The Q&U Bolometric Interferometer for Cosmology, that began in 2008 is located in Puna de Atacama and utilizes two frequencies of 150 as well as 220 gigahertz.
Q&U Bolometric Interferometer for Cosmology 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. Puna de Atacama The QUBIC project began in 2008 with the merger of BRAIN and MBI projects. 
