The Q&U Bolometric Interferometer for Cosmology, that began in 2008 is located in Puna de Atacama and utilizes two frequencies only including wavelengths over 200 gigahertz.
The QUBIC project began in 2008 with the merger of BRAIN and MBI projects. Puna de Atacama QUBIC observes the sky at two frequencies, 150 and 220 GHz, so that it can separate the cosmological signal from foreground emission, in particular thermal dust emission. 150, 220 GHz (2.0, 1.4 mm) 
