Update #1 (Final Update): After investigation, the LUT vendor determined that patching activities had inadvertently caused the outage. The problem was corrected and the Alaska 1 and 2 ground stations returned to normal operation.

Topic:  SARSAT Alaska 1/2 Low Earth Orbit (LEO) Ground Stations Offline

Date/Time Issued: August 20, 2020 2110Z

Product(s) or Data Impacted: SARSAT alert data

Date/Time of Initial Impact: August 20, 2020 1658Z

Date/Time of Expected End: August 20, 2020 2018Z

Length of Outage: 3 hours, 20 minutes

Details/Specifics of Change:  Alaska 1 and 2 LEO Ground Stations in Fairbanks, AK are not receiving alert data. The LUT vendor is investigating the issue.

Impact: Medium- Missed pass vulnerability to other Ground Station sites being down significantly increased. Distress alert detection/reporting may be delayed.

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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