Update #1 M-bM-^@M-^S Final Update M-bM-^@M-^S The LUT Vendor replaced the Low Noise Converter on the Guam 1 GroundStation.TheGuam 1 LEO Ground Station returned to Normal Operations on April 13, 2018 at 1147Z.

Topic: SARSAT Guam 1 Low Earth Orbit (LEO) Ground Station Offline

Date/Time Issued: April 13, 2018 1402Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: April 13, 2018 0419Z

Date/Time of Expected End: April 13, 2018 1147Z

Length of Outage: 7 hours and 28 minutes

Details/Specifics of Change: Guam 1 LEO Ground Station at Andersen Air Force Base, Guam has stopped receiving pass solution data. The maintenance vendor is investigating the problem.

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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