perturbed gravity assist model

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

An approximate gravity assist model based on pseudostate theory that decomposes the three-body problem into analytically computable conic arc segments via the pseudostate sphere, avoiding direct numerical integration. It improves near-lunar trajectory accuracy by incorporating perturbation corrections such as lunar non-spherical perturbation. It achieves a better trade-off between computational efficiency and accuracy compared to traditional Lambert patching.

Application Value

This concept is fundamental to cislunar orbital mechanics and mission analysis, providing essential theoretical support for trajectory design and operational planning.

  • Retrograde Motion
  • Absolute Phase Bias
  • Relative Attitude Quaternion
  • Radial-Tangential-Normal Coordinate System, RTN

References

  • Ding B. et al. - 2023 - 载人月球探测任务转移轨道及月面着陆区评估分析
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Contributors: ouyangjiahong, Ou Yang Jiahong