The location on a Halo orbit where the spacecraft transitions from the transfer trajectory onto the periodic orbit. The phase angle of the injection point determines the required velocity increment. For zero-cost transfers, the injection impulse is zero; for perturbed transfers, small impulses are typically needed (0-8 m/s in this paper). The paper divides the Halo orbit into 360 equally-spaced nodes, each a potential injection point

Author: Tianjiang Shuo
Website: https://cislunarspace.cn

Definition

This concept has important application value in cislunar space research and mission design.