Update #1 - Final Update M-bM-^@M-^SM-B After confirming nominal location accuracy from a few US ground stations using new time calibration data provided by the FMCC, the USMCC resumed normal distribution of S13 SARP data.

Topic: SARSAT 13 (METOP B/M1) LEO SatelliteSearch and Rescue Processor (SARP)anomaly

Date/Time Issued:May 11, 2019 1755Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: May 08, 2019 1711Z

Date/Time of Expected End: May 11, 2019 1750Z

Length of Outage: 3 days 39 minutes

Details/Specifics of Change: The SARSAT Satellite S13(METOP B/M1) has suffered an anomaly on the SARP instrument. The anomaly was detected due to degraded location accuracy starting May 0 8,2019at 1711 Z. A SARP reset command was requested by the French MCC on May 10, 2019. The USMCC is currently filtering all S13 SARP data until a recalculated time calibration (TCAL) is received.

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: ESPC Operations atESPCOperations@noaa.govat301-817-3880

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

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