Definition: | a change of longitude, measured in the frame of reference defined by the primary body and the stars, of a characteristic point in a satellite orbit, such as the ascending node
NOTE 1 – Precession of the orbit of a satellite is caused by a perturbation of its orbital motion, due for instance to non-uniformities in the distribution of mass in the primary body.
NOTE 2 – Precession of the orbit of a satellite should not be confused with precession of a rotating body.
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