NMW transient search results

This analysis is done by the script util/transients/transient_factory_test31.sh /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3

The list of candidates will appear below. Please manually reload the page every few minutes untill the 'Processing complete' message appears.

Processing fields Cep-02-Q1b1x1

Processing complete!

Total number of candidates identified: 0

Processing log:

## VaST run with SExtractor config file default.sex.telephoto_lens_onlybrightstars_v1 ##
Images processed 4
Images used for photometry 3
Ref.  image: 2461032.68645909 23.12.2025 04:28:20.065   /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits
First image: 2461032.68645909 23.12.2025 04:28:20.065   /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits
Last  image: 2461061.76402391 21.01.2026 06:20:01.666   /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.67
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: 157 seconds
Number of parallel threads: 24
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
Total objects detected (at least 2 times):  16130
Objects passed selection criteria:  16113
Measurements per detected object (mean, median, min, max):    2.8    3.0    2    3
Measurements per selected object (mean, median, min, max):    2.8    3.0    2    3
Average stars detected per image: 15889
Average stars matched: 15554.7 (97.8958 %)
Memory usage VmPeak:   118036 kB
Software: VaST 1.0rc89 compiled with gcc (Gentoo 15.2.1_p20251122 p4) 15.2.1 20251122
VaST compiled on  Wed Jan 14 09:05:05 CST 2026
VaST build number  1.0rc88-183-g45c3f81a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-01-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Wed Jan 21 04:47:14 CST 2026
Host name: tau
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################
## VaST run with SExtractor config file default.sex.telephoto_lens_vSTL ##
Images processed 4
Images used for photometry 3
Ref.  image: 2461032.68645909 23.12.2025 04:28:20.065   /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits
First image: 2461032.68645909 23.12.2025 04:28:20.065   /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits
Last  image: 2461061.76402391 21.01.2026 06:20:01.666   /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits
JD time system (TT/UTC/UNKNOWN): UTC
FILTER key from ref. img. header: CV
Magnitude scale: instrumental
Estimated ref. image limiting mag.:  -7.38
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: 258 seconds
Number of parallel threads: 24
SExtractor parameter file: default.sex
Some important SExtractor parameters:
DETECT_MINAREA  2.0             # minimum number of pixels above threshold
DETECT_THRESH   2.1             #  or , in mag.arcsec-2
ANALYSIS_THRESH 2.1             #  or , in mag.arcsec-2
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
Total objects detected (at least 2 times):  104395
Objects passed selection criteria:  104253
Measurements per detected object (mean, median, min, max):    2.8    3.0    2    3
Measurements per selected object (mean, median, min, max):    2.8    3.0    2    3
Average stars detected per image: 104213
Average stars matched: 100710 (96.638 %)
Memory usage VmPeak:  1886312 kB
Software: VaST 1.0rc89 compiled with gcc (Gentoo 15.2.1_p20251122 p4) 15.2.1 20251122
VaST compiled on  Wed Jan 14 09:05:05 CST 2026
VaST build number  1.0rc88-183-g45c3f81a
OpenMP enabled: Yes
SExtractor version 2.19.5 (2026-01-14)
GNU bash, version 5.3.9(1)-release (x86_64-pc-linux-gnu)
Processing completed on  Wed Jan 21 04:51:54 CST 2026
Host name: tau
***** IMAGE PROCESSING ERROR (less than 4 images processed) *****
############################################################

Filtering log:

######## Processing parameters ########
AAVSO_COMMENT_STRING= NMW-TexasTech Camera-1 135mm f/2.2 telephoto lens + QHY600M CMOS
ASTCHECK_ASTEROID_SEARCH_RADIUS_ARCSEC= 
BAD_REGION_FILE= /var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_bad_region.lst
CAMERA_SETTINGS= TTUQ1b1x1
CHECK_POINTING_ACCURACY= yes
DARK_FRAMES_DIR= /var/www/nmw_calibration/TTUQ1b1x1/darks
EXCLUSION_LIST= ../exclusion_list_TTUQ1.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= 14.5
FLAT_FIELD_FILE= /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2025-12-22.fit
FRAME_EDGE_OFFSET_PIX= 25
GAIA_BAND_FOR_CATALOGED_SOURCE_CHECK= 
MAX_NEW_TO_REF_MEAN_IMG_VALUE_RATIO= 100
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= 500
NMW_CALIBRATION= /var/www/nmw_calibration
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_HARD_LIMIT= 3000
NUMBER_OF_DETECTED_TRANSIENTS_BEFORE_FILTERING_SOFT_LIMIT= 2000
OMP_NUM_THREADS= 
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= 3.5
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= 
#######################################
Reference image directory is set to /mnt/usb2/NMW-TexasTech/reference_imgs
VIZIER_SITE=vizier.cds.unistra.fr
INFO: MAKE_PNG_PLOTS is set to yes
FITS_FILE_EXT=fits
CALIBRATION_STATUS_PREFIX=
Fields in the data directory: 
Cep-02-Q1b1x1
#######################################
########### Starting Cep-02-Q1b1x1 ###########
Processing Cep-02-Q1b1x1
server tau has sufficient free disk space available: 131642 MB at /mnt/usb2/NMW-TexasTech/workdir
server tau has sufficient free disk space available: 131642 MB at .
Checking input images (2 new)
REFERENCE_EPOCH__FIRST_IMAGE= /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits
REFERENCE_EPOCH__SECOND_IMAGE= /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits
Small preview (one of the new images): 
Large previews of the second-epoch (new) images:
MAKE_PNG_PLOTS=yes
renamed 'Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.png' -> 'transient_report/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits_preview.png'
Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits

