Equivalent Libration Point
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
In the SBCM model with solar gravitational perturbation, the gravitational equivalent equilibrium points defined according to the geometry of instantaneous Hill's boundary, where the LL1 point is the critical point connecting the gravitational fields of Earth and Moon, and the LL2 point is the critical point connecting interior and forbidden regions.
Application Value
This concept is applicable in cislunar space mission design, orbit optimization, and trajectory planning for spacecraft transfers and maneuver strategies.
Related Concepts
References
- Xu 等 - 2013 - On the construction of low-energy cislunar and trans-lunar transfers based on the libration points