The telescope is located a on Mount Aragats, at a height of 1,711 metres (5,614 ft). The radio telescope has a diameter of 54 m (177 ft). It is hemispherical, and fixed to the ground, with a movable secondary mirror with a diameter of 5 m (16 ft). This provides a useful diameter of 32 m (105 ft). It has a surface accuracy around 70/100 μm, giving an operating wavelength of 30-3mm (10-100GHz), and was originally designed to observe down to 1 mm (300 GHz).
Construction took place between 1975 and 1985, first operating in 1986. It was not damaged by the 1988 Armenian earthquake and was used for observations between 1987 and 1990.
The optical telescope has a 2.6 m (8.5 ft) mirror, with a 10 m (33 ft) focal length. Telescope never operates from the date of its implementation.
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