Orbital Stability Index

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

An index measuring the long-term stability of DRO under multi-body perturbations. Multiple cross-sections through the lunar center, perpendicular to the x-y plane and equally spaced in phase angle, intersect the DRO trajectory; the average of the maximum distances between intersection points on each section quantifies the orbital boundedness and configuration preservation capability.

Application Value

在周期轨道设计中，该指标用于评估轨道的有界性和长期稳定性，指导轨道维持策略的制定。

Related Concepts

• Synodic Resonant Periodic Orbit
• Halo Orbit Amplitude
• Near Rectilinear Halo Orbit
• NRHO Transfer

References

• Zhou et al. 2024 - Design of circumlunar global positioning satellite constellation on DRO in the cislunar space