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Nickel cadmium battery operations on-orbit: Trials, tribulations, and success on the Upper Atmosphere Research Satellite
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rao, Gopalakrishna M. Miller, Scott D. |
| Copyright Year | 1994 |
| Abstract | The Upper Atmosphere Research Satellite (UARS), designed, built, integrated, tested and operated by NASA and Martin Marietta is a low-Earth orbiting, Earthobserving 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) nickelcadmium (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, its MPS, the FOT's operational battery management, and the observed spacecraft battery performance. 'lk Martin Marietta Services Inc. Goddard Operations, Lanham MD 1993 NASA Aerospace Battery Workshop -459Nickel-Cadmium Teclmologies Session https://ntrs.nasa.gov/search.jsp?R=19940023617 2019-12-30T16:46:44+00:00Z |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19940023617.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
