In this paper novel trajectories that are particularly suitable for space-borne observation missions are introduced. Based on the framework of the spatial circular restricted three-body problem with the Sun and the Earth as the primaries and a special selection of a coordinate system, a family of trajectories with considerable displacements above the ecliptic plane is found. Stability analysis of these trajectories is carried out using practical stability theory. The normal component of motion results in significantly reduced noise from the interplanetary (zodiacal) dust and a concomitant reduction in the necessary size of the optical collecting area. The reduced size of the mirrors allows a considerable reduction in payload mass and manufacturing costs. The quest for optimal trajectories is performed using genetic algorithms. First, types of trajectories are characterized using a genetic search. Utilizing the results and insight obtained from the characterization process, optimal trajectories are designed. The first optimal trajectory requires low launch energy and yields a maximum decrease of 67% in the zodiacal cloud brightness. The second optimal trajectory requires higher launch energy, but it renders a dramatic 97% maximum noise decrease.

中文翻译：

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太空观测站的最佳黄道外轨迹

在本文中，介绍了特别适合于太空观测任务的新颖轨迹。基于以太阳和地球为主要元素的空间圆形受限三体问题的框架，以及对坐标系的特殊选择，发现了一系列在黄道面上具有较大位移的轨迹。使用实用的稳定性理论对这些轨迹进行稳定性分析。运动的正常分量导致星际（黄道）尘埃产生的噪声大大减少，并且光学收集区域的必要尺寸随之减小。镜子尺寸的减小使得有效载荷质量和制造成本大大降低。使用遗传算法执行最佳轨迹的搜索。第一，使用遗传搜索来表征各种类型的轨迹。利用从表征过程获得的结果和见识，可以设计最佳轨迹。第一条最佳轨迹需要较低的发射能量，并且使黄道云的亮度最大降低67％。第二个最佳轨迹需要更高的发射能量，但是最大噪声降低却达到了惊人的97％。