Update #2: US Low Earth Orbit (LEO) Ground Stations are producing accurate S13 SARP solutions. Normal distribution of SARP solution data has resumed for all US LEOLUTs.

Update #1:The software restart was performed January 3, 2018 at 2237Z. New time calibration data was sent to all Low Earth Orbit (LEO) Ground StationsJanuary 4, 2018at 1350Z. Location accuracy is currently being monitored.

Topic: SARSAT 13 (METOP B)LEO Satellite Search and Rescue Processor (SARP)problem

Date/Time Issued: January 04, 2018 2345Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: January 3, 2018 1243Z

Date/Time of Expected End: January 4, 2018 2245Z

Length of Outage:1 day, 10 hours, 2 minute

Details/Specifics of Change:SARSAT Satellite S13 has suffered an anomaly on the SARP instrument. The anomaly was detected due to the SARP failing to report the McMurdo Orbitography Beacon. This issue was last resolved by issuing a software reset.

Impact:Medium-Loss of Storage/forward capability. Satellite is limited to real-time/local distress detection and relay. Timeliness of global coverage detection and relay affected.

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

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

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