--- 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 = '0gD70Z950fA50Z95' / HDU checksum updated 2018-09-29T00:06:42
DATASUM = '         0' / data unit checksum updated 2018-09-29T00:06:42
--- 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 = 10159525 / 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(2666)' / 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 = '07:50:49.44' / right ascension (2000.)
DEC-OBS = '+31:44:59.5' / declination
CCD_NO = 3
DATE-OBS = '2017-02-22' / UTC shutter opened
TIME-OBS = '05:25:54.253' / UTC at start of exposure
TIMESYS = 'UTC' / Time system
EXPTIME = 117.126 / Exposure time (seconds)
HA = '+00:16:48' / hour angle
ST = '08:08:42' / local siderial time
EPOCH = 2015.0 / equinox of RA and DEC
FILTER = 'g' / Filter name
FOCUSVAL = '*0.747*0.727*0.712' / Focus
OBJECT = '02863'
IMAGETYP = 'object'
INSTRUME = '90prime' / Instrument name
RDNOISE = '12.3 9.81 10.8 9.88' / (e-) for hdu id: 9 10 11 12
GAINONE = '1.50 1.61 1.49 1.66' / (e-/DN) for hdu id: 9 10 11 12
GAIN = 117.126 / 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 = -135.412 / Camera temperature in C
DEWTEMP = -193.005 / 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=113.71
CTYPE2 = 'DEC--TAN' / b_sun=10.56
CRVAL1 = 117.7058495185 / l_gal=188.76
CRVAL2 = 31.74913733478 / b_gal=25.71
CRPIX1 = -165.9967764642 / Azimuth=266.69
CRPIX2 = -68.77949914107 / Altitude=86.42
CD1_1 = -0.0001257718700575 / Coordinate matrix
CD1_2 = 5.25883449107E-07 / Coordinate matrix
CD2_1 = 1.291956622613E-07 / Coordinate matrix
CD2_2 = 0.0001257381329098 / Coordinate matrix
AIRMASS = 1.002
MPHASE = 19.7 / Define the length of Moon_Month 29.53d
MAZIMUTH = 58.94 / Moon Azimuth is measured from south thr. west
MALITIUD = -67.87 / both units in degrees
MANGLE = 160.97 / Position angle of Moon to CCD_Field center
SKY = 7.77 / (e-/s per pixel)
SKYRMS = 0.308
SATURATE = 512.269 / 40000adu*gain/exptime
MJD_OBS = 57806.22632
ORIGIN = 3.0 / BASS Image Process Version
ARTIFACT = 'Y' / Artifact was done
HASSAT = F / Has satellite correction
NUM_COSM = 1384 / Cosmicray Number
BASS-TLM = '2018-09-28T18:04:42' / 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 = 3503 / dithering offset when quantizing floats
CHECKSUM = 'CcEFEZ99CbEECZ99' / HDU checksum updated 2019-05-08T07:12:51
DATASUM = '3071972951' / data unit checksum updated 2019-05-08T07:12:51
ZHECKSUM = 'BZnqCZnnBZnnBZnn' / HDU checksum updated 2018-11-30T05:02:40
ZDATASUM = '3521067191' / data unit checksum updated 2018-10-09T16:21:59
RADESYS = 'ICRS' / Astrometric system
CUNIT1 = 'deg' / Axis unit
CUNIT2 = 'deg' / Axis unit
PV1_0 = 0.000798254877849 / Projection distortion parameter
PV1_1 = 1.004239819269 / Projection distortion parameter
PV1_2 = -0.001688423209555 / Projection distortion parameter
PV1_4 = -0.0008989753197915 / Projection distortion parameter
PV1_5 = -0.0006573502302869 / Projection distortion parameter
PV1_6 = 0.000776957932088399 / Projection distortion parameter
PV1_7 = -0.01517833517621 / Projection distortion parameter
PV1_8 = -0.0002906414885188 / Projection distortion parameter
PV1_9 = -0.01151212012125 / Projection distortion parameter
PV1_10 = -0.002342081222466 / Projection distortion parameter
PV1_12 = -0.001048212044776 / Projection distortion parameter
PV1_13 = -0.00075852197720140 / Projection distortion parameter
PV1_14 = 0.001387068479446 / Projection distortion parameter
PV1_15 = -0.002663566117361 / Projection distortion parameter
PV1_16 = 0.002029455829976 / Projection distortion parameter
PV2_0 = -0.000804793096893 / Projection distortion parameter
PV2_1 = 1.004380873182 / Projection distortion parameter
PV2_2 = -0.001607441976229 / Projection distortion parameter
PV2_4 = -0.0002604386822794 / Projection distortion parameter
PV2_5 = -0.00058291107846750 / Projection distortion parameter
PV2_6 = -0.0006247096585019 / Projection distortion parameter
PV2_7 = -0.0128784999315 / Projection distortion parameter
PV2_8 = 0.0006878757631304 / Projection distortion parameter
PV2_9 = -0.0136106848447 / Projection distortion parameter
PV2_10 = -0.001297715787636 / Projection distortion parameter
PV2_12 = -0.001753690031923 / Projection distortion parameter
PV2_13 = 6.26318335295500E-05 / Projection distortion parameter
PV2_14 = -0.0007518134813102 / Projection distortion parameter
PV2_15 = 0.0002912224019647 / Projection distortion parameter
PV2_16 = -0.001305833525315 / 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 = 0.008537813978109 / 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 = 26.0798 / zero point for CCD
CCDZPTA = 26.0704 / zero point for CCD ampA [1:2016,1:2048]
CCDZPTB = 26.0704 / zero point for CCD ampB [2017:4032,1:2048]
CCDZPTC = 26.0925 / zero point for CCD ampC [1:2016, 2049,4096]
CCDZPTD = 26.0872 / zero point for CCD ampD [2017:4032,2049:4096]
CCDPHOFF = 26.0798 / photometric offset of the matched stars
CCDPHRMS = 0.0332 / zpt rms of the matched objects in CCD
PHRMSA = 0.028 / zpt rms of the matched objects in CCD ampA
PHRMSB = 0.0321 / zpt rms of the matched objects in CCD ampB
PHRMSC = 0.0422 / zpt rms of the matched objects in CCD ampC
PHRMSD = 0.0235 / zpt rms of the matched objects in CCD ampD
APER_R = 13.0 / (pixels) photo-aperture radius
FWHM = 3.0127 / FWHM in pixel
SEEING = 1.3677 / seeing in arcsec
RAOFF = 0.0043 / median positional offset from PS1, in arcsec
DECOFF = -0.1073 / median positional offset from PS1, in arcsec
TRANS = 1.0766 / median transparency.
CCDNSTAR = 9953.0 / total number of stars detected on a CCD
NMATCH = 745.0 / total number of matched stars in 2 arcsec
NMATCHA = 186.0 / number of matched stars in CCD ampA
NMATCHB = 202.0 / number of matched stars in CCD ampB
NMATCHC = 168.0 / number of matched stars in CCD ampC
NMATCHD = 189.0 / number of matched stars in CCD ampD
MDNCOL = 1.0415 / 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 = 0.0706 / E(B-V) from SFD1998
MLIM = 23.65 / magnitude limiting of 5-sigma galaxy detection
CALI_V = '3.0.1' / version of calibration code
INT_ZPT = 26.0797 / zpt from internal calibration
INT_STD = 0.0341 / sigma for zpt from internal calibration
INT_NUM = 4996.0 / 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