It is a custom build telescope located in Cerro Toco in Chile, to measure CMB fluctuations with arcminute resolution and noise of 1 micro k per pixel. Beyond measuring the CMB primordial power spectrum the instrument is designed to study the secondary effects such as thermal SZ, kinetic SZ, CMB lensing , OV, Rees-Sciama, etc. Click
HERE for more information of the projects I am interested in.