****************************************************************************** dorismail 07-Sep-2007 16:29:08 Message No 0510 ****************************************************************************** Author: Laurent Soudarin Subject: new DORIS LCA sinex series Dear colleagues, LCA is providing now a new series called lcawd18. It is the result of several evolutions brought to our DORIS processing. A new set of models was taken into account in the orbit computation: -the GRACE-derived gravity model EIGEN-GL04S which includes annual and semi-annual terms of the low coefficients (up to 50); - ITRF2005 ; - a priori tropospheric zenith delays, derived from ECMWF meteorological model. This new configuration eliminates the systematic bias of the scale factor which appeared in our previous coordinates solutions. Moreover, the data processing is now fitted for a weekly delivery to IDS. Sinex for the period January 2005-July 2007 are still available at the Data Centers ftp://cddis.gsfc.nasa.gov/pub/doris/products/sinex_series/lcawd/ ftp://doris.ensg.ign.fr/pub/doris/products/sinex_series/lcawd/ The next deliveries will be announced by DORISreport. We plan to provide also in the next weeks weekly coordinates time series (stcd and gif) in ITRF2005, EOP and geocenter. The description files will be provided very soon. Best regards, Laurent ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Laurent SOUDARIN Space Systems Metrology COLLECTE LOCALISATION SATELLITES 8-10 rue Hermes Parc Technologique du Canal 31520 Ramonville Saint Agne FRANCE E-mail : Laurent.Soudarin @ cls.fr Tel : +33 (0)5 61 394 849 Fax : +33 (0)5 61 394 806 International DORIS Service http://ids.cls.fr ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr