| has gloss | eng: | class="toccolours" style="margin-left: 1em; float:right; width: 25em;" |- |style="width:50%;"|Organization||Operated by several universities |- |Wavelength regime||110 GHz to 880 GHz |- ! colspan="2" style="background: #87CEEB; text-align:center;" | Physical characteristics |- |Telescope style||Cassegrain reflector |- |Diameter||4 m ( 13.1 feet) |- |Collecting area|| |- |Effective focal length|| |- ! colspan="2" style="background: #87CEEB; text-align:center;" | Instruments |- style="vertical-align: top;" ! colspan="2" style="text-align:left; font-weight:normal;" | Sub millimeter array receiver (planned) |- style="vertical-align: top;" ! colspan="2" style="text-align:left; font-weight:normal;" | Acousto Optical Spectrometer (AOS) |- style="vertical-align: top;" ! colspan="2" style="text-align:left; font-weight:normal;" | Digital Fourier Transform Spectrometer (DFT) |} The NANTEN2 Observatory is a southern sky observatory in the Atacama Desert of Northern Chile. |