Experiments on Space-Ground Cooperative Monitoring and Precise Orbit Determination of Near-Earth Asteroids

Abstract

Based on the Space Debris Experiment Telescope of the National Astronomical Observatories of the Chinese Academy of Sciences，together with the Yangwang-1 and Jilin-1 satellites，a space-based and ground-based collaborative monitoring experiment for near-Earth asteroids was designed and carried out. By using image processing and orbit determination methods，target detection and astronomical positioning of observation images were realized，and the orbit of near-Earth asteroids was precisely determined. Based on the analysis，the existing equipment can realize space-ground collaborative monitoring and orbit cataloging of near-Earth asteroids，and provide orbital data support for the study and estimating of impact risk of near-Earth asteroids.

Keywords

near-Earth asteroids / space-based and ground-based collaborative monitoring / precise orbit determination / data fusion