Update #1 - Final Update:  The maintenance vendor power cycled Alaska 4 and it returned to normal operations at 1547Z, February 17, 2023.

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

Date/Time Issued:   February 18, 2023 1945Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:    February 16, 2023 0734Z

Date/Time of Expected End:  February 17, 2023 1547Z

Length of Outage:  1 day, 8 hours, 13 minutes

Details/Specifics of Change: Alaska 4 LEO Ground Station in Fairbanks, AK is not sending pass solution data. The maintenance vendor is investigating this issue.

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

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

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