Update #1 (Final Update): The LUT vendor restarted the down converter and Alaska 4 returned to normal operations.


Topic:  SARSAT Alaska 4 Low Earth Orbit (LEO) Ground Station Offline


Date/Time Issued:  April 21, 2021 1415Z


Product(s) or Data Impacted: SARSAT alert data


Date/Time of Initial Impact:  April 21, 2021 0256Z   


Date/Time of Expected End:  April 21, 2021 1331Z


Length of Outage:  10 Hours and 35 minutes


Details/Specifics of Change:  The Alaska 4 (AK4) LEO Ground Station located in Fairbanks, AK  is not receiving pass solution data. The maintenance vendor has been notified.


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


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


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


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