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How do I get access to the ROSAT archive?

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• First, you should find out what you want to retrieve -- see question #2.

• Then, you can access data

  1. via ftp:

     There are 3 ftp sites (GSFC, MPE and Leicester) which serve public ROSAT data. At GSFC, the ROSAT data archive directory structure is

     rosat/<inst>/processed_data/<group>/<sequence_id>

     where

     <sequence_id> is of the form r<detector-code><ROR><obs-code><extensions>

     (for example, rp900176a01; see http://heasarc.gsfc.nasa.gov/docs/rosat/rdf_seq_names.html for more information on sequence naming conventions)

     <group> is the 1st digit of the ROR number x 100000 (if the sequence_id = rp900176a01, the group is 900000)

     <inst> is either pspc or hri

     So, to retrieve the sequence rp900176a01 from the GSFC archive, do the following:

                    your-machine% ftp legacy.gsfc.nasa.gov
                    username: anonymous
                    password: your_name@
                    ftp> cd rosat/data/pspc/processed_data/900000/rp900176a01
                    ftp> bin
                    ftp> hash
                    ftp> mget *.*
                    ftp> quit  
                    

     You can also use your web browser to access any dataset via anonymous ftp too; for example, pointing your browser at the URL ftp://legacy.gsfc.nasa.gov/rosat/data/pspc/processed_data/900000/rp900176a01 will point you to the archive data directory containing the rp900176a01 data files; to download, just click.

  2. via BROWSE;

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Page Author: Michael F. Corcoran

Last modified April 28, 1999

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This file was last modified on Monday, 25-Jun-2012 15:16:20 EDT