Update #3 - Final update:M-B After FMCC providedM-Bnew SARP TCAL data, the USMCC has confirmed nominal location accuracy from all US ground stations. Normal distribution ofM-BSARP solution data has resumed for US LEOLUTs on January 24, 2020 atM-B2059Z.

Update #2: All US LEOLUTS have successfully installed Time Calibration data from FMCC at 2059Z. The USMC is currently monitoring all US LEOLUTS scheduled to track S11 to monitor location accuracy returning to normal.

Update #1: After the French Mission Control Center (FMCC) confirmed the S11 SARP issue, EUMETSAT issued a SW restart command at 1535Z.

Topic:M-BM-BSARSAT S11 (METOP-A) LEO Satellite SARP problem

Date/Time Issued:M-BM-BJanuary 25, 2020 0250Z

Product(s) or Data Impacted:M-B SARSAT alert data

Date/Time of Initial Impact:M-B January 24, 2020 0530Z

Date/Time of Expected End: January 24, 2020 2059ZM-B

Length of Outage: 15 hours

Details/Specifics of Change:M-BM-BTheM-BUSMCC reported to France Mission Control Center that SARSAT S11 is having a SARP problem due to the low number of solutions received. France is currently investigating this issue.

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

Contact Information for Further Information:M-BUSMCC OperationsM-Busmcc@noaa.govM-Bat 301-817-4576

Web Site(s) for applicable information:M-BN/A

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