n_q2=810 n_q3=1542 n_q4=786 worst_quadrant_to_overall_ratio=1.142
The image catalog is written to wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits -region wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.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.BNT04uJDkZ (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
WCS_IMAGE_NAME=wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
WCS-calibrated image found: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Checking if the catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits alredy exist and is non-empty...
Catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
WCS catalog name: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.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=132, bad_region=327, passed=2557
Got 2557 stars (including 2114 good ones) from the SExtractor catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat 
util/solve_plate_with_UCAC5 got 2557 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.5'
Seting catalog search parameters based on the expected field of view 937.5 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013021 (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 0.010417 (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 691 to 747 (Dec 48.2 to 59.1)
Done reading UCAC5 zone files...
Matched 2032 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2028 matched stars entering correct_measured_positions(), 2019 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 2028 matched stars entering correct_measured_positions(), 2238 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 691 to 747 (Dec 48.2 to 59.1)
Done reading UCAC5 zone files...
Matched 2031 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 2028 matched stars entering correct_measured_positions(), 2239 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Accuracy estimation diagnostic: 2028 matched stars entering correct_measured_positions(), 2239 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 2028 stars left (next iteration limit 2230)
Stop iterations.


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

SIP_REFIT: the 2028 catalog matches do not cover the frame (577/109/1084/258 per quadrant, need 126 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits N_match=2028 sigma_overall_arcsec=0.357 sigma_q1_arcsec=0.412 sigma_q2_arcsec=0.367 sigma_q3_arcsec=0.346 sigma_q4_arcsec=0.346 n_q1=577 n_q2=109 n_q3=1084 n_q4=258 worst_quadrant_to_overall_ratio=1.155
The image catalog is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits -region wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.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.6Jw8S4P4A3 (6) ############
Parsing command line arguments...
The minor axis of the CCD chip should be 24.0 mm based on the derived pixel size of 3.8 um
Internal estimated FoV 605.3'
The guess is based on the FOCALLEN keyword.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
WCS_IMAGE_NAME=wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
WCS-calibrated image found: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Checking if the catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits alredy exist and is non-empty...
Catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
WCS catalog name: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.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=114, bad_region=307, passed=2114
Got 2114 stars (including 1709 good ones) from the SExtractor catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat 
util/solve_plate_with_UCAC5 got 2114 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.6'
Seting catalog search parameters based on the expected field of view 937.6 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013022 (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 0.010418 (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 691 to 747 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 1646 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1645 matched stars entering correct_measured_positions(), 1637 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1645 matched stars entering correct_measured_positions(), 1811 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.37" 

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 691 to 747 (Dec 48.2 to 59.2)
Done reading UCAC5 zone files...
Matched 1646 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1645 matched stars entering correct_measured_positions(), 1811 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Accuracy estimation diagnostic: 1645 matched stars entering correct_measured_positions(), 1811 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.38" 
Excluding outliers - 1645 stars left (next iteration limit 1809)
Stop iterations.


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

SIP_REFIT: the 1645 catalog matches do not cover the frame (440/95/921/189 per quadrant, need 102 in each) - keeping the original solution
WCS_QUALITY_DIAG: file=fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits N_match=1645 sigma_overall_arcsec=0.427 sigma_q1_arcsec=0.440 sigma_q2_arcsec=0.399 sigma_q3_arcsec=0.434 sigma_q4_arcsec=0.366 n_q1=440 n_q2=95 n_q3=921 n_q4=189 worst_quadrant_to_overall_ratio=1.032
The image catalog is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits -region wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.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_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits to local_wcs_cache/
'wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits' -> 'local_wcs_cache/wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits'
Saving the final (post-refit) wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits to local_wcs_cache/
'wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits' -> 'local_wcs_cache/wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits'
Saving the final (post-refit) wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits to local_wcs_cache/
'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits' -> 'local_wcs_cache/wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits'
Saving the final (post-refit) wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits to local_wcs_cache/
'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits' -> 'local_wcs_cache/wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits sigma_overall=0.324 worst_q_ratio=1.146
ref2=Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits sigma_overall=0.331 worst_q_ratio=1.142
new1=fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits sigma_overall=0.357 worst_q_ratio=1.155
new2=fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits sigma_overall=0.427 worst_q_ratio=1.032
reference average sigma_overall=0.3275 worst_q_ratio=1.144
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313_astrometric_residuals.png (4855 matched stars from wcs_Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.28 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314_astrometric_residuals.png (4849 matched stars from wcs_Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.29 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183_astrometric_residuals.png (2028 matched stars from wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.33 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184_astrometric_residuals.png (1645 matched stars from wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.38 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits'
Saving fully-calibrated image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits'
Preparing the HTML report for the field Dra-09-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 0s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20341_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184
The candidate 20341_fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184 did not pass the final checks
Discovery image 2     2026 09 07.21064    2461290.71064    11.92    16:16:16.79 +51:36:40.9   0605 4353   /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits

**** FOUND  16:16:16.85 +51:36:40.2 in the exclusion list exclusion_list.txt ****
make_report_in_HTML.sh Phase 2 (HTML assembly): 0s
make_report_in_HTML.sh TOTAL: 0s
Prepared the HTML report for the field Dra-09-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/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
  
