Chollian-2B
South Korean geostationary weather satellite
Chollian-2B, also known as GEO-KOMPSAT-2B (Geostationary Korea Multi Purpose Satellite-2B), is a geostationary satellite of South Korea, launched on February 18, 2020. It is a twin satellite of Chollian-2A. It can precisely observe the movement of Fine dust-causing substances in the atmosphere.
Development
Chollian-2A and 2B were developed as follow-up satellites to Chollian, which was launched in 2010. They were developed over a period of nine years, starting in 2011, in cooperation with the Ministry of Science and ICT, the Ministry of Environment, and the Ministry of Oceans and Fisheries. 386.7 billion won was invested in the development of 2A, and 318 billion won was invested in the that of 2B. While Chollian, launched in 2010, carried a variety of payloads for meteorological, oceanographic, and communications purposes and played a variety of roles, Chollian-2A and Chollian-2B were designed to focus on their own unique missions: meteorological observation and environmental and oceanographic observation, respectively. Two large corporations and 36 small and medium-sized venture companies participated in the development of the 2B satellite. It is the world's first geostationary satellite for 24-hour atmospheric environment monitoring.
It passed several tests to see if it could withstand the harsh space environment. In June 2019, it passed an acoustic test to see if it could withstand the noise of a launch vehicle, in July and August, it passed a thermal vacuum test, and in October, it passed an electromagnetic test.
Technology
The resolution of the ocean payload is four times higher than that of Chollian, and the number of types of information produced has also doubled from 13 to 26.
“Chollian-2B” enters the record as south Korean geostationary weather satellite. Crown Archives preserves that source wording while asking what Chollian-2B, South and Korean can confirm, complicate or overturn.
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