Report from the IAG JWG 1.1.3 about Lunar reference frames

• Autores: Fienga, A.; Sosnica, K.; Brinkley, K. J.; Defraigne, P.; Garner, T. W.; Gramling, C.; Heinkelmann, R.; Iess, L.; Karbon, M.; Klioner, S.; Mazarico, E.; Merkowitz, S.; Murata, M.; Müller, J.; Paganelli, F.; Pavlov, D.; Ping, J.; Rambaux, N.; Stewart, S.; Swinden, R.; Ventura-Traveset, J.
• Año de publicación: 2025
• Idioma: inglés
• Tipo de recurso: documento de conferencia
• Materia: Ciencias Astronómicas; Lunar reference frames; Lunar geoid; ILRF
• Institución: Universidad Nacional de La Plata

In this presentation, we will provide a comprehensive overview of the activity conducted by the IAG JWG 1.1.3, which is speci cally focused on the de nition of future lunar reference frames. The presentation will address the four primary inquiries that the JWG has been engaged in. Firstly, we will present the properties that should be employed in order to de ne the lunar- xed reference frame (ILRF). Secondly, the current limitations of the lunar physical libration models will be examined. Thirdly, we will discuss how the new lunar reference frame can be tied to ITRF and how GNSS direct observations by a lunar lander can help to increase the accuracy of such a tie. Fourthly, we will address the interconnection between lunar time and lunarxed frame realizations. Finally, we also provide some recommendations for the rst ILRF realization and for the de nition of the lunar geoid.
Facultad de Ciencias Astronómicas y Geofísicas