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The ray tracing analytical solution within the RAMOD framework. The case of a Gaia-like observer

Lattanzi, M. G.; Crosta, M.; Vecchiato, A. +1 more

This paper presents the analytical solution of the inverse ray tracing problem for photons emitted by a star and collected by an observer located in the gravitational field of the Solar System. This solution has been conceived to suit the accuracy achievable by the ESA Gaia satellite (launched on 19 December 2013) consistently with the measurement…