The Orroral Valley tracking station supported Earth-orbiting satellites, as part of NASA's Spacecraft Tracking and Data Acquisition Network (STADAN). It is located approximately 50 kilometres south of Canberra, Australian Capital Territory (ACT). It was one of three tracking stations in the ACT, and seven in Australia. Construction of the site commenced shortly after site selection in 1963 and was completed in May 1965. It was home to a 26-metre antenna and several smaller VHF and microwave frequency antennas.