MG14 - Talk detail |
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Participant |
Imperi, Luigi | |||||||
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Institution |
Sapienza University of Rome - via Eudossiana 18 - Rome - Italy - Italy | |||||||
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Session |
PT5 |
Accepted |
Yes |
Order |
7 |
Time |
16:30 | 20' |
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Talk |
Oral abstract |
Title |
On the determination of post-Newtonian parameters with BepiColombo radio science experiment | |||||
| Coauthors | Luigi, Imperi; Giulia, Schettino; Luciano, Iess | |||||||
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Abstract |
The ESA-JAXA BepiColombo mission will be launched in 2017 with arrival at Mercury in 2024. The study of the innermost planet of the solar system will be carried out by two separate spacecraft: the Mercury Magnetosphere Orbiter (MMO, provided by JAXA) and the Mercury Planetary Orbiter (MPO, provided by ESA). The Mercury Orbiter Radio science Experiment (MORE) is one of the experiments onboard the MPO. Thanks to the use of a highly stable multi-frequency radio link in X and Ka band, enabled by state of art instrumentation, precise radio observables (both Doppler and range) will be collected and used in order to reconstruct the Mercury-centric orbit of the spacecraft and the orbit of Mercury around the Sun with an unprecedent accuracy. Since Mercury is affected more than any other planet by solar gravity, the study of both the evolution of its orbit and the propagation of radio waves will allow to perform a very precise test of gravitational theories, mainly by constraining the values of several post-Newtonian (PN) parameters. In this work we present the results of numerical simulations of the MORE relativity experiment, carried out in an up-to-date, realistic scenario. In particular, we discuss the results on the achievable accuracies for each PN parameter, showing how MORE can improve over current estimates. |
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