Solid part of orbit shows where the satellite is sunlit, and the dashed part where it is in the Earth's shadow and invisible.
轨道的实线部分显示卫星处于太阳光照之中，而虚线部分则表示卫星处在地球的阴影里，所以可以观测到。
Solid part of orbit shows where the satellite is sunlit, and the dashed part where it is in the Earth's shadow and invisible.
轨道的实线部分显示卫星处于太阳光照之中，而虚线部分则表示卫星处在地球的阴影里，所以可以观测到。
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