Max-Planck-Institut für extraterrestrische Physik
Archived Data
Deutsche Version MPE HEG X-Ray Astronomy Wave ROSAT
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Archived Data
For each (filter-) observation an image (IMA),
a merged exposure map (MEX),
and an instrument map (INS)
can be found on the sub-directories
XUV_ARCHIVE:[XUV.<n>00_ROR],
where <n> = 1, 2,...,9,A, depending on the first digit
of the ROR number.
All images are 512 
512 MIDAS images (.bdf),
which are converted to FITS and then compressed,
using the standard UNIX compress utility.
File names are of the form <ROR-nr>.<type><nn>_Z
where <type> is either IMA, INS, or MEX
and <nn> is the number of the filter observation,
e.g., 200141.INS01_Z.
Typical sizes of the compressed images are 25-75 kbytes.
- UNIX users can apply their usual compress facility to decompress
the data. After renaming the extension of the compressed dataset
from _Z to .Z type:
compress -d 200141.ima01.
- VMS users can copy the executible
COMPRESS.VMS from XUV_ARCHIVE:[XUV].
Then, at your home computer, rename it to COMPRESS.EXE
and to install it, type:
$ COMPRESS := $ <disk>:[path] COMPRESS.EXE.
To decompress a dataset, type:
$ COMPRESS -d 200141.IMA01.
For the future, it is intended to also keep the photon event files of all sources detected by the WFC (extraction radius TBD) in the on-line archive.
For all public data the complete set of files (including photon files, attitude file etc. in EXSAS compatible FITS format) is available on tape. The request should contain the ROR number of the observation, your postal address and the prefered transport medium (EXABYTE (default) or mag-tape).
If you have problems/suggestions please send mail to xray-info @ mpe . mpg . de