renamed 'Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.png' -> 'transient_report/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits_preview.png'
Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.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= 634.1531 INFO: REFERENCE_EPOCH__FIRST_IMAGE_SD= 690.6635 INFO: SECOND_EPOCH__FIRST_IMAGE_MEAN_VALUE= 1365.6677 INFO: SECOND_EPOCH__FIRST_IMAGE_SD= 703.2342 INFO: SECOND_EPOCH__SECOND_IMAGE_MEAN_VALUE= 1436.4581 INFO: SECOND_EPOCH__SECOND_IMAGE_SD= 644.7811 ---------------------------------------------- INFO: ref_to_second_epoch_img_mean_ratio= 2.15353 INFO: SECOND_EPOCH__SD_ratio= 0.091 ---------------------------------------------- Calibration settings: DARK_FRAMES_DIR=/var/www/nmw_calibration/TTUQ1b1x1/darks FLAT_FIELD_FILE=/var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2025-12-22.fit EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= -15.0 / [degC] CCD temperature setpoint CCD-TEMP= -14.9 / [degC] CCD temperature Exploring image header: /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits CCD-TEMP= -14.900000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits SET-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits Header: 61 keys total, 10 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= '2026-01-21T00:20:01.6664180' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-01-21T06:20:01.6664180' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61061.2639081711 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-01-21T06:20:11.5671339' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61061.2640227661 / 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-33d3d743814b8b447' / Imaging instrument identifier" status=0 Record 24: "SET-TEMP= -15.0 / [degC] CCD temperature setpoint" status=0 Record 25: "CCD-TEMP= -14.9 / [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-TTU1' / 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 = 349.518218525916 / [deg] RA of telescope" status=0 Record 32: "DEC = 77.766010113228 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 26.4683333333333 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 348.826666666667 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 2.23492989898193 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'East' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1013.0 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.748239 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958391 / [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 = 'Cep-02' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '00 00 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+77 30 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: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0 Record 50: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0 Record 51: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0 Record 52: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0 Record 53: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0 Record 54: "QHY_LP = 85000.0 / [ns] linePeriod" status=0 Record 55: "GPS_LP = 85000.0 / [ns] linePeriod" status=0 Record 56: "QHY_FP = 20000160.0 / [us] framePeriod" status=0 Record 57: "QHY_CPL = 6120.0 / clocksPerLine" status=0 Record 58: "QHY_LPF = 235295.0 / linesPerFrame" status=0 Record 59: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0 Record 60: "QHY_LEM = T / isLongExposureMode" status=0 Record 61: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0 Allocating memory for image, dark and result arrays... Reading image /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits 9576 6388 16 bitpix SET-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits SET-TEMP= -15.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit CCD-TEMP= -14.900000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits CCD-TEMP= -15.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit 9576 6388 16 bitpix Dark frame is subtracted, output is written to /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/d_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits :) Spent 0.418498 seconds renamed 'mdark_TTUQ1b1x1_-15C_20s_2026-01-08.png' -> 'transient_report/dark.png' MegaDivider v7 Reading image /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/d_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits 9576 6388 16 bitpix Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2025-12-22.fit 9576 6388 16 bitpix Avarage count on flat field image: 38918.354428 Minimal real count (from overscan): 5 Output is written to /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits :) No overscan detected - all values seem high! (left_median=27736.5, right_median=26453.5) renamed 'mff_TTUQ1b1x1_2025-12-22.png' -> 