X-Sympa-To: ids.analysis.forum Received: from hector.cls.fr (osis.cls.fr [62.161.32.21]) by hermes3.cls.fr (8.9.3/8.9.3) with ESMTP id NAA27103 for ; Wed, 10 Sep 2008 13:24:54 GMT Received: by hector.cls.fr (Postfix) id 8D35B54BFB; Wed, 10 Sep 2008 13:24:54 +0000 (GMT) Delivered-To: ids.analysis.forum@cls.fr Received: from CLS-VALETTE.cls.fr (orange-103.cls.fr [62.161.32.14]) by hector.cls.fr (Postfix) with ESMTP id 67C7317411; Wed, 10 Sep 2008 13:24:54 +0000 (GMT) Message-Id: <7.0.1.0.2.20080910151901.03d860a8@cls.fr> X-Mailer: QUALCOMM Windows Eudora Version 7.0.1.0 Date: Wed, 10 Sep 2008 15:24:53 +0200 To: ids.analysis.forum@cls.fr From: Jean-Jacques Valette Subject: News about IDS combinations Cc: IDS Governing board , John.Dow@esa.int Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: 8bit X-Validation-by: frank.g.lemoine@nasa.gov Dear colleagues Since the two last IDS Analysis Working Group meetings in March and June 2008, the analysts have been very active improving their software or processing data in preparation for ITRF2008, providing longer SINEX time series. One important news is that ESA/ESOC has recently delivered a one year series derived from SPOT's and Envisat. The following plot ftp://ftp.cls.fr/pub/ids-cls/Combinations/esawd01/T7P_5AC_sept08.gif shows the combination of the ESA/ESOC solution with those of the other analysis centers (IGN, LCA, GOP, and INA). One can see in the 2005 weekly combination that 5 ACs may contribute to the IDS Earth reference frame activity. Two of them (IGN, CLS/LEGOS) deliver regular weekly solutions. We congratulate ESA/ESOC on their contribution, which is on par with the other analysis centers. It is extremely encouraging to have five confirmed contributors to the next ITRF solution. We invite the analysis centers, to provide an update on the processing activities, in advance of the IDS Workshop in Nice, France, so that the longest possible series will be available in advance of the meeting to prepare the combination for the meeting and prepare the IDS ITRF2008 contribution. Regards JJ. Valette & F. Lemoine ------------------------------------------------------------------------------ Jean-Jacques VALETTE (Jean-Jacques.Valette@cls.fr) COLLECTE LOCALISATION SATELLITES 8-10 Rue Hermès Parc Technologique du Canal 31520 Ramonville St-Agne FRANCE Tel (+33) 05.61.39.47.62 Fax (+33) 05.61.39.48.06 http://www.cls.fr -------------------------------------------------------------------------------