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Large solar proton events and geosynchronous communication spacecraft solar arrays

Journal Article · · Journal of Spacecraft and Rockets; (United States)
DOI:https://doi.org/10.2514/3.26289· OSTI ID:5962234
; ; ;  [1]
  1. AT T Bell Laboratories, Murray Hill, NJ (USA) AT T Bell Laboratories, Cranbury, NJ (USA) NOAA, Space Environnment Laboratory, Boulder, CO (USA)
The occurrence of the high fluence solar events in October 1989 led to a reexamination of some of the assumptions made on the appropriate energy spectral representation of the large solar-flare proton events used for engineering designs of solar arrays for geosynchronous communication spacecraft. This paper discusses the solar event characteristics and some aspects of the design of solar proton fluence models. It is estimated that, for a design of a spacecraft with about 12-15-yr life expectancy, it will be necessary to take into account the launch data in the particular phase of the solar cycle (i.e., whether two solar maxima or one) that is likely to be encountered. 19 refs.
OSTI ID:
5962234
Journal Information:
Journal of Spacecraft and Rockets; (United States), Journal Name: Journal of Spacecraft and Rockets; (United States) Vol. 28; ISSN JSCRA; ISSN 0022-4650
Country of Publication:
United States
Language:
English