轨道力学基本子程序,包括Eular数值积分器、JPL行星精密历表、RKF78阶数值积分器-Orbital mechanics basic routines, including Eular numerical integrator, JPL planetary ephemeris precision, RKF78 order numerical integrator ...

计算太阳系行星/月球及部分小行星在惯性系下得相对位置-Calculation of the solar system planets/Moon and some asteroids relative position in the inertial system was under