Chollian-2A

Chollian-2A, also known as GEO-KOMPSAT-2A (Geostationary Korea Multi Purpose Satellite-2A), is a weather satellite of South Korea, launched on December 4, 2018. It is a twin satellite with Chollian-2B.

== Development == left|thumb|Electromagnetic wave test The Geostationary Composite Satellite Development Project for the self-reliance of geostationary satellite development technology was conducted from July 2011 to October 2020. The design, assembly, and testing of the main body were all done with domestic technology, and through this, the technology for geostationary satellites was secured. The Ministry of Science and ICT and the Korea Meteorological Administration supported the development of the system and main body of the satellite with a total project cost of 325.2 billion won. The Korea Aerospace Research Institute, the main research institute, has been designing the satellite system through analysis of the system requirements of each ministry since March 2012.