Arirang-1 or Arirang I is an unmanned artificial satellite created by the Korea Aerospace Research Institute and launched by a US rocket on December 21, 1999. This was the first satellite built primarily by South Korean engineers, although previous foreign-built satellites had been launched by Korean companies. It carries a surveillance camera able to distinguish objects with a diameter of 6.6 meters. It takes its name from the popular Korean folk song Arirang. The Arirang-1 was succeeded by the Arirang-2 in 2006. Additional satellites in the series are planned.