Long March 2 with FSW-0

Long March 2 is a China-developed Long March series of carrier rockets , one for secondary liquid rocket, mainly used for launching satellites and other orbital height of 500km in the following types of near-Earth Spacecraft is the basic model of China's space vehicle. Based on the technology of Long March 2, the Long March 2 series of launch vehicles and the Long March 3 series of launch vehicles were developed, and the launch success rate was extremely high.The Long March 2 carrier rocket failed its first flight on November 5, 1974, and its second launch was successful on November 26, 1975. The rocket has now been retired, with a total of 4 launches, 3 successes, and 1 failure. FSW-0 is the first returnable satellite model developed in China, and its main use is for land and resources census. A prism scanning panoramic camera was used to obtain the first batch of ground-based photographs, but the resolution was lower and the distortion was severe. The satellite adopts an analog three-axis stability control system, but there is no orbit control system, so the orbit decay is faster and the orbit stay time is short, which also affects the accuracy of returning to the landing point .