LGA+WSB Transfer

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A low-energy transfer combining Lunar Gravity Assist (LGA) with Weak Stability Boundary (WSB). The spacecraft first flybys the Moon via a lunar transfer orbit, raising the apogee to the WSB region, then uses solar gravity to enter the target orbit. Compared to direct WSB transfer, it reduces the launch delta-v by 60 to 70 m/s.

Application Value

LGA+WSB Transfer is an important orbit type in cislunar trajectory design, widely applied in mission planning.

Related Concepts

• Initial Periodic Orbit
• Low-Thrust Transfer
• Radial Amplitude
• z-direction Motion Amplitude

References

• 张晨和张皓 - 2022 - 基于月球借力的低能DRO入轨策略