To consider the safety, the conditions for the targeter to locate at the center of flyaround orbit and its design under given chaser shape and distance were presented. 进一步考虑到安全问题，给出了使目标器位于绕飞轨迹中心的条件，同时还进行了给定追踪器形状和距离的绕飞轨迹设计。
The results show that the design method which unifies the stereographic projection and the spherical triangle analytic geometry is one kind of both simple and the quick methods. 研究表明，采用极射赤平投影和球面三角形解析几何相结合的设计计算方法，是一种既简便又快捷的定向钻进轨迹设计方法。
