China launched a new meteorological satellite on September 25 using a Long March-2D launch vehicle. Launch of the second Yunhai-1 satellite took place at 00:54 UTC from the LC43/94 Launch Complex of the Jiuquan Satellite Launch Center. This was the fifth Chinese orbital launch in less than a month.
The Yunhai-1 are a series of meteorological satellites built by Shanghai Academy of Spaceflight Technology (SAST), possibly based on the CAST2000 platform.
According to official information, the satellites are used for observation of atmospheric, marine and space environment, disaster prevention and mitigation, and scientific experiments.
Data provided by the Yunhai-1 satellites complement the information provided by the Fengyun meteorological satellites.