Firstly,the relative motion between the chaser and the target is described using Tschauner-Hempel equations to describe the relative motion of two spacecraft in an arbitrary elliptic orbits.

• 首先从一般性出发对追踪星与非合作目标之间的椭圆轨道相对运动方程进行分析,给出具有任意初始条件的相对运动方程解析表达式。