Obliquity of Lunar Orbit to Equatorial Plane
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
The angle between the lunar orbital plane (ecliptic of the Moon's orbit) and Earth's equatorial plane, varying between 18.5 and 28.5 degrees. Seasonal variation in this angle changes the libration point satellite's height relative to the equatorial plane, affecting the elevation FOV demand. At maximum obliquity (28.5 degrees), the elevation FOV demand reaches 10.5 degrees.
Application Value
In orbital design, analysis, and control, dynamics models are used to predict spacecraft trajectories, with equations of motion solved numerically or analytically. This concept underpins critical mission capabilities including orbital maneuver design, orbit improvement, and formation flying.
Related Concepts
- Orbit Improvement
- Cluster Aggregation
- Pseudospectral Method
References
- 张靖鹏 等 - 2025 - 地月平动点高轨观测系统设计及效能分析