Determination of an instantaneous Laplace plane for Mercury's rotation

作者: Sandrine D’Hoedt , Benoît Noyelles , Julien Dufey , Anne Lemaitre

DOI: 10.1016/J.ASR.2009.05.008

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摘要: Abstract Mercury is the target of two space missions: MESSENGER, which carried out its first and second flybys on January 14, 2008 October 6, 2008, ESA/JAXA mission BepiColombo, scheduled to arrive at in 2020. The preparation these missions requires a good knowledge rotation Mercury. This paper presents studies performed by MORE/ROMEO Team BepiColombo mission. In particular, we show here an analytical study Mercury, determination suitable Laplace plane that can be considered as reference inertial for duration Our main results are prediction short-period perturbations should detected longitudinal rotational motion easy method define instantaneous taking into account very small precession Mercury’s orbit. afterward chosen constant plane. An estimation (small) error induced this choice also computed.

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