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KOMPSAT 3A (Arirang 3A)


KOMPSAT 3A (Korean Multi-purpose Satellite 3A) or Arirang 3A (아리랑 3A) is a lightweight Earth observation satellite developed by the Korea Aerospace Research Institute KARI. It is similar to the KOMPSAT 3 spacecraft.

The optical component is being developed by Astrium. Additionally to its predecessor Kompsat-3, it carries also a infra-red instrument. Therfore the satellite bus was lengthend and the solar arrays enlarged. The imaging insrtrument has a resolution of 50 cm or less in visible band and 5.4 m in MWIR.

It operates at an altitude of 526 km × 540 km, 97, in a sun-synchronous orbit for 4 years and monitor the Korean peninsula using a payload capable of submeter class resolution. The mission objectives of the KOMPSAT-3A are to provide continuous satellite Earth observation after KOMPSAT 1 and KOMPSAT 2 and to meet the nation's needs for high-resolution EO (Electro-Optical) images required for GIS (Geographical Information Systems) and other environmental, agricultural and oceanographic monitoring applications.

Nation: South Korea
Type / Application: Earth observation
Operator: KARI
Contractors: KARI, Astrium
Power: 3 deployable fixed solar arrays, batteries
Lifetime: 4 years
Mass: 1100 kg
Orbit: 526 km × 540 km, 97 (#3A)
Satellite COSPAR Date LS Launch Vehicle Remarks
KOMPSAT 3A (Arirang 3A) 2015-014A 25.03.2015 Do LC-370/13 Dnepr

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