Classification of Cislunar Trajectories
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
A methodology that classifies cislunar transfer trajectories into direct and low-energy types based on Jacobi energy and time of flight. Direct transfers have Jacobi energy far below C₁ with 2–6 day flight times; low-energy transfers have Jacobi energy just below C₁ and above C₂, where the neck region barely opens, requiring tens of days.
Application Value
在设计地月转移方案时，利用该轨道特性可降低任务总速度增量需求。该矩阵在可观测性分析和滤波器设计中起关键作用。
Related Concepts
- Hill Sphere Radius
- Pseudospectral Convex Optimization
- Poincaré Map Representation
- Minimum Norm Targeting
References
- Liang et al. 2016