China successfully launched the Yaogan-21 remote sensing satellite into preset orbit at 11:22 a.m. on Monday Beijing Time (0322 GMT) from Taiyuan Satellite Launch Center.
　
The carrier rocket, a Long March-4B, is also carrying the Tiantuo-2 satellite, designed and built by the National University of Defense Technology (NUDT).
　
Yaogan-21 will be used for scientific experiments, natural resource survey, estimation of crop yield and disaster relief.
　
The major task of Tiantuo-2 is to test these technologies and prepare for the research and development of video-imaging satellites with higher resolution.The satellite will be useful in surveys and monitoring of natural disasters
　
The launch is the 193rd mission for the Long March rocket family.