China launches remote sensing satellite groups

The Yaogan, or Remote-Sensing, series satellites are China's largest family of Earth-observation satellites and have different payloads, including radar, infrared sensors, and optical lenses. Data and images obtained by them have been widely used in governments, public service sectors, and businesses.

The Long March 4B rocket model is built by the Shanghai Academy of Spaceflight Technology. It can transport multiple satellites with a combined weight of 2.5 metric tons to a typical sun-synchronous orbit at an altitude of 700 kilometers. The launch marked the 64th space mission in China and the 666th flight of the Long March rocket fleet.