### U pdate #1:M-B All N20 SMD has been recovered on McMurdo rev 11836 and processed

Topic: N20 SMD Data

Date/Time Issued: March 01 2020 1613ZM-B

Product(s) or Data Impacted:M-BM-B All N20 M-B products
Date/Time of Initial Impact: March 01, 1430Z M-B

Date/Time of Expected End: 1550Z

Length of Outage:M-B 1 Hour and 20 mins

Details/Specifics of Change:M-B DuringM-B N20 SVL contact 11836 (AOS 1422Z), a data gap was detected.M-B Possible Mis-Track of antenna .Will retrieve missing data at next McMurdo contact.