Topic: SMD Latency at McMurdo Expected due to 11/5 Black Island Antenna Maintenance


Date/Time Issued: October 28, 2020 2010Z


Product(s) or Data Impacted:  N20 Products


Date/Time of Initial Impact:  November 5, 2020 0430Z (Outage 1) and November 5, 2020 2200Z (Outage 2)


Date/Time of Expected End: November 5, 2020 0630Z (Outage 1) and November 6, 2020 0000Z (Outage 2)


Length of Outage:   2 hours for each outage


Details/Specifics of Change:  Maintenance work and damage assessment are planned on the McMurdo 11m terminal at Black Island on November 5. This activity will take place during two maintenance windows. All MMCS customers will be impacted(JPSS/DMSP). IP traffic to/from McMurdo will be interrupted. For NSF traffic, this will affect Internet access, off-continent phone calls, file data transfer, AFTAC, CTBTO, and Wells Fargo ATM services.

Contact Information for Further Information: ESPC Operations at and 301-817-3880

Web Site(s) for applicable information: N/A

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