Arirang-2, also known as KOMPSAT-2, is a South Korean multipurpose satellite. It was launched from Plesetsk, Russia at 4:05 PM KST on 28 July 2006. It began to transmit signals at 11 PM the same day. Like the earlier Arirang-1 satellite, it takes its name from the popular Korean folk song Arirang. Its launch was the culmination of a project begun in 1999. Arirang-2 orbits at a height of 685 kilometers, circling the Earth 14 times per day, and is expected to maintain that orbit for 3 years. It weighs 765 kilograms.