--- 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 = '1gF51Z951dC51Z95' / HDU checksum updated 2018-09-27T11:15:22
DATASUM = '         0' / data unit checksum updated 2018-09-27T11:15:22
--- 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 = 10314410 / 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(2737)' / 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 = '19:11:34.71' / right ascension (2000.)
DEC-OBS = '+51:15:00.3' / declination
CCD_NO = 1
DATE-OBS = '2018-05-19' / UTC shutter opened
TIME-OBS = '08:40:35.006' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 74.202 / Exposure time (seconds)
HA = '-02:10:10' / hour angle
ST = '17:01:51' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'bokr' / Filter name
FOCUSVAL = '*0.654*0.561*0.625' / Focus
OBJECT = '63462'
IMAGETYP = 'object'
INSTRUME = '90prime' / Instrument name
RDNOISE = '8.72 8.9 8.07 7.46' / (e-) for hdu id: 1 2 3 4
GAINONE = '1.58 1.76 1.62 1.63' / (e-/DN) for hdu id: 1 2 3 4
GAIN = 74.202 / exptime as gain
FILENAME = 'TempImage2402.fits' / FLATFILE
OBSERVER = 'Z. Zhou, J. Wang, G. Chen' / OPERATOR='None'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -135.072 / Camera temperature in C
DEWTEMP = -192.251 / Dewar temperature in C
READ_SPD = '138' / 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=309.15
CTYPE2 = 'DEC--TAN' / b_sun=72.26
CRVAL1 = 287.8945461766 / l_gal=82.01
CRVAL2 = 51.24855072892 / b_gal=17.86
CRPIX1 = 4272.850743622 / Azimuth=41.31
CRPIX2 = -66.84219769928001 / Altitude=59.41
CD1_1 = -0.0001258227128562 / Coordinate matrix
CD1_2 = 1.145767962569E-06 / Coordinate matrix
CD2_1 = 1.465454734791E-06 / Coordinate matrix
CD2_2 = 0.0001258575585176 / Coordinate matrix
AIRMASS = 1.161
MPHASE = 19.9 / Define the length of Moon_Month 29.53d
MAZIMUTH = 320.56 / Moon Azimuth is measured from south thr. west
MALITIUD = -27.63 / both units in degrees
MANGLE = 109.07 / Position angle of Moon to CCD_Field center
SKY = 10.075 / (e-/s per pixel)
SKYRMS = 0.399
SATURATE = 808.604 / 40000adu*gain/exptime
MJD_OBS = 58257.36152
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = T / Has satellite correction
NUM_COSM = 3436 / Cosmicray Number
BASS-TLM = '2018-09-27T05:52:00' / 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 = 4728 / dithering offset when quantizing floats
CHECKSUM = 'FBLaF9LSFALYF7LY' / HDU checksum updated 2019-05-08T18:16:43
DATASUM = '702691076' / data unit checksum updated 2019-05-08T18:16:43
ZHECKSUM = 'YSAaYR9XYRAaYR9U' / HDU checksum updated 2018-10-10T13:07:39
ZDATASUM = '2288496956' / data unit checksum updated 2018-10-10T13:07:39
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.00069102403730740 / Projection distortion parameter
PV1_1 = 1.004008833919 / Projection distortion parameter
PV1_2 = 0.001205685121407 / Projection distortion parameter
PV1_4 = 0.001176293010212 / Projection distortion parameter
PV1_5 = 0.0006090484297813 / Projection distortion parameter
PV1_6 = 0.0002032379489688 / Projection distortion parameter
PV1_7 = -0.01644293876139 / Projection distortion parameter
PV1_8 = -0.002252909273872 / Projection distortion parameter
PV1_9 = -0.01400613875318 / Projection distortion parameter
PV1_10 = -0.0005696344314844 / Projection distortion parameter
PV1_12 = 0.00207435772346 / Projection distortion parameter
PV1_13 = 0.00217767469054 / Projection distortion parameter
PV1_14 = -0.000829870063775 / Projection distortion parameter
PV1_15 = 0.0009179811583477 / Projection distortion parameter
PV1_16 = 0.0001857788702833 / Projection distortion parameter
PV2_0 = -0.0006357415858179 / Projection distortion parameter
PV2_1 = 1.003600545472 / Projection distortion parameter
PV2_2 = 0.001256218883789 / Projection distortion parameter
PV2_4 = 0.001750966346672 / Projection distortion parameter
PV2_5 = -0.0001383022399653 / Projection distortion parameter
PV2_6 = 0.0001462087165095 / Projection distortion parameter
PV2_7 = -0.01621779737973 / Projection distortion parameter
PV2_8 = -0.0004733643448165 / Projection distortion parameter
PV2_9 = -0.01283798035656 / Projection distortion parameter
PV2_10 = -0.0005465517868148 / Projection distortion parameter
PV2_12 = 0.0006914353372391 / Projection distortion parameter
PV2_13 = -0.0008126447617157 / Projection distortion parameter
PV2_14 = 0.0005307269199479 / Projection distortion parameter
PV2_15 = -0.001550212509796 / Projection distortion parameter
PV2_16 = 0.0006683543484207 / 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 = 0.01347672569473 / 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 = 25.7045 / zero point for CCD
CCDZPTA = 25.7025 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 25.6906 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 25.7196 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 25.7061 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 25.7045 / photometric offset of the matched stars
CCDPHRMS = 0.0316 / zpt rms of the matched objects in CCD
PHRMSA = 0.0284 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0325 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0271 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0319 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 2.8987 / FWHM in pixel
SEEING = 1.316 / seeing in arcsec
RAOFF = 0.0065 / median positional offset from PS1, in arcsec
DECOFF = -0.0344 / median positional offset from PS1, in arcsec
TRANS = 0.7731 / median transparency.
CCDNSTAR = 16358.0 / total number of stars detected on a CCD
NMATCH = 2071.0 / total number of matched stars in 2 arcsec
NMATCHA = 547.0 / number of matched stars in CCD ampA
NMATCHB = 490.0 / number of matched stars in CCD ampB
NMATCHC = 472.0 / number of matched stars in CCD ampC
NMATCHD = 562.0 / number of matched stars in CCD ampD
MDNCOL = 0.9393 / 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 = 0.0717 / E(B-V) from SFD1998
MLIM = 22.97 / magnitude limiting of 5-sigma galaxy detection
CALI_V = '3.0.1' / version of calibration code
INT_ZPT = 25.7082 / zpt from internal calibration
INT_STD = 0.0338 / sigma for zpt from internal calibration
INT_NUM = 11549.0 / 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