Last  image: 2461290.70993485 07.09.2026 05:02:08.371 UTC
WARNING: VaST exited with code 1 on the field Dra-09-Q2b1x1 as too few input images were matched to the reference image - wrong pointing? clouds? very bad focus?
Blind plate solve of the unmatched second-epoch image fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits to check the telescope pointing
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
It's not one of the telescopes that are know to produce images with good WCS solutions - will try to re-solve!
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
WCS_IMAGE_NAME=wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Field of view for the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits was not set. Trying to guess...
The guess is  605 arcmin.
No image with WCS calibration found for /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits .... Determining astrometry method...
Using the local copy of Astrometry.net software...
Choosing aperture...
Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/lib/make_outxyls_for_astrometric_calibration found 3055 high-SNR stars for plate solving
 
This service uses tools provided by Astrometry.net.
For more information visit http://astrometry.net/ 

######### Trying to solve plate assuming 605' field of view #########
 /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Using the local copy of Astrometry.net code
IMAGE_SIZE= --width 9576 --height 6388    SCALE_LOW=544.5 SCALE_HIGH=3025.0
Using solve-field binary
/usr/local/astrometry/bin/solve-field
Reading input file 1 of 1: "out851126.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out851126.axy"...
Field 1 did not solve (index index-4119.fits, field objects 1-10).
Field 1 did not solve (index index-4118.fits, field objects 1-10).
Field 1 did not solve (index index-4117.fits, field objects 1-10).
Field 1 did not solve (index index-4116.fits, field objects 1-10).
Field 1 did not solve (index index-4115.fits, field objects 1-10).
  log-odds ratio 47.1311 (2.94297e+20), 20 match, 0 conflict, 65 distractors, 87 index.
  RA,Dec = (232.961,53.9989), pixel scale 5.92875 arcsec/pix.
  Hit/miss:   Hit/miss: ++--++-----------+-----------+------+---++----------++--++---+--++-------+---+--+---+(best)---------------
Field 1: solved with index index-4114.fits.
Field 1 solved: writing to file ./out851126.solved to indicate this.
Field: out851126.xyls
Field center: (RA,Dec) = (232.937470, 53.997279) deg.
Field center: (RA H:M:S, Dec D:M:S) = (15:31:44.993, +53:59:50.205).
Field size: 15.7362 x 10.5293 degrees
Field rotation angle: up is 179.658 degrees E of N
Field parity: neg

Inserting WCS header...  '/data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits' -> 'fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits'
WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep  7 00:07 fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
-rw-r--r-- 1 apache apache  12K Sep  7 00:07 out851126.wcs
Inserting WCS header (1st iteration local)...  Opening FITS image file fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits for reading...  done!
Creating new image file (wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits)...  done!
done!
All done!
done
The WCS header appears to be added with no errors in /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits (fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits)
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration01'        / astrometry.net run
Reading input file 1 of 1: "out851126.xyls"...
Reading sort column "FLUX_APER"
Sorting sort column
mmapping input file
Copying table header.
Writing row 0
Done
Solving...
Reading file "./out851126.axy"...
Only searching for solutions within 15.6667 degrees of RA,Dec (232.936,53.9964)
Field 1 did not solve (index index-4116.fits, field objects 1-100).
  log-odds ratio 61.8264 (7.09322e+26), 12 match, 0 conflict, 28 distractors, 43 index.
  RA,Dec = (232.946,53.9942), pixel scale 5.94897 arcsec/pix.
  Hit/miss:   Hit/miss: -+--+--+-+---+-++--+----+--++----------+(best)-----------+------------------------------------------------
Field 1: solved with index index-4115.fits.
Field 1 solved: writing to file ./out851126.solved to indicate this.
Field: out851126.xyls
Field center: (RA,Dec) = (232.934436, 53.997414) deg.
Field center: (RA H:M:S, Dec D:M:S) = (15:31:44.265, +53:59:50.691).
Field size: 15.7136 x 10.5284 degrees
Field rotation angle: up is 179.666 degrees E of N
Field parity: neg

