Geocentric Rotating Frame

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A rotating reference frame with Earth's center as origin, the Earth-Moon line as x-axis, and the Moon's orbital angular momentum direction as z-axis. Unlike the Earth-Moon barycentric rotating frame, its origin is fixed at Earth's center, enabling direct analysis of control variables versus transfer time for two-impulse trans-lunar trajectories.

Application Value

在进行轨道转移设计时，This概念有助于评估转移代价和飞行时间，为任务方案比选provides定量依据。结合全局搜索算法，可找到多族解和帕累托前沿，指导轨道设计决策。

Related Concepts

• 地心天体参考框架（Geocentric Celestial Reference Frame）
• 运行轨道库（Operational Orbit Library）
• 月球自由返回轨道（Lunar Free-Return Orbit, LFO）
• 临界轨道（Critical Orbit）

References

• 彭坤 等 - 2018 - 三体模型下二维平面地月转移轨道设计与特性分析