Orateur
Description
Lunar rotation can be measured with high precision using lunar laser ranging observations collected over the past five decades. The long time span of these data, combined with centimeter-level accuracy, enables the identification and characterization of geophysical mechanisms affecting the Moon's rotation such as tidal contribution and signatures of interior structure. These small effects are extracted using numerical dynamical models fitted to the observations such as the Intégration Numérique Planétaire de l’Observatoire de Paris (INPOP), lunar ephemerides, and further constrained by geophysical modeling. Here, we describe how such dynamical analyiss provide insights into the moon's interior structure. In addition, upcoming ESA space missions motivate studies to improve lunar coordinate systems, which require development of more advanced rotational models.