--- 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 = '0cD32Z930aC30Y93' / HDU checksum updated 2018-09-29T15:56:12
DATASUM = '         0' / data unit checksum updated 2018-09-29T15:56:12
--- 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 = 10031054 / 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(5476)' / 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 = '11:27:22.32' / right ascension (2000.)
DEC-OBS = '+40:44:59.3' / declination
CCD_NO = 1
DATE-OBS = '2017-03-07' / UTC shutter opened
TIME-OBS = '09:06:56.430' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 150.359 / Exposure time (seconds)
HA = '+01:13:17' / hour angle
ST = '12:41:31' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'bokr' / Filter name
FOCUSVAL = '*0.712*0.659*0.737' / Focus
OBJECT = '15433'
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 = 150.359 / exptime as gain
FILENAME = 'TempImage2402.fits' / FLATFILE
OBSERVER = 'Xu Zhou, Xiyan Peng, Yucheng Guo' / OPERATOR='None'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -135.06 / Camera temperature in C
DEWTEMP = -191.628 / 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=154.46
CTYPE2 = 'DEC--TAN' / b_sun=33.79
CRVAL1 = 171.8428295072 / l_gal=169.36
CRVAL2 = 40.74876087548 / b_gal=67.98
CRPIX1 = 4292.650107564 / Azimuth=305.65
CRPIX2 = -84.74057585899 / Altitude=72.92
CD1_1 = -0.0001257230881038 / Coordinate matrix
CD1_2 = 2.581461810168E-07 / Coordinate matrix
CD2_1 = 7.159723055639E-07 / Coordinate matrix
CD2_2 = 0.0001257384318196 / Coordinate matrix
AIRMASS = 1.046
MPHASE = 71.0 / Define the length of Moon_Month 29.53d
MAZIMUTH = 285.12 / Moon Azimuth is measured from south thr. west
MALITIUD = 10.59 / both units in degrees
MANGLE = 63.6 / Position angle of Moon to CCD_Field center
SKY = 25.783 / (e-/s per pixel)
SKYRMS = 0.439
SATURATE = 399.045 / 40000adu*gain/exptime
MJD_OBS = 57819.37982
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = F / Has satellite correction
NUM_COSM = 455 / Cosmicray Number
BASS-TLM = '2018-09-29T10:51:08' / 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 = 2332 / dithering offset when quantizing floats
TTYPE4 = 'GZIP_COMPRESSED_DATA' / label for field
TFORM4 = '1PB(114)' / format of field
CHECKSUM = 'fEJ3fD92fDG2fD92' / HDU checksum updated 2018-11-30T15:46:41
DATASUM = '561966197' / data unit checksum updated 2018-11-30T15:46:41
ZHECKSUM = 'FNh0GNf0FNf0FNf0' / HDU checksum updated 2018-11-30T07:46:40
ZDATASUM = '2562283532' / data unit checksum updated 2018-10-09T18:49:54
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.0008946040694234 / Projection distortion parameter
PV1_1 = 1.004736024901 / Projection distortion parameter
PV1_2 = 0.001560385620184 / Projection distortion parameter
PV1_4 = -0.000584124726005 / Projection distortion parameter
PV1_5 = 0.001112244329391 / Projection distortion parameter
PV1_6 = 0.0006765747772852 / Projection distortion parameter
PV1_7 = -0.01138709724796 / Projection distortion parameter
PV1_8 = -0.001635200598791 / Projection distortion parameter
PV1_9 = -0.01668957009822 / Projection distortion parameter
PV1_10 = -0.00098428932345820 / Projection distortion parameter
PV1_12 = -0.002667719225057 / Projection distortion parameter
PV1_13 = 0.0002069380252792 / Projection distortion parameter
PV1_14 = 0.001083382010825 / Projection distortion parameter
PV1_15 = 0.002347383323635 / Projection distortion parameter
PV1_16 = 0.0003219844400631 / Projection distortion parameter
PV2_0 = -0.000889172064895 / Projection distortion parameter
PV2_1 = 1.004788964711 / Projection distortion parameter
PV2_2 = 0.001956476901583 / Projection distortion parameter
PV2_4 = -0.0004518730559589 / Projection distortion parameter
PV2_5 = -0.001905927632391 / Projection distortion parameter
PV2_6 = -0.000125207632479 / Projection distortion parameter
PV2_7 = -0.01347526978392 / Projection distortion parameter
PV2_8 = 0.003713666535753 / Projection distortion parameter
PV2_9 = -0.01031687521136 / Projection distortion parameter
PV2_10 = -0.000819533280284 / Projection distortion parameter
PV2_12 = -0.000247182904475 / Projection distortion parameter
PV2_13 = -0.002813691381446 / Projection distortion parameter
PV2_14 = -0.004098925134342 / Projection distortion parameter
PV2_15 = -0.001679173977007 / Projection distortion parameter
PV2_16 = 0.001041230630403 / 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 = 0.006650749206898 / 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 = 25.7786 / zero point for CCD
CCDZPTA = 25.7807 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 25.7637 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 25.792 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 25.7784 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 25.7786 / photometric offset of the matched stars
CCDPHRMS = 0.0364 / zpt rms of the matched objects in CCD
PHRMSA = 0.0238 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.035 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0359 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0381 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 3.4226 / FWHM in pixel
SEEING = 1.5539 / seeing in arcsec
RAOFF = 0.0135 / median positional offset from PS1, in arcsec
DECOFF = -0.09660000000000001 / median positional offset from PS1, in arcsec
TRANS = 0.819 / median transparency.
CCDNSTAR = 9849.0 / total number of stars detected on a CCD
NMATCH = 170.0 / total number of matched stars in 2 arcsec
NMATCHA = 39.0 / number of matched stars in CCD ampA
NMATCHB = 42.0 / number of matched stars in CCD ampB
NMATCHC = 41.0 / number of matched stars in CCD ampC
NMATCHD = 48.0 / number of matched stars in CCD ampD
MDNCOL = 1.5767 / 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 = 0.0192 / E(B-V) from SFD1998
MLIM = 22.95 / 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