Lunar Gravity Field Model

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A mathematical model representing the Moon's non-uniform gravitational potential through spherical harmonic expansion. The paper uses only low-degree terms in the simple force model, while the precise force model employs GL-series models with high-degree spherical harmonic expansion, additionally accounting for Earth's gravity, solar gravity, and solar radiation pressure perturbations. The lunar gravity field is more irregular than Earth's, significantly affecting orbital accuracy in the near-lunar flight segment.

Application Value

This concept plays an important role in cislunar space mission design and orbital dynamics analysis.

References

  • 刘磊 等 - 2008 - 多约束条件下的地月转移轨道设计
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Contributors: ouyangjiahong, Ou Yang Jiahong