Geostationary co-location can effectively solve the window resource problem caused by the rapid growth of geostationary satellites. The co-located satellites need an efficient separation method to provide safe co-location, maintaining a minimum separation distance and avoiding mutual occultation. This paper proposes a co-location strategy, combined longitude and eccentricity and inclination vector separation strategy, for three geostationary satellites. This strategy can be easily adapted for more co-located satellites. In addition, the station keeping strategy for such constellation is investigated, based upon the assumption that the co-located satellites are nearly equally perturbated, valid if the area-to-mass ratio of co-located satellites is equal. The simulation shows that minimum separation distance can be more than 10 Km.
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