Quasi-Keplerian motion under the generally parameterized post-Newtonian force (Q776772)

The authors derive the analytical solutions for quasi-Keplerian motion under the generally parameterised post-Newtonian force. The solutions are derived in the Brumberg-Damour-Deruelle representation and are formulated in terms of the orbital energy and angular monmentum. Their results can be applied to not only the motion of a test particle but also to the relative motion of a binary system in a broad spectrum of graviational theories.