Image:Tilted orbit half speed 256x256.gif
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Tilted_orbit_half_speed_256x256.gif (256 × 256 pixels, file size: 127 KB, MIME type: image/gif)
Description:
Animation 2 shows the groundtracks of a formation of four satellites. The four satellites are in the same orbit, which is tilted with respect to the plane of the equator. The period of the orbit is two Earth days.
This animation also serves as illustration for the following thought experiment: objects that are kept in contact with the surface of a perfectly spherical celestial body by gravity, but that otherwise can move around without any friction over the surface. Independent of the period of the objects' trajectories, if the objects have a velocity they will move along a great circle with respect to the inertial frame of reference. If, as in this case, the perfect sphere underneath rotates with respect to the inertial frame of reference, the trajectories as seen from the sphere have an apperent deviation from motion along a great circle.
Smaller (256x128 pixels) version of this animation Image:Tilted_orbit_half_speed_256x128.gif
Created: Uploaded to wikipedia on 24 February 2007
Author: Cleonis
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 10:39, 24 February 2007 | 256×256 (127 KB) | Cleonis (Talk | contribs) | ('''Description:'''<br/> This animation shows the ground tracks of a constellation of 4 satellites that orbits the earth at a constant altitude, taking two sidereal days to circumnavigate the earth. All four satellite orbits in the same plane. In this anim) |
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