Two historical uncorrelated track (UCT) processing approaches have been employed using general perturbations (GP) orbit determination theory.
Special Perturbations Uncorrelated Track Processing
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Two historical uncorrelated track (UCT) processing approaches have been employed using general perturbations (GP) orbit determination theory. The Cuthbert-Morris algorithm clusters UCTs based on plane, drift rate of the right ascension of the ascending node, and period matching. A pattern recognition tool developed by Lockheed Martin finds patterns in the trends of GP UCT element set parameters over time. A new special perturbations (SP) hierarchical agglomerative clustering algorithm and SP track-oriented multiple hypothesis tracking (MHT) algorithm are considered for SP UCT processing. Both SP UCT processing algorithms show improved performance over the GP UCT processing algorithms for a stressing test case.