A Long March-4B rocket launching the Gaofen-7 satellite. Photo: Xinhua

On Sunday, China launched a new Earth Observation (EO) satellite, Gaofen-7, which aims to play an important role in land surveying and mapping, urban and rural construction, and statistical investigation, according to the China National Space Administration (CNSA).

The Gaofen-7, launched on a Long March-4B rocket at 11:22 a.m. (Beijing Time) from the Taiyuan Satellite Launch Center in north China’s Shanxi Province, is China’s first civil-use optical transmission three-dimensional surveying and mapping satellite that reaches the sub-meter level, CNSA said.

The satellite and carrier rocket were developed by the China Academy of Space Technology (CAST) and the Shanghai Academy of Spaceflight Technology under the China Aerospace Science and Technology Corporation. The users of the Gaofen-7 satellite will be mainly from the Ministry of Natural Resources, the Ministry of Housing and Urban-Rural Development, and the National Bureau of Statistics.