Satellite obits that are eccentric and inclined with near-repeating ground tracks can exhibit complex dynamical motions. This class of orbit is typically in resonance with multiple Earth tesseral harmonics. Depending on the selected resonance (i.e. orbits with a 24 h period, 12 h period, etc.), inclination, and eccentricity, the interaction between tesserals produces a variety of motions ranging between responses that are periodic, quasiperiodic, and chaotic.
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