Transfer Cost

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

The total velocity increment required to complete an orbital transfer, equal to the sum of departure and insertion impulses. Transfer cost is the primary metric for selecting parking orbits of cislunar space stations and directly determines propellant requirements. For the same starting DRO, the cost difference between direct and low-energy transfers can exceed 400 m/s.

Application Value

在轨道设计阶段，可usingThis轨道类型构建候选轨道池，为星座部署和任务轨道选择provides参考。在轨运行时，This轨道特性可used for轨道维持策略设计，降低推进剂消耗。在轨道转移规划中，其稳定流形结构可指导低能量转移走廊的搜索。

Related Concepts

• 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）
• 准周期远距离逆行轨道（Quasi-Periodic Distant Retrograde Orbit, QPDRO）

References

• Zhang et al. 2021