--- 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 = '2cH34Z932aG32Y93' / HDU checksum updated 2018-09-30T22:34:36
DATASUM = '         0' / data unit checksum updated 2018-09-30T22:34:36
--- header unit 1: binary table ---
XTENSION = 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 24 / width of table in bytes
NAXIS2 = 4032 / number of rows in table
PCOUNT = 10178488 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'COMPRESSED_DATA' / label for field 1
TFORM1 = '1PB(2746)' / 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 = '17:20:44.64' / right ascension (2000.)
DEC-OBS = '+31:44:59.4' / declination
CCD_NO = 2
DATE-OBS = '2017-05-17' / UTC shutter opened
TIME-OBS = '11:13:23.603' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 250.0 / Exposure time (seconds)
HA = '+02:06:57' / hour angle
ST = '19:28:18' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'bokr' / Filter name
FOCUSVAL = '*0.717*0.644*0.698' / Focus
OBJECT = '04053'
IMAGETYP = 'object'
INSTRUME = '90prime' / Instrument name
RDNOISE = '11.0 10.5 9.88 8.84' / (e-) for hdu id: 5 6 7 8
GAINONE = '1.68 1.72 1.67 1.67' / (e-/DN) for hdu id: 5 6 7 8
GAIN = 250.0 / exptime as gain
FILENAME = 'TempImage2402.fits' / FLATFILE
OBSERVER = 'Hu Zou, Jiali Wang, Fengjie Lei' / OPERATOR='None'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -135.482 / Camera temperature in C
DEWTEMP = -192.953 / 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=255.48
CTYPE2 = 'DEC--TAN' / b_sun=54.7
CRVAL1 = 260.1858054099 / l_gal=55.05
CRVAL2 = 31.74910665081 / b_gal=32.12
CRPIX1 = 4274.699372447 / Azimuth=278.02
CRPIX2 = 4111.306783658 / Altitude=63.15
CD1_1 = -0.0001257739837763 / Coordinate matrix
CD1_2 = 8.939159532643E-07 / Coordinate matrix
CD2_1 = 5.281947621357E-07 / Coordinate matrix
CD2_2 = 0.00012583774215 / Coordinate matrix
AIRMASS = 1.121
MPHASE = 65.5 / Define the length of Moon_Month 29.53d
MAZIMUTH = 156.89 / Moon Azimuth is measured from south thr. west
MALITIUD = 37.71 / both units in degrees
MANGLE = 68.86 / Position angle of Moon to CCD_Field center
SKY = 31.117 / (e-/s per pixel)
SKYRMS = 0.403
SATURATE = 240.0 / 40000adu*gain/exptime
MJD_OBS = 57890.46763
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = F / Has satellite correction
NUM_COSM = 1030 / Cosmicray Number
BASS-TLM = '2018-09-30T18:31:17' / 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 = 7999 / dithering offset when quantizing floats
CHECKSUM = 'NoHhPoGfNoGfNoGf' / HDU checksum updated 2019-05-08T12:04:39
DATASUM = '1675556455' / data unit checksum updated 2019-05-08T12:04:39
ZHECKSUM = 'NnEdOl9ZNlCdNl9Z' / HDU checksum updated 2018-10-09T21:32:25
ZDATASUM = '2474599273' / data unit checksum updated 2018-10-09T21:32:25
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.0007983973167184 / Projection distortion parameter
PV1_1 = 1.004552290595 / Projection distortion parameter
PV1_2 = -0.001423862544272 / Projection distortion parameter
PV1_4 = -0.0006220387321362 / Projection distortion parameter
PV1_5 = -0.0002810766881535 / Projection distortion parameter
PV1_6 = 1.146790503003E-05 / Projection distortion parameter
PV1_7 = -0.01285399168024 / Projection distortion parameter
PV1_8 = -0.001089388862523 / Projection distortion parameter
PV1_9 = -0.01340491360217 / Projection distortion parameter
PV1_10 = 0.0004677591050288 / Projection distortion parameter
PV1_12 = -0.0005842306057882 / Projection distortion parameter
PV1_13 = 0.001768282121277 / Projection distortion parameter
PV1_14 = -0.0005092921657596 / Projection distortion parameter
PV1_15 = 0.0005512739959723 / Projection distortion parameter
PV1_16 = 0.0006172714974887 / Projection distortion parameter
PV2_0 = 0.0007143851280734 / Projection distortion parameter
PV2_1 = 1.003899957264 / Projection distortion parameter
PV2_2 = -0.001416343355347 / Projection distortion parameter
PV2_4 = -0.0008298575693145 / Projection distortion parameter
PV2_5 = -0.0001313751041596 / Projection distortion parameter
PV2_6 = -0.0002149006481395 / Projection distortion parameter
PV2_7 = -0.01355498587238 / Projection distortion parameter
PV2_8 = 0.0002024885814689 / Projection distortion parameter
PV2_9 = -0.01348364177335 / Projection distortion parameter
PV2_10 = -0.0001944982697514 / Projection distortion parameter
PV2_12 = 0.0007050189447012 / Projection distortion parameter
PV2_13 = 0.0003175249141558 / Projection distortion parameter
PV2_14 = 0.0009711121934696 / Projection distortion parameter
PV2_15 = -0.000103772687165 / Projection distortion parameter
PV2_16 = 0.0003159021415562 / 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 = 25.8319 / zero point for CCD
CCDZPTA = 25.8315 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 25.8358 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 25.8485 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 25.8135 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 25.8319 / photometric offset of the matched stars
CCDPHRMS = 0.0336 / zpt rms of the matched objects in CCD
PHRMSA = 0.0287 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0345 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0285 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0282 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 3.3699 / FWHM in pixel
SEEING = 1.53 / seeing in arcsec
RAOFF = -0.0178 / median positional offset from PS1, in arcsec
DECOFF = -0.0864 / median positional offset from PS1, in arcsec
TRANS = 0.8661 / median transparency.
CCDNSTAR = 12976.0 / total number of stars detected on a CCD
NMATCH = 889.0 / total number of matched stars in 2 arcsec
NMATCHA = 227.0 / number of matched stars in CCD ampA
NMATCHB = 200.0 / number of matched stars in CCD ampB
NMATCHC = 221.0 / number of matched stars in CCD ampC
NMATCHD = 241.0 / number of matched stars in CCD ampD
MDNCOL = 0.9668 / median (g-i) color of matched stars in CCD
COLT_PAR = '-0.009667,0.028089,-0.076505,0.002433' / par.in [gi^3,gi^2,gi^1,gi^0]
EBV = 0.0383 / E(B-V) from SFD1998
MLIM = 23.15 / magnitude limiting of 5-sigma galaxy detection
CALI_V = '3.0.1' / version of calibration code
INT_ZPT = 25.8367 / zpt from internal calibration
INT_STD = 0.0311 / sigma for zpt from internal calibration
INT_NUM = 4942.0 / number of stars used in internal calibration
HISTORY Astrometric solution by SCAMP version 2.0.4 (2016-11-04)
COMMENT (c) 2010-2013 IAP/CNRS/UPMC