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Portable Network Graphic  |  1996-04-23  |  60KB  |  540x449  |  8-bit (196 colors)
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OCR: SATELLITE ORBITS SPACE TECHNOLOGY satellites use polar orbits. Most satellites orbit at Satellite a constant distance from the Earth but others signals come close to the Earth for part of the orbit The (the closest point is called the perigee) before Earth swinging much farther away (the farthest point is called the apogee). Russian communications satellites serving regions far from the equator often use this type of orbit. A satellite in polar orbit follows a path that takes it almost over the North and South poles as the IN TOUCH Earth turns from east to west below. This means Three communications that, in time, the satellite can observe almost the satellites 36,000 km whole of the Earth's surface. With an exact choice (22,400 miles) above the of orbit, the satellite will pass over the s ...