KOMPSAT-3A (Arirang-3A)
Description
KOMPSAT-3A (Korea Multi-Purpose Satellite-3A, also known as Arirang-3A) is a high-resolution Earth observation satellite developed by KARI and launched on March 26, 2015. It carries a dual electro-optical and infrared imaging payload capable of 0.55 m panchromatic, 2.2 m multispectral, and 5.5 m mid-wave infrared (MWIR) resolution, making it the world's first civilian satellite to carry a sub-meter optical camera combined with an infrared sensor. Operating from a 528 km sun-synchronous orbit, KOMPSAT-3A supports applications including precision mapping, disaster monitoring, resource management, environmental surveillance, and night-time thermal imaging. The satellite bus is based on heritage from KOMPSAT-3 and is designed for a 4-year design life. KOMPSAT-3A was developed entirely by KARI with Korean domestic technology, representing a major milestone in Korea's indigenous space capability.