A Modified Weighting Scheme for the Automatic Tasker of Space Surveillance Network

The increasing number of space objects rapidly consumes the limited resources of space surveillance system. Improving the observation efficiency of sensors can alleviate the strain of the Space Surveillance Network (SSN). In this paper, we provide a modified weighting scheme for observation scheduling of automatic tasker of SSN. We analyze the influence of observation geometry, observation time and observation distribution in scheduling time span on orbit determination accuracy based on the covariance of relative orbit uncertainty in satellite orbit determination, and then provide a weighting scheme of the SSN automated tasker for SSN to improve the observation efficiency. Finally, the feasibility of this weighting scheme under limited resources is simulated and compared with the reported ones.