--- header unit 0: primary ---
SIMPLE = T
BITPIX = 16 / 8 unsigned int, 16 & 32 int, -32 & -64 real
NAXIS = 2 / number of axes
NAXIS1 = 1674 / fastest changing axis
NAXIS2 = 1248 / next to fastest changing axis
BSCALE = 1.0000000000000000 / physical = BZERO + BSCALE*array_value
BZERO = 32768.000000000000 / physical = BZERO + BSCALE*array_value
DATE-OBS = '2017-06-04T18:36:45' / [ISO 8601] UTC date/time of exposure start
EXPTIME = 4.00000000000E+001 / [sec] Duration of exposure
EXPOSURE = 4.00000000000E+001 / [sec] Duration of exposure
SET-TEMP = -30.000000000000000 / CCD temperature setpoint in C
CCD-TEMP = -30.006373628069696 / CCD temperature at start of exposure in C
XPIXSZ = 10.800000000000001 / Pixel Width in microns (after binning)
YPIXSZ = 10.800000000000001 / 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 = 'Light Frame' / Type of image
FOCUSPOS = 3600 / Focuser position in steps
FOCUSSSZ = 2.0320000648498535 / Focuser step size in microns
FOCUSTEM = 9.8999996185302734 / Focuser temperature in deg C
JD = 2457909.2755208332 / 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 = 1.0000000000000000 / Electronic gain in e-/ADU
SWCREATE = 'MaxIm DL Version 5.21 131112 2C57P' / Name of software that created
  the image
SBSTDVER = 'SBFITSEXT Version 1.0' / Version of SBFITSEXT standard in effect
OBJECT = 'NGC 5520' / Target object name
TELESCOP = 'ACP->TheSky' / Telescope name
INSTRUME = 'ASCOM QHY9 Driver' / Detector instrument name
OBSERVER = 'Xing Gao' / Observer name
NOTES = ''
FLIPSTAT = 'Flip/Mirror'
SWMODIFY = 'MaxIm DL Version 5.21 131112 2C57P' / Name of software that modified
  the image
HISTORY Edit Flip
HISTORY Edit Mirror
CSTRETCH = 'Medium' / Initial display stretch mode
CBLACK = 10255 / Initial display black level in ADUs
CWHITE = 11869 / Initial display white level in ADUs
PEDESTAL = 0 / Correction to add for zero-based ADU
SWOWNER = 'gaoxing' / Licensed owner of software
PIERSIDE = 'EAST'
IMGROLL = 'Y'
HISTORY File was processed by PinPoint 6.0.6 at 2017-06-04T18:37:40
DATE = '04/06/17' / [old format] UTC date of exposure start
TIME-OBS = '18:36:45' / [old format] UTC time of exposure start
UT = '18:36:45' / [old format] UTC time of exposure start
TIMESYS = 'UTC' / Default time system
RADECSYS = 'FK5' / Equatorial coordinate system
AIRMASS = 1.17996708665E+000 / Airmass (multiple of zenithal airmass)
ST = '17 19 55.76' / Local apparent sidereal time of exp. start
LAT-OBS = 4.34708333333E+001 / [deg +N WGS84] Geodetic latitude
LONG-OBS = 8.71777777778E+001 / [deg +E WGS84] Geodetic longitude
ALT-OBS = 2.08000000000E+003 / [metres] Altitude above mean sea level
OBSERVAT = 'Xingming Observatory - SASP' / Observatory name
RA = '14 12 22.72' / [hms J2000] Target right ascension
OBJCTRA = '14 12 22.72' / [hms J2000] Target right ascension
DEC = '+50 20 55.0' / [dms +N J2000] Target declination
OBJCTDEC = '+50 20 55.0' / [dms +N J2000] Target declination