人造地球卫星的使用开拓了关于确定地球形状以及为编制地图而测定地球表面各测区位置的新的科学领域——卫星测地学。 我们现在已知的地球形状只是大略的,对此,可以用人造地球卫星以几何学方法和动力学方法加以修正。几何学方法是利用带有已知座标的人造地球卫星,确定卫星相对 The use of man-made earth satellites has pioneered the new science of geodesy, which determines the shape of the Earth and determines the location of each land on the Earth’s surface for compilation of maps. The shape of the earth we now know is only rough, and for that we can use artificial earth satellites to modify them geometrically and dynamically. The geometric method is to use artificial Earth satellites with known coordinates to determine the relative satellites