Update #1: Final Update - The maintenance vendor rebooted processor servers.

Topic:SARSATAlaska 1 Low Earth Orbit (LEO) Ground Station Offline

Date/Time Issued: April 28, 2018 0405Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: April 28, 2018 0136Z

Date/Time of Expected End: April 28, 2018 0234Z

Length of Outage: 58 minutes

Details/Specifics of Change: AK1LEO Ground Station is not operational. The problem is under investigation by the maintenance vendor following two consecutive missed passes.

Impact: Minor-Dual satellite tracking capability lost for northernmost Ground Station. Distress alert detection/reporting may be delayed.

Contact Information for Further Information:USMCC Operationsusmcc@noaa.govat

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