This monograph concentrates on the modeling of the astrodynamic behavior of geostationary orbit (GEO) debris, and apply that in calculating the relative velocity between GEO debris. A general model was firstly developed describing third-body gravity perturbation to debris''orbit. The model is proved by applying it to the precession of the lunar orbit. It''s then used to tell the motion of GEO debris in both short and long term. Without considering the Moon''s precession around the solar pole, the relative velocity between GEO debris can be calculated. A simulation was done and the value of the relative velocity between GEO debris was given. This is an important coefficient for simulating the GEO debris environment and can serve as an input to break up models.

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BSc in Physics (Nanjing University, 2008), MSc in Astronautics and Space Engineering (Cranfield University, 2010), and MSc in Space Technology (Lulea University of Technology, 2010). Interested research area includes computational modeling and astrodynamics. Case team leader at Voi Plaw Consulting Co., Nanjing (China).