From Gerd Tue Oct 26 03:22:19 1999 From: Gerd (Gerd) Date: Tue, 26 Oct 1999 3:22:19 PDT Subject: [IGSMAIL-2541] Ultra Rapid Products (IGU) available from GFZ Message-ID: ****************************************************************************** IGS Electronic Mail Tue Oct 26 3:22:19 PDT 1999 Message Number 2541 ****************************************************************************** Author: Gerd Gendt Subject: Ultra Rapid Products (IGU) available from GFZ Dear colleagues, at the last IGS Analysis Center Workshop it was decided to generate ultra rapid products (named igu) twice a day. We would like to inform you that this week GFZ has started to offer such a product. Everybody who is interested in can find the following files in: ftp.gfz-potsdam.de/pub/igsprod/igu/w????/ Files: gfu?????.sp3 gfu?????.erp (the files are usually ready at 02.30 and 14.30 UT) Each sp3-file contains the orbits for 48 hours (starting at 00 UT or 12 UT), where the predicted orbits are beginning after 24 hours (what is marked in a Comment line). The orbits are continuous, based on a long-arc fit through the sp3-files from the last two days. The distribution of hourly sites is not yet optimal. However, with the steadily growing number of hourly sites the situation will improve soon and so the quality of the new product will be better in near future. Compared to the IGR-orbits the first 24 hours (covered with data) and the first 12 hours of the prediction have a quality of 6-10 cm and 10-15 cm, respectively. If you have any questions or comments, don't hesitate to contact us. Best regards Gerd Gendt ****************************************************************************** * _/_/_/ _/_/_/_/_/_/ Gerd Gendt Phone : ++49 331 288 1114 * * _/ _/ _/ GeoForschungsZentrum Fax : ++49 331 288 1111 * * _/ _/_/ _/_/ _/ Aufgabenbereich 1 E-Mail: gendt at gfz-potsdam.de * * _/ _/ _/ _/ Telegrafenberg A17 * * _/_/_/ _/ _/_/_/ D-14473 Potsdam AFTP : \ftp.gfz-potsdam.de * * GERMANY /pub/igsprod * * WWW: http://www.gfz-potsdam.de/pb1/IGS/IGS.html * ****************************************************************************** [Mailed From: Gerd Gendt ]