format=flowed ****************************************************************************** dorismail 20-Jul-2011 17:45:07 Message No 0759 ****************************************************************************** Author: Pascal Willis Subject: AGU session / satellite orbit and attitude modelling/estimation Dear colleagues, This year’s AGU Fall Meeting features a session (described below) on satellite orbit and attitude modelling/estimation – please consider submitting an abstract. The deadline for submissions is August 4th, 2011. Use the URL: http://sites.agu.org/fallmeeting/ and the session number (G17) to find further details. Satellite Orbits and Attitude: attacking the error budgets (session G17). Accurate satellite orbit and attitude determination underpin geodesy: errors in such parameters alias easily into data products (e.g. geocenter motion or sea level rise). New GNSS constellations are being launched and new position-critical LEO missions (Jason-2, GOCE, Cryosat-2) are on orbit. Our challenge is to determine orbits at the centimetre/sub-centimetre level. However, modelling of satellite surface forces is still problematic. Time series analysis of estimated tracking station coordinates indicates significant energy in residuals at draconitic and beta-prime (solar) related periods. We invite papers across the orbit and attitude domain, at all altitudes and inclinations: near earth, deep space and other planets. We hope to see you there. Yours, Marek (Ziebart) and Pascal (Willis) -- ---------------------------------------------------------------------- Pascal Willis Institut de Physique du Globe de Paris Ph : +33-(0)1-57-27-84-81 Etudes Spatiales et Planetologie FAX: +33-(0)1-57-27-84-82 35 rue Helene Brion Em : willis@ipgp.fr Paris 75013, France http://www.ipgp.fr/~willis ---------------------------------------------------------------------- Cliquez sur l'url suivante https://www.mailcontrol.com/sr/ienf0jS++cvTndxI!oX7UmeTbKCZHRkRyU9bi51btQ!jzCeOWAOC6DiIcfamEOpSbviV5PEk+hibYw94u+b0NQ== si ce message est indésirable (pourriel). Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr