FITS images used in this processing run:

Field Cas-01-Q2b1x1 reference image: Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Field Cas-01-Q2b1x1 reference image: Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Field Cas-01-Q2b1x1 second-epoch image: Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Field Cas-01-Q2b1x1 second-epoch image: Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461083.62488818 12.02.2026 02:59:40.339   /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
First image: 2461083.62488818 12.02.2026 02:59:40.339   /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Last  image: 2461284.94389537 01.09.2026 10:39:02.560   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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.:  -7.59
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: 4 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):  10949
Objects passed selection criteria:  10866
Measurements per detected object (mean, median, min, max):    2.3    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.3    2.0    2    4
Average stars detected per image: 6682
Average stars matched: 6462.25 (96.7113 %)
Memory usage VmPeak:   238240 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Sep  1 05:50:05 CDT 2026
Host name: tau
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 4
Ref.  image: 2461083.62488818 12.02.2026 02:59:40.339   /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
First image: 2461083.62488818 12.02.2026 02:59:40.339   /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Last  image: 2461284.94389537 01.09.2026 10:39:02.560   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
JD time system (TT/UTC/UNKNOWN): UTC
Transient candidates found: 19
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.22
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: 20 seconds
Number of parallel threads: 3
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   3.0             #  or , in mag.arcsec-2
ANALYSIS_THRESH 3.0             #  or , in mag.arcsec-2
SATUR_LEVEL     57000.0         # level (in ADUs) at which arises saturation
GAIN            0.83            # detector gain in e-/ADU
WEIGHT_TYPE BACKGROUND
VAST_SKIP_INDEX_VS_MAG is set - skipping the lib/index_vs_mag variability-index fitting
Total objects detected (at least 2 times):  85764
Objects passed selection criteria:  85521
Measurements per detected object (mean, median, min, max):    2.5    2.0    2    4
Measurements per selected object (mean, median, min, max):    2.5    2.0    2    4
Average stars detected per image: 57101.2
Average stars matched: 54624.8 (95.663 %)
Memory usage VmPeak:   500528 kB
Software: VaST 1.0rc90 compiled with gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214
VaST compiled on  Mon Aug 24 15:05:05 CDT 2026
VaST build number  1.0rc89-195-gae6eb4b1
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-08-24)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Tue Sep  1 05:51:22 CDT 2026
Host name: tau
############################################################

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-2 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ2b1x1/TTUQ2_bad_region.lst
CAMERA_SETTINGS= TTUQ2b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ2.txt
FILTER_BAD_IMG__MAX_APERTURE_STAR_SIZE_PIX= 12.5
FILTER_BAD_IMG__MAX_ELONGATION_AminusB_PIX= 0.55
FILTER_BAD_IMG__MIN_APERTURE_STAR_SIZE_PIX= 2.0
FILTER_BRIGHT_MAG_CUTOFF_TRANSIENT_SEARCH= -5
FILTER_FAINT_MAG_CUTOFF_TRANSIENT_SEARCH= 15.5
FLAT_FIELD_DIR_OR_FILE= /var/www/nmw_calibration/TTUQ2b1x1/flats
FRAME_EDGE_OFFSET_PIX= 600
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
DISABLE_NEW_TO_REF_MEAN_IMG_RATIO_CHECK= yes
MAX_NEW_IMG_MEAN_VALUE= 25000
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS= 0.18
MAX_SD_RATIO_OF_SECOND_EPOCH_IMGS_SOFT_LIMIT= 0.12
MPC_CODE= V36
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 10000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 8000
OMP_NUM_THREADS= 3
ONLINE_MPCHECKER_BUTTON_ASTEROID_SEARCH_RADIUS_ARCMIN= 
PHOTOMETRIC_CALIBRATION= 
REQUIRE_PIX_SHIFT_BETWEEN_IMAGES_FOR_TRANSIENT_CANDIDATES= yes
SEXTRACTOR_CONFIG_BRIGHTSTARPASS= default.sex.telephoto_lens_onlybrightstars_v1
SEXTRACTOR_CONFIG_FILES= default.sex.telephoto_lens_onlybrightstars_v1 default.sex.telephoto_lens_vSTL
STARMATCH_RADIUS_PIX= 5
SYSREM_ITERATIONS= 0
TELESCOP= 
TELESCOP_NAME_KNOWN_TO_VaST_FOR_FOV_DETERMINATION= 
UCAC5_PLATESOLVE_ITERATIONS= 2
FPACK_FULLY_CALIBRATED_IMAGE= no
#######################################
HOSTNAME= tau
USER= 
HOME= 
#######################################
SExtractor catalog cache: enabled, directory /data_ssd/NMW-TexasTech/vast_sextractor_cache
Reference image directory is set to /data_ssd/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
GAIA_DR2_CLIENT=vizquery (lib/vizquery -> VizieR vizier.cds.unistra.fr)
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Cas-01-Q2b1x1
#######################################
########### Starting Cas-01-Q2b1x1 ###########
Processing Cas-01-Q2b1x1
server tau has sufficient free disk space available: 396423 MB at /data_ssd/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 396423 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
REFERENCE_EPOCH__SECOND_IMAGE= /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Small preview (one of the new images): 

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

MAKE_PNG_PLOTS=yes


renamed 'Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.png' -> 'transient_report/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits_preview.png'

Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits


renamed 'Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.png' -> 'transient_report/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits_preview.png'

Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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= 622.9780
INFO:         REFERENCE_EPOCH__FIRST_IMAGE_SD= 683.2238
INFO:    SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 4004.5936
INFO:            SECOND_EPOCH__FIRST_IMAGE_SD= 1669.4103
INFO:   SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 4183.0159
INFO:           SECOND_EPOCH__SECOND_IMAGE_SD= 1883.0412
----------------------------------------------
INFO:      ref_to_second_epoch_img_mean_ratio= 6.42815
INFO:                  SECOND_EPOCH__SD_ratio= 0.113
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 =     22.1399993896484 / [degC] Focuser temperature
AMBTEMP =                 22.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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= '2026-09-01T05:38:01.2268329' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T10:38:01.2268329' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.4430697453 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T10:38:11.1272447' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.4431843404 / 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      =     35.9967878521913 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9999793506605 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     53.6180555555556 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =             359.0475 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.24139900903013 / 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  = 'Cas-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '02 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 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  =                20434 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20434 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.1399993896484 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.1399993896484 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 56.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               902.51 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 22.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 16.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             7.200576 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.800544 / [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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/d_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits :)

Spent 0.494174 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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/d_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
EXPTIME =                 20.0 / [s] Exposure duration
SET-TEMP=                  0.0 / [degC] CCD temperature setpoint
CCD-TEMP=                  0.0 / [degC] CCD temperature
FOCTEMP =     22.0300006866455 / [degC] Focuser temperature
AMBTEMP =                 22.9 / [degC] Ambient air temperature
Exploring image header: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits 
CCD-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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= '2026-09-01T05:39:02.5601722' / Time of observation (local)" status=0
Record 12: "DATE-OBS= '2026-09-01T10:39:02.5601722' / Time of observation (UTC)" status=0
Record 13: "MJD-OBS =     61284.4437796297 / Modified Julian Date of observation" status=0
Record 14: "DATE-AVG= '2026-09-01T10:39:12.4638609' / Averaged midpoint time (UTC)" status=0
Record 15: "MJD-AVG =     61284.4438942475 / 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      =     35.9967876515546 / [deg] RA of telescope" status=0
Record 32: "DEC     =     69.9999793132995 / [deg] Declination of telescope" status=0
Record 33: "CENTALT =     53.6144444444444 / [deg] Altitude of telescope" status=0
Record 34: "CENTAZ  =     358.903611111111 / [deg] Azimuth of telescope" status=0
Record 35: "AIRMASS =     1.24145650207888 / 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  = 'Cas-01'             / Name of the object of interest" status=0
Record 46: "OBJCTRA = '02 24 00'           / [H M S] RA of imaged object" status=0
Record 47: "OBJCTDEC= '+70 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  =                20434 / [step] Focuser position" status=0
Record 51: "FOCUSPOS=                20434 / [step] Focuser position" status=0
Record 52: "FOCUSSZ =                  0.0 / [um] Focuser step size" status=0
Record 53: "FOCTEMP =     22.0300006866455 / [degC] Focuser temperature" status=0
Record 54: "FOCUSTEM=     22.0300006866455 / [degC] Focuser temperature" status=0
Record 55: "DEWPOINT=                 13.6 / [degC] Dew point" status=0
Record 56: "HUMIDITY=                 56.0 / [percent] Relative humidity" status=0
Record 57: "PRESSURE=               902.51 / [hPa] Air pressure" status=0
Record 58: "AMBTEMP =                 22.9 / [degC] Ambient air temperature" status=0
Record 59: "WINDDIR =                 16.0 / [deg] Wind direction: 0=N, 180=S, 90=E, 270=W" status=0
Record 60: "WINDGUST=             7.200576 / [kph] Wind gust" status=0
Record 61: "WINDSPD =             6.800544 / [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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits 9576 6388  16 bitpix
SET-TEMP= 0.000000 for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/d_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits :)

Spent 0.506534 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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/d_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
SECOND_EPOCH__SECOND_IMAGE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Previews of the CALIBRATED second-epoch images:


fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits



fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
  
SExtractor catalog cache: saved Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.cat to cache
SExtractor catalog cache: saved Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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: 2461284.94318549
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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits exists and is non-empty
wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits exists and is non-empty
wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits exists and is non-empty
wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (1st reference image)
verification OK: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Image size: 941.7'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 02:24:17.491 +69:59:18.59 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits (1st new image)
verification OK: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Image size: 937.1'x624.2'  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: 02:24:04.309 +70:02:10.65 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:24:17.491 +69:59:18.59
Second-epoch image center 02:24:04.309 +70:02:10.65
Angular distance between the image centers 0.0513 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits (2nd new image)
verification OK: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Image size: 937.1'x624.2'  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: 02:24:01.013 +70:01:51.44 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:24:17.491 +69:59:18.59
Second-epoch image center 02:24:01.013 +70:01:51.44
Angular distance between the image centers 0.0485 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  02:24:04.309 +70:02:10.65
Second-epoch second image center 02:24:01.013 +70:01:51.44
Angular distance between the image centers 0.00710 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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits &> /tmp/tmp.WdkBwzNeRu
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits &> /tmp/tmp.btOAkIgLGx
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits &> /tmp/tmp.kQ2LLsYbmj
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits &> /tmp/tmp.4VcTGlNK1t
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Calibrating the magnitude scale
Found non-empty wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat 
Found non-empty wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat
The reference image (wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits) and catalog (wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat) found
'wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat' -> 'wcsmag.cat'
Read 16441 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.7911 to 64.5348 deg, Dec +62.8421 to +75.4742 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 8.7911 to 64.5348 deg, Dec 62.8421 to 75.4742 deg
Loaded 15567 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): 7687 out of 8291 total matches.
Matched with Tycho-2 8291 out of 16441 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.905800
a=0.000000 b=1.000000 c=22.905800
From vast_summary.log: estimated ref. image limiting mag.:  -7.59
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.32

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.32

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 16441 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.7911 to 64.5348 deg, Dec +62.8421 to +75.4742 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 8.7911 to 64.5348 deg, Dec 62.8421 to 75.4742 deg
Loaded 15567 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): 7687 out of 8291 total matches.
Matched with Tycho-2 8291 out of 16441 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Forced-photometry filter: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits -> calib.txt_param_ref_wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (aperture=5.8)
Read 16457 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.8933 to 64.5343 deg, Dec +62.8422 to +75.4992 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 8.8933 to 64.5343 deg, Dec 62.8422 to 75.4992 deg
Loaded 15555 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): 7689 out of 8287 total matches.
Matched with Tycho-2 8287 out of 16457 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Forced-photometry filter: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits -> calib.txt_param_ref_wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits (aperture=5.8)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 1 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 2.1 pix  Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
 2.1 pix  Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
 2.3 pix  fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
 2.3 pix  fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Limiting magnitude estimates:
 15.3 mag.  Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
 15.3 mag.  Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
 13.1 mag.  fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
 12.9 mag.  fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
All-image limiting magnitude estimate:  12.9 (SNR )  10.4 (80% of stars)  with default.sex.telephoto_lens_onlybrightstars_v1
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
cp: cannot create regular file 'local_wcs_cache/': Not a directory
############ /tmp/tmp.WdkBwzNeRu (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits' -> 'wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS_IMAGE_NAME=wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS-calibrated image found: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Checking if the catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits alredy exist and is non-empty...
Catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS catalog name: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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=1328, bad_region=4783, passed=16441
Got 16441 stars (including 10676 good ones) from the SExtractor catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat 
util/solve_plate_with_UCAC5 got 16441 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4927 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 4909 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 12736 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4927 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 12736 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4909 matched stars entering correct_measured_positions(), 12736 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4909 stars left (next iteration limit 5399)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits N_match=4909 sigma_overall_arcsec=0.381 sigma_q1_arcsec=0.541 sigma_q2_arcsec=0.306 sigma_q3_arcsec=0.382 sigma_q4_arcsec=0.290 n_q1=1568 n_q2=982 n_q3=1407 n_q4=952 worst_quadrant_to_overall_ratio=1.420
The image catalog is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits -region wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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.btOAkIgLGx (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits' -> 'wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS_IMAGE_NAME=wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS-calibrated image found: wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Checking if the catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits alredy exist and is non-empty...
Catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS catalog name: wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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=1310, bad_region=4773, passed=16457
Got 16457 stars (including 10701 good ones) from the SExtractor catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat 
util/solve_plate_with_UCAC5 got 16457 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4925 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4907 matched stars entering correct_measured_positions(), 4907 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4907 matched stars entering correct_measured_positions(), 12747 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.32" 

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 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4925 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4907 matched stars entering correct_measured_positions(), 12747 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4907 matched stars entering correct_measured_positions(), 12747 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Excluding outliers - 4907 stars left (next iteration limit 5397)
Stop iterations.


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

SIP_REFIT: util/identify.sh trusts the WCS of wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits N_match=4907 sigma_overall_arcsec=0.377 sigma_q1_arcsec=0.513 sigma_q2_arcsec=0.314 sigma_q3_arcsec=0.381 sigma_q4_arcsec=0.277 n_q1=1569 n_q2=982 n_q3=1404 n_q4=952 worst_quadrant_to_overall_ratio=1.362
The image catalog is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits -region wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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.kQ2LLsYbmj (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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS_IMAGE_NAME=wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS-calibrated image found: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Checking if the catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits alredy exist and is non-empty...
Catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS catalog name: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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=251, bad_region=1297, passed=3114
Got 3114 stars (including 1653 good ones) from the SExtractor catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat 
util/solve_plate_with_UCAC5 got 3114 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010412 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 1615 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1604 matched stars entering correct_measured_positions(), 1593 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.47" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1604 matched stars entering correct_measured_positions(), 2022 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 

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 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 1615 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1604 matched stars entering correct_measured_positions(), 2021 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Accuracy estimation diagnostic: 1604 matched stars entering correct_measured_positions(), 2021 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 
Excluding outliers - 1604 stars left (next iteration limit 1764)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1604 robust_rms=6.807 arcsec worst_quadrant_rms=8.142 arcsec
SIP_REFIT: SIP order 3 trial: matched=1604 robust_rms=0.629 arcsec worst_quadrant_rms=0.780 arcsec
SIP_REFIT: SIP order 5 trial: matched=1604 robust_rms=0.514 arcsec worst_quadrant_rms=0.557 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1604 robust_rms_before=0.896 arcsec robust_rms_before_corrected=0.544 arcsec robust_rms_after=0.514 arcsec worst_quadrant_rms_before=0.567 worst_quadrant_rms_after=0.557
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.567 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits N_match=1604 sigma_overall_arcsec=0.557 sigma_q1_arcsec=0.526 sigma_q2_arcsec=0.556 sigma_q3_arcsec=0.576 sigma_q4_arcsec=0.534 n_q1=336 n_q2=344 n_q3=519 n_q4=405 worst_quadrant_to_overall_ratio=1.035
The image catalog is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits -region wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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.4VcTGlNK1t (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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS_IMAGE_NAME=wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS-calibrated image found: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Checking if the catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits alredy exist and is non-empty...
Catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS catalog name: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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=249, bad_region=982, passed=2723
Got 2723 stars (including 1565 good ones) from the SExtractor catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat 
util/solve_plate_with_UCAC5 got 2723 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010412 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1529 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1520 matched stars entering correct_measured_positions(), 1518 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.51" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 1520 matched stars entering correct_measured_positions(), 1824 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 

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 768 to 828 (Dec 63.6 to 75.2)
Done reading UCAC5 zone files...
Matched 1529 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 1521 matched stars entering correct_measured_positions(), 1824 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Accuracy estimation diagnostic: 1521 matched stars entering correct_measured_positions(), 1824 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.58" 
Excluding outliers - 1521 stars left (next iteration limit 1672)
Stop iterations.


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

SIP_REFIT: SIP order 2 trial: matched=1521 robust_rms=8.145 arcsec worst_quadrant_rms=12.486 arcsec
SIP_REFIT: SIP order 3 trial: matched=1521 robust_rms=0.619 arcsec worst_quadrant_rms=0.719 arcsec
SIP_REFIT: SIP order 5 trial: matched=1521 robust_rms=0.518 arcsec worst_quadrant_rms=0.571 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=1521 robust_rms_before=0.900 arcsec robust_rms_before_corrected=0.597 arcsec robust_rms_after=0.518 arcsec worst_quadrant_rms_before=0.623 worst_quadrant_rms_after=0.571
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.623 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits N_match=1521 sigma_overall_arcsec=0.592 sigma_q1_arcsec=0.598 sigma_q2_arcsec=0.599 sigma_q3_arcsec=0.620 sigma_q4_arcsec=0.544 n_q1=391 n_q2=228 n_q3=556 n_q4=346 worst_quadrant_to_overall_ratio=1.048
The image catalog is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits -region wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits to local_wcs_cache/
'wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits' -> 'local_wcs_cache/wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits'
Saving the final (post-refit) wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits to local_wcs_cache/
'wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits' -> 'local_wcs_cache/wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits'
Saving the final (post-refit) wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits to local_wcs_cache/
'wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits' -> 'local_wcs_cache/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits'
Saving the final (post-refit) wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits to local_wcs_cache/
'wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits' -> 'local_wcs_cache/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits'
###################################
# Pre-local-correction WCS quality summary (see WCS_QUALITY_DIAG lines above)
ref1=Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits sigma_overall=0.381 worst_q_ratio=1.420
ref2=Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits sigma_overall=0.377 worst_q_ratio=1.362
new1=fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits sigma_overall=0.557 worst_q_ratio=1.035
new2=fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits sigma_overall=0.592 worst_q_ratio=1.048
reference average sigma_overall=0.379 worst_q_ratio=1.391
warn-on-ratio threshold: 2.0x reference
###################################

Astrometric residual vector field (catalog-matched stars):

plot_astrometric_residuals_xy.py: wrote wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061_astrometric_residuals.png (4909 matched stars from wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.35 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062_astrometric_residuals.png (4907 matched stars from wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.34 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516_astrometric_residuals.png (1604 matched stars from wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.47 arcsec)


plot_astrometric_residuals_xy.py: wrote wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517_astrometric_residuals.png (1521 matched stars from wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.astrometric_residuals, image 9576x6388, median residual 0.52 arcsec)


Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits'
Saving fully-calibrated image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
'wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits' -> '/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits'
Preparing the HTML report for the field Cas-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
make_report_in_HTML.sh Phase 1 (network queries): 0s
Pre-generating preview images in parallel...
Done pre-generating preview images.
Pre-generating finding charts in parallel...
Done pre-generating finding charts.
make_report_in_HTML.sh Pre-generation: 0s
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 20739_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 20739_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    10.64    02:21:24.75 +68:06:27.7   4902 4360   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  02:21:24.91 +68:06:28.0 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 Cas-01-Q2b1x1 with default.sex.telephoto_lens_onlybrightstars_v1
*------ done with default.sex.telephoto_lens_onlybrightstars_v1 ------*
#### The local exclusion list is exclusion_list_local.txt ####
wait
*------ default.sex.telephoto_lens_vSTL ------*
'default.sex.telephoto_lens_vSTL' -> 'default.sex'
Starting VaST with default.sex.telephoto_lens_vSTL

  ./vast --noflagimage --starmatchraius 5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
  
SExtractor catalog cache: saved Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.cat to cache
SExtractor catalog cache: saved Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.cat to cache
VaST run complete with default.sex.telephoto_lens_vSTL
The four input images were /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Checking WCS cache directory local_wcs_cache
Found WCS cache directory local_wcs_cache
Creating symlink local_wcs_cache/wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Creating symlink local_wcs_cache/wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Creating symlink local_wcs_cache/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Creating symlink local_wcs_cache/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Checking WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Found WCS cache directory /mnt/usb/NMW_NG/solved_reference_images
Checking WCS cache directory /home/NMW_web_upload/solved_reference_images
Checking WCS cache directory /dataX/kirx/NMW_NG_rt3_autumn2019/solved_reference_images
Plate-solving the images
wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits exists and is non-empty
wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits exists and is non-empty
wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits exists and is non-empty
wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits exists and is non-empty
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (1st reference image)
verification OK: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Image size: 941.7'x627.0'  15.7(deg)x10.4(deg)  9576x6388 pix
Image scale: 5.90"/pix along the X axis and 5.89"/pix along the Y axis
Image center: 02:24:17.491 +69:59:18.59 J2000 4789.000 3195.000 
###################################
The image scale is 5.90"/pix, setting the soft and hard astrometric limits for filtering second-epoch detections: 5.9" and 8.9"
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits (1st new image)
verification OK: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Image size: 937.1'x624.2'  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: 02:24:04.309 +70:02:10.65 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the first second-epoch image (pointing accuracy)
Reference image center 02:24:17.491 +69:59:18.59
Second-epoch image center 02:24:04.309 +70:02:10.65
Angular distance between the image centers 0.0513 deg.
Soft limit: 0.50 deg.  Hard limit: 1.00 deg.
###################################
###################################
# fov_of_wcs_calibrated_image.sh output for wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits (2nd new image)
verification OK: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Image size: 937.1'x624.2'  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: 02:24:01.013 +70:01:51.44 J2000 4789.000 3195.000 
###################################
###################################
# Check the image center offset between the reference and the second second-epoch image (pointing accuracy)
Reference image center 02:24:17.491 +69:59:18.59
Second-epoch image center 02:24:01.013 +70:01:51.44
Angular distance between the image centers 0.0485 deg.
###################################
###################################
# Check the image center offset between the first and the second second-epoch image (shift should be applied between the second-epoch images)
Second-epoch first image center  02:24:04.309 +70:02:10.65
Second-epoch second image center 02:24:01.013 +70:01:51.44
Angular distance between the image centers 0.00710 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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits &> /tmp/tmp.mWubP7LkTG
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits &> /tmp/tmp.X2lAcNHJjP
Parallel run for /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits &> /tmp/tmp.CXbT2yyOMo
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Running  util/solve_plate_with_UCAC5 --no_photometric_catalog --iterations 2  /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits &> /tmp/tmp.orNmW2djXZ
Parallel run for /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Calibrating the magnitude scale
Found non-empty wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat 
Found non-empty wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits and wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat
The reference image (wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits) and catalog (wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat) found
'wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat' -> 'wcsmag.cat'
Read 120979 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.6810 to 64.5474 deg, Dec +62.7957 to +75.4937 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 8.6810 to 64.5474 deg, Dec 62.7957 to 75.4937 deg
Loaded 15748 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): 6660 out of 8419 total matches.
Matched with Tycho-2 8419 out of 120979 detected stars.
The calibration function type and coefficients are written to calib.txt_param
util/calibrate_magnitude_scale 0.000000 1.000000 22.763000
a=0.000000 b=1.000000 c=22.763000
From vast_summary.log: estimated ref. image limiting mag.:  -7.22
Updating vast_summary.log: Estimated ref. image limiting mag.:  15.54

