简单二体引力模型用于空间目标轨道面交线确定的效果分析

在空间目标碰撞预警分析中，准确地计算出空间目标的轨道面交线是进行地心距筛选、时间差筛选的前提，目前较多使用的快速确定轨道面交线的方法为简单二体引力模型。深入分析该模型，比较了其计算的空间目标轨道面交线与STK计算结果的差异，指出了简单二体引力模型在计算空间目标轨道面交线时的局限性，认为轨道摄动是影响轨道面交线计算准确性的主要原因，应该采用更能反映空间目标实际运动规律的改进的二体引力模型的方法。

Analysis of the Effect of Using Simple Two-Body Gravitation Model for Determination of Orbit Intersection Line

It's of critical importance to calculate the orbit intersecting line of space objects precisely in collision detection analysis for space objects. Simple two-body gravitation model is one of them. This paper analyzes in depth the simple two-body gravitation model, points out the limitation of this model by comparing its results with those of STK, and gives the main reasons for the limitation of this model, one of which is that it does not consider the perturbation of space objects. It is recommended that modified two-body model method be considered in the future.