Santiago Central Office (SCO)
The ALMA headquarters, located in Vitacura district in Santiago of Chile, houses the Director's Office and its associated functional units, as well as astronomers, technicians and administrative staff, and the ALMA archive.
Address: Alonso de Córdova 3107, Vitacura , Santiago, Chile
Phone: +56 2 2467 6100
Operations Support Facility (OSF)
The ALMA Operations Support Facility, at an altitude of 2900 metres in the Chilean Andes, serves as the focal point for most of the observatory activities, hosting the antenna control room, laboratories and offices.
Address: Kilómetro 121, Carretera CH 23, San Pedro de Atacama, Chile
Phone: +56 2 2467 6416
Array Operations Site (AOS)
The ALMA Array Operations Site, at an altitude of 5000 metres in the Chilean Andes, houses the ALMA antennas and the correlator, the fastest data processing system ever used at an astronomical site.
Coordinates: 23° 1' 23.5" S, 67° 45' 16.7" W