This paper discusses the establishment and relevant accomplishments of a simple facility used for students learning aids based on the Keplerian Orbit parameters. Three major areas in Orbital Mechanics are discussed in this paper, Orbit of a satel

卫星定轨，研究卫星间的距离以及相对的角度，有需要的同学可以看看啊，很有帮助-Satellite orbit to study the distance between the satellite and the relative point of view, students need to take a look, ah, very helpful

第四届中国卫星导航年会论文全文，有关LDPC编码在卫星导航中的应用。现在在CNKI等中文数据库，只能查看摘要，无全文！-Fourth annual meeting of China' s satellite navigation papers related LDPC coding applications in satellite navigation. Now CNKI databases such as Chinese, can only view the abstract, wit