Allen Telescope Array

The Allen Telescope Array is a radio-telescope array of 42 6.1-meter dishes at the Hat Creek Radio Observatory (HCRO) in northern California, owned by the SETI Institute (an organization supporting SETI research, the search for extraterrestrial intelligence). It has a wide field of view and covers frequencies 0.5-11.2 GHz. In addition to SETI research, it is suitable for other radio astronomy applications including 21-cm line observations, as well as fast radio burst (FRB) study, the latter of both SETI and astrophysics interest. The 42 dishes (ATA-42) went operational in 2007, with some subsequent receiver upgrades. Plans from the beginning have been to increase it in stages to 350 dishes (ATA-350).