From: Jim Ray (USNO 202-762-1444) Message-Id: <200204031351.IAA28955@maia.usno.navy.mil> Subject: [IGSMAIL-3824]: more Radid station clocks from USNO To: igsmail@igscb.jpl.nasa.gov Date: Wed, 03 Apr 2002 8:51:17 EST Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 03 Apr 05:51:19 PST 2002 Message Number 3824 ****************************************************************************** Author: Jim Ray Starting 28 March, Jim Rohde has made several changes to our IGS Rapid solution procedures to include more stations in our daily clock submissions. As before, the precise point positioning method is applied to determine clock estimates for a set of stations in addition to the 34 sites used in our global network. Our daily submissions now routinely include more than 100 receiver clocks (in addition to all the satellite clocks). The additional stations are selected based on the priority: 1) IGS stations colocated at BIPM timing labs; 2) stations equipped with H-masers; 3) stations equipped with Cs clocks; 4) stations equipped with Rb clocks. (See the file at http://maia.usno.navy.mil/gpst/clock-fids a list of the specific sites.) Assuming at least one other Analysis Center includes the same sites in their submissions, this change should be very beneficial for users of the IGS combined clock products, especially for the IGS/BIPM timing project.