Air Time Authority
The full form of ATA is Airtime Authority.
Allen Telescope Array is a full form of ATA. It is named after Paul Allen after the donation of $11.5 million by Paul G. Allen Family Foundation. It is located in California and was built between 2005 to 2007. The Allen Telescope Array was formerly known as the one-hectare telescope (1ht). It is a radio telescope array dedicated to astronomical observations and also for SETI(search for extraterrestrial intelligence). It became operational on October 11th, 2007 with 42 antennas.