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Battery performance of the SKYNET 4A spacecraft during the first six years of on station operationThe SKYNET 4A spacecraft is a three-axis stabilized geostationary earth-orbiting military communications satellite which was launched on 1 Jan. 1990 aboard a Titan 3 launch vehicle. The power subsystem is a twin bus, twin battery semi-regulated system and is equipped with one 28-cell, 35 Ampere-hour battery per bus. The cells were manufactured by Gates Aerospace Batteries of Gainesville, FL, and the batteries were built, tested and integrated by British Aerospace Space Systems Ltd. This paper presents a brief survey of the first six years of on-station operation and the operational battery management strategy that has been adopted. Thermal management constraints have led to an unconventional battery operational regime. However, no sign of degradation is evident and the observed spacecraft battery performance remains nominal.
Document ID
19960020576
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Johnson, P. J.
(MATRA Marconi Space Systems Stevenage, United Kingdom)
Francis, N. R.
(MATRA Marconi Space Systems Stevenage, United Kingdom)
Date Acquired
August 17, 2013
Publication Date
February 1, 1996
Publication Information
Publication: The 1995 NASA Aerospace Battery Workshop
Subject Category
Energy Production And Conversion
Accession Number
96N24125
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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