High-orbit satellites, which orbit at an altitude of approximately 35,800 km, are also called synchronous satellites because their speed of travel is synchronous with the speed of the earth's rotation. Because these satellites can maintain a fixed position over a specific region of the earth, they are well suited to communication and television applications.
高度在三萬五千八百公里左右的高軌道衛星，由於它運行的速度與地球同步，又叫同步衛星，它可以一直對準地球某一區域，適合通訊和直播電視。