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Data Extension

XTENSION= 'BINTABLE'           / binary table extension
BITPIX  =                    8 / 8-bit bytes
NAXIS   =                    2 / 2-dimensional binary table
NAXIS1  =                 1312 / width of table in bytes
NAXIS2  =                    3 / number of rows in table
PCOUNT  =                    0 / size of special data area
GCOUNT  =                    1 / one data group (required keyword)
TFIELDS =                    5 / number of fields in each row
TTYPE1  = 'SPEC_NUM'           / label for field   1
TFORM1  = 'I       '           / data format of the field: 2-byte INTEGER
TTYPE2  = 'CHANNEL '           / label for field   2
TFORM2  = '129I    '           / data format of the field: 2-byte INTEGER
TUNIT2  = 'channel '           / physical unit of field
TTYPE3  = 'COUNTS  '           / label for field   3
TFORM3  = '129E    '           / data format of the field: 4-byte REAL
TUNIT3  = 'count   '           / physical unit of field
TTYPE4  = 'STAT_ERR'           / label for field   4
TFORM4  = '129E    '           / data format of the field: 4-byte REAL
TUNIT4  = 'count   '           / physical unit of field
TTYPE5  = 'ROWID   '           / label for field   5
TFORM5  = '20A     '           / data format of the field: ASCII Character
EXTNAME = 'SPECTRUM'           / name of this binary table extension
HDUCLASS= 'OGIP    '           / format conforms to OGIP/GSFC Spectral standards
HDUDOC  = 'Arnaud et al. 1992a,                Legacy 2, p 65, Type: II' / forma
HDUCLAS1= 'SPECTRUM'           / Extension contains a Spectrum
HDUCLAS2= 'TOTAL   '           / Extension contains a Spectrum
HDUCLAS3= 'COUNT   '           / Extension contains counts
HDUCLAS4= 'TYPE:II '           / Multiple PHA file contained
HDUVERS1= '1.2.1   '           / Obsolete - included for backwards compatibility
HDUVERS = '1.2.1   '           / Version number of the format
POISSERR=                    F / Are Poisson Distribution errors assumed
SYS_ERR =                    0 / No systematic error was specified
GROUPING=                    0 / No grouping data has been specified
QUALITY =                    0 / No data quality information specified
TELESCOP= 'XTE     '           / Telescope (mission) name
INSTRUME= 'PCA     '           / Instrument name
FILTER  = 'none    '           / Instrument filter in use
EXPOSURE=  1.28000000000000E+02 / Exposure time
AREASCAL=       1.00000000E+00 / Nominal effective area
BACKSCAL=       1.00000000E+00 / Background scale factor
CORRSCAL=       0.00000000E+00 / Correlation scale factor
BACKFILE= 'none    '           / Background FITS file for this object
CORRFILE= 'none    '           / Correlation FITS file for this object
RESPFILE= 'none    '           / Redistribution matrix file (RMF)
ANCRFILE= 'none    '           / Ancillary response file (ARF)
XFLT0001= 'none    '           / XSPEC selection filter description
CHANTYPE= 'PHA     '           / Channels assigned by detector electronics
DETCHANS=                  129 / Total number of detector channels available
TLMIN2  =                    0 / Lowest Legal channel number
TLMAX2  =                  128 / Highest Legal channel number
CPIX2   = '(0~4),(5:51),(52~141;2),(142~237;3),(238~249;4),(250~255)' / Channel
OBJECT  = 'M81     '           / OBJECT from the FIRST input file
FILENAME= 'several '           / Spectrum was produced from more than one file
ORIGIN  = 'NASA/GSFC'          / origin of fits file
CREATOR = 'SAEXTRCT/XTE/GOF'   / Program name that produced this file
DATE    = '1995-02-06'         / FITS file creation date (yyyy-mm-dd)
RA-OBJ  =       1.48000000E+02 / RA of First input object
DEC-OBJ =       6.93000031E+01 / DEC of First input object
EQUINOX =              2000.00 / Equinox of the FIRST object
RADECSYS= 'FK5     '           / Co-ordinate frame used for equinox
DROLLANG=       0.00000000E+00 / Mean roll angle
PHAVERSN= '1992a   '           / OGIP memo number for file format
DATE-OBS= '1993-03-26'         / EARLIEST observation date of files
TIME-OBS= '18:58:08'           / EARLIEST time of all input files
DATE-END= '1993-03-26'         / LATEST observation date of files
TIME-END= '19:00:16'           / LATEST time of all input files
TIMESYS = 'MJD     '           / The time system is MJD
TIMEUNIT= 's       '           / unit for TSTARTI/F and TSTOPI/F, TIMEZERO
MJDREF  =  4.9352000696574076E+04 / 1993.0
TSTART  =  7.32588800000000E+06 / Observation start time
TSTOP   =  7.32601600000000E+06 / fractional observation stop time
TIMEDEL =  1.60000000000000E+01 / integration time
END



Keith Arnaud 2009-05-06