[2607.27762] The International Lunar Reference System

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Astrophysics > Earth and Planetary Astrophysics

arXiv:2607.27762 (astro-ph)

[Submitted on 30 Jul 2026]

Title:The International Lunar Reference System

Authors:Agnès Fienga (on behalf of the IAG WG 1.1.3)<br>View a PDF of the paper titled The International Lunar Reference System, by Agn\`es Fienga (on behalf of the IAG WG 1.1.3)

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Abstract:As the exploration of the Moon accelerates in the coming years, there is already an urgent need to standardise the Position, Navigation and Timing of spacecraft, and consequently for the definition of the lunar reference system and frame. This document gathers the most recent recommendations of the the International Association of Geodesy (IAG) / International Astronomical Union (IAU) Joint Working Group (WG) 1.1.3 "Lunar Reference frames" on the topic. Despite the challenges for producing a Lunar Reference System and Frame due to the limited number of control points and a single data type, the WG proposes applying an approach developed for Global Navigation Satellite Systems (GNSS). This supports an accurate and reliable reference system, consistent with International Earth Rotation and Reference Systems Service (IERS) standards and, based on redundant sources, ensures resilience for the lunar Position, Navigation and Timing (PNT) framework. The first realization of the International Lunar Reference Frame 2026 (ILuRF2026), ILuRF2026, is delivered on the temporay website this https URL and on the future this http URL together with associated software.

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

Subjects:

Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM)

Cite as:<br>arXiv:2607.27762 [astro-ph.EP]

(or<br>arXiv:2607.27762v1 [astro-ph.EP] for this version)

https://doi.org/10.48550/arXiv.2607.27762

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arXiv-issued DOI via DataCite (pending registration)

Submission history<br>From: Agnes Fienga Dr. [view email]<br>[v1]<br>Thu, 30 Jul 2026 07:01:42 UTC (524 KB)

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