Analysis of Artificial Spacecraft Detecting Rate via Satellite-based Observations

With the increasing the number of spacecrafts in space, collision probabilities of spacecrafts are correspondingly growing.In order to ensure the safety of both our satellites and others satellites and reduce interference with others satellites, it is necessary to remotely sense information of orbiting spacecrafts, including the orbit elements and physical structures.In addition to the ground-based techniques for remotely sensing of spacecrafts, satellite-based detecting of spacecrafts is a useful complementary way for sensing of spacecrafts. Based on spacecraft databank at hand, the detecting rate is presented under the assumption that the observing instruments are mounted on a low Earth orbiting satellite.