China’s hi-res SAR imaging satellite put into use

China’s first high-resolution Synthetic Aperture Radar (SAR) satellite has passed all its in-orbit tests and is now operational, according to the State Administration of Science, Technology and Industry for National Defense on Monday.

Released photo shows the image of east China’s Hongze Lake, which is received from China’s first high-resolution synthetic Aperture Radar (SAR) satellite on Aug. 15, 2016. (Xinhua/State Administration of Science, Technology and Industry for National Defense)

The Gaofen-3 satellite, which is accurate to one meter in distance, was launched in August 2016.

Tong Xudong, a senior engineer with the administration, said the satellite covers the globe with an all-weather, 24-hour observation service and will be used for disaster prevention and reduction, ocean monitoring, and the protection of maritime rights.

Gaofen-3 is China’s first low orbit remote sensing satellite to have a long lifespan.

With 12 imaging modes, Gaofen-3 has the most imaging modes in the SAR imaging satellite family. The high-definition observation satellite is capable of switching freely between various imaging modes, taking wide pictures of both earth and bodies of water, and detailed photographs of specific areas.

Gaofen-3’s spatial resolution ranges from one meter to 500 meters and its largest viewing swath is 650 kilometers.

According to the administration, Gaofen-5 hyerspectrual satellite is planned to be launched in September 2017.