Weak Stability Region, WSR

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A corridor along the Earth-Moon line including the three collinear Lagrange points L1, L2, and L3, where a spacecraft can overcome Earth-Moon gravity without being captured, and requires only tiny thrust to orbit around unstable points.

Application Value

Weak Stability Region, WSR plays an important role in orbital dynamics and attitude control, serving as a critical tool for analyzing spacecraft motion characteristics. Research on this concept enables optimization of orbit transfer schemes and improvement of control system performance.

  • Restricted Three-Body Problem
  • KAM Theorem
  • Hill Clohessy Wiltshire Equations
  • State Transition Function

References

  • 利用拉格朗日点的深空探测技术.
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Contributors: ouyangjiahong, Ou Yang Jiahong