SIMPLE  =                    T / Written by IDL:   2-Oct-1993 20:36:50.00
BITPIX  =                   16 / No. of bits per pixel
NAXIS   =                    2 / No. of axes in image
NAXIS1  =                  512 / No. of pixels
NAXIS2  =                  512 / No. of pixels
EXTEND  =                    T / FITS extension may be present
BLOCKED =                    T / FITS file may be blocked
TELESCOP= 'ROSAT   '           / Mission/telescope name
INSTRUME= 'PSPCB   '           / Instrument name
CTYPE1  = 'DETX    '           / axis type for dim. 1
CRPIX1  =              257.400 / Ref pixel for dim 1 in blocked coords
CRVAL1  =                 4119 / DETX for optical axis
CDELT1  =              16.0000 / X pixel size at reference pixel
CUNIT1  = 'pixel   '           / Units of DETX
CTYPE2  = 'DETY    '           / axis type for dim. 2
CRPIX2  =              245.600 / Ref pixel for dim 2 in blocked coords
CRVAL2  =                 3929 / DETY for optical axis
CDELT2  =              16.0000 / Y pixel size at reference pixel
CUNIT2  = 'pixel   '           / Units of DETY
BSCALE  =       5.10190002e-05 / Scaling factor for image
BZERO   =             0.000000 / Offset for image
DATAMIN =      -8.97934404e-03 / Minimum value in image
DATAMAX =            1.6326080 / Maximum value in image
DATE    = '23/09/93'           / Creation date
ORIGIN  = 'ROSAT NASA/GSFC GOF' / Origin of file
PIXSIZE =         4.152035e-03 / Image pixel size in decimal degrees
BLKFACT =                   16 / Blocking factor for image
CHANMIN =                   52 / Minimum PI channel for image
CHANMAX =                   69 / Maximum PI channel for image
COMMENT  Following keywords required by OGIP CALDB
CCLS0001= 'CPF     '           / Calibration Products File
CCNM0001= 'DETMAP  '           / OGIP Class - Detector Map
CDTP0001= 'DATA    '           / Real data, not subroutine
CVSD0001= '01/06/90'           / Validity start date
CVST0001= '00:00:00'           / Validity start time
CDES0001= ' Detector map in PI channels 52 - 69 (Versn SM1)' /
CBD10001= 'CHAN(52-69)'        / PI channel bounds
HISTORY  Notes by Steve Snowden (21/09/93):
HISTORY  Created from all-sky survey data.  Shifted templates were created
HISTORY  from PSPC C data (pre 25-Jan-93) which were alligned with the window
HISTORY  support structure of the PSPC B data (post 25-Jan-93).  The shifted
HISTORY  templates were then scaled by the PSPC B data.  Time periods of
HISTORY  enhanced noncosmic background have been removed and an estimate of
HISTORY  the particle background has been subtracted.
END