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卫星轨道按高度可分为低轨道、中高轨道、地球同步轨道等,一般把距地面数百千米到1000多千米的轨道称为低轨道。低轨道卫星具有信号传输时延短等优点,因此许多通信卫星采用低轨道。中高轨道的高度约为2000千米到3万千米。
Satellite orbit by height can be divided into low orbit, high orbit, geosynchronous orbit, etc., generally from the ground hundreds of kilometers to 1000 kilometers of track known as the low orbit. Low-orbit satellites have the advantages of short transmission delay and many other low-orbit satellites. The height of the high orbit is about 2000 km to 30,000 km.