--- header unit 0: primary ---
SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 0 / number of data axes
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
CHECKSUM = '3aB45ZA23aA23YA2' / HDU checksum updated 2018-09-30T04:31:46
DATASUM = '         0' / data unit checksum updated 2018-09-30T04:31:46
--- header unit 1: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 32 / width of table in bytes
NAXIS2 = 4032 / number of rows in table
PCOUNT = 10020136 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 4 / number of fields in each row
TTYPE1 = 'COMPRESSED_DATA' / label for field 1
TFORM1 = '1PB(2743)' / data format of field: variable length array
TTYPE2 = 'ZSCALE' / label for field 2
TFORM2 = '1D' / data format of field: 8-byte DOUBLE
TTYPE3 = 'ZZERO' / label for field 3
TFORM3 = '1D' / data format of field: 8-byte DOUBLE
ZIMAGE = T / extension contains compressed image
ZTILE1 = 4096 / size of tiles to be compressed
ZTILE2 = 1 / size of tiles to be compressed
ZCMPTYPE = 'RICE_ONE' / compression algorithm
ZNAME1 = 'BLOCKSIZE' / compression block size
ZVAL1 = 32 / pixels per block
ZNAME2 = 'BYTEPIX' / bytes per pixel (1, 2, 4, or 8)
ZVAL2 = 4 / bytes per pixel (1, 2, 4, or 8)
EXTNAME = 'COMPRESSED_IMAGE'
ZSIMPLE = T / conforms to FITS standard
ZBITPIX = -32 / Bits per pixel
ZNAXIS = 2 / number of array dimensions
ZNAXIS1 = 4096
ZNAXIS2 = 4032
RADEC = 'Y' / Get RADEC from telescope or not
RA-OBS = '09:07:42.18' / right ascension (2000.)
DEC-OBS = '+51:44:59.0' / declination
CCD_NO = 1
DATE-OBS = '2017-04-29' / UTC shutter opened
TIME-OBS = '04:59:49.643' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 250.0 / Exposure time (seconds)
HA = '+02:54:07' / hour angle
ST = '12:02:51' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'g' / Filter name
FOCUSVAL = '*0.639*0.644*0.712' / Focus
OBJECT = '28633'
IMAGETYP = 'object'
INSTRUME = '90prime' / Instrument name
RDNOISE = '8.85 9.24 8.56 7.75' / (e-) for hdu id: 1 2 3 4
GAINONE = '1.54 1.72 1.59 1.61' / (e-/DN) for hdu id: 1 2 3 4
GAIN = 250.0 / exptime as gain
FILENAME = 'TempImage2402.fits' / FLATFILE
OBSERVER = 'Zhimin Zhou, Junjie Jin, Fengwu Sun' / OPERATOR='None'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -134.7 / Camera temperature in C
DEWTEMP = -193.056 / Dewar temperature in C
READ_SPD = '38' / Readout speed (kpixel/sec/amp)
TEMPS1 = '' / Temps
WEATHER0 = '' / WIND_SPEED_MPH
COMMENT ==================================================================
COMMENT WCS
COMMENT ==================================================================
EQUINOX = 2000.0 / Equinox of WCS
WCSDIM = 2 / WCS Dimensionality
CTYPE1 = 'RA---TAN' / l_sun=122.85
CTYPE2 = 'DEC--TAN' / b_sun=33.53
CRVAL1 = 136.9255797999 / l_gal=166.41
CRVAL2 = 51.74832551362 / b_gal=41.82
CRPIX1 = 4363.814877736 / Azimuth=315.04
CRPIX2 = -63.10906302886 / Altitude=52.87
CD1_1 = -0.0001256842811533 / Coordinate matrix
CD1_2 = -6.162087830281E-08 / Coordinate matrix
CD2_1 = 4.338465727884E-07 / Coordinate matrix
CD2_2 = 0.0001257058076566 / Coordinate matrix
AIRMASS = 1.253
MPHASE = 10.8 / Define the length of Moon_Month 29.53d
MAZIMUTH = 292.68 / Moon Azimuth is measured from south thr. west
MALITIUD = -1.77 / both units in degrees
MANGLE = 58.9 / Position angle of Moon to CCD_Field center
SKY = 6.72 / (e-/s per pixel)
SKYRMS = 0.18
SATURATE = 240.0 / 40000adu*gain/exptime
MJD_OBS = 57872.20821
ORIGIN = 3.0 / BASS Image Process Version
BASS-TLM = '2018-09-30T03:55:01' / Time of last modification
ZQUANTIZ = 'SUBTRACTIVE_DITHER_2' / Pixel Quantization Algorithm
HISTORY Image was compressed by CFITSIO using scaled integer quantization:
HISTORY q = 4.000000 / quantized level scaling parameter
HISTORY 'SUBTRACTIVE_DITHER_2' / Pixel Quantization Algorithm
ZDITHER0 = 3033 / dithering offset when quantizing floats
TTYPE4 = 'GZIP_COMPRESSED_DATA' / label for field
TFORM4 = '1PB(115)' / format of field
CHECKSUM = 'd3kCd1hAd1hAd1hA' / HDU checksum updated 2018-12-01T00:37:44
DATASUM = '1657766071' / data unit checksum updated 2018-12-01T00:37:44
ZHECKSUM = 'dX4LeU4KdU4KdU4K' / HDU checksum updated 2018-11-30T16:37:43
