Abstract
The Infrared and Submillimetric OASI Observatory is the first permanent telescope installed in Antarctica. The installation was completed in 1989 at Terra Nova Bay. The diameter of the primary mirror is 2.6 m and the receiver is a cryogenic multichannel bolometric photometer. The OASI Observatory takes advantage of the privileged position in Antarctica, where the atmosphere is very clear and the transmission is very high (≥ 90% at 2 mm wavelength). It has been designed mainly to investigate the small scale anisotropics of the Cosmic Background Radiation and Galactic and extragalactic diffuse emission.
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