This paper presents the strategy of Mapping Satellite-1 orbit maintenance based on photographic mission

for the status of the considerable impact of orbit maintenance upon photographic mission.This paper analyzes the orbit characteristics and the impact of orbit maintenance upon photographic mission

and presents one method of getting the photographic mission twice by overlap characteristics of the adjacent tracks.An example application is given

and the result confirms the feasibility of this method.In addition

this paper improves the strategy of orbit maintenance by analyzing photographic mission.