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9.2 REV0 Data in the RDA

    

Data which were processed by SASS versions earlier than version 6.0 (which was available after 1993 TBD at MPE and after 1993 TBD in the U.S.) constitute the REV0 archive. Because of problems with the initial release of SASS (such as the timing problem and often large aspect uncertainties) it was decided by international agreement that the REV0 data products would constitute only an intermediate data archive, and further that some derived products like source lists and background maps produced by the REV0 processing system were too unreliable to constitute an archived data product. As a result only a subset of the REV0 data products distributed to the principal investigator were released to the RDA. Thus, for each observation, the REV0 data products in the RDA include only the following data products listed in Tab. 9.1.  

 

Instrument Archived data product
PSPC lists of accepted photon events
lists of rejected photon events
lists of standard accepted times (i.e., , ``good times'')
total, hard, and soft band images
a merged exposure map
attitude information
spacecraft orbit information
housekeeping and engineering information
energy-coded map (Ger./U.K. data only)
lists of catalogued SIMBAD sources in the field
detector response matrix
on- and off-axis effective-area file
point spread function file
broad-band instrument map
postscript plots (U.S. data only)
HRI lists of accepted photon events
lists of rejected photon events
lists of standard accepted times (i.e., , ``good times'')
total band image
a merged exposure map
attitude information
spacecraft orbit information
housekeeping and engineering information
quantum efficiency map (U.S. only)
bright earth map (U.S. only)
Table 9.1:  REV0 data products in the RDA

 

The number of data files archived with each data set depends on the instrument in use. In addition the number and format of the data files depends on where the data were processed. REV0 data processed and released by MPE use a FITS format designed to be used in the EXSAS analysis environment, while data processed and released by GSFC use a FITS format which was designed to be used with the PROS analysis package.    Thus, while the data products conform to the FITS standard, there are many differences between the ``EXSAS'' and ``PROS'' versions. These differences include the grouping of information in files, differences in labelling of information, and the formats (binary or ascii) of the files themselves. While these differences are for the most part cosmetic, they can prove vexing to the casual archive user who wants to simultaneously analyze a German and a U.S. observation of the same field. Software ``translators'' are available in EXSAS and PROS to enable correct interpretation of REV0 data in either the EXSAS or PROS formats.   

Tables 9.2, 9.3, 9.4, and 9.5 list the data products for typical U.S. and Ger./U.K. data sets archived in the RDA for a PSPC and an HRI observation, and the name of the corresponding file in the USRDA.  

 

File description Sample file in USRDA
photon list rp110590.fits
broad-band image rp110590_im1.fits
hard-band image rp110590_im2.fits
exposure map rp110590_mex.fits
soft-band image rp110590_im3.fits
SIMBAD source list rp110590_sky.fits
public contents file rp110590.public_contents
photon list rp110590.fits
master data stor rp110590.mds
processing parameters rp110590.par
response matrix rp110590.dmp
instrument map rp110590.moi
off-axis area rp110590.oar
radiation cal results rp110590.rcr
exposure map rp110590_mex.fits
aspect quality rp110590.asp
corrected aspect rp110590.cas
event rates rp110590.evr
binned housekeeping rp110590.hkb
split aspect rp110590.sa
smoothed aspect rp110590.sas
split orbit rp110590.so
housekeeping status rp110590.sta
extracted SIMBAD list rp110590_smx.asc
V&V report rp110590_vv2924.report
aspect plots (1/OBI) rp110590_aaq001_16.plt
event rate plot(1/OBI) rp110590_evr001_16.plt
cover page rp110590_fps.plt
housekeep. plot(1/OBI) rp110590_hks001_16.plt
broad-band image rp110590_im1.plt
hard-band image rp110590_im2.plt
soft-band image rp110590_im3.plt
SIMBAD source plot rp110590_smx.plt
Table 9.2:  Data type description for U.S.-format filtered and non-filtered PSPC data

     

 

File description Sample file in USRDA
photon event list rh110267.fits
HRI image rh110267_img.fits
SIMBAD sky list rh110267_sky.fits
public contents file rh110267.public_contents
complete photon store rh110267.cps
merged status history rh110267.mob
split status history rh110267.ots
standard good intervals rh110267.sgi
standard screen results rh110267.ssc
temporal status history rh110267.tsh
processing parameters rh110267.anp
bright earth intervals rh110267.obi
bright earth event list rh110267.obt
processing parameters rh110267.par
charged particle bkg rh110267.cpb
detector background rh110267.dbm
quantum efficiency map rh110267.qeg
aspect histogram rh110267.ah
aspect offsets rh110267.ao
count rate histogram rh110267.dms
science frame quality rh110267.htl
lifetime factors rh110267.ltf
observation angles rh110267.oan
HRI sampling histogram rh110267.s1d
HRI SAA rates rh110267.saa
split orbit rh110267.so
science rates rh110267.sps
SIMBAD sky plot rh110267_sky.plt
rates plot (1/OBI) rh110267_str.plt
SIMBAD source list rh110267_sky.asc
V&V report rh110267_vv2925.report
Table 9.3:  Data type description for U.S.-format HRI data

     

 

File description Sample file in USRDA
photon list wp110130_events.tfits
broad-band image wp110130_image1.ifits
hard-band image wp110130_image2.ifits
soft-band image wp110130_image3.ifits
energy-coded image wp110130_imageec.ifits
exposure map wp110130_mexmap.ifits
public contents file wp110130.public_contents
mpe public contents wp110130.public_contents_mpe
rejected events wp110130_difevents.tfits
response matrix wp110130_drmpspc.ifits
instrument map wp110130_moimp.ifits
off-axis area, PSPC-B wp110130_effarea_pspcb.tfits
off-axis area, PSPC-C wp110130_effarea_pspcc.tfits
quality file wp110130_quality.tfits
attitude file wp110130_attitude.tfits
event rates wp110130_eventrates.tfits
orbit wp110130_orbit.tfits
Table 9.4:  Data type description for MPE-format filtered and non-filtered PSPC data

  

 

File description Sample file in USRDA
photon event list wh110131_events.mt
public contents file wh110131.public_contents
mpe public contents wh110131.public_contents_mpe
rejected events wh110131_difevents.mt
effective area wh110131_effarea_hri.mt
hot spot map wh110131_hotmat.mt
quantum efficiency map wh110131_qefficiency.mt
aspect wh110131_attitude.mt
event rates wh110131_eventrates.mt
orbit wh110131_orbit.mt
data quality wh110131_qualitylimits.mt
data quality limits wh110131_quality.mt
Table 9.5:  Data type description for MPE-format HRI data

 


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