Abstract :The conception of Non2Keplerian orbit was described and its applications were discussed. Firstly , as a direction the
Keplerian Law was given which in fact as a very creative summarization of the observation results of planets , and it can describe
the kinematical principle of planet motion. Then , the concept of Non2Keplerian orbit is given , which is the inevitable result of ar2
tificial satellite controllability. In succession , the typical problems of non2Keplerian orbit are described , including kinematical
problemof spacecraft in single center gravitation field (viz. two2body problem) and in muilt2center gravitation field(viz. multi2
body problem) . The spiral climbing orbit and suspension orbit are studied as specific case. Finally , the applications of non2Keple2
rian orbit were put forward , including problem of kinetic energy interception , satellite formation and reconfiguration , optimal ma2
neuvering of system integrated configuration.
Key words: Orbital dynamics; Keplerian orbit ; Non2Keplerian orbit