Updated vast_limiting_magnitude.log with calibrated magnitudes
Working...
Please, PLEASE, be patient!!!
All lightcurves processed!  =)
Estimated ref. image limiting mag.:  15.54

Lightcurve magnitude calibration plot:


Preparing per-reference-image forced-photometry calibration (method=tycho2 band=V)
Read 120979 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.6810 to 64.5474 deg, Dec +62.7957 to +75.4937 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 8.6810 to 64.5474 deg, Dec 62.7957 to 75.4937 deg
Loaded 15748 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): 6660 out of 8419 total matches.
Matched with Tycho-2 8419 out of 120979 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00001.cat.aperture for wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Forced-photometry filter: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits -> calib.txt_param_ref_wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (aperture=4.3)
Read 120718 stars from the SExtractor catalog wcsmag.cat
Detected star coordinate range: RA 8.6807 to 64.5470 deg, Dec +62.8422 to +75.5017 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 8.6807 to 64.5470 deg, Dec 62.8422 to 75.5017 deg
Loaded 15616 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): 6686 out of 8410 total matches.
Matched with Tycho-2 8410 out of 120718 detected stars.
util/calibrate_single_image_with_tycho2.sh: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits via Tycho-2

Single-image forced-photometry magnitude calibration plot for wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits:


Forced-photometry filter: reusing the VaST-run aperture from image00002.cat.aperture for wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Forced-photometry filter: calibrated wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits -> calib.txt_param_ref_wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits (aperture=4.3)
____ End of magnitude calibration ____
Applying consolidated magnitude filters...
Preparing the exclusion lists for this field
Done with filtering
Found 11 candidate transients before the final filtering.  (Hard limit: 10000)
Median FWHM seeing for isolated stars:
 1.9 pix  Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
 1.9 pix  Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
 2.1 pix  fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
 2.2 pix  fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Limiting magnitude estimates:
 15.5 mag.  Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
 15.5 mag.  Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
 13.8 mag.  fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
 13.7 mag.  fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
All-image limiting magnitude estimate:  13.7 (SNR )  13.2 (80% of stars)  with default.sex.telephoto_lens_vSTL
The first estimate is the magnitude of a star detected with a signal-to-noise ratio of  following Karpov (2025, Acta Polytechnica, 65, 50). 
This value should be representative of the faintest stars clearly visible in the image. 
The brighter of the limiting magnitude estimates for the two second-epoch images is reported here.
The second estimate is the 80th percentile of the magnitude distribution of stars detected on all four images.
This value is representative of the faintest object that may enter the candidate transients list.
The hard cut-off for the candidate transients is 15.5 mag.
Waiting for UCAC5 plate solver
wait
############ /tmp/tmp.mWubP7LkTG (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits' -> 'wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS_IMAGE_NAME=wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS-calibrated image found: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
Checking if the catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits alredy exist and is non-empty...
Catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits
WCS catalog name: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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=20, blended=10189, bad_region=26608, passed=120959
Got 120959 stars (including 86324 good ones) from the SExtractor catalog wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat 
util/solve_plate_with_UCAC5 got 120959 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 763 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4930 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 4918 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 100493 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 763 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4930 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 100493 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Accuracy estimation diagnostic: 4918 matched stars entering correct_measured_positions(), 100493 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.36" 
Excluding outliers - 4918 stars left (next iteration limit 5409)
Stop iterations.


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

SIP_REFIT: wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits N_match=4918 sigma_overall_arcsec=0.381 sigma_q1_arcsec=0.510 sigma_q2_arcsec=0.305 sigma_q3_arcsec=0.376 sigma_q4_arcsec=0.287 n_q1=1562 n_q2=947 n_q3=1439 n_q4=970 worst_quadrant_to_overall_ratio=1.339
The image catalog is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits -region wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.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.X2lAcNHJjP (6) ############
Parsing command line arguments...
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits is already a symlink and we do not allow symlinks on symlinks
The guess is based on the existing WCS header.
Trying to blindly solve the plate (local solve-field or remote server)...
/data_ssd/NMW-TexasTech/workdir/vast_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits 573.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WARNING from replace_file_with_symlink_if_filename_contains_white_spaces() the input file /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits is already a symlink and we do not allow symlinks on symlinks
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
verification OK: /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
It's a known telescope with plate solutions that are supposed to be good.
The input image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits has a WCS header - will blindly trust it is good...
'/data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits' -> 'wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS_IMAGE_NAME=wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS-calibrated image found: wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
Checking if the catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits alredy exist and is non-empty...
Catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat corresponding to the image wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits
WCS catalog name: wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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=26, blended=10151, bad_region=26636, passed=120692
Got 120692 stars (including 86025 good ones) from the SExtractor catalog wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat 
util/solve_plate_with_UCAC5 got 120692 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 941.7'
Seting catalog search parameters based on the expected field of view 941.7 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013079 (47.1 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010463 (37.7 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4929 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 4916 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.34" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 100237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 

ITERATION 02 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 764 to 829 (Dec 62.8 to 75.5)
Done reading UCAC5 zone files...
Matched 4929 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 100237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.33" 
Accuracy estimation diagnostic: 4916 matched stars entering correct_measured_positions(), 100237 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.35" 
Excluding outliers - 4916 stars left (next iteration limit 5407)
Stop iterations.


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

SIP_REFIT: wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: util/identify.sh trusts the WCS of wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits (astrometrynet) - keeping it, no refit (set VAST_FORCE_SIP_REFIT=1 to refit anyway)
WCS_QUALITY_DIAG: file=Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits N_match=4916 sigma_overall_arcsec=0.369 sigma_q1_arcsec=0.497 sigma_q2_arcsec=0.303 sigma_q3_arcsec=0.374 sigma_q4_arcsec=0.276 n_q1=1570 n_q2=952 n_q3=1434 n_q4=960 worst_quadrant_to_overall_ratio=1.346
The image catalog is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/reference_imgs/Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits -region wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.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.CXbT2yyOMo (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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS_IMAGE_NAME=wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS-calibrated image found: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Checking if the catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits alredy exist and is non-empty...
Catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
WCS catalog name: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat 
Excluding image region:    -1.0    -1.0     1.0     1.0  (defined in bad_region.lst)
Excluding image region:  7500.0     0.0  9576.0  6388.0  (defined in bad_region.lst)
Excluding image region:  1122.0  1550.0  1124.0  1552.0  (defined in bad_region.lst)
Excluding image region:  1637.0  2824.0  1639.0  2826.0  (defined in bad_region.lst)
Excluding image region:  1831.0  2839.0  1833.0  2841.0  (defined in bad_region.lst)
Excluding image region:  1905.0  4570.0  1907.0  4572.0  (defined in bad_region.lst)
Excluding image region:  2012.0  4693.0  2014.0  4695.0  (defined in bad_region.lst)
Excluding image region:  2397.0  4241.0  2399.0  4243.0  (defined in bad_region.lst)
Excluding image region:  2679.0  2807.0  2681.0  2809.0  (defined in bad_region.lst)
Excluding more image regions!.. (will not print them all)
Excluded a total of 31 image regions  (defined in bad_region.lst).
SExtractor catalog parsing summary: zero_flux=0, no_flux_err=0, no_mag=0, no_mag_err=0, low_SNR=8, blended=1333, bad_region=11759, passed=32660
Got 32660 stars (including 20223 good ones) from the SExtractor catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat 
util/solve_plate_with_UCAC5 got 32660 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010412 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4910 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 4892 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4892 matched stars entering correct_measured_positions(), 23715 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.48" 

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 768 to 828 (Dec 63.6 to 75.3)
Done reading UCAC5 zone files...
Matched 4910 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 23715 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 
Accuracy estimation diagnostic: 4891 matched stars entering correct_measured_positions(), 23715 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Excluding outliers - 4891 stars left (next iteration limit 5381)
Stop iterations.