'transient_report/flat.png' Using calibrated image CALIBRATED_SECOND_EPOCH__FIRST_IMAGE=/mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits EXPTIME = 20.0 / [s] Exposure duration SET-TEMP= -15.0 / [degC] CCD temperature setpoint CCD-TEMP= -15.0 / [degC] CCD temperature Exploring image header: /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits CCD-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits SET-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits Header: 61 keys total, 10 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= '2026-01-21T04:33:08.4021210' / Time of observation (local)" status=0 Record 12: "DATE-OBS= '2026-01-21T10:33:08.4021210' / Time of observation (UTC)" status=0 Record 13: "MJD-OBS = 61061.4396805787 / Modified Julian Date of observation" status=0 Record 14: "DATE-AVG= '2026-01-21T10:33:18.2990365' / Averaged midpoint time (UTC)" status=0 Record 15: "MJD-AVG = 61061.4397951271 / 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-33d3d743814b8b447' / Imaging instrument identifier" status=0 Record 24: "SET-TEMP= -15.0 / [degC] CCD temperature setpoint" status=0 Record 25: "CCD-TEMP= -15.0 / [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-TTU1' / 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 = 8.25642891253649 / [deg] RA of telescope" status=0 Record 32: "DEC = 77.6657771177848 / [deg] Declination of telescope" status=0 Record 33: "CENTALT = 21.7786111111111 / [deg] Altitude of telescope" status=0 Record 34: "CENTAZ = 357.414722222222 / [deg] Azimuth of telescope" status=0 Record 35: "AIRMASS = 2.67879558457145 / Airmass at frame center (Gueymard 1993)" status=0 Record 36: "PIERSIDE= 'East' / Telescope pointing state" status=0 Record 37: "SITEELEV= 1013.0 / [m] Observation site elevation" status=0 Record 38: "SITELAT = 33.748239 / [deg] Observation site latitude" status=0 Record 39: "SITELONG= -101.958391 / [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 = 'Cep-02' / Name of the object of interest" status=0 Record 46: "OBJCTRA = '00 00 00' / [H M S] RA of imaged object" status=0 Record 47: "OBJCTDEC= '+77 30 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: "ROWORDER= 'TOP-DOWN' / FITS Image Orientation" status=0 Record 50: "EQUINOX = 2000.0 / Equinox of celestial coordinate system" status=0 Record 51: "SWCREATE= 'N.I.N.A. 3.2.0.9001 (x64)' / Software that created this file" status=0 Record 52: "QHY_EXP = 20.000096 / [s] Actual exposure time" status=0 Record 53: "QHY_PP = 13888.0 / [ps] pixelPeriod" status=0 Record 54: "QHY_LP = 85000.0 / [ns] linePeriod" status=0 Record 55: "GPS_LP = 85000.0 / [ns] linePeriod" status=0 Record 56: "QHY_FP = 20000160.0 / [us] framePeriod" status=0 Record 57: "QHY_CPL = 6120.0 / clocksPerLine" status=0 Record 58: "QHY_LPF = 235295.0 / linesPerFrame" status=0 Record 59: "QHY_AET = 20000096.0 / [us] actualExposureTime" status=0 Record 60: "QHY_LEM = T / isLongExposureMode" status=0 Record 61: "QHY_OFF0= 3767.777 / [us] RollingShutterEndOffset row 0" status=0 Allocating memory for image, dark and result arrays... Reading image /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits 9576 6388 16 bitpix SET-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits SET-TEMP= -15.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit CCD-TEMP= -15.000000 for /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits CCD-TEMP= -15.000000 for /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit Reading dark frame /var/www/nmw_calibration/TTUQ1b1x1/darks/mdark_TTUQ1b1x1_-15C_20s_2026-01-08.fit 9576 6388 16 bitpix Dark frame is subtracted, output is written to /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/d_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits :) Spent 0.421106 seconds renamed 'mdark_TTUQ1b1x1_-15C_20s_2026-01-08.png' -> 'transient_report/dark.png' MegaDivider v7 Reading image /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/d_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits 9576 6388 16 bitpix Reading flat /var/www/nmw_calibration/TTUQ1b1x1/flats/mff_TTUQ1b1x1_2025-12-22.fit 9576 6388 16 bitpix Avarage count on flat field image: 38918.354428 Minimal real count (from overscan): 5 Output is written to /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits :) No overscan detected - all values seem high! (left_median=27736.5, right_median=26453.5) renamed 'mff_TTUQ1b1x1_2025-12-22.png' -> 'transient_report/flat.png' Using calibrated image CALIBRATED_SECOND_EPOCH__SECOND_IMAGE=/mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.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=/mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits SECOND_EPOCH__SECOND_IMAGE=/mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits Previews of the CALIBRATED second-epoch images:

fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits


fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits


Updating neverexclude_list.txt '/var/www/nmw_calibration/neverexclude_list.txt' -> './neverexclude_list.txt' Choosing bad regions list '/var/www/nmw_calibration/TTUQ1b1x1/TTUQ1_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 --norotation --starmatchraius 3.5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits VaST run complete with default.sex.telephoto_lens_onlybrightstars_v1 The four input images were /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits Last image: 2461061.76402391 21.01.2026 06:20:01.666 UTC ERROR running VaST on the field Cep-02-Q1b1x1 (less than 4 images processed) exp_start= 23.12.2025 04:28:20.065 exp= 20.000 JD= 2461032.68645909 ap= 6.1 rotation= 0.000 *detected= 17010 *matched= 17010 status=OK /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits exp_start= 23.12.2025 04:29:26.824 exp= 20.000 JD= 2461032.68723176 ap= 6.2 rotation= -0.010 *detected= 16917 *matched= 16013 status=OK /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits exp_start= 21.01.2026 06:20:01.666 exp= 20.000 JD= 2461061.76402391 ap= 6.2 rotation= -0.630 *detected= 13740 *matched= 13641 status=OK /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits exp_start= 21.01.2026 10:33:08.402 exp= 20.000 JD= 2461061.93979632 ap= 6.3 rotation= 175.500 *detected= 12049 *matched= 69 status=ERROR /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits wait *------ default.sex.telephoto_lens_vSTL ------* 'default.sex.telephoto_lens_vSTL' -> 'default.sex' Starting VaST with default.sex.telephoto_lens_vSTL ./vast --norotation --starmatchraius 3.5 --matchstarnumber 500 --selectbestaperture --sysrem 0 --type 4 --maxsextractorflag 99 --UTC --nofind --nojdkeyword /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits VaST run complete with default.sex.telephoto_lens_vSTL The four input images were /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits Last image: 2461061.76402391 21.01.2026 06:20:01.666 UTC ERROR running VaST on the field Cep-02-Q1b1x1 (less than 4 images processed) exp_start= 23.12.2025 04:28:20.065 exp= 20.000 JD= 2461032.68645909 ap= 4.8 rotation= 0.000 *detected= 111216 *matched= 111216 status=OK /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-28-20_20.00sec_-15.00C_LIGHT_0176.fits exp_start= 23.12.2025 04:29:26.824 exp= 20.000 JD= 2461032.68723176 ap= 4.8 rotation= -0.010 *detected= 111251 *matched= 101992 status=OK /mnt/usb2/NMW-TexasTech/reference_imgs/Cep-02-Q1b1x1_2025-12-22_22-29-26_20.00sec_-14.90C_LIGHT_0177.fits exp_start= 21.01.2026 06:20:01.666 exp= 20.000 JD= 2461061.76402391 ap= 4.9 rotation= -0.630 *detected= 90173 *matched= 88921 status=OK /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_00-20-01_20.00sec_-14.90C_LIGHT_0292.fits exp_start= 21.01.2026 10:33:08.402 exp= 20.000 JD= 2461061.93979632 ap= 5.0 rotation= 181.970 *detected= 76869 *matched= 5025 status=ERROR /mnt/usb2/NMW-TexasTech/workdir/img_2026-01-21_CI_Cep-02-Q1b1x1_043352_TTUQ1b1x1_6715_Hew98VZ3/fd_Cep-02-Q1b1x1_2026-01-21_04-33-08_20.00sec_-15.00C_LIGHT_0502.fits ########### Completed Cep-02-Q1b1x1 ########### The analysis was running at tau We are allowed to update the exclusion list at tau host Found ../exclusion_list_TTUQ1.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 500 ############################################################ ls: cannot access 'planets.txt': No such file or directory ############################################################ Positions of selected moons from JPL HORIZONS for JD(UT): ls: cannot access 'moons.txt': No such file or directory ############################################################ Positions of selected spacecraft from JPL HORIZONS for JD(UT): ls: cannot access 'spacecraft.txt': No such file or directory ############################################################ ls: cannot access 'comets.txt': No such file or directory ############################################################ List of recent ASAS-SN transients from https://www.astronomy.ohio-state.edu/asassn/transients.html : ls: cannot access 'asassn_transients_list.txt': No such file or directory ############################################################ List of TOCP transients from http://www.cbat.eps.harvard.edu/unconf/tocp.html : ls: cannot access 'tocp_transients_list.txt': No such file or directory
CPU temperature: 95 C - WARNING