Caltech Submillimeter Observatory 10.4 meter, Mauna Kea Observatory, HI. 12-03-17
The Caltech Submillimeter Observatory (CSO) was formerly one of the world's premier facilities for astronomical research and instrumentation development at submillimeter wavelengths. The 10.4 m diameter telescope is housed in a compact dome at 4070 m altitude near the summit of Maunakea, Hawai'i. CSO ceased scientific operations in 2015.