Topic: SARSAT Medium-Earth Orbit (MEO) Satellite 318Unusable

Date/Time Issued: March 13, 2018 1715Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: February 01, 2018 0000Z

Date/Time of Expected End: March 05, 2018 2200Z

Length of Outage: 32 Days, 22 Hours

Details/Specifics of Change:MEOSAR satellite 318 (A USAF operated GPS satellite) was unusable as of 01 February 2018 and permanently removed from the MEOSAR constellation on 05 March 2018 at 2200Z.

Impact:Minor-Due to the robustness of the MEOSAR space segment, the loss of one instrument insignificantly impactsdistress alert detection/reporting timeliness.

Contact Information for Further Information:USMCC Operationsusmcc@noaa.govat 301-817-4576

Web Site(s) for applicable information:N/A

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