Update #1 - Final Update – After switches were replaced in the GU4 server rack, the ground station returned to normal operations.

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

Date/Time Issued:  October 14, 2023 1420Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:   October 12, 2023 0002Z

Date/Time of Expected End:  October 12, 2023 1645Z

Length of Outage:  16 hours and 43 minutes

Details/Specifics of Change: Guam 4 LEO Ground Station stopped sending alert data on October 12, 2023 at 0002 Z. The LUT vendor is working on repairing the issue.

Impact: Medium - Western Pacifica US AOR Distress detection/reporting may be delayed. LEOSAR distress alert 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   

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