Message-ID: <480E47D2.5050807@unavco.org> Date: Tue, 22 Apr 2008 14:17:22 -0600 From: Oivind Ruud User-Agent: Mozilla Thunderbird 1.0.7 (Windows/20050923) To: igsstation@igscb.jpl.nasa.gov Subject: [IGSSTATION-2222]: SHAO: GPS receiver switched to external H-Maser clock Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsstation Precedence: bulk ****************************************************************************** IGS Station Mail 22 Apr 13:17:35 PDT 2008 Message Number 2222 ****************************************************************************** Author: Oivind Ruud, UNAVCO Dear Colleagues, The ASHTECH UZ-12 receiver at the Shanghai Astronomical Observatory, PRC (SHAO) station has been switched from internal clock to an external 5 MHz H-Maser reference. The switch occurred between 14:10 - 14:16 UTC on April 17th (2008.108). New data is available from the data centers, and an updated log has been submitted to the IGS-CB. We would like to acknowledge the help and assistance from personnel at the Shanghai Astronomical Observatory in facilitating this upgrade. Maintenance and operations of the SHAO station is a collaborative effort supported by JPL, UNAVCO, and the Shanghai Astronomical Observatory with funding provided by NASA's Earth Surface and Interior Focus Area - Science Mission Directorate. Best Regards, -Oivind Ruud