Optimal Continuation Strategy, OCS

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

A stationkeeping maneuver algorithm for libration point orbits that does not require a reference trajectory. Using differential correction and nonlinear optimization, OCS applies position or velocity constraints at successive x-z plane crossings for 1-2 revolutions downstream. ARTEMIS mission demonstrated annual stationkeeping costs of approximately 5-7 m/s.

Application Value

Optimal Continuation Strategy, OCS plays a critical role in trajectory optimization and multi-body dynamics analysis for solving complex trajectory design problems.

References

  • Folta et al., 2014, Acta Astronautica
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Contributors: ouyangjiahong, Ou Yang Jiahong