2010～2017年激光测月研究进展

简要介绍近几年激光测月(lunar laser ranging, LLR)的研究进展,包括设施建设、月球轨道、多源数据联合探测月球等。激光测月技术使我们能够全方位地了解地月系统,并且其用途广泛;下一代单棱镜反射器会将激光测月的精度提高1～2个量级;云南天文台站实现了中国激光测月零的突破,新台站的加入将帮助我们得到更准确的月球轨道;探测月球技术手段的增加、多种数据联合分析将使我们更加全面地认识月球。

Progress of Lunar Laser Ranging from 2010 to 2017

In this paper, the recent progress of lunar laser ranging (LLR) is introduced briefly, including the establishment of facility, lunar orbit, and lunar exploration with multiple data sources. The observable of LLR is the round-trip travel time of laser pulses between stations on the earth and passive reflectors on the moon. LLR can help us fully understand the earth-moon system and has many applications. The next generation of retro-reflector will improve the accuracy of LLR measurements and improve the science by one to two orders of magnitude. Yunnan observatory of CAS has successfully received laser photons returned recently, becoming the first laser station with the capacity of lunar laser ranging in China. The accuracy of the lunar orbit can benefit from the increasing number of LLR stations. The technology of lunar exploration is increasing. The combination of multiple data will result in a better and more comprehensive understanding of the moon.