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.


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.

HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

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

The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.