探月卫星轨道的简单计算

本文以地球为参照系，用最简化的模型来估测从地球发射的探月卫星的轨道，详析了入轨速度对轨道性质及飞行时间的影响，由此引出最小能量轨道概念等。卫星进入月球引力范围之后的变轨及其他行为不在本文谈论范围之内。

The simple calculate of the lunar satellite's orbit

In this paper,I compute the orbit of a lunar satellite launched from the earth by using the simplest physics model and the earth as the frame of reference,and amplify how the initial velocity affect the orbit and the time of flying,then educe the least energy orbit concept. The transfer orbital trajectory or other acts of the satellite when it goes into the area of the moon gravitation won＇ t be discussed in this article.