Main mirror of the radio telescope consists of 36 groups with 25 elements
of each one. They are marked by circle with number 1-36.
Size of a element 11.5 x 2 m.
Thus total geometric area of the main circle is equal to 20000 m in square.
Western sector (1 - 8 groups) are driving with
new automatic system of the. The surface of its elements
are adjusted with accuracy better 0.2 mm.