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Mars Reconnaissance Orbiter in-flight anomalies and lessons learned : an update

Show simple item record Bayer, Todd J. 2009-08-26T16:05:04Z 2009-08-26T16:05:04Z 2008-03-01
dc.identifier.citation 2008 IEEE Aerospace Conference, Big Sky, Montana, March 1, 2008. en_US
dc.identifier.clearanceno 07-4663
dc.description.abstract The Mars Reconnaissance Orbiter mission has as its primary objectives: advance our understanding of the current Mars climate, the processes that have formed and modified the surface of the planet and the extent to which water has played a role in surface processes; identify sites of possible aqueous activity indicating environments that may have been or are conducive to biological activity; and thus identify and characterize sites for future landed missions; and provide forward and return relay services for current and future Mars landed assets. MRO’s crucial role in the long term strategy for Mars exploration requires a high level of reliability during its 5.4 year mission. This requires an architecture which incorporates extensive redundancy and cross-strapping. Because of the distances and hence light-times involved, the spacecraft itself must be able to utilize this redundancy in responding to time-critical failures. For cases where fault protection is unable to recognize a potentially threatening condition, either due to known limitations or software flaws, intervention by ground operations is required. These aspects of MRO’s design were discussed in a previous paper [Ref. 1]. This paper provides an update to the original paper, describing MRO’s significant in-flight anomalies over the past year, with lessons learned for redundancy and fault protection architectures and for ground operations en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008. en_US
dc.subject Mars Reconnaissance Orbiter en_US
dc.subject Mars climate en_US
dc.subject in-flight anomalies en_US
dc.title Mars Reconnaissance Orbiter in-flight anomalies and lessons learned : an update en_US
dc.type Preprint en_US

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