Allen Telescope Array, Radio telescope array in Hat Creek, California, US.
The Allen Telescope Array consists of 42 antennas, each measuring 6.1 meters in diameter, spanning across the Hat Creek Radio Observatory grounds at 986 meters elevation.
Construction initiated in 2001 with an $11.5 million donation from the Paul G. Allen Family Foundation, and the array commenced operations on October 11, 2007.
Scientists at the facility conduct daily observations of multiple star systems, advancing both radio astronomy research and the search for extraterrestrial intelligence signals.
The telescope array operates within a frequency range of 500 MHz to 11 GHz, processing signals through 32 synthesized beams with 104 MHz bandwidth capabilities.
Each antenna incorporates offset Gregorian optics with a secondary mirror system that reduces terrestrial interference while maintaining clear signal reception from space.
Location: California
Diameter: 2.4 m
Part of: Hat Creek Radio Observatory
Website: http://seti.org/ata
GPS coordinates: 40.81778,-121.47333
Latest update: May 27, 2025 08:44
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