Update #1: Final Update: The maintenance vendor corrected the antenna elevation angle and the LUT returned to normal.

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

Date/Time Issued: June 12, 2023 1357Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:  June 11, 2023 0820Z

Date/Time of Expected End: June 11, 2023 1951Z

Length of Outage: 10 Hours 31 Minutes

Details/Specifics of Change: Alaska 4 LEO Ground Station in Fairbanks, AK is not sending the expected amount of pass solution data. The maintenance vendor has been notified.

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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