The NOAA-17 break-up was found to be a single, localized debris event producing about100 trackable pieces; there is likely no catastrophic damage to the whole spacecraft. NOAA-17 debris is very much in family with NOAA-16 debris, and DMSP F11 and F13 are very much in family with each other and share similarities with NOAA-16 and 17; it is likely all four (“The Big Four”) share the same debris source. DMSP F13 break-up occurred simultaneous with a known battery overcharge and therefore battery rupture is most likely intermediate cause of the Big Four break-ups; this is a low confidence assessment since other debris sources cannot be definitively ruled out. No root cause was found as the NOAA-17 batteries were all confirmed to have been disconnected from the charge path as intended. Possible conditions for reconnection are all unlikely including short circuits and commanding from a “bad actor.” All related spacecraft pose a risk of similar break-ups for decades to come and are a threat to the critical 800-850 km polar orbit regime; even appropriately decommissioned spacecraft appear to be at risk. Recommendations include an update to the decommissioning procedure and consideration of further investigations and active debris removal, consistent with national policy.


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    Titel :

    NOAA-17 Break-up Engineering Investigation Board Final Report


    Beteiligte:
    Maggie Atkinson (Autor:in) / Carl Gliniak (Autor:in) / Scott Hull (Autor:in) / Tupper Hyde (Autor:in) / Jer Chyi Liou (Autor:in) / Quang-Viet Nguyen (Autor:in) / Brian Walling (Autor:in) / Eric Young (Autor:in)

    Erscheinungsdatum :

    01.08.2021


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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