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Space
Space
Science
Andrew Jones

China launches Gaofen Earth-observation satellite (video)

the orange exhaust plume from a launching rocket lights up a black night sky

China added to its fleet of Earth-observation satellites with a new launch on Sunday.

A Long March 4C rocket lifted off from Jiuquan Satellite Launch Center in northwest China at 11:45 a.m. EDT on Aug. 20 (1745 GMT; 1:45 a.m. Beijing time on Aug. 21), according to the China Aerospace Science and Technology Corporation (CASC).

The Long March 4C's exhaust plume illuminated insulation tiles that fell away from the rocket as it climbed into the night sky above Jiuquan in the Gobi Desert.

Related: China's Long March rocket family: History and photos

The exhaust plume from the Long March 4C carrying the Gaofen 12 (04) satellite illuminates falling insulation tiles as the rocket rises into the night sky above Jiuquan spaceport on Aug. 20, 2023. (Image credit: Ourspace)

Aboard was the Gaofen 12 (04) satellite, which is now in a near-polar orbit with an average altitude of around 373 miles (600 kilometers), according to U.S. Space Force tracking data. The satellite will likely raise its orbit to match that of the three other Gaofen 12 satellites, which launched in 2019, 2021 and 2022

Little is known about the satellite and its instruments. Previously launched Gaofen 12 satellites were described as microwave remote-sensing satellites, meaning they carry synthetic aperture radar payloads.

The satellite will be used in "a variety of fields, including land surveys, urban planning, road network design, crop yield estimation and disaster relief," according to Chinese state media.

Gaofen means "high resolution" in Chinese. The new satellite joins a series of Gaofen remote sensing satellites forming the China High-resolution Earth Observation System (CHEOS), including high- and medium-resolution optical and radar satellites in a range of low Earth and geostationary orbits.

The satellite was built by the China Academy of Space Technology (CAST), the main spacecraft maker under China's state-owned main space contractor, CASC. The Long March 4C rocket was manufactured by CASC's Shanghai Academy of Spaceflight Technology (SAST).

The launch was China's 37rd of the year. CASC says it plans to launch more than 200 spacecraft via around 60 separate launches across 2023 .

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