17 September 2026 year Fr. 02:40 (UTC) from the center of launch of Juzuan satellites, People's Republic of China with the help of the Kuaizhou 11 launch vehicle two Chinese radar surveillance satellites "Tianyi-51,52" were launched.
"Tianyi-51,52" are Chinese commercial Earth remote sensing satellites developed by Spacety (Changsha Tianyi Space Science and Technology Research Institute).
The satellites are equipped with a synthetic aperture radar (SAR) and is designed for all-weather radar monitoring of the planet's surface, in particular for civilians, environmental and geodetic tasks in partnership with regional institutes of China.
The main purpose of the spacecraft is to monitor dangerous natural phenomena in the mountainous Yunnan region of China, where landslides and mudslides often occur, subsoil control, inspection of mines, quarries and mining and round-the-clock supervision of hydroelectric dams and forest areas.
«Kuaizhou» – Chinese solid propellant launch vehicle, розроблена для дешевого і швидкого запуску на орбіту невеликих супутників. The rocket was created from 2009 year by the "China Aerospace Science and Industry Corporation" in cooperation with the Harbin Institute of Technology.
The launch vehicle is carried out using a mobile launcher and can be carried out from any spaceport in China. Preparation for the launch requires only 6 personnel and can be performed during 24 hours. "Kuaizhou-11" is a version of the launch vehicle with a diameter of 2,2 meter and starting mass 78 T, can output to 1 tons of payload into high orbit 700 km.
According to the CCS