WCS keywords and Astrometry.net provenance markers have been successfully stripped from all HDUs in the file.
-rw-r--r-- 1 apache apache 117M Sep  7 00:07 fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
-rw-r--r-- 1 apache apache  12K Sep  7 00:07 out851126.wcs
Inserting WCS header (2nd iteration local)...  Opening FITS image file fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits for reading...  done!
Creating new image file (wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits)...  done!
done!
All done!
The WCS header appears to be added with no errors.
Keyword does not exist
Keyword has been changed to:
VAST001 = 'wcs_image_calibration.sh' / VaST script name
Keyword does not exist
Keyword has been changed to:
VAST002 = 'local   '           / ASTROMETRYNET_LOCAL_OR_REMOTE
Keyword does not exist
Keyword has been changed to:
VAST003 = 'local   '           / PLATE_SOLVE_SERVER
Keyword does not exist
Keyword has been changed to:
VAST004 = 'iteration02'        / astrometry.net run
The field of view is large: we'll try to run Astromety.net code on the image itself rather than a star list
Reading input file "wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits"...
Found an existing WCS header, will try to verify it.
Extracting sources...
simplexy: found 12647 sources.
Solving...
Reading file "./wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.axy"...
Verifying WCS using indices with quads of size [63.4577, 951.269] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 94.4327 (1.02706e+41), 12 match, 0 conflict, 166 distractors, 12 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: -------+--+---+-----+-----------------------+----+-+-----------------------+------------------------
 --> log-odds 94.4327
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 169.514 (4.15871e+73), 20 match, 0 conflict, 436 distractors, 20 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: ---+---+--+---++----+-+-----------------+---+----+-+-----------------------+------------------------
 --> log-odds 169.514
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 435.101 (9.16099e+188), 42 match, 0 conflict, 414 distractors, 43 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: --++-+++-++---++----+-++--+--+++-----+--++--++---+-++--++----------+-------+------------------------
 --> log-odds 435.101
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 924.414 (inf), 89 match, 0 conflict, 367 distractors, 91 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: --++-+++-++-+-++-++-+-+++-+--+++--++-+++++--++-+-+-++--+++--+++--+++-------++--+--+--++------+-----+
 --> log-odds 924.414
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1790.77 (inf), 184 match, 0 conflict, 1936 distractors, 187 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++-+++++++-++++-+++++++++--++++++-++++++++-+++-+++++----+++++++-+++-++++----++--+++
 --> log-odds 1790.77
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3469.69 (inf), 373 match, 0 conflict, 1955 distractors, 379 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: ++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++-+++++---++++++++++++-++++++++++-++++
 --> log-odds 3469.69
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 6170.81 (inf), 713 match, 0 conflict, 3006 distractors, 733 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++-+-+++++++++++++++++++++++-++++
 --> log-odds 6170.81
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 11212.6 (inf), 1396 match, 0 conflict, 4574 distractors, 1448 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++-+-+++++++++++++++++++++++-++++
 --> log-odds 11212.6
Verifying WCS using indices with quads of size [63.4577, 951.269] arcmin
Verifying WCS with index 87 of 109 (/usr/local/astrometry/data/index-4117.fits)
Verifying WCS of field 1.
  log-odds ratio 94.4327 (1.02706e+41), 12 match, 0 conflict, 166 distractors, 12 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: -------+--+---+-----+-----------------------+----+-+-----------------------+------------------------
 --> log-odds 94.4327
Verifying WCS with index 88 of 109 (/usr/local/astrometry/data/index-4116.fits)
Verifying WCS of field 1.
  log-odds ratio 169.514 (4.15871e+73), 20 match, 0 conflict, 436 distractors, 20 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: ---+---+--+---++----+-+-----------------+---+----+-+-----------------------+------------------------
 --> log-odds 169.514
Verifying WCS with index 89 of 109 (/usr/local/astrometry/data/index-4115.fits)
Verifying WCS of field 1.
  log-odds ratio 435.101 (9.16099e+188), 42 match, 0 conflict, 414 distractors, 43 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: --++-+++-++---++----+-++--+--+++-----+--++--++---+-++--++----------+-------+------------------------
 --> log-odds 435.101
Verifying WCS with index 90 of 109 (/usr/local/astrometry/data/index-4114.fits)
Verifying WCS of field 1.
  log-odds ratio 924.414 (inf), 89 match, 0 conflict, 367 distractors, 91 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: --++-+++-++-+-++-++-+-+++-+--+++--++-+++++--++-+-+-++--+++--+++--+++-------++--+--+--++------+-----+
 --> log-odds 924.414
Verifying WCS with index 91 of 109 (/usr/local/astrometry/data/index-4113.fits)
Verifying WCS of field 1.
  log-odds ratio 1790.77 (inf), 184 match, 0 conflict, 1936 distractors, 187 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++-+++++++-++++-+++++++++--++++++-++++++++-+++-+++++----+++++++-+++-++++----++--+++
 --> log-odds 1790.77
Verifying WCS with index 92 of 109 (/usr/local/astrometry/data/index-4112.fits)
Verifying WCS of field 1.
  log-odds ratio 3469.69 (inf), 373 match, 0 conflict, 1955 distractors, 379 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: ++++++++++++++++++++++++++++++++++++++++++-++++++++++++++++++++-+++++---++++++++++++-++++++++++-++++
 --> log-odds 3469.69
Verifying WCS with index 93 of 109 (/usr/local/astrometry/data/index-4111.fits)
Verifying WCS of field 1.
  log-odds ratio 6170.81 (inf), 713 match, 0 conflict, 3006 distractors, 733 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++-+-+++++++++++++++++++++++-++++
 --> log-odds 6170.81
Verifying WCS with index 94 of 109 (/usr/local/astrometry/data/index-4110.fits)
Verifying WCS of field 1.
  log-odds ratio 11212.6 (inf), 1396 match, 0 conflict, 4574 distractors, 1448 index.
  RA,Dec = (232.936,53.9982), pixel scale 5.96033 arcsec/pix.
  Hit/miss:   Hit/miss: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-+++++-+-+++++++++++++++++++++++-++++
 --> log-odds 11212.6
Got 16 solutions.
Field: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Field center: (RA,Dec) = (232.934036, 53.997611) deg.
Field center: (RA H:M:S, Dec D:M:S) = (15:31:44.169, +53:59:51.398).
Field size: 15.7146 x 10.5284 degrees
Field rotation angle: up is 179.66 degrees E of N
Field parity: neg
Creating new FITS file "./wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.new"...

renamed 'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.new' -> 'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits'
Checking if the catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits alredy exist and is non-empty...
Catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits was not found.
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
verification OK: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Generating wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat from image00003.cat
Catalog wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat corresponding to the image wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits created.
verification OK: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
verification OK: wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Image size: 937.5'x624.0'  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: 15:31:43.833 +53:59:48.40 J2000 4789.000 3195.000 

 ### Converting SExtractor-derived pixel positions to celestial coordinates using xy2sky from WCSTools ###
 ### Converted positions of 16640 stars ###
'wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits.wcscat' -> 'vast_debug_catalog_before_xy2sky_correction.cat.log'
'/data_ssd/NMW-TexasTech/workdir/vast_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/correct_sextractor_wcs_catalog_usingxy2sky932252.tmp' -> 'vast_debug_catalog_after_xy2sky_correction.cat.log'
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
###################################
# Check the image center offset between the reference and the blindly solved unmatched second-epoch image (pointing accuracy)
Reference image center 15:31:47.864 +54:00:02.13
Second-epoch image center 15:31:43.833 +53:59:48.40
Angular distance between the image centers 0.0106 deg.
###################################
The second-epoch image center is consistent with the reference image center (offset 0.0106 deg.) - the star matching failure is probably not a pointing problem
____ VaST output ____

--==VaST 1.0rc90==--

Parsing command line arguments...
opt 'F': Will NOT create flag images for SExtractor
opt '5': 5.000000 pix is the new fixed star matching radius!
opt 'b': Using 500 reference stars for image matching!
opt '3': Will try to select best aperture for each source!
opt 'y': 0 SysRem iterations will be conducted!
opt 't 4': robust linear magnitude calibration (vary zero-point and slope)
opt 'x': 99 is the maximum acceptable SExtractor flag!
WARNING: disabling the mag-size filter in order not to reject blended stars.
opt 'u': Stick with UTC time system, no conversion to TT will be done!
opt 'f': Run ./find_candidates manually!
opt 'k': "JD" keyword in FITS image header will be ignored!
INFO from vast_remove_directory(): Could not open directory: symlinks_to_images
INFO from vast_remove_directory(): Could not open directory: converted_images
INFO from vast_remove_directory(): Could not open directory: unpacked_images

Checking the list of input images specified on the command line ...

Looking for the list of input images with time corrections in vast_list_of_input_images_with_time_corrections.txt ... list not found.
This is OK if you specify the input images on the command line, not through this text file.
Checking write permissions for the current directory (/data_ssd/NMW-TexasTech/workdir/vast_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc)...  OK
Found a system-wide installation of SExtractor
Cleaning old outNNNNN.dat files.
Done with cleaning!

 VaST was started with the following command line: 
./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits 


Preparing to process 4 input FITS images...


######## Forcing special settings for the transient detection ########
transient search mode: disabling the mag-size filter as it should be switched off when running a transient search!
transient search mode: disabling the bad image filter as it will not help during the transient search!
transient search mode: will not try to gues image saturation limit
transient search mode: no UTC-to-TT time system conversion will be performed!!!
transient search mode: setting the maximum acceptable SExtractor flag to 3
transient search mode: disabling rejectin of images with elliptical stars
transient search mode: not discarding large sources
################
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).
Setting the fixed star match radius of 5.00 pix
We have 4 images to process.
SExtractor catalog cache: restored Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits catalog from cache
SExtractor catalog cache: restored Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits catalog from cache
Running SExtractor in 3 parallel threads...
Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Using the catalog image00002.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
The above guess is based on the non-default gain value specified in default.sex by user
Parent process says: we are done fork()ing.
Waiting for thread 2 to finish...
autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
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).
The gain value (GAIN=0.830) from default.sex will be used for image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
The above guess is basex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00003.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits > image00003.cat.sex_log 2>&1sed on the non-default gain value specified in default.sex by user

autodetect_aperture() is running SExtractor on /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
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).
autodetect_aperture() is doing a preliminary SExtractor run to determine an appropriate aperture size
sex -c default.sex  -PARAMETERS_NAME autodetect_aper.param -CATALOG_NAME autodetect_aper_image00004.cat  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.6,4.6,4.1,5.0,5.5,6.0 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00004.cat /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits > image00004.cat.sex_log 2>&1
autodetect_aperture() is doing the main SExtractor run
sex  -PARAMETERS_NAME default.param -PHOT_APERTURES 4.7,4.7,4.2,5.2,5.7,6.1 -VERBOSE_TYPE NORMAL -CATALOG_NAME image00003.cat /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits > image00003.cat.sex_log 2>&1
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Waiting for thread 1 to finish...
autodetect_aperture() is done with image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits


Done with SExtractor!

TIMING SExtractor: 7 seconds


Matching stars between images!

No manually selected comparison stars file manually_selected_comparison_stars.lst which is fine.
Processing  /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-05-13T07:59:21.5931170
Setting observation time using DATE-OBS keyword: 2026-05-13T07:59:21.5931170

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-05-13T07:59:21.593
EXPTIME = 20.000

Using the catalog image00001.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
Exposure 20 sec, 13.05.2026 07:59:21.593 UTC = JD(UTC) 2461173.83300455 mid. exp.
The reference image star  9525.762    49.573 is rejected, see bad_region.lst
The reference image star  9193.144    20.407 is rejected, see bad_region.lst
The reference image star  8784.364    15.433 is rejected, see bad_region.lst
The reference image star  8913.280     9.094 is rejected, see bad_region.lst
The reference image star  8391.933    15.133 is rejected, see bad_region.lst
The reference image star  8215.707    10.577 is rejected, see bad_region.lst
The reference image star  9228.947    10.812 is rejected, see bad_region.lst
The reference image star  7835.493    10.181 is rejected, see bad_region.lst
The reference image star  8498.752     9.313 is rejected, see bad_region.lst
The reference image star  9448.400     8.966 is rejected, see bad_region.lst
Excluding more reference image stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 36162, (36161 good for image matching)
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 23
 * rejected inside rectangles defined in bad_region.lst: 6928
 * rejected close to frame edge: 170
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.9 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 82
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.

