Target selection method for flying over small celestial body from driven balance point track

The invention relates to a target selection method for flying over a small celestial body, in particular to a target selection method for flying over the small celestial body from a driven balance point track and belongs to the technical field of aerospace. The method comprises: firstly, carrying out primary election on flyover targets according to timing constraint and measurement and control communication distance constraint; then, further carrying out screening on targets according to physical properties of small celestial bodies and detector flyover imaging constraint; and lastly, choosing out alternative targets according to speed increment constraint provided by a detector. The method carries out layered screening step by step on targets of a small celestial body star bank according to the mission time and the measurement and control communication distance constraint, the physical properties of small celestial bodies and the detector flyover imaging constraint, and at last estimates the speed increment, provides the alternative targets, can achieve fast choosing, and has the advantages of being little in calculated amount, high in efficiency and the like.