Abstract: Optical methods are widely used in spacebased space debris detection, but they are vulnerable to stray light and other factors The factors which affect spacebased optical space debris detection are analyzed from the two aspects of detectors and debris based on the experimental data The factors affecting the detection effect include stray light such as sunlight, moonlight, earthatmosphere light and airglow, as well as radiation in South Atlantic Anomaly region The factors affecting the visibility of debris include earth occlusion, earth shadow and reflected sunlight At the same time, the characteristic quantities involved in the above factors and the calculation methods to avoid the effects are put forward The simulation results of a spacebased detection equipment show that the above effects may occur in both normal rendezvous and attitude maneuver modes, so that they should be fully considered in the experiment design Finally, a spacebased space debris detection mission is planned The article has certain guiding significance for the experiment design of spacebased optical detection.

Key words: spacebased, space debris, optical detection, stray light, SAA, earth shadow, experiment design