A Long March-4C rocket carrying the Yaogan-29 remote sensing satellite blasts off at the Taiyuan Satellite Launch Center in Taiyuan, capital of north China's Shanxi Province, on Nov. 27, 2015. The satellite will be used for experiments, land surveys, crop yield estimates and disaster relief. Photo: Xinhua

A Long March-4C rocket carrying the Yaogan-29 remote sensing satellite blasts off at the Taiyuan Satellite Launch Center in Taiyuan, capital of north China's Shanxi Province, on Nov. 27, 2015. The satellite will be used for experiments, land surveys, crop yield estimates and disaster relief. Photo: Xinhua 

A Long March-4C rocket carrying the Yaogan-29 remote sensing satellite blasts off at the Taiyuan Satellite Launch Center in Taiyuan, capital of north China's Shanxi Province, on Nov. 27, 2015. The satellite will be used for experiments, land surveys, crop yield estimates and disaster relief. Photo: Xinhua 

A Long March-4C rocket carrying the Yaogan-29 remote sensing satellite blasts off at the Taiyuan Satellite Launch Center in Taiyuan, capital of north China's Shanxi Province, on Nov. 27, 2015. The satellite will be used for experiments, land surveys, crop yield estimates and disaster relief. Photo: Xinhua 

A Long March-4C rocket carrying the Yaogan-29 remote sensing satellite blasts off at the Taiyuan Satellite Launch Center in Taiyuan, capital of north China's Shanxi Province, on Nov. 27, 2015. The satellite will be used for experiments, land surveys, crop yield estimates and disaster relief. Photo: Xinhua