Date: Mon, 10 May 2004 10:30:14 +0200 From: Jean-Jacques Valette To: eleonora Yagudina Cc: gilles Tavernier , laurent Soudarin , martine Feissel-Vernier , jean-pierre.granier@cnes.fr Subject: TOPEX informations Dear Eleonora, Hope you have a nice trip back to Saint Petersburg. As discussed in Paris at the IDS meeting here are some complementary information about the TOPEX satellite and its attitude. -------------- / TOPEX info / -------------- In attached file, a summary of the satellite physical parameter characteristics. I'm going to send to you by mail a copy of a CNES document (in french as I told you) that describes the attitude. The Reference is "C. Valorge. La loi d'attitude de Topex. Logiciel d'orbitographie ZOOM. TE/IS/MS/MO/088. CNES, 20/02/1992." You will also find some interesting publications in the following Internet links : Bruce Shapiro, Ram Bhat, and Ray Frauenholz, "Using Anomalous Along-Track Forces to Control the TOPEX/Poseidon Ground Track," Paper AAS-94-165, AAS/AIAA Spaceflight Mechanics Meeting, Cocoa Beach, Florida, Feb. 1994. http://www.bruce-shapiro.com/publications.html Frauenholz R. B., T.W. Hamilton, B. E. Shapiro and R. S. Bhat. The role of anomalous satellite-fixed accelerations in TOPEX/POSEIDON orbit maintenance. AAS/GSFC International Symposium on Space Flight Dynamics, April 1993, AAS 93-570. http://www.bruce-shapiro.com/pubs/1991.AIAA.Durango.pdf Jean-Jacques ------------------------------------------------------------------------------ Jean-Jacques VALETTE (Jean-Jacques.Valette@cls.fr) COLLECTE LOCALISATION SATELLITES 8-10 Rue Hermès Parc Technologique du Canal 31526 Ramonville-Saint-Agne Cedex FRANCE Tel (+33) 05.61.39.47.62 Fax (+33) 05.61.39.48.06 http://www.cls.fr -------------------------------------------------------------------------------