Please note: the CCD position-dependent magnitude correction will be applied.
get_detection_limit_sn(): Detection limit: -7.08
Detection limit from the magnitude-SNR relation= -7.1  (5.0 sigma detection)
The simple faintest star detection limit= -6.4
80 percent brightest stars detection limit= -7.6
Selected detection limit= -7.6
Final detection limit= -7.6 (after subtracting MAG_TRANSIENT_ABOVE_THE_REFERENCE_FRAME_LIMIT=0.0)

Parameter box for transient search:    10.04.9 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 94
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    36281 * detected, using  501/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.014002, number_of_ambiguous_matches=508 
refining the coordinate transformation... [CVPOLY iter 1: order=1 pairs=33644 inliers=33644 rms 0.43 -> 0.43 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.013230, number_of_ambiguous_matches=480 
33644 * matched, [CVPOLY iter 2: order=1 pairs=33644 inliers=33644 rms 0.42 -> 0.42 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.007718, number_of_ambiguous_matches=280 
33627 * matched (2nd iteration). [CVPOLY iter 3: order=1 pairs=33627 inliers=33627 rms 0.36 -> 0.36 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.003225, number_of_ambiguous_matches=117 
33612 * matched (3rd iteration). Success!
  rotation [degrees] =   0.006
    36281 stars detected, 33612 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 32049, N_manually_selected_comparison_stars = 0
Using 32049 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 32043 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00000*X_pix +0.00000*Y_pix -0.00470
Iteratively removing outliers from the mag-mag relation (weighted linear/polynomial fit)...
Computing robust linear magnitude calibration.
Used 30408 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.08
    38831 objects stored in memory (1000000 max.)
Magnitude calibration is performed successfully!
Saving observations to the cache... OK
memory:  226176 kB used, 259248 kB peak, 65263848 kB available RAM
processed 2 of 4 images ( 50.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-09-07T05:02:08.3718787
Setting observation time using DATE-OBS keyword: 2026-09-07T05:02:08.3718787

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-09-07T05:02:08.371
EXPTIME = 20.000

Using the catalog image00003.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
The star  8594.530    27.659 is rejected, see bad_region.lst
The star  7936.072    38.530 is rejected, see bad_region.lst
The star  8585.142    46.306 is rejected, see bad_region.lst
The star  8919.965    55.005 is rejected, see bad_region.lst
The star  8402.821    72.871 is rejected, see bad_region.lst
The star  7631.786    85.400 is rejected, see bad_region.lst
The star  7907.667   152.290 is rejected, see bad_region.lst
The star  7949.896   167.174 is rejected, see bad_region.lst
The star  7646.893   221.883 is rejected, see bad_region.lst
The star  9343.032   217.986 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 15196
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 1
 * rejected inside rectangles defined in bad_region.lst: 1319
 * rejected close to frame edge: 85
 * rejected as being too small (<1.2 pix): 0
 * rejected as being too large (>4.7 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 39
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    15196 * detected, using  210/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000644, number_of_ambiguous_matches=25 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=14953 inliers=14953 rms 0.44 -> 0.36 pix, max corner correction 1.4 pix] fraction_of_ambiguous_matches= 0.000670, number_of_ambiguous_matches=26 
14953 * matched, [CVPOLY iter 2: order=1 pairs=14953 inliers=14953 rms 0.36 -> 0.36 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000386, number_of_ambiguous_matches=15 
14942 * matched (2nd iteration). [CVPOLY iter 3: order=3 pairs=14942 inliers=14942 rms 0.24 -> 0.24 pix, max corner correction 1.1 pix] fraction_of_ambiguous_matches= 0.000206, number_of_ambiguous_matches=8 
14936 * matched (3rd iteration). Success!
  rotation [degrees] =   1.045
    15196 stars detected, 14936 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 13936, N_manually_selected_comparison_stars = 0
Using 13936 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 10975 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00010*X_pix -0.00011*Y_pix +0.24662
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 10975 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.43
 ERROR!!! Magnitude calibration failure. Dropping image. 
    38831 objects stored in memory (1000000 max.)
memory:  220416 kB used, 259248 kB peak, 65263848 kB available RAM
processed 3 of 4 images ( 75.0%)



Processing  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
9576x6388 FITS image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
Trying to guess the time system by parsing the comment string 'Time of observation (UTC)'
Time system set from the comment to DATE-OBS keyword: 'Time of observation (UTC)'
The input time system is identified as: UTC (blank if unknown)
Setting observation date using DATE-OBS keyword: 2026-09-07T05:03:09.0555038
Setting observation time using DATE-OBS keyword: 2026-09-07T05:03:09.0555038

Observing time converted to the "standard" FITS header format:
DATE-OBS= 2026-09-07T05:03:09.055
EXPTIME = 20.000

