Message-ID: <453577AD.6070001@jpl.nasa.gov> Date: Tue, 17 Oct 2006 17:39:09 -0700 From: "Angelyn W. Moore" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.13) Gecko/20060501 Fedora/1.7.13-1.1.fc5 To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-5443]: Upcoming format change igs.snx SINEX template Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 17 Oct 17:39:11 PDT 2006 Message Number 5443 ****************************************************************************** Author: Angelyn Moore Dear Colleagues, Users of the igs.snx SINEX template, please check this proposed revision to go along with the change in reference frame and antenna calibrations. ftp://igscb.jpl.nasa.gov/pub/station/general/proposed.igs.snx or alternatively, http://igscb.jpl.nasa.gov/igscb/station/general/proposed.igs.snx Here is a list of the changes made. 1. SINEX version is now 2.00 2. Longitudes are now between -180 and +180 degrees, per SINEX 2.00 3. GPS_PHASE_CENTER values come from igs05_1390.atx 4. GPS_PHASE_CENTER values are given once for all antennas of like type 5. the antenna model used is shown in the last column of GPS_PHASE_CENTER 6. phase centers are only given for antenna+radome pairs that are actually calibrated. See IGSMail #5189, point #2. 7. Nonzero horizontal eccentricities are shown in the SITE/ECCENTRICITY section. From the beginning of the igs.snx template up to now, zeros were written even when nonzero eccentricities exists, for reasons that no one seems to remember. The only affected current stations are NYAL, OBET, and WUHN. It is my plan to make this version the official igs.snx as of 6 November, which is when the igu products will switch. Please send me any comments on this schedule, or the contents of the proposed.igs.snx file. Note: We continue to pursue getting priority former sites into igs.snx for the reprocessing effort, so you may anticipate additions of this type in the near future. Best regards, Angie ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Angelyn W. Moore, Ph.D. Deputy Director, IGS Central Bureau JPL/Caltech Angelyn.W.Moore@jpl.nasa.gov 4800 Oak Grove Dr. MS 238-540 voice: +1 818 354 5434 Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393 6686