Design and Analyze Optimum Two-Impulse Transfer Trajectory for Exploring Asteroids
Design and Analyze Optimum Two-Impulse Transfer Trajectory for Exploring Asteroids
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发表时间：
2005
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通讯作者：
Cui Pingyuan
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作者：
Cui Pingyuan
小行星探测是新世纪深空探测的新热点，也是未来世界航天发展的新方向。转移轨道设计和探测目标可达性分析是小行星探测的重要技术之一。本文采用任意两个倾斜非共心椭圆轨道之间的最优双冲量变轨方法，设计并分析了与伊瓦尔小行星交会的转移轨道。给出了探测伊瓦尔小行星的全局最优双脉冲交会轨道的轨道参数。利用该方法对近地小行星的可达性进行了排序和分析。给出了40颗可达性较好的近地小行星转移轨道的设计参数。这些结果对小行星探测任务的目标选择和发射时机预测具有重要的参考价值。
Asteroid exploration has been a new hot spot of deep space explorations in new century and a new orientation of space flight development of the world in the future. The design of transfer trajectory and the accessibility analysis of exploring targets are the one of significant technologies for the asteroid exploration. In this paper, the transfer trajectory for rendezvous with Ivar Asteroid was designed and analyzed by using the method of optimum two-impulse orbital transfers between any two inclined noncoapsidal elliptical orbits. We presented the orbital parameters of the global optimum two-impulse rendezvous trajectory for exploring Ivar Asteroid. Then the ranking and analysis about accessibility of Near-Earth Asteroids was presented by using this method. We provided the design parameters of transfer trajectory of 40 Near Earth Asteroids that have better accessibility. These results are of high value for selecting target and predicting the launch opportunity of exploring asteroid missions.