In this work, we analyze a historical archive of single event upsets (SEUs) maintained by Inmarsat, one of the world's leading providers of global mobile satellite communications services. Inmarsat has operated its geostationary communication satellites and collected extensive satellite anomaly and telemetry data since 1990. Over the course of the past twenty years, the satellites have experienced more than 226 single event upsets (SEUs), a catch-all term for anomalies that occur in a satellite's electronics such as bit-flips, trips in power supplies, and memory changes in attitude control systems. While SEUs are seemingly random and difficult to predict, we correlate their occurrences to space weather phenomena, and specifically show correlations between SEUs and solar proton events (SPEs). SPEs are highly energetic protons that originate from solar coronal mass ejections (CMEs). It is thought that when these particles impact geostationary (GEO) satellites they can cause SEUs as well as solar array degradation. We calculate the associated statistical correlations that each SEU occurs within one day, one week, two weeks, and one month of 10 MeV SPEs between 10 – 10,000 particle flux units (pfu). However, we find that SPEs are most prevalent at solar maximum and that the SEUs on Inmarsat's satellites occur out of phase with the solar maximum. Ultimately, this suggests that SPEs are not the primary cause of the Inmarsat SEUs. A better understanding of the causal relationship between SPEs and SEUs will help the satellite communications industry develop component and operational space weather mitigation techniques as well as help the space weather community to refine radiation models.


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    Titel :

    Causal relationships between solar proton events and single event upsets for communication satellites


    Beteiligte:
    Lohmeyer, Whitney Q. (Autor:in) / Cahoy, Kerri (Autor:in) / Shiyang Liu, (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.03.2013


    Format / Umfang :

    2737959 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Causal relationships between solar proton events and single event upsets for communication satellites

    Lohmeyer, Whitney Quinne / Cahoy, Kerri / Liu, Shiyang | DSpace@MIT | 2013

    Freier Zugriff

    Single event upsets in space

    PETERSEN, E. | AIAA | 1983


    Anomalies due to Single Event Upsets

    Robinson, P. | Online Contents | 1994



    Estimating Rates Of Single-Event Upsets

    Zoutendyk, John A. | NTRS | 1988