The Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center (GSFC) seeks a creative, innovative individual with strong teamwork and leadership skills to serve as Director of the High Energy Astrophysics Science Archive Research Center (HEASARC). This will be a permanent civil servant position. + Learn more.

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filter intensity

After you have made a light curve, you can enter intensity selections, given as a range of acceptable values. The scale for intensity is read from the plot given in PLOT CURVE. The task converts this intensity selection to a set of GTI's, which are passed to the next EXTRACT run.

So 

xsel > filter intensity .1-1.5

will PASS only those bins with an intensity between .1 and 1.5.

For v2.5b this task was modified to run using the ftool mkintensfilt instead of the ftool maketime for better handling edge effects.


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

The Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center (GSFC) seeks a creative, innovative individual with strong teamwork and leadership skills to serve as Director of the High Energy Astrophysics Science Archive Research Center (HEASARC). This will be a permanent civil servant position. + Learn more.