Abstract A linear approximation based fast prediction algorithm for the Earth–Moon transfer trajectory is proposed. Compared with the multi-conic technique, the algorithm dramatically improves the accuracy of the trajectory prediction results. Based on this prediction algorithm and the pseudostate theory, a preliminary design algorithm of the free-return lunar flyby trajectories between the Earth and the Moon is developed. Without numerical differential correction, an accurate solution can be obtained within a little computational time. A large number of numerical examples are carried out to examine the reliability and efficiency of this design algorithm. The results indicate that this design algorithm has a good balance between the accuracy and efficiency. It is valuable for the large-scale computational applications, such as the lunar exploration mission analysis.
Highlights A linear approximation based fast prediction algorithm is proposed. A fast free-return lunar flyby trajectory design method is developed. The design method is suitable for large-scale computational mission analysis.
Accurate and fast design algorithm for free-return lunar flyby trajectories
Acta Astronautica ; 102 ; 14-26
2014-05-07
13 pages
Article (Journal)
Electronic Resource
English
Accurate and fast design algorithm for free-return lunar flyby trajectories
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