Sessions

Xselect supports multiple sessions in the same directory, which can even run simultaneously, provided they have distinct names. On entry into Xselect, you will be prompted for a session name. Then all the temporary and product files written out by Xselect will have this session name as a prefix. The default session name is xsel. So for instance the light curve output qdp file is called xsel_curve.xsl. You can also enter the session name when launching Xselect:

% xselect prefix=myown

will start up a session with the name myown.

When you exit Xselect, you are prompted whether you wish to save the session or not. If you respond yes, all the temporary files are saved, otherwise they are all removed. Do not erase any of these files on your own if you wish to restore the session at a later date, or Xselect will no longer be able to do so.

To restore a saved session, simply give your new session the same name as that of the session, and you will be prompted whether to restore the saved session. One caution, if you respond no to this prompt, the previous session will be cleared before Xselect proceeds and you will loose all the product files (except of course those you saved with your own filenames, with the SAVE command).

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Last modified: Tuesday, 10-Jan-2023 11:03:02 EST

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.