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1 Zentrum für astronomie 2 Observatorio de Valongo 3 SYRTE - Systèmes de Référence Temps Espace 4 CASSIOPEE - Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides 5 Osservatorio astronomico de Torino 6 Astrophysics research institute

Abstract : Gaia-s unprecedented ambitions regarding astrometric accuracy and precision require a level of knowledge of the position and velocity vector of the satellite itself not required in other satellite mission. Thus the usual methods of determining these quantities do not suffice and new approaches must be invoked. One of these is the Ground Based Optical Tracking GBOT campaign.





Author: M. Altmann - A. H. Andrei - U. Bastian - Sebastien Bouquillon - F. Mignard - R. Smart - I. Steele - Paolo Tanga - Francois Taris

Source: https://hal.archives-ouvertes.fr/



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