Earth-Halo-Moon Relay Path, EHM Path

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

The total signal path length from Earth through an L3 halo orbit relay satellite to the Moon. This distance directly affects the link budget and is a key constraint in L3 orbit selection. As the orbit's perigee approaches Earth, the Earth-halo segment shortens but the halo-Moon segment lengthens, requiring a trade-off between the two.

Application Value

The 地月Halo中继路径 concept is applied in cislunar space research, providing technical support or analytical methods for lunar exploration missions.

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References

  • Conti and Circi, 2025, Design of halo orbit constellation for lunar global positioning and communication services