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astro-ph.IM2025
Trade-off Analysis for Lunar Augmented Navigation Service (LANS) Constellation Design
Keidai Iiyama, Grace Gao
The establishment of a sustainable human presence on the Moon demands robust positioning, navigation, and timing (PNT) services capable of supporting both surface and orbital opera…
astro-ph.IM2025
Ephemeris and Almanac Design for Lunar Navigation Satellites
Keidai Iiyama, Grace Gao
This paper presents almanac and ephemeris message representation for lunar navigation satellites supporting the Lunar Augmented Navigation System (LANS). The proposed method combin…