Using the catalog image00004.cat SExtracted earlier from the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
The star  8919.992    54.996 is rejected, see bad_region.lst
The star  8403.949    78.498 is rejected, see bad_region.lst
The star  7908.734   157.730 is rejected, see bad_region.lst
The star  9343.011   218.029 is rejected, see bad_region.lst
The star  7648.139   227.529 is rejected, see bad_region.lst
The star  8149.158   232.997 is rejected, see bad_region.lst
The star  8889.043   242.850 is rejected, see bad_region.lst
The star  7988.949   268.505 is rejected, see bad_region.lst
The star  8003.093   370.154 is rejected, see bad_region.lst
The star  8004.987   370.732 is rejected, see bad_region.lst
Excluding more stars falling at bad regions!.. (will not print them all)
SExtractor output filtering results:
 * passed selection: 12590
 * rejected as having no flux measurement: 0
 * rejected as having SNR<3.0: 3
 * rejected inside rectangles defined in bad_region.lst: 1217
 * rejected close to frame edge: 89
 * rejected as being too small (<1.1 pix): 0
 * rejected as being too large (>4.6 pix): 0
 * rejected as outliers in mag-size plot: 0
 * rejected as having SExtractor flags > 99 and <= 7: 0
 * rejected as having hopelessly bad SExtractor flags (>7): 29
 * rejected due to an external image flag: 0
 * rejected as having bad PSF fit: 0
---
You may change some of the filtering parameters by editing src/vast_limits.h and re-running 'make'.
    12590 * detected, using  174/ 500 * for reference/current image matching, fraction_of_ambiguous_matches= 0.000592, number_of_ambiguous_matches=23 
refining the coordinate transformation... [CVPOLY iter 1: order=2 pairs=12335 inliers=12335 rms 0.45 -> 0.38 pix, max corner correction 1.5 pix] fraction_of_ambiguous_matches= 0.000592, number_of_ambiguous_matches=23 
12335 * matched, [CVPOLY iter 2: order=1 pairs=12335 inliers=12335 rms 0.38 -> 0.38 pix, max corner correction 0.0 pix] fraction_of_ambiguous_matches= 0.000386, number_of_ambiguous_matches=15 
12324 * matched (2nd iteration). [CVPOLY iter 3: order=3 pairs=12324 inliers=12324 rms 0.27 -> 0.27 pix, max corner correction 0.9 pix] fraction_of_ambiguous_matches= 0.000180, number_of_ambiguous_matches=7 
12317 * matched (3rd iteration). Success!
  rotation [degrees] =   1.056
    12590 stars detected, 12317 stars matched
Performing magnitude calibration using automatically selected comparison stars
Expecting to find at least 40 * for magnitude calibration
We have N_good_stars = 11432, N_manually_selected_comparison_stars = 0
Using 11432 stars for magnitude calibration (before filtering).
Iteratively removing outliers from the linear mag-mag relation (unweighted fit)...
After removing outliers in (X,Y,dm) plane, we are left with 7784 stars for magnitude calibration.
Using the linear CCD position-dependent magnitude correction:
 delta_m = 0.00011*X_pix -0.00015*Y_pix +0.43868
ERROR in magnitude calibration: fabs(lin_mag_A * X_im_size + lin_mag_C) > MAX_LIN_CORR_MAG
Used 7784 stars for magnitude calibration (after filtering).
get_detection_limit_sn(): Detection limit: -7.44
 ERROR!!! Magnitude calibration failure. Dropping image. 
    38831 objects stored in memory (1000000 max.)
memory:  220416 kB used, 259248 kB peak, 65263848 kB available RAM
processed 4 of 4 images (100.0%)
TIMING matching_and_photometry: 1 seconds
Done with measurements! =)

Total number of measurements 72443 (72443 measurements stored in RAM)
Freeing up some memory...  Sorting the measurements cached in memory...
Writing lightcurve (outNNNNN.dat) files...
TIMING lightcurve_write: 2 seconds
The lightcurve files have been written, freeing up more memory...
Creating vast_image_details.log ... 

Writing summary file: vast_summary.log ...  OK
Selecting the best aperture for each source
Aperture with index 0 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for  6016 stars
Aperture with index 1 (REFERENCE_APERTURE_DIAMETER +0.00*REFERENCE_APERTURE_DIAMETER) seems best for     0 stars
Aperture with index 2 (REFERENCE_APERTURE_DIAMETER -0.10*REFERENCE_APERTURE_DIAMETER) seems best for  9581 stars
Aperture with index 3 (REFERENCE_APERTURE_DIAMETER +0.10*REFERENCE_APERTURE_DIAMETER) seems best for  5795 stars
Aperture with index 4 (REFERENCE_APERTURE_DIAMETER +0.20*REFERENCE_APERTURE_DIAMETER) seems best for  4154 stars
Aperture with index 5 (REFERENCE_APERTURE_DIAMETER +0.30*REFERENCE_APERTURE_DIAMETER) seems best for  8066 stars

done!  =)
TIMING select_aperture: 2 seconds
Computing lightcurve statistics...  Will not compute variability indexes for objects having <1 points in lightcurve
You may disable this by commenting out the line '#define DROP_LIGHTCURVES_WITH_SMALL_NUMBER_OF_POINTS_FROM_ALL_PLOTS' in src/vast_limits.h an re-compiling VaST with 'make'

Computing, please wait a bit
..............................................................................................................................................................................................................................................................................................................................................
vast_lightcurve_statistics.log: 33438 objects, the longest string is 383 bytes.
Allocating memory for resorting the file.



----***** VaST processing WARNING *****----
You asked VaST to process 4 images, but only 1 were actually matched to the reference one.
Please investigate this!



**************************************************************
This error might be a bug, but it is far more likely that it is caused by 
inappropriate input data. A few simple things to check in the diagnostic
messages printed above (or the vast*.log files):
 * How many of the input images are matched?
 * Does the number of detected stars on each image look reasonable?
 * Do images have a sufficient overlap of at least about 20 percent?

You may run
 ./sextract_single_image /path/to/my/image/file.fit
to see how well VaST detects stars with the current SExtractor settings
(star detection settings can be changed in the default.sex configuration
file, see various examples in the VaST directory).

