Why did China launch 24 satellites to form a constellation?

It is reported that the Tsinghua University Center for Astrophysics and the Institute of Astrophysics released the "Celestial Plan" in Beijing on September 2 1, which will launch 24 tiny satellites to form a constellation to detect the electromagnetic counterpart of gravitational waves.

According to the report, the goal of the "Sky Grid Project" is to detect the electromagnetic counterpart of gravitational waves in the gamma-ray band, which is an electromagnetic radiation accompanying the outbreak of gravitational waves. Its detection is very important for understanding the astrophysical process under extreme conditions. CubeStar platform can be equipped with advanced scintillator detectors to realize detection, gradually realize all-day coverage through satellite networking, and use signal time delay to locate.

It is reported that the preliminary scientific demonstration design report has been completed and the laboratory test system has been successfully developed. Its scientific significance and feasibility have been recognized by experts in related fields. As a service provider of micro-satellite space experiments, Tianyi Research Institute is responsible for the development, launch, operation and maintenance of the micro-satellite platform in the project.

According to the plan, the first technical verification satellite of "Tian Ge Plan" will be developed by the end of 20 17, and it is planned to be launched into orbit with the Kuaizhou 11 rocket in 20 18. The launch network of all 24 satellites is expected to be completed in 2023. If the project is successful, it will realize the deep combination of cutting-edge technology and commercial aerospace.

I hope China's space exploration can advance by leaps and bounds!