Ground track | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-06-23

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Ground_track


00:00:37 1 Aircraft ground tracks
00:01:13 2 Satellite ground tracks
00:01:45 2.1 Direct and retrograde motion
00:03:34 2.2 Effect of orbital period
00:05:53 2.3 Effect of inclination
00:07:59 2.4 Effect of argument of perigee
00:08:47 3 See also
00:09:09 4 References



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SUMMARY
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A ground track or ground trace is the path on the surface of a planet directly below an aircraft or satellite. In the case of a satellite, it is the projection of the satellite's orbit onto the surface of the Earth (or whatever body the satellite is orbiting).
A satellite ground track may be thought of as a path along the Earth's surface which traces the movement of an imaginary line between the satellite and the center of the Earth.  In other words, the ground track is the set of points at which the satellite will pass directly overhead, or cross the zenith, in the frame of reference of a ground observer.