付録A SNGデータヘッダー例
SIMPLE = T / BASIC FITS TAPE FORMAT
BITPIX = 16 / BIT NUMBER PER PIXEL
NAXIS = 2 / IMAGE DIMENSION
NAXIS1 = 256 / NUMBER OF PIXELS PER ROW
NAXIS2 = 512 / NUMBER OF ROWS
BSCALE = 1.000000 / REAL = TAPE * BSCALE + BZERO
BZERO = 0.000000 / DATA VALUE OFFSET
BUNIT = 'CCD COUNT IN ADU' / UNITS OF BRIGHTNESS
BLANK = -32768 / VALUE FOR VALUE-UNDEFINED PIXELS
OBJECT = 'Bias 3' / OBJECT NAME
DATA-TYP= 'ZERO' / OBJECT/FLAT/COMP/DARK/BIAS/ETC.
SOURCE = 'CSD18469.001' / ORIGINAL FILE NAME
FILTER = 'NONE' / FILTER NAME
BAND = '-' / OBSERVED WAVELENGTH BAND
WAVELEN = 6657 / CENTER WAVELENGTH
GRATING = '600/MM' / GRATING USED
SLIT = ' 0.30' / SLIT WIDTH (ARCSEC)
POS-ANG = 40 / SLIT POSITION ANGLE
DISPAXIS= 2 / DISPERSION AXIS
EXPTIME = 0.0 / ACTUAL INTEGRATION TIME (SEC)
RA = '20:45:22.170' / RIGHT ASCENSION
DEC = '-20:02:06.542' / DECLINATION
EPOCH = 1950.0 / EPOCH OF RA AND DEC
DATE-OBS= '20/08/96' / DATE OF DATE ACQUISITION
JST-STRT= '23:24:26' / JAPAN STANDARD TIME (OBS. START)
JST-END = '23:25:06' / JAPAN STANDARD TIME (OBS. END)
ZD = 54 / ZENITH DISTANCE
UT = '14:24:24.472' / UT (MID-EXPOSURE TIME)
JD = 50315.60 / JULIAN DAY
ST = '21:15:35.513' / SIDERIAL TIME
SECZ = 1.734885 / AIRMASS (SEC Z)
IMG-SIZE= 2.0000 / IMAGE SIZE (ARCSEC)
SNG-RA0 = '20:45:22.113' / SNG START POINT RIGHT ACSENSION
SNG-DEC0= '-20:02:06.542' / SNG START POINT DECLINATION
SNG-DRA = 0.000000 / SNG RIGHT ACSENSION OFFSET (ARCSEC)
SNG-DDEC= 0.000000 / SNG DECLINATION OFFSET (ARCSEC)
CRVAL1 = 0.00 / REFRENCE POINT VALUE IN ARCSEC
CRPIX1 = 128.00 / REFERNCE POINT PIXEL LOCATION
CTYPE1 = 'ARCSEC' / TYPE OF PHYSICAL COORD. ON AXIS1
CDELT1 = 1.75392 / PIXEL SIZE ON AXIS1
CROTA1 = 0.00 / CCW ROTATION
CRVAL2 = 6657.00 / REFRENCE POINT VALUE IN ARCSEC
CRPIX2 = 256.00 / REFERNCE POINT PIXEL LOCATION
CTYPE2 = 'ANGSTROM' / TYPE OF PHYSICAL COORD. ON AXIS2
CDELT2 = -1.4817 / PIXEL SIZE ON AXIS2
CROTA2 = 0.00 / CCW ROTATION
SKY-MAG = -1.0000 / NOT YET DETERMINED
INSTRUME= 'SNG' / NEW CASEGRAIN SPECTROGRAPH
DETECTER= 'PM CCD 516x516' / CCD CHIP USED
BIN-FCT1= 2 / BINNING FACTOR ON AXIS1
BIN-FCT2= 1 / BINNING FACTOR ON AXIS2
EPADU = 2.77 / ELECTRONS PER ADU
READNOIS= 5.10 / READOUT NOISE (ELECTRON UNIT)
CAM-TEMP= '-140.0' / CCD TEMPERATURE (CENTIGRADE)
PBLX = 0 / NUMBER OF PREBLACK SUBPIXELS
PSIG = 0 / NUMBER OF PRESIGNAL SUBPIXELS
TELESCOP= 'OAO 188CM' / TELESCOPE NAME
TEL-LONG= 133.360000 / LONGITUDE OF THE TELESCOPE
TEL-LATI= 34.340000 / LATITUDE OF THE TELESCOPE
TEL-POSE= 'WEST' / TELESCOPE POSE (WEST/EAST)
OBSERVER= 'XXXXXXXXXXXXXXX' / OBSERVER'S NAME/IDENTIFICATION
ORIGIN = 'OAO' / TAPE WRITING INSTITUTION
DATE = '20/08/96' / DATE WHEN DATA FILE WRITTEN
END
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