Abstract Increasing interest in asteroid mining and in-situ resource utilization will lead to an increase in asteroid surface operations. The geophysical properties of asteroids are often unknown and play a significant role in the resulting gravitational fields. Surface operations such as mining may significantly alter the asteroid's structure or, in the case of contact binary asteroids, cause the asteroid to split depending on the rotational condition. The coupled problem of estimating unknown parameters of a splitting contact-binary system and controlling a spacecraft's trajectory in the system's vicinity is investigated. An indirect adaptive control scheme is utilized to simultaneously meet both objectives. The results are compared with the traditional 2-body controller and the improvement enabled by the proposed scheme is demonstrated.

中文翻译：

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围绕分裂接触双星小行星的航天器轨迹跟踪和参数估计

摘要 对小行星采矿和原位资源利用的兴趣日益增加，将导致小行星表面作业的增加。小行星的地球物理特性通常是未知的，并且在由此产生的引力场中起着重要作用。采矿等表面作业可能会显着改变小行星的结构，或者在接触双小行星的情况下，根据旋转条件导致小行星分裂。研究了估计分裂接触二元系统的未知参数和控制系统附近航天器轨迹的耦合问题。间接自适应控制方案被用来同时满足这两个目标。