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

SIP_REFIT: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4891 robust_rms=7.148 arcsec worst_quadrant_rms=8.059 arcsec
SIP_REFIT: SIP order 3 trial: matched=4891 robust_rms=0.652 arcsec worst_quadrant_rms=0.847 arcsec
SIP_REFIT: SIP order 5 trial: matched=4891 robust_rms=0.540 arcsec worst_quadrant_rms=0.593 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4891 robust_rms_before=0.926 arcsec robust_rms_before_corrected=0.523 arcsec robust_rms_after=0.540 arcsec worst_quadrant_rms_before=0.574 worst_quadrant_rms_after=0.593
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.574 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits N_match=4891 sigma_overall_arcsec=0.540 sigma_q1_arcsec=0.520 sigma_q2_arcsec=0.533 sigma_q3_arcsec=0.617 sigma_q4_arcsec=0.472 n_q1=1124 n_q2=1041 n_q3=1491 n_q4=1235 worst_quadrant_to_overall_ratio=1.144
The image catalog is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits -region wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.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.orNmW2djXZ (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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/util/wcs_image_calibration.sh /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits 605.0
Entering WCS image calibration mode.
ORIGINAL_FITSFILE=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
FITSFILE before on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
FITSFILE after on_the_fly=/data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
verification OK: /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS_IMAGE_NAME=wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS-calibrated image found: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Checking if the catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits alredy exist and is non-empty...
Catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat corresponding to the image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits found.
The catalog is in the new format, as expected.
The plate-solved (WCS-calibrated) image is saved to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
util/solve_plate_with_UCAC5 is preparing to read a catalog corresponding to the image /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
WCS catalog name: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.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=16, blended=1066, bad_region=8964, passed=29578
Got 29578 stars (including 19964 good ones) from the SExtractor catalog wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat 
util/solve_plate_with_UCAC5 got 29578 stars from the SExtractor catalog
Updated FoV from the plate-solved image: 937.1'
Seting catalog search parameters based on the expected field of view 937.1 arcmin
UCAC5 catalog search parameters:
                    catalog_search_parameters->search_radius_deg= 0.013015 (46.9 arcsec)
                    catalog_search_parameters->brightest_mag= 1.00
                    catalog_search_parameters->faintest_mag= 13.50
                    catalog_search_parameters->search_radius_second_step_deg 0.010412 (37.5 arcsec)

ITERATION 01 -- talking to VizieR, this might be slow!
UCAC5 search strategy: trying local copy first
Found a local copy of UCAC5
UCAC5 local query limit 5000: matching up to 5000 detected stars, deepening the UCAC5 window to mag 15.50
Reading UCAC5 zone files...
Searching UCAC5 zones 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 4886 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Removing outliers...
Correcting the measured astrometric positions...
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 22004 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.49" 

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 767 to 828 (Dec 63.5 to 75.2)
Done reading UCAC5 zone files...
Matched 4914 stars with the local copy of UCAC5.
The local UCAC5 search seems to be a success
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 22004 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.50" 
Accuracy estimation diagnostic: 4887 matched stars entering correct_measured_positions(), 22004 with non-zero local correction accuracy
Estimated accuracy of the plate solution: 0.52" 
Excluding outliers - 4887 stars left (next iteration limit 5375)
Stop iterations.


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

SIP_REFIT: wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits is a symbolic link - will not rewrite the WCS of whatever it points to, but will still refit the output catalog positions
SIP_REFIT: SIP order 2 trial: matched=4887 robust_rms=8.054 arcsec worst_quadrant_rms=10.946 arcsec
SIP_REFIT: SIP order 3 trial: matched=4887 robust_rms=0.647 arcsec worst_quadrant_rms=0.748 arcsec
SIP_REFIT: SIP order 5 trial: matched=4887 robust_rms=0.549 arcsec worst_quadrant_rms=0.588 arcsec
SIP_REFIT: selected SIP order 5
SIP_REFIT: order=5 matched=4887 robust_rms_before=0.926 arcsec robust_rms_before_corrected=0.552 arcsec robust_rms_after=0.549 arcsec worst_quadrant_rms_before=0.586 worst_quadrant_rms_after=0.588
SIP_REFIT: refit does not sufficiently improve on the solution it would replace (best worst-quadrant baseline 0.586 arcsec) - keeping the original
WCS_QUALITY_DIAG: file=fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits N_match=4887 sigma_overall_arcsec=0.549 sigma_q1_arcsec=0.570 sigma_q2_arcsec=0.587 sigma_q3_arcsec=0.580 sigma_q4_arcsec=0.491 n_q1=1338 n_q2=725 n_q3=1648 n_q4=1176 worst_quadrant_to_overall_ratio=1.069
The image catalog is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ucac5
The DS9 region file with the matched stars is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ds9.reg
You may view it with the command:
 ds9 /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits -region wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.ds9.reg
The astrometric residuals vector field is written to wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits.wcscat.astrometric_residuals
Option '-n' not using photometric catalogs, just stick with astrometry
opt '-i': 2 is the maximum number of iterations
FORCED_PHOTOMETRY_CALIBRATION_METHOD=tycho2 - not using remote photometric catalogs, just stick with astrometry
Skipping WCS quality comparison: not the first SExtractor pass (default.sex.telephoto_lens_vSTL)
Copying WCS-calibrated images back to input directory
Saving fully-calibrated image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Saving fully-calibrated image wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
INFO: FPACK_FULLY_CALIBRATED_IMAGE=no (not compressing the image)
The destination file is already there - not rewriting /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/wcs_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits
Preparing the HTML report for the field Cas-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
Forced photometry on wcs_Cas-01-Q2b1x1_2026-02-11_20-59-40_20.00sec_-15.00C_LIGHT_0061.fits at 02:19:36.76 +68:59:53.7:  13.82 +/- 0.04  detection
Forced photometry on wcs_Cas-01-Q2b1x1_2026-02-11_21-00-29_20.00sec_-14.90C_LIGHT_0062.fits at 02:19:36.76 +68:59:53.7:  13.85 +/- 0.04  detection
Forced photometry reference-image weighted average:  13.83 +/- 0.03
Forced photometry filter REJECTED candidate at 02:19:36.76 +68:59:53.7: ref_mag=13.83 +/- 0.03 new_mean_mag=13.5251 delta=0.31 (need > 0.90)
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 139409_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 139409_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 1     2026 09 01.44319    2461284.94319    13.50    02:19:36.81 +68:59:53.1   5012 3827   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-38-01_20.00sec_0.00C_LIGHT_0516.fits
Discovery image 2     2026 09 01.44390    2461284.94390    13.57    02:19:36.71 +68:59:54.3   5009 3823   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 139480_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 139480_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    10.56    02:41:35.11 +69:51:56.9   3875 3235   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

Rejecting candidate due to large distance (25.7") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 139551_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 139551_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    11.19    03:52:09.14 +72:38:07.3   0940 0773   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

Rejecting candidate due to large distance (26.9") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 139652_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 139652_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    11.74    02:40:44.85 +71:35:12.2   4020 2204   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

Rejecting candidate due to large distance (25.8") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 139760_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 139760_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    12.31    03:45:32.19 +69:52:03.2   0620 2464   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

Rejecting candidate due to large distance (29.2") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 140042_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 140042_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    12.82    02:55:50.86 +73:22:18.6   3476 1041   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  02:55:50.76 +73:22:19.0 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 140055_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 140055_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    12.83    02:55:09.77 +73:21:00.1   3504 1059   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  02:55:09.75 +73:20:59.8 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 140331_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 140331_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    13.15    02:07:12.23 +67:38:08.3   5714 4638   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  02:07:12.11 +67:38:08.3 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 140444_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 140444_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 2     2026 09 01.44390    2461284.94390    13.76    02:29:13.77 +67:05:54.4   4430 4955   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

Rejecting candidate due to large distance (29.5") between the two second-epoch detections
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 53505_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 53505_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 3     2026 09 01.44390    2461284.94390    12.47    01:34:38.53 +70:57:02.6   7235 2463   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  01:34:38.49 +70:57:02.7 in the exclusion list exclusion_list.txt ****
  
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Considering the candidate 72030_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517
The candidate 72030_fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517 did not pass the final checks
Discovery image 3     2026 09 01.44390    2461284.94390    12.69    03:30:40.15 +67:24:09.1   0913 4153   /data_ssd/NMW-TexasTech/workdir//img_2026-09-01_CI_Cas-01-Q2b1x1_054550_TTUQ2b1x1_430451_jnml2Mlc/fd_Cas-01-Q2b1x1_2026-09-01_05-39-02_20.00sec_0.00C_LIGHT_0517.fits

