关于人造天体运动轨迹确定的一种方法

Determination of the Moving Path of Man-made Celestial Body

作者在该文中，从万有引力定律出发，根据有心力的特点，再采用切线坐标法很方便地推导出在地球万有引力作用下，人造天体运动的轨道必是圆锥曲线，并指出由发射时初始条件能方便地进一步确定其轨迹的形状。

In this paper,the author,adopting a simple method-tangent coordinates,studies the motion regulatity of man-made celestial body by a simple maths algorithm,reveals that under gravity, the orbit of man-made celestial body must be a cone curve,and then points out that the shape of the orbit can be determined by the initial conditions of its launching.