The Siding Spring Survey (SSS) is a Near-Earth object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, New South Wales, Australia. It is the southern hemisphere counterpart of the Catalina Sky Survey (CSS) located in the Santa Catalina Mountains on Mt Bigelow, near Tucson, Arizona, USA. SSS is jointly operated by the University of Arizona and the Australian National University, with funding from NASA. SSS (IAU observatory code E12) is located at Siding Spring Observatory (IAU observatory code 413) at Longitude 149.1 East, Latitude 31.3 South, Altitude 1150m ASL, approximately 400km north west of Sydney.
