Topic:  SARSAT FL4 Low Earth Orbit (LEO) Ground Station Offline

Date/Time Issued:  May 22, 2025 1405Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:    May 17, 2025 2305Z

Date/Time of Expected End:  May 21, 2025 2149Z

Length of Outage:  3 Days, 22 Hours and 44 Minutes.

Details/Specifics of Change:  The FL4 LEO Ground Station is not sending pass solution data. The Lut Vendor is investigating.

Impact: Minor-Dual satellite tracking capability lost. Distress alert detection/reporting timeliness affected.

Contact Information for Further Information: USMCC Operations usmcc@noaa.gov at 
301-817-4576

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