--- 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 = '3bB55ZA23aA23YA2' / HDU checksum updated 2018-09-20T03:20:58
DATASUM = '         0' / data unit checksum updated 2018-09-20T03:20:58
--- 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 = 10041627 / 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(3573)' / 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 / array data type
ZNAXIS = 2 / number of array dimensions
ZNAXIS1 = 4096
ZNAXIS2 = 4032
RADEC = 'Y' / Get RADEC from telescope or not
RA-OBS = '09:12:14.41' / right ascension (2000.)
DEC-OBS = '+31:44:59.3' / declination
CCD_NO = 1
DATE-OBS = '2015-01-18' / UTC shutter opened
TIME-OBS = '08:05:05.513' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 50.0 / Exposure time (seconds)
HA = '-00:45:07' / hour angle
ST = '08:28:19' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'g' / Filter name
FOCUSVAL = '*0.683*0.659*0.727' / Focus
OBJECT = '03033'
IMAGETYP = 'object'
INSTRUME = '90prime' / Instrument name
RDNOISE = '8.32 8.10 8.12 7.99' / (e-) for hdu id: 1 2 3 4
GAINONE = '1.33 1.38 1.41 1.37' / (e-/DN) for hdu id: 1 2 3 4
GAIN = 50.0 / exptime as gain
FILENAME = 'd7040.0200.fits' / FLATFILE
OBSERVER = 'Hu Zou, Xu Zhou, Jiali Wang' / OPERATOR='Mauskopf'
SITEELEV = '2120' / SITELAT = '31:58.8' SITELONG = '-111:36.0'
CAMTEMP = -140.1 / Camera temperature in C
DEWTEMP = -192.436 / Dewar temperature in C
READ_SPD = '138' / Readout speed (kpixel/sec/amp)
TEMPS1 = 'INSIDE DOME: TEMP_F=INSI HUMID_%=E  DEWPOINT_F=OME:' / Temps
WEATHER0 = '' / WIND_SPEED_MPH
COMMENT ==================================================================
COMMENT WCS
COMMENT ==================================================================
EQUINOX = 2000.0 / Equinox of WCS
WCSDIM = 2 / WCS Dimensionality
CTYPE1 = 'RA---TPV' / l_sun=130.88
CTYPE2 = 'DEC--TPV' / b_sun=14.88
CRVAL1 = 138.060847855 / l_gal=193.52
CRVAL2 = 31.74978799986 / b_gal=42.55
CRPIX1 = 4292.300985263 / Azimuth=88.82
CRPIX2 = -74.03541556608 / Altitude=80.49
CD1_1 = -0.0001256742716635 / Coordinate matrix
CD1_2 = 3.413051630628E-07 / Coordinate matrix
CD2_1 = 8.393929131698E-07 / Coordinate matrix
CD2_2 = 0.0001257353708937 / Coordinate matrix
AIRMASS = 1.014
MPHASE = 7.0 / Define the length of Moon_Month 29.53d
MAZIMUTH = 79.06 / Moon Azimuth is measured from south thr. west
MALITIUD = -52.63 / both units in degrees
MANGLE = 133.23 / Position angle of Moon to CCD_Field center
SKY = 8.843 / (e-/s per pixel)
SKYRMS = 0.466
SATURATE = 1200.0 / 40000adu*gain/exptime
MJD_OBS = 57040.33687
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = F / Has satellite correction
NUM_COSM = 950 / Cosmicray Number
BASS-TLM = '2018-09-19T19:10:17' / 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 = 1095 / dithering offset when quantizing floats
CHECKSUM = 'X4L3a1L0R1L0X1L0' / HDU checksum updated 2018-11-28T11:38:19
DATASUM = '1384910391' / data unit checksum updated 2018-11-28T11:38:19
ZHECKSUM = '5ADLA5AL6AALA5AL' / HDU checksum updated 2018-11-28T03:38:18
ZDATASUM = '2452226632' / data unit checksum updated 2018-10-08T02:00:00
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = -0.001012246417128 / Projection distortion parameter
PV1_1 = 1.00511621652 / Projection distortion parameter
PV1_2 = 0.002075066923381 / Projection distortion parameter
PV1_4 = 0.0005116837087647 / Projection distortion parameter
PV1_5 = -0.0006986543832079 / Projection distortion parameter
PV1_6 = -0.0006622861304239 / Projection distortion parameter
PV1_7 = -0.01539237763322 / Projection distortion parameter
PV1_8 = 0.001394410705819 / Projection distortion parameter
PV1_9 = -0.01284149177783 / Projection distortion parameter
PV1_10 = 0.001387432444532 / Projection distortion parameter
PV1_12 = 0.0007304130328252 / Projection distortion parameter
PV1_13 = -0.001414334325101 / Projection distortion parameter
PV1_14 = -0.001468938247493 / Projection distortion parameter
PV1_15 = -0.0004101021687308 / Projection distortion parameter
PV1_16 = -0.001350151115922 / Projection distortion parameter
PV2_0 = -0.0009120347066587 / Projection distortion parameter
PV2_1 = 1.004572040256 / Projection distortion parameter
PV2_2 = 0.001896999224826 / Projection distortion parameter
PV2_4 = 0.0006763230625186 / Projection distortion parameter
PV2_5 = -0.001505309798475 / Projection distortion parameter
PV2_6 = 0.00110944705453 / Projection distortion parameter
PV2_7 = -0.01514699448679 / Projection distortion parameter
PV2_8 = 0.004047388767687 / Projection distortion parameter
PV2_9 = -0.01233417940205 / Projection distortion parameter
PV2_10 = -0.003126753576917 / Projection distortion parameter
PV2_12 = 0.0002600195329979 / Projection distortion parameter
PV2_13 = -0.004044352904353 / Projection distortion parameter
PV2_14 = -0.002068327307274 / Projection distortion parameter
PV2_15 = -0.001091166402158 / Projection distortion parameter
PV2_16 = 0.002693107222508 / 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 = 0.02 / 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 = 26.1088 / zero point for CCD
CCDZPTA = 26.1171 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 26.1021 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 26.1163 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 26.0983 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 26.1088 / photometric offset of the matched stars
CCDPHRMS = 0.0277 / zpt rms of the matched objects in CCD
PHRMSA = 0.0376 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0224 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0283 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0217 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 3.0941 / FWHM in pixel
SEEING = 1.4047 / seeing in arcsec
RAOFF = -0.0929 / median positional offset from PS1, in arcsec
DECOFF = -0.1062 / median positional offset from PS1, in arcsec
TRANS = 1.1078 / median transparency.
CCDNSTAR = 8839.0 / total number of stars detected on a CCD
NMATCH = 326.0 / total number of matched stars in 2 arcsec
NMATCHA = 90.0 / number of matched stars in CCD ampA
NMATCHB = 72.0 / number of matched stars in CCD ampB
NMATCHC = 81.0 / number of matched stars in CCD ampC
NMATCHD = 83.0 / number of matched stars in CCD ampD
MDNCOL = 1.3377 / 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 = 0.0203 / E(B-V) from SFD1998
MLIM = 23.25 / magnitude limiting of 5-sigma galaxy detection
CALI_V = '3.0.1' / version of calibration code
RA_OFF = 0.001389144628774 / SCAMP
DEC_OFF = -0.001682835558313 / SCAMP
RARMS = 0.01930245739699 / SCAMP
DECRMS = 0.03251742593834 / SCAMP
NSTAR = 521 / SCAMP
HISTORY Astrometric solution by SCAMP version 2.0.4 (2016-11-04)
COMMENT (c) 2010-2013 IAP/CNRS/UPMC