NANTEN2 Observatory
The NANTEN2 Observatory is a southern sky observatory in the Atacama Desert of northern Chile. It is located at an altitude of on Pampa la Bola next to Cerro Chajnantor. The observatory is equipped with a millimeter and submillimeter wave telescope that is used for southern sky observations of atomic and molecular spectral lines in 110 GHz to 880 GHz range. It is one of a number of observatories operating at Llano de Chajnantor Observatory. It is operated as a collaboration between research institutes in Japan, South Korea, Germany, Australia and Chile.
The instrument was previously located at the Las Campanas Observatory from 1995 to 2004; it was known as the NANTEN millimeter-wavelength radio telescope back then.