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Questions about orbits utilizing nodal precession so that spacecraft are able to maintain the same local mean solar time at any given point of an orbit. The effect is achieved through choosing inclination and altitudes of the apses.
6
votes
Why does the Sun-synchronous orbital plane rotate?
Sun-synchronous orbits are possible because the Earth is not a perfect sphere. The Earth is best described as an oblate spheroid. This non-spherical shape and the resulting gravity field can be used t …