Based on the two-body assumption, two methods are used to investigate the relative motion of satellite formation flying on circular or near-circular orbits.
首先基于二体假设，采用两种方法系统地研究了圆或近圆轨道上卫星编队飞行的相对运动。
2
Due to the near-circular orbits of Earth and Jupiter, as Earth has a faster orbital period than Jupiter, from our point of view we will appear to "overtake" the gas giant.
Circular base of mammoth bones found at Mezin, near Tchernogov, that provided a supporting structure for a Paleolithic hut of a typical mammoth hunting society.