Quasi-Periodic Orbit, QPO

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

An orbit with multiple incommensurable frequencies that serves as a nominal trajectory, replacing the geometric libration point in the quasi-periodic model.

Application Value

Quasi-Periodic Orbit, QPO is a key element in cislunar space orbit design, with significant value for planning Earth-Moon transfer trajectories and designing formation flying scenarios. It is widely applied in lunar exploration missions and small body explorations.

Related Concepts

• Earth-Moon L1 Halo Orbit
• Ballistic Lunar Transfer
• Weak Stability Region
• Triangular Libration Points

References

• Gómez 等 - 2001.