A radio telescope array at Hat Creek Radio Observatory, California, designed to search for extraterrestrial intelligence while simultaneously carrying out astronomical observations. The ATA is jointly owned and operated by the SETI Institute of Mountain View, California, and the University of California, Berkeley. When completed it will consist of 350 antennas, each of 6.1 m diameter, which can be combined electronically to form 16 different beams, each having the sensitivity of a single 114-m dish and the resolution of a 700-m dish. The ATA observes at wavelengths from 3 cm to 60 cm simultaneously. Its first 42 antennas began operation in 2007. Two intermediate stages, with 98 and 206 antennas, will enter service before the full array is completed. The ATA takes its name from the Paul G. Allen Foundation, which provided funding.
http://www.seti.org/ata Official telescope website.
Subjects: Astronomy and Astrophysics.