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Sub-centimeter SLR precision with the SLRF2005/LPOD2005 network / Nikita P. Zelensky (2008) 

Public contenu dans Proceedings of the 16th International Workshop on Laser Ranging / Stanisław Schillak (2009)   Titre : Sub-centimeter SLR precision with the SLRF2005/LPOD2005 network Type de document : Article/Communication Auteurs : Nikita P. Zelensky, Auteur ; Franck G. Lemoine, Auteur ; David D. Rowlands, Auteur ; Scott B. Luthcke, Auteur ; Douglas S. Chinn, Auteur ; J.W. Beall, Auteur ; Brian D. Beckley, Auteur ; Steven M. Klosko, Auteur ; Pascal Willis , Auteur ; Vincenza Luceri, Auteur Editeur : Varsovie : Polish Academy of Sciences Année de publication : 2008 Conférence : IWLR 2008, 16th International Laser Ranging Workshop 13/10/2008 17/10/2008 Poznan Pologne OA Proceedings Importance : pp 215 - 222 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale [Termes IGN] précision centimétrique [Termes IGN] télémétrie laser sur satellite Résumé : (auteur) Satellite Laser Ranging (SLR) offers the only unambiguous sub-centimeter range measurement to orbiting satellites. This capability finds many applications in addition to precision orbit determination (POD), which include a unique absolute measure of orbit accuracy, accurate altimeter range calibration, accurate definition of the Earth‘s center of mass, the most accurate definition of the geocentric gravitational coefficient (GM) and scale of a terrestrial reference network. Achieving sub-centimeter precision requires appropriate modeling of the satellite laser retro-reflector array (LRA) coupled in some cases with appropriate modeling of the satellite-dependant station detector characteristics, a highly accurate terrestrial reference frame, and appropriate attention to possible bias modeling of individual stations. We have processed Jason1/2, Lageos1/2, and TOPEX SLR tracking using the latest and most accurate POD models which include a GRACE-based static gravity, time varying gravity, and the highly accurate ILRS update of the rescaled ITRF2005 SLR complement, SLRF2005. SLRF2005 has been further updated, based on recommendations for the rescaling of ITRF2005, producing LPOD2005. Our analysis evaluates individual SLR station performance and systematic signals as observed from all four satellites. Several primary stations are identified as having significant range biases, which if untreated could lead to degradation in current levels of POD accuracy, and possibly degrade the results for other applications of the SLR measurement. Numéro de notice : C2008-031 Affiliation des auteurs : LAREG (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102414

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