ZDATASUM = '2512066111' / data unit checksum updated 2018-10-09T20:41:34
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.001016401746753 / Projection distortion parameter
PV1_1 = 1.005008048344 / Projection distortion parameter
PV1_2 = 0.001819882488921 / Projection distortion parameter
PV1_4 = 0.0005529429326584 / Projection distortion parameter
PV1_5 = -7.55435731618E-05 / Projection distortion parameter
PV1_6 = 0.0006771206259587 / Projection distortion parameter
PV1_7 = -0.0137594903866 / Projection distortion parameter
PV1_8 = -0.001006998738831 / Projection distortion parameter
PV1_9 = -0.01229544960034 / Projection distortion parameter
PV1_10 = -0.002640581854011 / Projection distortion parameter
PV1_12 = -0.0007510200338045 / Projection distortion parameter
PV1_13 = 0.0002111798763263 / Projection distortion parameter
PV1_14 = -0.001254093879411 / Projection distortion parameter
PV1_15 = -0.001394829380454 / Projection distortion parameter
PV1_16 = 0.002884545570089 / Projection distortion parameter
PV2_0 = -0.0009843510286042 / Projection distortion parameter
PV2_1 = 1.004755798209 / Projection distortion parameter
PV2_2 = 0.002121066335971 / Projection distortion parameter
PV2_4 = -0.0007800866811901 / Projection distortion parameter
PV2_5 = -0.0006034668656781 / Projection distortion parameter
PV2_6 = -0.0004363443750288 / Projection distortion parameter
PV2_7 = -0.01013446089839 / Projection distortion parameter
PV2_8 = 0.0008400304482351 / Projection distortion parameter
PV2_9 = -0.01154378220342 / Projection distortion parameter
PV2_10 = -6.2102982779980E-05 / Projection distortion parameter
PV2_12 = -0.004922353664867 / Projection distortion parameter
PV2_13 = -0.001588252117665 / Projection distortion parameter
PV2_14 = -0.0008568330666267 / Projection distortion parameter
PV2_15 = -0.002191282151092 / Projection distortion parameter
PV2_16 = 0.0005009179876296 / Projection distortion parameter
FGROUPNO = 1 / SCAMP field group label
ASTIRMS1 = 0.0 / Astrom. dispersion RMS (intern., high S/N)
ASTIRMS2 = 0.0 / Astrom. dispersion RMS (intern., high S/N)
ASTRRMS1 = 0.0 / Astrom. dispersion RMS (ref., high S/N)
ASTRRMS2 = 0.0 / Astrom. dispersion RMS (ref., high S/N)
ASTINST = 1 / SCAMP astrometric instrument label
FLXSCALE = 0.004 / SCAMP relative flux scale
MAGZEROP = 0.0 / SCAMP zero-point
PHOTIRMS = 0.0 / mag dispersion RMS (internal, high S/N)
PHOTINST = 1 / SCAMP photometric instrument label
PHOTLINK = F / True if linked to a photometric field
CALI_REF = 'PS1' / the reference database for calibration
CCDZPT = 25.7619 / zero point for CCD
CCDZPTA = 25.7654 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 25.7345 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 25.7742 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 25.7609 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 25.7619 / photometric offset of the matched stars
CCDPHRMS = 0.039 / zpt rms of the matched objects in CCD
PHRMSA = 0.0369 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0335 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0244 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0271 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 9.6242 / FWHM in pixel
SEEING = 4.3694 / seeing in arcsec
RAOFF = 0.0379 / median positional offset from PS1, in arcsec
DECOFF = -0.1275 / median positional offset from PS1, in arcsec
TRANS = 0.8356 / median transparency.
CCDNSTAR = 5072.0 / total number of stars detected on a CCD
NMATCH = 275.0 / total number of matched stars in 2 arcsec
NMATCHA = 76.0 / number of matched stars in CCD ampA
NMATCHB = 56.0 / number of matched stars in CCD ampB
NMATCHC = 76.0 / number of matched stars in CCD ampC
NMATCHD = 67.0 / number of matched stars in CCD ampD
MDNCOL = 1.4497 / median (g-i) color of matched stars in CCD
COLT_PAR = '0.002257,-0.025431,0.105750,0.010775' / par.in [gi^3,gi^2,gi^1,gi^0]
EBV = 0.0143 / E(B-V) from SFD1998
MLIM = 22.97 / magnitude limiting of 5-sigma galaxy detection
CALI_V = '3.0.1' / version of calibration code
HISTORY Astrometric solution by SCAMP version 2.0.4 (2016-11-04)
COMMENT (c) 2010-2013 IAP/CNRS/UPMC