--- header unit 0: primary ---
SIMPLE = T
BITPIX = 16 / 8 unsigned int, 16 & 32 int, -32 & -64 real
NAXIS = 2 / number of axes
NAXIS1 = 2048 / fastest changing axis
NAXIS2 = 1360 / next to fastest changing axis
BSCALE = 1.0000000000000000 / physical = BZERO + BSCALE*array_value
BZERO = 32768.000000000000 / physical = BZERO + BSCALE*array_value
DATE-OBS = '2016-10-13T12:11:47' / [ISO 8601] UTC date/time of exposure start
EXPTIME = 4.11000000000E+000 / [sec] Duration of exposure
EXPOSURE = 4.11000000000E+000 / [sec] Duration of exposure
SET-TEMP = -35.000000000000000 / CCD temperature setpoint in C
CCD-TEMP = -35.338164270103647 / CCD temperature at start of exposure in C
XPIXSZ = 18.000000000000000 / Pixel Width in microns (after binning)
YPIXSZ = 18.000000000000000 / Pixel Height in microns (after binning)
XBINNING = 2 / Binning level along the X-axis
YBINNING = 2 / Binning level along the Y-axis
XORGSUBF = 0 / Subframe X position in binned pixels
YORGSUBF = 0 / Subframe Y position in binned pixels
IMAGETYP = 'Flat Field' / Type of image
FOCUSPOS = 1900 / Focuser position in steps
FOCUSSSZ = 0.00000000000000000 / Focuser step size in microns
FOCUSTEM = 0.00000000000000000 / Focuser temperature in deg C
JD = 2457675.0081828702 / Julian Date at start of exposure
FOCALLEN = 0.00000000000000000 / Focal length of telescope in mm
APTDIA = 0.00000000000000000 / Aperture diameter of telescope in mm
APTAREA = 0.00000000000000000 / Aperture area of telescope in mm^2
EGAIN = 1.2000000476837158 / Electronic gain in e-/ADU
SWCREATE = 'MaxIm DL Version 5.21 131112 0HR51' / Name of software that created
  the image
SBSTDVER = 'SBFITSEXT Version 1.0' / Version of SBFITSEXT standard in effect
OBJECT = '' / Target object name
TELESCOP = '' / Telescope name
INSTRUME = 'QHYCCD QHY11S' / Detector instrument name
OBSERVER = '' / Observer name
NOTES = ''
FLIPSTAT = ''
SWOWNER = 'gx521' / Licensed owner of software
HISTORY File was processed by PinPoint 5.1.8 at 2016-10-13T12:12:04
DATE = '13/10/16' / [old format] UTC date of exposure start
TIME-OBS = '12:11:47' / [old format] UTC time of exposure start
UT = '12:11:47' / [old format] UTC time of exposure start
TIMESYS = 'UTC' / Default time system
RADECSYS = 'FK5' / Equatorial coordinate system
CLRBAND = 'R' / [J-C std] Std. color band of image or C=Color