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.

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clear intensity

Clears the current intensity selection. Again, you can choose 'all', or last, or give a file list. The files are all named xsel_intensity_gtinnn.xsl.

There is one slightly non-obvious point here: the following sequence 


xsel > extract curve
xsel > filter intensity 0.5-0.9
xsel > extract all
...
xsel > clear intensity
xsel > filter intensity 1.0-1.5


will result in all the data being eliminated. The reason is that the clear intensity clears the GTI's, but the next filter intensity acts upon the lightcurve which was produced with these GTI's.

To produce the desired effect, instead do 


xsel > extract curve
xsel > filter intensity 0.5-0.9
xsel > extract all
...
xsel > clear intensity
xsel > extract curve
xsel > filter intensity 1.0-1.5



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Last modified: Tuesday, 10-Jan-2023 11:03:01 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.