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In this communication, we focus on the possibility to test General Relativity(GR) with radioscience experiments. We present simulations of observablesperformed in alternative theories of gravity using a software that simulatesRange/Doppler signals directly from the space time metric. This software allowsone to get the order of magnitude and the signature of the modificationsinduced by an alternative theory of gravity on radioscience signals. Asexamples, we present some simulations for the Cassini mission inPost-Einsteinian gravity (PEG) and with Standard Model Extension (SME).

Simulations of Solar System observations in alternative theories of gravity