BATSE Sky Exposure

(2) NASA/MSFC; (3) University of Alabama in Huntsville; (4) Teledyne Brown; (5) USRA at NASA/MSFC; (6) Massachusetts Institute of Technology); Charles A. Meegan (2); Geoffrey N. Pendleton (3); Jefferson M. Kommers (6); Jon Hakkila (1); Michael McCollough (5)

arxiv: astro-ph/9712091 · v1 · submitted 1997-12-05 · 🌌 astro-ph

BATSE Sky Exposure

Jon Hakkila (1) , Charles A. Meegan (2) , Geoffrey N. Pendleton (3) , William Henze (4) , Michael McCollough (5) , Jefferson M. Kommers (6) , Michael S. Briggs (3) ((1) Mankato State University , (2) NASA/MSFC

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(3) University of Alabama in Huntsville (4) Teledyne Brown (5) USRA at NASA/MSFC (6) Massachusetts Institute of Technology)

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classification 🌌 astro-ph

keywords exposurebatsealgorithmearthangularblockageburstcalculation

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Angular sky exposure is presented for a number of published BATSE gamma-ray burst catalogs. A new algorithm was required due to telemetry gaps resulting from onboard tape recorder failures; the new algorithm improves the 1B Catalog exposure calculation. The most influential effects limiting BATSE's exposure are (1) deadtime due to triggering, (2) sky blockage by the Earth, and (3) trigger disabling when the spacecraft is in the SAA and over other specific Earth locations. Exposure has improved during the CGRO mission as a result of decreased Solar flares and magnetospheric particle events.

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BATSE Sky Exposure

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