Perigee Geocentric Distance
Author: Tianjiang Shuo
Website: https://cislunarspace.cn
Definition
The distance from the perigee of a spacecraft orbit to the Earth's center. In DRO insertion design, the perigee geocentric distance, phase angle, and velocity impulse ratio jointly describe the shooting variables of the departure segment, determining the shape and energy of the initial orbit.
Application Value
The Perigee Geocentric Distance 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.
Related Concepts
- Football Orbit
- Orbit Chain
- Prograde Polar Orbit
- 偏心倾角矢量分离（Eccentricity/Inclination Vector Separation）
References
- 张晨, 2024, 北京航空航天大学学报