Message-ID: <47AB8A9A.5080607@unavco.org> Date: Thu, 07 Feb 2008 15:47:54 -0700 From: Oivind Ruud User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) To: igsstation@igscb.jpl.nasa.gov Subject: [IGSSTATION-2054]: GODE: two short H-Maser outages Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsstation Precedence: bulk ****************************************************************************** IGS Station Mail 07 Feb 14:48:06 PST 2008 Message Number 2054 ****************************************************************************** Author: Oivind Ruud, UNAVCO Dear Colleagues, The H-Maser clock input to the receiver at the Goddard Space Flight Center in Greenbelt, MD (GODE), had two interruptions in the past few days. The first, one minute, outage was not planned, the second outage was a scheduled maintenance of the H-Maser. During the outages the Ashtech CGRS receiver was not switched to internal clock steering, and the H-Maser lost phase lock and the LO was drifting. The two outage periods were as follows: February 4th (2008.035) 14:07 UTC - 14:08 UTC February 6th (2008.037) 16:30 UTC - 22:15 UTC An updated log reflecting the outages has been submitted to the IGS-CB. We would also like to acknowledge our contact personnel at the Goddard Space Flight Center in managing the outage and restoring operations quickly. Maintenance and operations of the GODE station is a collaborative effort supported by JPL, UNAVCO, and the NASA Goddard Space Flight Center with funding provided by NASA's Earth Surface and Interior Focus Area - Science Mission Directorate. Best regards, -Oivind Ruud