Delivered-To: igsreport@igscb.jpl.nasa.gov Date: Mon, 17 Nov 2003 15:23:16 +0100 (CET) From: Gerd Gendt To: IGSreport Subject: [IGSREPORT-10778] Improvement in orbit alignment, Resubmission of Final combi (1241,1242) Message-ID: Sender: owner-igsreport Precedence: bulk ****************************************************************************** IGS Electronic Report 17 Nov 06:24:04 PST 2003 Message Number 10778 ****************************************************************************** Author: Gerd Gendt Dear colleagues, during the Final combination of the weeks 1241 and 1242 we had a bug in updating the Bulletin A tables. This caused wrong values for AC LOD BIAS in Table 6 of the Final summaries, and small errors in the ERP solutions (LOD up to 0.006 ms, UT up to 0.050 ms). All other products were not affected. We resubmitted all the products to CDDIS. Sorry for the inconveniences. Additionally, we fixed a longer existing bug in the alignment of the orbits to IGS00. The orbits for the whole week are rotated using the SINEX transformation results from Remi Ferland. Then a finetuning using the daily ERP-fluctuations at each AC is performed. The second step was not corrected for the already performed "weekly" rotation. Starting week 1241 this bug was fixed. Best regards Gerd Gendt ****************************************************************************** * Gerd Gendt * * _/_/_/ _/_/_/_/_/_/ GeoForschungsZentrum * * _/ _/ _/ Department Geodesy and Remote Sensing * * _/ _/_/ _/_/ _/ Telegrafenberg A17 * * _/ _/ _/ _/ D-14473 Potsdam , GERMANY * * _/_/_/ _/ _/_/_/ Phone : ++49 331 288 1114 Fax :++49 331 288 1759 * * E-Mail: gendt@gfz-potsdam.de * * http://www.gfz-potsdam.de/pb1/igs/index_IGS.html * * IGS Analysis Coord.: AFTP://ftp.gfz-potsdam.de/pub/igsacc * * IGS GFZ AC : AFTP://ftp.gfz-potsdam.de/pub/igsprod * ******************************************************************************