If you cannot identify the problem, please e-mail Kirill Sokolovsky 
Please try to describe the problem in details and, if possible, attach vast_summary.log
file and a few example images. If the images are too big to be sent by e-mail, please 
upload them through a web-form http://scan.sai.msu.ru/upload/
**************************************************************

Low percentage of matched images - we'll declare this an unsuccessful VaST run (exit code 1)
_____________________
ERROR running VaST on the field Dra-09-Q2b1x1 (less than 4 images processed)
exp_start= 13.05.2026 07:59:21.593  exp=   20.000  JD= 2461173.83300455  ap=  4.9  rotation=   0.000  *detected= 36162  *matched= 36162  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_02-59-21_20.00sec_-0.00C_LIGHT_0313.fits
exp_start= 13.05.2026 08:00:01.006  exp=   20.000  JD= 2461173.83346072  ap=  4.9  rotation=   0.006  *detected= 36281  *matched= 33612  status=OK     /data_ssd/NMW-TexasTech/reference_imgs/Dra-09-Q2b1x1_2026-05-13_03-00-01_20.00sec_0.00C_LIGHT_0314.fits
exp_start= 07.09.2026 05:02:08.371  exp=   20.000  JD= 2461290.70993485  ap=  4.7  rotation=   1.045  *detected= 15196  *matched= 14936  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-02-08_20.00sec_-0.00C_LIGHT_0183.fits
exp_start= 07.09.2026 05:03:09.055  exp=   20.000  JD= 2461290.71063721  ap=  4.6  rotation=   1.056  *detected= 12590  *matched= 12317  status=ERROR  /data_ssd/NMW-TexasTech/workdir//img_2026-09-07_CI_Dra-09-Q2b1x1_000341_TTUQ2b1x1_578757_XQdcuJxc/fd_Dra-09-Q2b1x1_2026-09-07_00-03-09_20.00sec_-0.00C_LIGHT_0184.fits
########### Completed Dra-09-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)2461290.70993485 -observatory V36
11:38:21.38 +03:31:37.2 Mercury (-0.9mag)
13:35:50.89 -14:29:12.0 Venus (-4.7mag)
07:13:45.35 +22:59:12.5 Mars (1.2mag)
09:08:58.73 +16:57:50.8 Jupiter (-1.8mag)
00:51:45.21 +02:38:46.3 Saturn (0.4mag)
04:13:41.23 +21:01:59.2 Uranus (5.7mag)
00:13:45.30 -00:03:10.3 Neptune (7.7mag)
20:25:35.96 -23:39:35.9 Pluto (14.5mag)
07:41:16.41 +23:51:41.5 Moon (-9.4mag)
-rw-r--r-- 1 apache apache 362 Sep  7 00:06 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461290.70993485:
09:09:03.88 +16:57:25.7 Io (6.2mag)
09:08:55.86 +16:58:06.2 Europa (6.3mag)
09:09:09.12 +16:56:58.5 Ganymede (5.7mag)
09:08:33.87 +16:59:53.4 Callisto (6.9mag)
09:06:44.80 +17:14:20.7 Himalia (15.7mag)
09:09:02.06 +16:57:35.5 Thebe (16.6mag)
09:06:22.10 +17:08:19.8 Elara (17.7mag)
09:12:52.49 +16:25:26.9 Pasiphae (17.9mag)
09:10:04.16 +17:15:36.0 Carme (19.0mag)
00:51:41.61 +02:39:09.7 Titan (8.3mag)
00:51:38.56 +02:38:41.1 Rhea (9.6mag)
00:52:00.65 +02:41:17.6 Iapetus (11.0mag)
00:51:59.22 +02:38:12.6 Hyperion (14.3mag)
00:50:32.07 +02:28:31.0 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  7 00:06 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461290.70993485:
22:04:10.91 +00:54:54.3 JWST
17:33:05.04 +36:38:20.1 Chandra
09:59:25.62 -55:44:35.9 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  7 00:06 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461290.70993485 -observatory V36
03:40:22.41 +19:20:10.4 17.4mag P/1996 R2 (Lagerkvist)
18:02:52.76 -34:12:47.0 14.3mag P/2010 H2 (Vales)
07:19:24.31 -70:17:48.1 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:15:40.98 +33:41:52.9 17.7mag C/2017 K2 (PANSTARRS)
04:51:17.97 +45:27:52.7 15.8mag P/2021 N1 (ZTF)
04:51:17.97 +45:27:52.7 15.8mag P/2021 N1 (ZTF)
04:51:17.97 +45:27:52.7 15.8mag P/2021 N1 (ZTF)
04:51:17.97 +45:27:52.7 15.8mag P/2021 N1 (ZTF)
04:51:17.97 +45:27:52.7 15.8mag P/2021 N1 (ZTF)
22:13:33.31 +28:40:51.8 17.4mag C/2022 E2 (ATLAS)
07:10:07.61 +25:58:49.5 16.9mag C/2022 N2 (PANSTARRS)
10:49:25.02 +27:13:45.0 17.1mag C/2022 QE78 (ATLAS)
09:48:36.88 +05:14:00.7 18.0mag C/2022 R6 (PANSTARRS)
15:29:33.41 -15:38:30.0 14.8mag C/2023 R1 (PANSTARRS)
08:38:18.97 +32:53:12.7 15.8mag C/2024 E1 (Wierzchos)
15:06:34.96 +15:19:26.6 17.9mag C/2024 G6 (ATLAS)
18:33:39.79 +43:10:42.4 13.7mag C/2024 J3 (ATLAS)
20:26:17.33 +49:18:23.2 17.4mag C/2024 R4 (PANSTARRS)
05:35:33.72 -13:01:31.1 15.1mag C/2024 T5 (ATLAS)
