Timing of Increasing Electron Counts From Geosynchronous Orbit to Low Earth Orbit

Language: English

Published by Creative Media Partners, LLC Okt 2012, 2012

1286862841 / 9781286862841

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Neuware - Under certain conditions, high energy electron fluxes can increase over short periods of time in the outer radiation belt and diffuse to low altitudes. Sudden increases of high energy electron densities at low altitudes can drastically damage unsuspecting low-earth-orbit satellites. The progression of electron flux increases from a geosynchronous orbit to low-earth orbit during an electron event is somewhat unknown. If the beginning of electron flux increases at low-earth-orbits could be anticipated, warnings could be issued to space system operators allowing time to take proper measures to protect and minimize satellite damage extending satellite lifetimes and space mission operations. The Compact Environment Anomaly Sensors (CEASE) onboard the DSP-21 and TSX-5 satellites collected dosimeter data of electrons gt; 1.2 MeV and protons gt; 25 MeV. The orbits of the satellites and the particle detection of CEASE provided an opportunity to sample the high energy electron population fluxes at GEO and LEO during electron events. The high energy electron CEASE data was extracted from DSP-21 and TSX-5 when each satellite crossed an approximate geosynchronous L-Shell range (L=6.5-6.7). Onsets of electron events at each orbit were determined from the data. Onset comparison showed the progression of elevated electron fluxes from GEO to LEO to be between one and four days. Further comparison of the electron events to solar wind data suggests that high speed streams are necessary, not sufficient, for an electron event to occur.

Seller Inventory # 9781286862841

Title
Timing of Increasing Electron Counts From Geosynchronous Orbit to Low Earth Orbit
Author
Kirk M Olson
Publisher
Creative Media Partners, LLC Okt 2012
Publication year
2012
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
1286862841
ISBN 13
9781286862841
Item weight
154 grams
Dimensions
234x156x5 mm

AHA-BUCH GmbH

Einbeck, Germany

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