The operations hub for NASA's deep-space network (DSN). It is located in Building 230 of the Jet Propulsion Laboratory. The centre monitors the operations at the three deep-space communications complexes at Goldstone, California, near Canberra, Australia, and near Madrid, Spain. It also oversees the performance of the network for flight-mission users, provides information for organizing and running the network, and takes part in network and mission testing.