--- 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 = '2bG53Z922aG22Y92' / HDU checksum updated 2018-09-25T14:12:28
DATASUM = '         0' / data unit checksum updated 2018-09-25T14:12:28
--- 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 = 10072182 / 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(2771)' / 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 = '06:38:52.94' / right ascension (2000.)
DEC-OBS = '+59:15:48.5' / declination
CCD_NO = 1
DATE-OBS = '2018-02-21' / UTC shutter opened
TIME-OBS = '03:46:43.226' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 250.0 / Exposure time (seconds)
HA = '-00:16:01' / hour angle
ST = '06:24:19' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'g' / Filter name
FOCUSVAL = '*0.302*0.234*0.292' / Focus
OBJECT = '35942'
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 = 250.0 / exptime as gain
FILENAME = 'TempImage2402.fits' / FLATFILE
OBSERVER = 'Feng LI, Xu ZHOU' / OPERATOR='None'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -135.083 / Camera temperature in C
DEWTEMP = -191.773 / 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=96.13
CTYPE2 = 'DEC--TAN' / b_sun=36.03
CRVAL1 = 99.72041518971 / l_gal=156.2
CRVAL2 = 59.24815462341 / b_gal=21.53
CRPIX1 = 4270.069932074 / Azimuth=4.47
CRPIX2 = -102.8263890882 / Altitude=62.61
CD1_1 = -0.0001258845972141 / Coordinate matrix
CD1_2 = 2.081985051751E-07 / Coordinate matrix
CD2_1 = 5.357672097228E-07 / Coordinate matrix
CD2_2 = 0.0001259022567064 / Coordinate matrix
AIRMASS = 1.126
MPHASE = 27.0 / Define the length of Moon_Month 29.53d
MAZIMUTH = 261.78 / Moon Azimuth is measured from south thr. west
MALITIUD = 27.34 / both units in degrees
MANGLE = 71.48 / Position angle of Moon to CCD_Field center
SKY = 12.335 / (e-/s per pixel)
SKYRMS = 0.254
SATURATE = 240.0 / 40000adu*gain/exptime
MJD_OBS = 58170.15744
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = F / Has satellite correction
NUM_COSM = 1805 / Cosmicray Number
BASS-TLM = '2018-09-25T06:22:32' / 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 = 324 / dithering offset when quantizing floats
TTYPE4 = 'GZIP_COMPRESSED_DATA' / label for field
TFORM4 = '1PB(107)' / format of field
CHECKSUM = 'd7nEe5kCd5kCd5kC' / HDU checksum updated 2018-12-01T07:19:11
DATASUM = '3582459512' / data unit checksum updated 2018-12-01T07:19:11
ZHECKSUM = '7bVU8ZTS7aTS7YTS' / HDU checksum updated 2018-11-30T23:19:11
ZDATASUM = '478907133' / data unit checksum updated 2018-10-10T07:21:05
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.0006792670652602 / Projection distortion parameter
PV1_1 = 1.004165157855 / Projection distortion parameter
PV1_2 = 0.001312338325817 / Projection distortion parameter
PV1_4 = -0.0002017143268165 / Projection distortion parameter
PV1_5 = 6.955057865345E-05 / Projection distortion parameter
PV1_6 = -0.0002292604487545 / Projection distortion parameter
PV1_7 = -0.01324412051604 / Projection distortion parameter
PV1_8 = -0.0002736736584243 / Projection distortion parameter
PV1_9 = -0.01365709636479 / Projection distortion parameter
PV1_10 = 0.0003155747864386 / Projection distortion parameter
PV1_12 = -0.0008352500525123 / Projection distortion parameter
PV1_13 = -0.0003434309038527 / Projection distortion parameter
PV1_14 = 0.0002323338547691 / Projection distortion parameter
PV1_15 = -0.0003170639653823 / Projection distortion parameter
PV1_16 = -0.000254234369395 / Projection distortion parameter
PV2_0 = -0.0006823487076811 / Projection distortion parameter
PV2_1 = 1.004075573374 / Projection distortion parameter
PV2_2 = 0.001309043868177 / Projection distortion parameter
PV2_4 = 0.000223021444761 / Projection distortion parameter
PV2_5 = -0.001017866372931 / Projection distortion parameter
PV2_6 = 0.0003070148680617 / Projection distortion parameter
PV2_7 = -0.01416613837332 / Projection distortion parameter
PV2_8 = 0.002893752647534 / Projection distortion parameter
PV2_9 = -0.01325599328235 / Projection distortion parameter
PV2_10 = -0.0008133135403545 / Projection distortion parameter
PV2_12 = -5.727954325215E-06 / Projection distortion parameter
PV2_13 = -0.002683771293594 / Projection distortion parameter
PV2_14 = -0.001972514109488 / Projection distortion parameter
PV2_15 = 0.0004362060891138 / Projection distortion parameter
PV2_16 = 0.0005075747367981 / 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 = 26.0393 / zero point for CCD
CCDZPTA = 26.0452 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 26.0231 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 26.0476 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 26.0426 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 26.0393 / photometric offset of the matched stars
CCDPHRMS = 0.0329 / zpt rms of the matched objects in CCD
PHRMSA = 0.0228 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0307 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0318 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0352 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 4.4515 / FWHM in pixel
SEEING = 2.021 / seeing in arcsec
RAOFF = 0.0561 / median positional offset from PS1, in arcsec
DECOFF = -0.0574 / median positional offset from PS1, in arcsec
TRANS = 1.0575 / median transparency.
CCDNSTAR = 7612.0 / total number of stars detected on a CCD
NMATCH = 856.0 / total number of matched stars in 2 arcsec
NMATCHA = 220.0 / number of matched stars in CCD ampA
NMATCHB = 232.0 / number of matched stars in CCD ampB
NMATCHC = 196.0 / number of matched stars in CCD ampC
NMATCHD = 208.0 / number of matched stars in CCD ampD
MDNCOL = 0.917 / 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 = 0.0535 / E(B-V) from SFD1998
MLIM = 23.54 / 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