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<p class="MsoPlainText">With apologies for cross posting…..<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">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 4<sup>th</sup>, 2011. Use the URL:
<a href="http://sites.agu.org/fallmeeting/">http://sites.agu.org/fallmeeting/</a> and the session number (G17) to find further details.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Satellite Orbits and Attitude: attacking the error budgets (session G17).<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">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. <o:p></o:p></p>
<p class="MsoPlainText">Our challenge is to determine orbits at the centimetre/sub-centimetre level.
<o:p></o:p></p>
<p class="MsoPlainText">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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We hope to see you there.<o:p></o:p></p>
<p class="MsoNormal">Yours,<o:p></o:p></p>
<p class="MsoNormal">Marek (Ziebart) and Pascal (Willis)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Marek Ziebart<o:p></o:p></p>
<p class="MsoNormal">Professor of Space Geodesy<o:p></o:p></p>
<p class="MsoNormal">Director, Space Geodesy and Navigation Laboratory <o:p></o:p></p>
<p class="MsoNormal">Vice Dean for Research, Faculty of Engineering Sciences<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">University College London,<o:p></o:p></p>
<p class="MsoNormal">Department of Civil, Environmental and Geomatic Engineering Gower Street, London, WC1E 6BT<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">EMAIL: <a href="mailto:marek@cege.ucl.ac.uk"><span style="color:blue">marek@cege.ucl.ac.uk</span></a><o:p></o:p></p>
<p class="MsoNormal">TEL: +44 (0) 20 7679 1359 (Direct Dial)<o:p></o:p></p>
<p class="MsoNormal">INTERNAL: 31359<o:p></o:p></p>
<p class="MsoNormal">FAX: +44 (0) 20 7679 3042<o:p></o:p></p>
<p class="MsoNormal">SKYPE: marek.ziebart<o:p></o:p></p>
<p class="MsoNormal">WEB: <a href="http://www.cege.ucl.ac.uk/"><span style="color:blue">http://www.cege.ucl.ac.uk/</span></a><o:p></o:p></p>
<p class="MsoNormal">OFFICE: Room 118, 1st floor, Chadwick Building<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">“Every honest researcher I know admits he's just a professional amateur. He's doing whatever he's doing for the first time. That makes him an amateur. He has sense enough to know that he's going
to have a lot of trouble, so that makes him a professional. “<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><i><span style="mso-fareast-language:EN-GB">Charles Franklin Kettering (1876-1958) U. S. Engineer and Inventor.</span></i><span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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