No. 1 Radar Surveillance Unit (1RSU) is the Royal Australian Air Force unit responsible for operating the Jindalee Operational Radar Network (JORN). While 1RSU's headquarters are located at RAAF Base Edinburgh the unit also has personnel stationed at the JORN sites near Longreach in Queensland, Alice Springs in the Northern Territory and Laverton in Western Australia. 1RSU was established on 1 July 1992 to operate the initial JORN site at Alice Springs and moved to RAAF Base Edinburgh in 1999.