小行星采样返回任务的选址方法进展与启发

Advances in Site Selection Methods of Asteroid Sample Return Missions

摘要:

针对小行星采样返回任务，回顾不同小行星采样选址任务中的选址方法，阐述日本的隼鸟二号和美国的奥西里斯号采样返回任务中从初选采样区中选出最终采样区L08-E1和夜莺区的流程、采样选址涉及的工程和科学价值因素的分析方法与采样选址结果，并介绍了其他小行星附着任务的选址过程；对不同小行星采样返回任务的选址方法进行了对比分析与归纳，阐释了隼鸟二号和奥西里斯号采样选址所用到的载荷、选址方法以及得到的选址结果，并对选址方法进行对比分析，可作为今后小行星采样返回任务中采样选址方法的参考。结合我国小行星探测任务规划，展望了今后小行星采样返回任务中的选址方案。

Abstract:

This paper reviews the site selection methods on the issues of the asteroid sample return missions， and expounds the process of selecting the final sampling area L08-E1 and Nightingale area from the primary candidate sampling areas in Hayabusa2 of Japan and the OSIRIS-REx sample return missions of the US. The analysis method of engineering and scientific value factors involved in sampling site selection and the selection process of other asteroid attachment missions are introduced. Thebasic methods of each site selection factor for the previous steroid sample return missions is expounded， the comparative relationship between the sampling site selection of Hayabusa2 and OSIRIS-REx is discussed from the perspective of probe load， site selection process， methods and results， the reference significance of the existing asteroid sampling site selection method for China’s asteroid sample return site mission is proposed combining the asteroid exploration mission planning， and the future work to the site selection scheme of the asteroid sample return missions is forecasted.