Atmospheric Drag Perturbation
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
The orbital perturbation force caused by atmospheric drag on a spacecraft in near-Earth orbit. Although most of the Earth-Moon transfer orbit lies outside the atmosphere, the near-Earth segment near the insertion point is still affected. The paper employs an exponential atmosphere model in the precise force model to compute this perturbation, assuming atmospheric density decays exponentially with altitude. Atmospheric drag causes gradual semi-major axis reduction, cumulatively affecting the initial flight state in the near-Earth segment.
Application Value
大气阻力摄动make近地orbit半长轴缓slow减小, In 地月transferorbit of 入轨点nearby仍有累积affect. In 精确orbitpredict中need考虑这一摄动因素.
Related Concepts
- Libration Point Orbit
- Invariant Manifold
- Impulsive Maneuver
- Halo Orbit
References
- 刘磊 等 - 2008 - 多约束条件下的地月转移轨道设计
- 肖峰 - 1989 - 球面天文学与天体力学基础