Some important radio telescopes

name diameter of dish

(metres) short wavelength

limit (cm) location

Filled-aperture telescopes

Arecibo Observatory 305 6 Arecibo, P.R.

Green Bank Telescope 110 x 100 0.3 Green Bank, W.Va., U.S.

Effelsberg Radio Telescope 100 1 Effelsberg, Ger.

Lovell Telescope 76 6 Jodrell Bank, Cheshire, Eng.

Parkes Observatory 64 1 Parkes, N.S.W., Austl.

IRAM Pico Veleta Observatory 30 0.1 Pico Veleta, Spain

Haystack Radio Telescope 37 0.3 Westford, Mass., U.S.

RATAN-600 576 1 Zelenchukskaya, Russia

Nobeyama Radio Observatory 45-m Telescope 45 0.1 Nobeyama, Japan

Caltech Submillimeter Observatory 10 0.05 Mauna Kea, Hawaii, U.S.

James Clerk Maxwell Telescope 15 0.04 Mauna Kea, Hawaii, U.S.

Heinrich Hertz Submillimeter Telescope 10 0.06 Mount Graham, Ariz., U.S.

name size of array (km) number of dishes diameter of dish (metres) short wavelength limit (cm) location

Arrays

Very Large Array 36 27 25 0.7 Socorro, N.M., U.S.

Westerbork Synthesis Radio Telescope 3.2 14 25 6 Westerbork, Neth.

Australia Telescope Compact Array 3 6 22 0.3 Narrabari, N.S.W., Austl.

Very Long Baseline Array 8,000 10 25 0.3 U.S. Virgin Islands to Hawaii

Combined Array for Research in Millimeter-wave Astronomy 2 16 6 x 10 m,

10 x 6 m 0.1 Big Pine, Calif., U.S.

Submillimeter Array 0.5 8 6 0.03 Mauna Kea, Hawaii, U.S.

Giant Metrewave Wavelength Telescope 25 30 45 21 Pune, India

Multi-Element Radio Linked Interferometer Network 217 7 1 x 76 m,

1 x 32 m,

1 x (32 x 25) m,

4 x 25 m 1.3 southern England

IRAM Plateau de Bure Interferometer 0.4 6 15 0.1 Plateau de Bure, France

Nobeyama Millimeter Array 0.6 6* 10 0.1 Nobeyama, Japan

*Sometimes the Nobeyama 45-metre filled-aperture telescope is used as a seventh dish of this array.