At 11:22 on December 20th, with the successful launch of the Long March No. 4B carrier rocket of the Taiyuan Satellite Launch Center, the "Tianqin 1" technology test satellite was sent into space. The normal entry of "Tianqin 1" means that the Tianqin space gravitational wave detection program has officially entered the "space test" phase.
The "Tianqin Project" was proposed by Luo Jun, an academician of the Chinese Academy of Sciences at an international conference of Huazhong University of Science and Technology in March 2014. Focusing on China's space gravitational wave detection, Luo Jun began to carry out basic research layout in the cave laboratory of Huazhong University of Science and Technology as early as 1994.
The plan is to deploy three identical satellites to form an equilateral triangle formation with a side length of about 170,000 kilometers in orbit about 100,000 kilometers away from Earth around 2035. A gravitational wave observatory will be built in space to detect gravitational waves. .
Sun Yat-sen University and Huazhong University of Science and Technology jointly set up a research team to carry out a pre-research on the task of the Tianqin space gravitational wave detection plan, and formulated the implementation plan and roadmap of the Tianqin Plan. On February 21, 2016, Sun Yat-sen University officially released the "Zhenqin Plan" implementation roadmap "Plan 0123".
According to reports, Tianqin's "0123 Plan" technology roadmap adopts the step-by-step implementation of "laying eggs along the way", using reliable, economical and scientific methods to carry out technical research and on-orbit verification, and steadily promote the maturation of key technologies for space gravitational wave detection in China Finally, space gravitational wave detection will be carried out.
Luo Jun, chief scientist of the "Tianqin Project", introduced that "0123" has entered "1", where "1" includes the launch of a single high-precision space inertial reference technology test satellite and a single Lyra Pathfinder test satellite. The Qin-1 satellite is exactly this "single high-precision space inertial reference technology test satellite".
In October 2018, the National Aeronautics and Space Administration approved the establishment of the "High-precision Space Inertial Reference Technology Test Satellite Engineering Project", which was named "Tianqin No.1" because it corresponds to step "1" in the Tianqin "Plan 0123".
Zhang Lihua, chief designer of "Tianqin-1" satellite, introduced that "Tianqin-1" is China's first technical test satellite led by national projects and universities, and the first space gravitational wave detection technology test satellite officially set up by the country. .
(Original Title: "Lyme Project" Enters Space Experiment Phase)
(Source: Science and Technology Daily Editor: Yan Xin)