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fast

Apply timing corrections to time column


ASCA fast mode data has no positional information, but the RAWY column contains corrections to the time column. The fast task applies these timing corrections to the time column of the file. The output is written to the workspace, and can be used in further calls to extract,...

To use fast, you need to have made an unbinned image in one of the other detectors, or in the detector you are analysing if there is some bright mode data available as well as the fast mode data. Fast will ask you for the X-position of the source, and for the instrument from which you got this information.

Syntax: 

xsel > fast <x_image_center> <from_instrument> [save_file]


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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.