An aperture-synthesis radio telescope sited at an altitude of 2124 m on the Plains of San Agustin, west of Socorro, New Mexico, and operated by the US National Radio Astronomy Observatory. It consists of 27 movable dishes of 25-m aperture, mounted along a Y-shaped railway track with arms 19, 21, and 21 km long. The telescopes can be arranged in four different configurations with maximum baselines of 1, 3.6, 10, and 36 km. The data from the antennas is combined electronically to give the resolution of an antenna 36 km across with the sensitivity of a dish 130 m in diameter. The VLA was completed in 1980, and has its headquarters in Socorro, New Mexico. The array is now being upgraded to produce the Expanded Very Large Array (EVLA) with new electronics and up to eight new dishes giving baselines to 350 km.
http://www.vla.nrao.edu/ Official telescope website.
Subjects: Astronomy and Astrophysics.