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Determining if the Root Cause of an Anomaly is a Single Event Upset
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2016
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Source: SpaceOps 2016 Conference (2016)
[PDF-467.59 KB]
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Journal Title:SpaceOps 2016 Conference
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Description:The Suomi National Polar-orbiting Partnership (S-NPP) satellite operates in a Sun-synchronous polar orbit of 824 km altitude. In this orbit, S-NPP encounters elevatedenergetic ion fluxes in the South Atlantic Anomaly (SAA) and at high latitudes during solarenergetic particle events, as well as highly energetic ions from outside the solar system. TheS-NPP team has observed ten resets on the same equipment of the Cross-track InfraredSounder (CrIS) instrument since S-NPP’s launch in 2011; two of these were not self-recovering. The initial examination of these events classified them as Single Event Upsets(SEUs). The S-NPP Mission Operations Team (MOT) worked with the NOAA NationalCenters for Environmental Information (NCEI) and the CrIS manufacturer in order todetermine the probable root cause. If an SEU is determined, then the processes utilized on S-NPP highlights the importance of cooperation between multiple teams. If the analysis doesnot yield an SEU root cause, it could provide a foundation for further investigatory research.
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Source:SpaceOps 2016 Conference (2016)
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