Time-Optimal Transfer

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

An orbit optimization problem with minimum transfer time as the objective function. In the low-thrust scenario, the engine throttle parameter is always 1 (full thrust), and the thrust direction is determined by Pontryagin's minimum principle. Compared to fuel-optimal transfer, time-optimal transfer consumes more propellant but achieves shorter flight duration.

Application Value

Time-Optimal Transfer plays an important role in orbit maneuver design, analysis, and transfer planning for cislunar missions.

Related Concepts

• Deflection Angle
• Optimal Sliding Mode Control, OSMC
• Summation Combination of Dual One-Way Ranging
• Time-Optimal Transfer

References

• Du et al. 2024
• Ul Haq 等 - 2026