The highest astronomical observatory is the University of Tokyo Atacama Observatory, located at an altitude of 5,640 m (18,503 ft) on the summit of Cerro Chajnantor in a scientific reserve called Atacama Astronomical Park, Chile. The observatory houses a 1-m (3 ft 3.37 in) infrared telescope called miniTAO, which saw first light on 23 March 2009.