RATAN-600

A radio telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences, located at Zelenchukskaya in the Caucasus Mountains. The name is an acronym derived from "radio astronomy telescope of the Academy of Sciences" in Russian. It consists of 900 parabolic plates forming a circle 600 metres (2,000 feet) in diameter. It can be used as a whole, or each quarter can operate as a self-contained unit.