说明：  卫星轨道动力学数值计算，包括轨道动力学计算的基本数学模型、轨道计算方法、轨道根数与位置矢量、速度矢量的关系等！
(Satellite orbit dynamics numerical calculation, including the orbital dynamics calculation of the basic mathematical model, orbit calculation, orbit and position vector, velocity vector of the relationship!)