07:11:36.06 +18:33:38.8 17.8mag C/2025 J1 (Borisov)
11:17:50.42 +18:46:33.2 16.8mag C/2025 V2 (Rankin)
13:19:33.15 +00:07:23.9 16.8mag C/2025 Y1 (ATLAS)
16:41:09.20 +74:02:56.9 16.1mag C/2026 A2 (Bok)
03:05:50.38 +46:08:15.8 17.4mag C/2026 B2 (Sun-Gao)
12:13:11.43 +11:16:33.1 17.5mag A/2026 E1
22:25:56.45 -35:02:07.8 13.4mag 10P/Tempel
01:19:21.42 +37:00:50.5 17.9mag 11P/Tempel-Swift-LINEAR
11:48:06.75 -05:27:42.0 16.3mag 29P/Schwassmann-Wachmann
12:08:23.63 -05:04:02.2 17.6mag 63P/Wild
00:44:43.05 -07:03:50.4 15.4mag 65P/Gunn
06:39:09.84 +19:15:31.3 17.1mag 78P/Gehrels
03:17:16.66 +14:59:50.0 16.7mag 88P/Howell
05:37:56.00 +28:35:51.3 17.5mag 112P/Urata-Niijima
07:31:32.61 +24:50:19.1 17.9mag 114P/Wiseman-Skiff
10:27:41.90 +20:53:10.3 14.8mag 123P/West-Hartley
12:46:24.38 -21:18:30.3 17.4mag 124P/Mrkos
06:17:18.72 +20:38:30.6 15.9mag 128P/Shoemaker-Holt
02:32:33.52 -17:37:20.2 15.2mag 161P/Hartley-IRAS
09:37:45.07 +13:47:43.1 12.1mag 169P/NEAT
03:24:22.25 +08:28:55.7 14.5mag 220P/McNaught
04:47:50.36 +36:17:35.7 15.2mag 260P/McNaught
08:31:38.64 +35:42:37.1 17.3mag 295P/LINEAR
15:25:10.65 -00:14:21.5 17.9mag 391P/Kowalski
09:27:42.62 +16:51:17.2 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.2K Sep  7 00:06 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
19:45:06.20 +18:22:48.80  V488  2026-08-30.13 9.37
18:25:12.74 -22:25:28.60  V8055  2026-08-30.22 10.89
17:17:45.96 +64:31:40.10  ASASSN-26ez  2026-08-25.13 10.87
19:02:47.09 +58:08:21.00  AT2026zwo  2026-08-24.16 15.78
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.89 +49:28:51.30  SN2026wjs  2026-08-9.24 17.09
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:33.11 -68:48:32.90  ASASSN-26no  2026-05-24.03 8.35
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.59 -58:37:47.40  ASASSN-26dn  2026-05-20.01 14.59
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
-rw-r--r-- 1 apache apache 5.7K Sep  7 00:06 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
00:42:50.38 +41:18:58.76  PNV J00425038+4118587  2026-09-04.1512  18.2mag
-rw-r--r-- 1 apache apache 190K Sep  7 00:06 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
00:34:06.502 +12:42:13.91  AT 2026ypz  2026-08-08.10 20
21:30:05.008 +02:38:33.95  AT 2026ypy  2026-08-06.53 20.21
21:00:04.179 -04:29:11.16  AT 2026ypx  2026-08-10.99 20.06
02:37:12.256 +15:20:39.63  AT 2026ypw  2026-08-12.19 20.13
20:30:21.422 +77:41:45.40  AT 2026ypv  2026-08-02.23 20.4969
13:32:08.201 +00:21:43.54  AT 2026ypu  2026-08-05.16 19.6868
14:07:14.862 +00:31:05.95  AT 2026ypt  2026-08-08.16 20.0684
17:39:38.555 +44:15:43.22  AT 2026yps  2026-07-22.33 20.9161
23:51:42.078 +03:04:27.33  AT 2026ypr  2026-08-12.07 20.05
02:34:15.880 +40:31:56.36  AT 2026ypq  2026-08-11.58 18.82
15:38:07.902 +06:01:37.84  AT 2026ypp  2026-08-11.26 20.34
15:24:17.953 +11:26:31.29  AT 2026ypo  2026-08-11.26 20.8
14:21:16.003 +25:15:33.98  AT 2026ypn  2026-08-11.26 18.72
16:23:56.085 +09:36:23.21  AT 2026ypm  2026-08-11.28 20.97
20:54:11.595 +10:54:51.15  SN 2026ypl  2026-08-09.34 20.4
00:40:25.122 +24:26:45.82  AT 2026ypk  2026-08-07.45 20.4501
17:05:06.872 +77:16:36.60  AT 2026ypj  2026-08-11.31 18.807
20:49:46.878 -06:36:38.40  AT 2026ypi  2026-08-09.29 20.4359
00:12:21.150 -17:28:55.44  AT 2026yph  2026-08-08.42 20.4034
00:48:58.972 +17:28:17.78  AT 2026ypg  2026-08-05.48 20.2336
-rw-r--r-- 1 apache apache 88K Sep  7 00:06 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Mon Sep  7 00:05:43 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 0 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 4s (0.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 31s (0.52 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 8s (0.13 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: 4s (0.07 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 48s (0.80 min)
TIMING SExtractor: 7 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 2 seconds
TIMING select_aperture: 2 seconds
FIELD_Dra-09-Q2b1x1: 105s (1.75 min)
=======================================
TOTAL_RUNTIME: 107s (1.78 min)
Finished: Mon Sep  7 00:07:30 CDT 2026