RESONANCE EFFECTS FOR SATELLITES WITH NOMINALLY CONSTANT GROUND TRACK.
ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)
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Since a constant-ground-track satellite would continually pass over the same regions of the Earth, such orbits are in resonance with the longitude dependent part of the Earths gravitational field. The situation is similar, but not completely analogous, to the case of synchronous satellites. For beta revolutions per day, the ground track will oscillate in longitude with a maximum amplitude of or -180beta degrees, the periods of oscillation being usually of the order of a few years for beta 2, 3, and 4. These effects depend strongly on the inclination of the orbit. Author
- Unmanned Spacecraft