--- header unit 0: primary ---
SIMPLE = T
BITPIX = 16 / 8 unsigned int, 16 & 32 int, -32 & -64 real
NAXIS = 2 / number of axes
NAXIS1 = 4096 / fastest changing axis
NAXIS2 = 4096 / next to fastest changing axis
BSCALE = 1.0000000000000000 / physical = BZERO + BSCALE*array_value
BZERO = 32768.000000000000 / physical = BZERO + BSCALE*array_value
DATE-OBS = '2024-07-21T02:47:57' / YYYY-MM-DDThh:mm:ss observation start, UT
EXPTIME = 0.00000000000000000 / Exposure time in seconds
EXPOSURE = 0.00000000000000000 / Exposure time in seconds
CCD-TEMP = -30.000000000000000 / CCD temperature at start of exposure in C
XPIXSZ = 9.0000000000000000 / Pixel Width in microns (after binning)
YPIXSZ = 9.0000000000000000 / Pixel Height in microns (after binning)
XBINNING = 1 / Binning factor in width
YBINNING = 1 / Binning factor in height
XORGSUBF = 0 / Subframe X position in binned pixels
YORGSUBF = 0 / Subframe Y position in binned pixels
READOUTM = '8 MHz' / Readout mode of image
IMAGETYP = 'Bias Frame' / Type of image
FOCUSPOS = 13554 / Focuser position in steps
FOCUSTEM = 12.312500000000000 / Focuser temperature in deg C
SITELAT = '45 59 04' / Latitude of the imaging location
SITELONG = '07 47 09' / Longitude of the imaging location
JD = 2460512.6166319447 / Julian Date at start of exposure
FOCALLEN = 2220.0000000000000 / Focal length of telescope in mm
APTDIA = 600.00000000000000 / Aperture diameter of telescope in mm
APTAREA = 197213.48431706429 / Aperture area of telescope in mm^2
SWCREATE = 'MaxIm DL Version 5.23 131123 27MPJ' / Name of software that created
  the image
SBSTDVER = 'SBFITSEXT Version 1.0' / Version of SBFITSEXT standard in effect
OBJECT = ''
TELESCOP = '' / telescope used to acquire this image
INSTRUME = 'FLI' / instrument or camera used
OBSERVER = ''
NOTES = ''
FLIPSTAT = ''
CSTRETCH = 'Medium' / Initial display stretch mode
CBLACK = 1020 / Initial display black level in ADUs
CWHITE = 1042 / Initial display white level in ADUs
PEDESTAL = 0 / Correction to add for zero-based ADU
SWOWNER = 'Michael Affolter' / Licensed owner of software