The International Lunar Reference System

arXiv:2607.27762 · astro-ph.EP, astro-ph.IM · Submitted 2026-07-30 · Read on arXiv

Agnès Fienga

on behalf of the IAG WG 1.1.3

astro-ph.EP, astro-ph.IM

Submitted: 2026-07-30

Comments: proceedings of the REFAG 2026 to be published in IAG Symposia Series by Springer Nature

Project page: https://ilurs-6e772d.gitlab.io

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Accuracy — 3× in this paper · explained in 1 episode
• International Association of Geodesy — 2× in this paper
• International Astronomical Union — 2× in this paper
• International Earth Rotation and Reference Systems Service — 2× in this paper
• Joint Working Group — 2× in this paper
• Lunar Celestial Reference System — 2× in this paper
• Robustness — 2× in this paper · explained in 5 episodes
• AGN — 1× in this paper · explained in 1 episode
• Actor — 1× in this paper · explained in 3 episodes
• Benchmark — 1× in this paper · explained in 2 episodes
• Center of Mass (CoM) — 1× in this paper · explained in 2 episodes
• Global Navigation Satellite Systems — 1× in this paper
• Lunar Laser Ranging Retro-Reflectors — 1× in this paper
• Variance Component Estimator — 1× in this paper
• Very Long Baseline Interferometry — 1× in this paper

Sources

• Lunar References Systems, Frames and Time-scales in the context of the ESA Programme Moonlight
• Relativistic time scales in the Solar system
• NovaMoon: A Strategic Lunar Reference Station for Positioning, Timing, and Largely Enhanced Science in the Earth-Moon System
• Definition and Realization of the International Lunar Reference Frame

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