PSPC dataset
FITS filename HDS filename
============= ============
.fits _gti.sdf
_tsi.sdf
_events.sdf
.asp _aspqu.sdf
.evr _evrat.sdf
.sa _spasp.sdf
.so _sporb.sdf
_im1.fits _im1.sdf
_im2.fits _im2.sdf
_im3.fits _im3.sdf
HRI dataset
FITS filename HDS filename
============= ============
.fits _gti.sdf,
_tsi.sdf,
_events.sdf
_img.fits _img.sdf
.ao _ao.sdf
.so _sporb.sdf