Update #1: The LUT vendor was contacted and GUAM 4 returned to normal operations.

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

Date/Time Issued:  September 25, 2023 0214Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:  September 21, 2023 0947Z

Date/Time of Expected End:  September 22, 2023 0042Z

Length of Outage:  14 Hours and 55 minutes

Details/Specifics of Change: The Guam 4 LEO Ground Station has antenna communication issues. The maintenance vendor is working on repairing the issue.

Impact: Medium - LEOSAR Western Pacifica US AOR distress detection/reporting may be delayed. GEOSAR and MEOSAR are operating nominally.

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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