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- W2489594639 abstract "Fault protection as a discipline involves a collection of flight software logic and operational processes for detecting unacceptable anomalous behavior, responding prior to reaching criticality, restricting the propagation of a failure beyond a fault containment region, and recovering the vehicle back to full or degraded functionality if possible. The System Fault Protection (SFP) design for the SMAP Earth orbiter was put to the test during its 90-day vehicle Commissioning activities. During this time, the SFP software autonomously protected the vehicle from multiple faults to critical hardware, and the operations team successfully returned the observatory to its science state. The SFP also performed well in the presence of anomalous behavior below true safety limits by not taking unnecessary response actions, instead allowing the operations team time to monitor the behavior. Certain aspects of the SFP design were modified during operations via both parameter updates and a full flight software update in order to better match the vehicle behavior in the flight environment. An evaluation of the SMAP SFP performance during vehicle Commissioning will be provided in this paper, as well as a set of lessons learned largely focused on visibility, SFP mutability in operations, responses to peripheral device faults, and Safe Mode recovery and design. By capturing some of the knowledge gained during SMAP Commissioning, it is intended that this paper provide guidance for making future System Fault Protection designs more robust and supportive of operations." @default.
- W2489594639 created "2016-08-23" @default.
- W2489594639 creator A5054400854 @default.
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- W2489594639 date "2016-03-01" @default.
- W2489594639 modified "2023-09-30" @default.
- W2489594639 title "The soil moisture active passive mission: Fault protection performance and lessons learned" @default.
- W2489594639 cites W1973001228 @default.
- W2489594639 doi "https://doi.org/10.1109/aero.2016.7500705" @default.
- W2489594639 hasPublicationYear "2016" @default.
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