Dominion Radio Astrophysical Observatory
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Dominion Radio Astrophysical Observatory(DRAO) A national facility, founded in 1959 and operated by the Herzberg Institute of Astrophysics, National Research Council of Canada; it is located near Penticton, British Columbia. Its main instruments are a 26-meter dish and an aperture synthesis interferometer, working at 408 and 1420 MHz. The interferometer is composed of seven 9-meter paraboloid dishes on a 600-meter E–W track. Both telescopes are used to map continuum and hydrogen-line emission from the Galaxy. DRAO is one of the world's most radio-quiet sites.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006