Tangential Insertion

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A transfer trajectory arrival at the target orbit where the velocity is tangent to the orbit, meaning all velocity components except along-track are zero at the arrival point. In this paper, when the transfer trajectory intersects the DRO tangentially at the x-axis crossing (x_dot and z_dot both zero), insertion cost is minimized. Nontangential arrival requires additional maneuvering to nullify residual components.

Application Value

This concept has practical applications in cislunar space science and engineering. Related research supports the planning, implementation, and operations of cislunar missions, forming an integral part of the knowledge system in this field.

References

  • Parsay和Folta - 2022 - Transfer to distant retrograde orbits via rideshare to sun-earth L1 point
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Contributors: ouyangjiahong, Ou Yang Jiahong