**** FOUND  03:30:40.10 +67:24:09.3 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 Cas-01-Q2b1x1 with default.sex.telephoto_lens_vSTL
*------ done with default.sex.telephoto_lens_vSTL ------*
#### The local exclusion list is exclusion_list_local.txt ####
########### Completed Cas-01-Q2b1x1 ###########
The analysis was running at tau
We are allowed to update the exclusion list at tau host
Found ../exclusion_list_TTUQ2.txt
#### The exclusion list before filtering-out asteroids, bad pixels and adding Gaia sources ####
###################################################################################
renamed 'exclusion_list_index_html.txt_noasteroids' -> 'exclusion_list_index_html.txt'
renamed 'exclusion_list_index_html.txt_nohotpixels' -> 'exclusion_list_index_html.txt'
# Count candidates with no identification (that also don't look like hot pix)
Found 0 unidentified candidates (excluding asteroids, hot pixels and known variable stars).
###################################################################################
0 candidates found (excluding asteroids and hot pixels)
This does not look like a test run
###################################################################################
exclusion_list_gaiadr2.txt NOT FOUND
exclusion_list_apass.txt NOT FOUND
IS_THIS_TEST_RUN=NO  ALLOW_EXCLUSION_LIST_UPDATE= YES
#### Nothing to add to the exclusion list ####
The observatory MPC code is V36
############################################################
Positions of planets computed with util/planet_finder/main.py for JD(UT)2461284.94318549 -observatory V36
11:00:19.03 +08:02:45.7 Mercury (-1.4mag)
13:20:27.81 -12:11:39.1 Venus (-4.6mag)
06:58:01.64 +23:18:33.5 Mars (1.2mag)
09:04:10.10 +17:17:57.6 Jupiter (-1.8mag)
00:53:00.37 +02:47:48.4 Saturn (0.5mag)
04:13:33.22 +21:01:38.8 Uranus (5.7mag)
00:14:17.11 +00:00:25.7 Neptune (7.7mag)
20:26:01.12 -23:38:10.0 Pluto (14.5mag)
01:48:43.37 +15:56:05.1 Moon (-11.4mag)
-rw-r--r-- 1 apache apache 363 Sep  1 05:50 planets.txt
############################################################
Positions of selected moons from JPL HORIZONS for JD(UT)2461284.94318549:
09:04:16.02 +17:17:30.3 Io (6.2mag)
09:04:07.73 +17:18:09.7 Europa (6.3mag)
09:04:02.15 +17:18:35.4 Ganymede (5.6mag)
09:04:18.36 +17:17:17.1 Callisto (6.9mag)
09:01:46.55 +17:31:39.3 Himalia (15.7mag)
09:04:09.84 +17:17:59.7 Thebe (16.6mag)
09:01:26.19 +17:26:05.7 Elara (17.7mag)
09:08:10.75 +16:47:25.5 Pasiphae (17.9mag)
09:05:40.41 +17:34:09.3 Carme (19.0mag)
00:53:11.19 +02:47:21.3 Titan (8.3mag)
00:52:59.13 +02:47:54.0 Rhea (9.6mag)
00:53:28.72 +02:50:30.4 Iapetus (11.0mag)
00:52:52.75 +02:47:13.1 Hyperion (14.4mag)
00:51:53.45 +02:38:07.2 Phoebe (16.4mag)
-rw-r--r-- 1 apache apache 568 Sep  1 05:50 moons.txt
############################################################
Positions of selected spacecraft from JPL HORIZONS for JD(UT)2461284.94318549:
21:19:05.18 -04:58:05.5 JWST
16:42:12.29 +43:54:08.8 Chandra
12:30:14.22 -62:06:14.4 XMM-Newton
-rw-r--r-- 1 apache apache 96 Sep  1 05:50 spacecraft.txt
############################################################
Positions of bright comets computed with util/comet_finder/main.py for JD(UT)2461284.94318549 -observatory V36
03:36:33.00 +19:02:49.1 17.4mag P/1996 R2 (Lagerkvist)
18:01:12.32 -34:18:56.6 14.3mag P/2010 H2 (Vales)
07:14:54.45 -69:59:14.6 17.3mag C/2014 UN271 (Bernardinelli-Bernstein)
06:14:55.12 +33:33:05.5 17.7mag C/2017 K2 (PANSTARRS)
04:41:54.23 +44:31:53.9 15.5mag P/2021 N1 (ZTF)
04:41:54.23 +44:31:53.9 15.5mag P/2021 N1 (ZTF)
22:18:14.76 +29:21:08.7 17.4mag C/2022 E2 (ATLAS)
07:05:33.97 +26:05:24.9 16.8mag C/2022 N2 (PANSTARRS)
10:44:05.13 +27:26:41.3 17.0mag C/2022 QE78 (ATLAS)
09:44:54.86 +05:15:46.3 18.0mag C/2022 R6 (PANSTARRS)
20:43:33.61 +62:14:59.6 18.0mag C/2023 H5 (Lemmon)
15:31:28.11 -15:07:59.7 14.8mag C/2023 R1 (PANSTARRS)
08:33:05.66 +32:32:52.2 15.7mag C/2024 E1 (Wierzchos)
15:06:00.49 +15:23:30.0 17.9mag C/2024 G6 (ATLAS)
18:37:45.37 +43:21:41.6 13.7mag C/2024 J3 (ATLAS)
20:34:25.23 +49:33:02.8 17.5mag C/2024 R4 (PANSTARRS)
05:32:17.38 -12:57:31.5 15.2mag C/2024 T5 (ATLAS)
07:09:23.31 +19:41:45.2 17.8mag C/2025 J1 (Borisov)
11:08:41.66 +19:13:06.6 16.9mag C/2025 V2 (Rankin)
13:14:55.88 +00:34:56.1 16.8mag C/2025 Y1 (ATLAS)
16:27:32.77 +74:56:16.0 16.2mag C/2026 A2 (Bok)
03:08:09.22 +46:16:29.9 17.4mag C/2026 B2 (Sun-Gao)
12:07:53.82 +10:47:57.1 17.5mag A/2026 E1
22:21:07.16 -34:25:01.0 13.2mag 10P/Tempel
11:44:16.89 -05:02:07.1 16.3mag 29P/Schwassmann-Wachmann
11:56:46.74 -03:13:50.8 17.5mag 63P/Wild
00:47:39.68 -06:41:53.2 15.4mag 65P/Gunn
06:27:44.99 +19:40:06.8 17.1mag 78P/Gehrels
03:16:18.81 +14:53:19.0 16.7mag 88P/Howell
05:19:05.45 +26:22:15.6 17.6mag 112P/Urata-Niijima
07:14:08.20 +26:13:59.6 15.9mag 114P/Wiseman-Skiff
10:14:43.83 +22:05:19.9 14.9mag 123P/West-Hartley
12:33:52.01 -19:16:20.4 17.4mag 124P/Mrkos
06:10:07.38 +20:48:23.8 15.9mag 128P/Shoemaker-Holt
23:55:17.48 +02:40:33.1 17.4mag 139P/Vaisala-Oterma
02:50:44.31 -18:07:40.8 15.5mag 161P/Hartley-IRAS
09:54:08.53 +18:11:09.3 11.9mag 169P/NEAT
03:18:48.28 +08:54:11.2 14.4mag 220P/McNaught
04:31:57.93 +34:25:04.5 15.2mag 260P/McNaught
08:15:54.14 +36:16:56.5 17.3mag 295P/LINEAR
15:21:37.04 +00:24:41.0 17.9mag 391P/Kowalski
09:22:41.01 +17:09:02.8 17.9mag 450P/LONEOS
-rw-r--r-- 1 apache apache 2.1K Sep  1 05:50 comets.txt
############################################################
List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html :
04:20:07.58 -42:26:59.90  AT2026zjy  2026-08-23.03 15.91
03:08:18.02 +11:54:46.50  SN2026ymb  2026-08-23.4 16.44
20:22:32.48 -50:45:14.30  SN2026yid  2026-08-22.82 15.13
04:24:28.39 -56:20:21.60  ASASSN-26ey  2026-08-20.02 15.55
16:46:37.81 -63:14:59.80  ASASSN-26ex  2026-08-18.78 3.63
21:28:47.85 +20:31:03.60  SN 2026sfn  2026-08-16.3 17.09
23:01:28.67 -61:00:39.00  SN 2026yib  2026-08-14.85 17.36
00:22:23.20 -32:16:02.70  SN 2026whu  2026-08-14.96 16.5
19:56:21.71 -37:24:19.90  ASASSN-26ew  2026-08-13.82 14.73
13:53:14.21 +00:26:52.00  SN 2026wkv  2026-08-10.12 15.83
05:21:07.61 +23:38:20.10  TCP J05210763+2338194  2026-08-10.59 9.34
01:28:20.49 +40:13:27.10  SN2026wpd  2026-08-9.34 16.37
23:47:50.87 +49:28:49.80  SN2026wjs  2026-08-9.35 17.12
16:03:20.92 +17:43:23.70  AT2026xau  2026-08-9.3 17.71
01:10:22.05 -09:34:08.50  SN2026weo  2026-08-7.46 15.76
00:56:54.35 -35:55:29.40  AT2026wdy  2026-08-5.05 16.08
22:08:07.63 -53:03:58.90  AT2026wek  2026-08-3.82 17.17
14:51:51.34 +66:13:24.60  ASASSN-26ev  2026-08-2.15 14.02
12:06:50.79 -36:16:06.20  SN2026wgm  2026-08-1.73 15.61
16:56:36.90 -59:29:26.00  ASASSN-26er  2026-07-25.82 15.09
01:21:27.83 -10:37:05.00  SN2026vbh  2026-07-25.61 15.97
21:17:31.59 +22:25:50.90  ASASSN-26eq  2026-07-24.37 15.13
18:53:36.89 +16:56:43.60  ASASSN-26ep  2026-07-23.47 -4.06
12:18:47.98 -30:48:47.50  ASASSN-26et  2026-07-22.76 13.98
13:00:47.82 +15:42:17.60  SN2026uwk  2026-07-21.75 16.38
18:52:31.11 -32:28:00.90  ASASSN-26en  2026-07-21.77 14.63
14:42:58.01 -62:32:59.10  ASASSN-26es  2026-07-20.79 15.36
20:12:45.57 -32:53:13.00  ASASSN-26em  2026-07-20.94 16.83
18:54:24.33 -46:11:51.70  ASASSN-26eu  2026-07-20.93 14.86
