A

David

Darling

Submillimeter Telescope Observatory (SMTO)

Submillimeter Telescope Observatory

The Submillimeter Telescope Observatory (SMTO) is an observatory at an altitude of 3,180 meters on Emerald Peak of Mount Graham, about 120 kilometers northeast of Tucson, Arizona. It houses the Heinrich Hertz Telescope, a 10-meter dish for use at submillimeter wavelengths that was opened in 1994. SMTO is jointly owned and operated by the Max-Planck-Institut für Radioastronomie (Bonn) and the University of Arizona's Steward Observatory.