NDLI: Nickel cadmium battery operations on-orbit: trials, tribulations, and success on the upper atmosphere research satellite

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Nickel cadmium battery operations on-orbit: trials, tribulations, and success on the upper atmosphere research satellite

Content Provider	NASA Technical Reports Server (NTRS)
Author	Miller, Scott D. Rao, Gopalakrishna M.
Copyright Year	1994
Description	The Upper Atmosphere Research Satellite (UARS), designed, built, integrated, tested, and operated by NASA and Martin Marietta is a low-Earth orbiting, Earth-observing spacecraft which was launched via Space Shuttle Discovery on September 12, 1991 and deployed three days later. The Modular Power Subsystem (MPS) onboard the satellite is equipped with three NASA Standard 50 Ampere-hour (Ah) nickel-cadmium (NiCd) batteries. McDonnell Douglas Electronics Systems Company fabricated the MPS, and batteries from Gates Aerospace Batteries cells. Nominal battery performance was achieved for the first four months of spacecraft operation. First evidence of anomalous battery performance was observed in January 1992, after the first maximum beta angle (low Depth of Discharge) period. Since then, the Flight Operations Team (FOT), under the direction of Goddard Space Flight Center's UARS Project and Space Power Application Branch, has monitored and managed battery performance by adjusting solar array offset angle, conducting periodic deep discharge, and controlling battery recharge ratio. This paper covers a brief overview of the UARS, the FOT's operational battery management, and the observed spacecraft battery performance.
File Size	1666142
Page Count	32
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940023617
Archival Resource Key	ark:/13960/t3033s263
Language	English
Publisher Date	1994-02-01
Access Restriction	Open
Subject Keyword	Energy Production And Conversion Spacecraft Power Supplies Flight Operations Solar Arrays Spacecraft Performance Nickel Cadmium Batteries Upper Atmosphere Research Satellite Uars Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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