Delivered-To: igsmail@igscb.jpl.nasa.gov Message-ID: <438BACA6.9020807@jpl.nasa.gov> Date: Mon, 28 Nov 2005 17:19:34 -0800 From: "Angelyn W. Moore" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.7.12-1.3.1 To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-5263]: Station operators, please check that all data is at DCs Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 28 Nov 17:19:35 PST 2005 Message Number 5263 ****************************************************************************** Authors: Angelyn Moore and Carey Noll Dear IGS colleagues, and station operators in particular: The IGS will begin a large reprocessing effort soon. Analysis Centers will be re-analyzing the complete historical IGS data set, applying modern methods to yield more consistent results. As such, the ACs will be looking for the complete set of historical data from many sites, and ask that you check to make sure all the historical data of sites you manage is available at the IGS Data Centers. There is special interest in data from early in a station's history, even before a station became an IGS station (as long as it was operated stably), so please pay attention to whether you have data from earlier than appears in IGS archives. The deadline for this effort is March 2006. We have put together a few summaries that will help make this easier. 1. The GSAC (http://gsac.ucsd.edu) was used to make 1 report per site, including former sites, showing what data was found at all the participating DCs. There is one line per year and the days which have data are listed. http://igscb.jpl.nasa.gov/igscb/station/general/historicaldata These go back to 1990 for interest, but 1994 and forward is the period of most importance. 2. CDDIS shows what days of data it is missing for each site, under ftp://cddis.gsfc.nasa.gov/pub/reports/gps/daily/missing There are also yearly summaries going back to the early 1990's at ftp://cddis.gsfc.nasa.gov/pub/reports/gps/daily/ 3. You can use the search by site feature at http://sopac.ucsd.edu/cgi-bin/dbDataBySite.cgi 4. Some European regional stations may not be in the GDCs, so you should also check ftp://igs.ifag.de/IGS/reports/ Mirroring equalizes the DC holdings to a great degree, so checking that at least one of these DCs has all of your data will help ensure that the reprocessing effort will be able to find it. If you have locally-archived data that is not at one of these DCs, please make arrangements to have it uploaded. DC contacts are available in http://igscb.jpl.nasa.gov/organization/centers.html It is also important to replace any partial files at the DCs with full versions, if available. We are working on reporting partial files to you for easy checking against your data holdings. Please keep this in mind. If we can be of any assistance, just let us know. Best regards, Angelyn Moore (Network Coordinator) and Carey Noll (Data Center WG Chair)