03:18:56.99 -80:55:10.40  AT2026ugi  2026-07-20.03 17.12
18:43:58.40 +24:22:41.80  ASASSN-26eo  2026-07-19.36 16.16
04:50:01.03 -02:22:33.80  ASASSN-26ej  2026-07-16.17 17.02
18:34:55.28 -31:41:00.90  ASASSN-26ek  2026-07-16.24 15.73
17:07:43.61 -44:21:53.50  ASASSN-26el  2026-07-15.86 16.01
14:45:08.35 +24:13:12.30  ASASSN-26ei  2026-07-16.17 16.46
10:00:46.44 -32:36:31.10  AT 2023mhb  2026-07-14.73 16.67
14:39:37.45 -11:22:36.20  AT 2026unl  2026-07-15.27 17.11
10:49:42.57 -11:25:55.80  ASASSN-26eh  2026-07-14.72 16.58
19:33:53.06 -07:15:00.80  ASASSN-22le  2026-07-14.15 15.5
02:45:40.52 -27:55:30.30  ASASSN-26ef  2026-07-12.35 15.86
23:26:43.80 +04:42:39.70  SN 2026qtn  2026-07-12.22 16.47
02:19:17.26 +28:57:15.40  ASASSN-26ec  2026-07-11.53 2.78
18:31:15.56 -05:34:31.50  AT2026stb  2026-07-11.28 -1.29
13:36:08.24 +23:29:05.00  AT2026pjf  2026-07-10.18 -0.72
17:33:39.82 +04:22:36.70  SN2026pir  2026-07-9.86 -0.66
11:21:41.26 -50:33:36.30  ASASSN-26ed  2026-07-8.8 -1.3
23:41:42.11 +26:29:49.10  AT2026qil  2026-07-9.3 16.15
20:21:30.50 -32:03:40.10  ASASSN-26ee  2026-07-7.22 15.53
19:37:44.09 -05:35:42.80  AT2026ryu  2026-07-7.17 14.88
11:06:55.46 -04:07:04.50  AT2026qqg  2026-07-5.01 16.82
19:07:23.69 -74:13:37.30  AT2026qly  2026-07-5.02 17.31
17:57:43.80 +27:18:40.10  ASASSN-26ea  2026-07-5.07 16.67
19:59:01.43 -32:07:34.30  ASASSN-26eb  2026-07-4.97 15.52
18:46:50.35 -57:44:13.20  SN 2026qqp  2026-07-5.03 -0.92
19:17:31.69 -39:55:29.90  ASASSN-26dz  2026-07-5.14 15.91
19:14:31.37 +12:03:52.90  AT 2026rdg  2026-07-3.43 11.81
04:05:50.09 -70:24:34.40  AT 2026qpr  2026-06-30.4 15.96
13:45:37.49 -05:59:35.80  SN 2026pub  2026-06-30.09 16.01
16:41:15.63 +39:17:14.70  SN 2026pel  2026-06-26.38 16.07
10:14:40.19 -35:38:21.30  ASASSN-26dy  2026-06-25.99 15.63
14:47:21.56 -40:15:51.30  ASASSN-26dv  2026-06-23.03 14.62
13:38:49.79 -77:21:06.70  ASASSN-26dw  2026-06-23.04 16.09
00:59:27.90 +33:08:13.20  SN 2026mke  2026-06-22.39 17.13
11:10:44.73 -30:20:45.50  SN 2026nmv  2026-06-22.06 16.56
21:36:15.68 -21:19:12.50  AT2026oxh  2026-06-22.15 17.14
17:31:38.38 -56:05:51.90  ASASSN-26dx  2026-06-22.02 14.72
14:10:13.44 -38:46:46.10  AT2026pvk  2026-06-22.06 16.53
20:56:47.23 -18:31:05.20  AT2026plb  2026-06-21.31 16.4
15:44:29.68 +21:00:59.30  SN2026ore  2026-06-21.29 17.57
23:50:05.98 -14:01:41.30  AT2026oxl  2026-06-21.52 17.64
17:36:54.73 -18:10:04.20  AT2026ouj  2026-06-20.92 15.15
00:34:04.08 -30:22:09.20  AT2026ntk  2026-06-18.09 17.34
20:49:13.39 +25:17:59.20  ASASSN-26du  2026-06-15.39 15.93
23:09:30.84 +32:40:42.00  SN2026oxc  2026-06-14.35 16.83
02:02:26.78 +32:04:21.30  AT2026ovz  2026-06-14.59 15.39
21:26:28.11 -72:31:19.50  AT2026nwc  2026-06-11 17.05
17:54:57.33 +26:32:34.20  SN 2026odc  2026-06-11.23 17.62
13:55:59.94 +17:30:37.20  SN 2026nyq  2026-06-11.1 16.24
00:50:45.14 -71:38:36.90  ASASSN-26dt  2026-06-11.13 10.22
14:42:19.73 +19:11:35.60  SN2026nyp  2026-06-10.3 16.32
12:23:23.92 +12:56:43.50  SN2026mta  2026-06-8.29 16.69
12:30:18.51 +47:12:33.20  SN2026oao  2026-06-9.32 17.02
10:51:05.21 -42:28:56.60  AT2026nvf  2026-06-8.12 16.75
13:50:22.48 -07:35:00.00  SN2026npn  2026-06-8.02 17.58
00:56:07.17 +43:01:43.20  ASASSN-26dq  2026-06-7.43 13.58
01:07:49.46 +41:59:43.70  SN 2026obc  2026-06-7.43 15.15
21:11:25.22 +14:14:31.90  ASASSN-26dr  2026-06-7.24 16.24
06:21:27.06 -65:16:42.00  ASASSN-26ds  2026-06-2.97 15.02
20:07:38.15 -21:07:05.40  SN2026mho  2026-05-25.18 -1.12
11:29:42.55 +79:01:03.10  AT2026min  2026-05-24.21 16.63
11:44:32.95 -68:48:30.00  ASASSN-26no  2026-05-24 8.41
19:00:42.82 -48:31:01.60  ASASSN-26dp  2026-05-22.31 -3.28
14:23:56.72 -58:37:47.60  ASASSN-26dn  2026-05-20.01 14.64
11:24:54.06 +47:57:01.60  AT2026nma  2026-05-20.29 15.46
21:27:08.58 +33:24:38.10  AT2026lli  2026-05-19.34 15.86
00:31:01.41 -13:38:51.70  AT2026nad  2026-05-19.39 15.34
15:16:06.61 -79:16:32.40  ASASSN-26dm  2026-05-19.03 14.44
11:24:25.21 -59:23:19.10  ASASSN-26dl  2026-05-18.02 13.55
13:45:51.52 -53:16:01.00  ASASSN-26dk  2026-05-18.16 12.96
02:05:49.69 -30:29:09.60  ASASSN-26dh  2026-05-18.43 15.37
-rw-r--r-- 1 apache apache 5.7K Sep  1 05:50 asassn_transients_list.txt
############################################################
Truncated list of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html :
02:19:17.36 +28:57:15.8  TCP J02191736+2857158  2026-07-12.3549  12.5mag
00:44:56.43 +41:57:41.6  PNV J00445643+4157416  2026-07-13.8026  17.98Cmag
00:42:55.36 +41:17:27.0  PNV J00425536+4117270  2026-07-20.1813  17.7mag
20:35:43.64 +61:31:32.9  TCP J20354364+6131329  2026-07-20.5443  14.4mag
21:17:31.48 +22:25:51.0  TCP J21173148+2225510  2026-07-23.5577  14.8mag
00:41:24.04 +40:49:02.8  PNV J00412404+4049028  2026-07-25.0157  18.7mag
00:43:04.26 +41:02:28.6  PNV J00430426+4102286  2026-07-26.1512  20mag
14:51:51.40 +66:13:24.0  TCP J14515140+6613240  2026-07-29.2561  13.5mag
00:43:06.15 +41:22:08.2  PNV J00430615+4122082  2026-07-30.0085  19.4mag
00:41:33.23 +41:10:12.2  PNV J00413323+4110122  2026-08-02.8913  17.1mag
05:21:07.63 +23:38:19.4  TCP J05210763+2338194  2026-08-06.4109  11.2mag
22:57:17.96 +47:07:41.8  TCP J22571796+4707418  2026-08-09.3289  14.3mag
09:13:38.17 +76:28:18.1  PSN J09133817+7628181  2026-08-09.8037  15.4mag
00:43:17.29 +41:26:48.6  PNV J00431729+4126486  2026-08-14.0920  16.8mag
00:42:52.82 +41:10:58.6  PNV J00425282+4110586  2026-08-17.7723  19.9mag
00:42:52.83 +41:10:59.6  PNV J00425283+4110596  2026-08-18.6119  19.3mag
18:25:12.76 -22:25:29.3  TCP J18251276-2225293  2026-08-19.1062  9.4mag
18:03:09.04 +12:18:14.0  TCP J18030904+1218140  2026-08-19.5199  14.9mag
19:45:06.48 +18:22:42.2  PNV J19450648+1822422  2026-08-25.1278  9.0mag
00:42:54.65 +41:22:59.3  PNV J00425465+4122593  2026-08-25.4712  18.9mag
-rw-r--r-- 1 apache apache 190K Sep  1 05:50 tocp_transients_list.txt
############################################################
Truncated list of recent TNS transients from https://www.wis-tns.org/ :
15:30:16.620 +37:33:54.04  SN 2026xzu  2026-08-07.31 18.869
22:06:45.694 +25:54:26.94  SN 2026xzt  2026-08-04.32 19.8154
14:46:07.623 +06:25:26.60  AT 2026xzs  2026-08-06.88 19.072
00:41:57.435 +01:37:29.15  AT 2026xzr  2026-08-06.19 19.25
00:13:38.500 +03:45:21.38  AT 2026xzq  2026-08-06.71 19.82
15:44:05.663 +62:31:02.12  AT 2026xzp  2026-08-07.30 19.137
15:23:07.561 +26:55:05.00  SN 2026xzo  2026-08-07.29 19.228
13:27:56.786 -31:29:17.86  AT 2026xzn  2026-08-06.74 18.953
23:05:36.390 -03:36:56.91  AT 2026xzm  2026-08-07.09 19.428
15:24:13.077 +54:48:58.02  AT 2026xzl  2026-08-04.29 19.12
05:43:45.299 -12:31:19.63  AT 2026xzk  2026-01-11.34 20.48
08:43:05.547 +25:32:19.55  AT 2026xzj  2026-01-11.58 20.89
16:22:31.145 +09:33:33.30  AT 2026xzi  2026-08-05.29 20.61
17:12:21.291 +21:02:54.44  AT 2026xzh  2026-08-05.34 20.95
16:19:36.299 +11:57:03.80  AT 2026xzg  2026-08-05.29 20.16
16:33:56.913 +13:58:08.26  AT 2026xzf  2026-08-05.29 21.06
17:03:57.056 +04:27:02.47  AT 2026xze  2026-08-05.28 20.78
17:51:27.713 +19:57:36.91  AT 2026xzd  2026-08-05.34 20.73
16:58:34.750 +12:37:35.05  AT 2026xzc  2026-08-05.29 21.81
16:57:45.366 -04:44:07.55  AT 2026xzb  2026-08-06.80 18.89
-rw-r--r-- 1 apache apache 88K Sep  1 05:50 tns_transients_list.txt

