Update #1 - Final Update – The LUT vendor corrected the ground station ID configuration and the LUT returned to normal operations.

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

Date/Time Issued:  October 19, 2023 1508Z

Product(s) or Data Impacted:  SARSAT alert data

Date/Time of Initial Impact:   October 19, 2023 0453Z

Date/Time of Expected End:  October 19, 2023 1311Z

Length of Outage:  8 hours, 18 minutes 

Details/Specifics of Change: After a Hardware refresh  Guam 4 LEO Ground Station   began sending solution data marked with the wrong ground station ID, resulting in solution data not being processed from Guam 4 . 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