C2023-A3-Tsuchinshan-Atlas

SIMPLE = T / file does conform to FITS standard
BITPIX = 20 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 6080 / length of data axis 1
NAXIS2 = 4048 / length of data axis 2
NAXIS3 = 3 / length of data axis 3
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
MIPS-HI = 8752 / Upper visualization cutoff
MIPS-LO = 0 / Lower visualization cutoff
BZERO = 0 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
DATE = '2024-10-23T20:20:01' / UTC date that FITS file was created
DATE-OBS= '2024-10-22T18:24:57' / YYYY-MM-DDThh????????ss observation start, UT
INSTRUME= 'Sony DSLR-A850' / instrument name
OBSERVER= 'FWR ' / observer name
TELESCOP= 'PENTACON DDR ' / telescope used to acquire this image
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
XPIXSZ = 5.86 / X pixel size microns
YPIXSZ = 5.86 / Y pixel size microns
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
FOCALLEN= 135/ Camera focal length
CCD-TEMP= 0 / CCD temp in C
SET-TEMP= 0 / Temperature setting in C
EXPTIME = 20 / Exposure time [s]
STACKCNT= 278 / Stack frames
LIVETIME= 5352 / Exposure time after deadtime correction
EXPSTART= 2.46061e+06 / Exposure start time (standard Julian date)
EXPEND = 2.46061e+06 / Exposure end time (standard Julian date)
APERTURE= 4/ Aperture of the instrument
ISOSPEED= 800 / ISO camera setting
CTYPE1 = 'RA---TAN' / Coordinate type for the first axis
CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis
CUNIT1 = 'deg ' / Unit of coordinates
CUNIT2 = 'deg ' / Unit of coordinates
EQUINOX = 2000. / Equatorial equinox
RA = 257.296564234 / Image center Right Ascension (deg)
DEC = 3.43795291787 / Image center Declination (deg)
CRPIX1 = 2024. / Axis1 reference pixel
CRPIX2 = 3040. / Axis2 reference pixel
CRVAL1 = 257.296564234 / Axis1 reference value (deg)
CRVAL2 = 3.43795291787 / Axis2 reference value (deg)
CDELT1 = -0.00251273736701492 / X pixel size (deg)
CDELT2 = 0.00251141293289153 / Y pixel size (deg)
HISTORY mean stacking with winsorized sigma clipping rejection (low=3.900 high=3
HISTORY .900), additive+scaling normalized input, normalized output, no image we
HISTORY ighting, equalized RGB
HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)
HISTORY Rehaussement de la saturation (quantit =1.00)
HISTORY Transf. histogramme (mid=0.001, lo=0.001, hi=1.000)
END