Lunar Gravity Field Irregularity

Author: Tianjiang Shuo

Website: https://cislunarspace.cn

Definition

The degree to which the Moon's gravitational field deviates from a uniform spherical distribution. Mass concentrations (mascons) and other anomalies cause strong perturbations on low-altitude orbits, making single-impulse stabilization of orbits with perilune altitudes below 100 km extremely difficult.

Application Value

This term has significant application value in cislunar space missions。In the orbital design phase, engineers use relevant theories for trajectory optimization；In navigation and orbit determination, it is used to improve measurement accuracy；In attitude control and orbit maintenance tasks, it ensures stable spacecraft operation。In practical applications, parameter optimization and algorithm adaptation can be combined with mission requirements to improve mission success rate and resource utilization efficiency。

  • Virtual Coplanar Takeoff
  • LP100K Model
  • Lunar Fixed Coordinate System

References

  • Trofimov et al. 2020, Transfers from NRHOs to low-perilune orbits
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Contributors: ouyangjiahong, Ou Yang Jiahong