Capture Trajectory Classification

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

In the grid scan method, initial conditions on a Poincaré section are classified into five sets by trajectory behavior: good capture (G, perilune altitude 100–400 km), low orbit (L, <100 km), high orbit (H, >400 km), collision (C), and escape (O). This classification provides a filtered candidate pool for subsequent optimization.

Application Value

The Capture Trajectory Classification plays a significant role in cislunar space mission design, analysis, and control. In orbital design, it can be leveraged for transfer trajectory optimization; in navigation and control, it improves mission execution precision and reliability; in system analysis, it facilitates deeper understanding of complex multi-body dynamical behavior, guiding mission planning and risk assessment.

  • J2-Invariant Orbit
  • Interior Point Optimization
  • N-Body Dynamics
  • Start-End State Constraint

References

  • Sousa-Silva et al. (2018) Fast earth–moon transfers with ballistic capture
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Contributors: ouyangjiahong, Ou Yang Jiahong