The NANTEN2 Observatory is a southern sky observatory in the Atacama Desert of northern Chile. It is located at an altitude of 4,800 m (15,748 ft) on Pampa la Bola next to Cerro Chajnantor.[1][2] 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.[3]
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.