=== Transient Factory Profiling ===
Started: Tue Sep  1 05:49:35 CDT 2026
=======================================
TIMING SExtractor: 2 seconds
TIMING matching_and_photometry: 1 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 1 seconds
    VAST_RUN_default.sex.telephoto_lens_onlybrightstars_v1: 4s (0.07 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 45s (0.75 min)
    PLATE_VERIFY_AND_POINTING: 1s (0.02 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 6s (0.10 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: 3s (0.05 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_onlybrightstars_v1: 59s (0.98 min)
TIMING SExtractor: 8 seconds
TIMING matching_and_photometry: 6 seconds
TIMING lightcurve_write: 0 seconds
TIMING select_aperture: 3 seconds
    VAST_RUN_default.sex.telephoto_lens_vSTL: 22s (0.37 min)
    WCS_CACHE_SETUP: 0s (0.00 min)
    WCS_CALIBRATION_AND_EPHEMERIS: 1s (0.02 min)
    PLATE_VERIFY_AND_POINTING: 0s (0.00 min)
    UCAC5_PLATE_SOLVING: 0s (0.00 min)
    MAGNITUDE_CALIBRATION: 17s (0.28 min)
    MAGCAL_SANITY_CHECK: 0s (0.00 min)
      FILTER_MAGNITUDE_CONSOLIDATED: 0s (0.00 min)
      FILTER_FRAME_EDGE: 0s (0.00 min)
      FILTER_SECOND_EPOCH_VERIFY: 0s (0.00 min)
    CANDIDATE_FILTERING_TOTAL: 0s (0.00 min)
    EXCLUSION_LIST_PREPARATION: 0s (0.00 min)
    SEEING_AND_LIMITING_MAG: 2s (0.03 min)
    WAIT_FOR_UCAC5: 0s (0.00 min)
    WCS_IMAGE_ARCHIVING: 0s (0.00 min)
    HTML_REPORT: 0s (0.00 min)
  SE_CONFIG_default.sex.telephoto_lens_vSTL: 42s (0.70 min)
FIELD_Cas-01-Q2b1x1: 113s (1.88 min)
=======================================
TOTAL_RUNTIME: 127s (2.12 min)
Finished: Tue Sep  1 05:51:42 CDT 2026