Back مصفوفة مقراب ألين Arabic Allen Telescope Array Byelorussian Allen Telescope Array Czech Allen Telescope Array Spanish Allen Telescope Array French Allen Telescope Array ID Allen Telescope Array Italian アレン・テレスコープ・アレイ Japanese 앨런 망원경 간섭계 Korean Allen Telescope Array Portuguese
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 The Allen Telescope Array (ATA-42), October 11, 2007. | |
| Alternative names | ATA  |
|---|---|
| Named after | Paul Allen |
| Part of | Hat Creek Radio Observatory |
| Location(s) | California, Pacific States Region |
| Coordinates | 40°49′04″N 121°28′24″W / 40.8178°N 121.4733°W |
| Organization | Radio Astronomy Laboratory SETI Institute |
| Altitude | 986 m (3,235 ft) |
| Wavelength | 60, 2.7 cm (500, 11,100 MHz) |
| Telescope style | Gregorian telescope radio interferometer |
| Number of telescopes | 42 |
| Diameter | 6.1 m (20 ft 0 in) |
| Secondary diameter | 2.4 m (7 ft 10 in) |
| Collecting area | 1,227 m2 (13,210 sq ft) |
| Website | www |
  Location of Allen Telescope Array | |
 Related media on Commons | |
The Allen Telescope Array (ATA), formerly known as the One Hectare Telescope (1hT), is a radio telescope array dedicated to astronomical observations and a simultaneous search for extraterrestrial intelligence (SETI).[1][2] The array is situated at the Hat Creek Radio Observatory in Shasta County, 290 miles (470 km) northeast of San Francisco, California.
The project was originally developed as a joint effort between the SETI Institute and the Radio Astronomy Laboratory (RAL) at the University of California, Berkeley (UC Berkeley), with funds obtained from an initial US$12.5 million donation by the Paul G. Allen Family Foundation and Nathan Myhrvold.[3] The first phase of construction was completed and the ATA finally became operational on 11 October 2007 with 42 antennas (ATA-42), after Paul Allen (co-founder of Microsoft) had pledged an additional $13.5 million to support the construction of the first and second phases.[4][5]
Although overall Allen has contributed more than $30 million to the project, it has not succeeded in building the 350 6.1 m (20 ft) dishes originally conceived,[6] and the project suffered an operational hiatus due to funding shortfalls between April and August 2011, after which observations resumed.[7][8][9][10] Subsequently, UC Berkeley exited the project, completing divestment in April 2012. The facility is now managed by SRI International (formerly Stanford Research Institute), an independent, nonprofit research institute.[11] As of 2016, the SETI Institute performs observations[12] with the ATA between the hours of 6 pm and 6 am daily.
In August 2014, the installation was threatened by a forest fire in the area and was briefly forced to shut down, but ultimately emerged largely unscathed.[13]
- ^ Terdiman, Daniel (12 December 2008). "SETI's large-scale telescope scans the skies". CNET News. Archived from the original on 2014-02-01. Retrieved 2008-12-12.
- ^ John Johnson Jr. (1 June 2008). "Aliens get a new switchboard: a SETI radio telescope in Northern California". The Los Angeles Times. Archived from the original on 4 October 2008. Retrieved 2008-09-29.
- ^ Dalton, Rex (1 August 2000). "Microsoft moguls back search for ET intelligence". Nature. 406 (6796): 551. doi:10.1038/35020722. ISSN 1476-4687. PMID 10949267. S2CID 4415108.
- ^ Dennis Overbye (11 October 2007). "Stretching the Search for Signs of Life". The New York Times. Retrieved 2009-04-14.
- ^ Staff writers (12 October 2007). "Skies to be swept for alien life". BBC News. Archived from the original on 12 October 2007. Retrieved 2007-10-12.
- ^ Shostak, Seth (2009). "When Will We Find the Extraterrestrials?" (PDF). SETI.org. Engineering & Science. Archived from the original (PDF) on 15 April 2015. Retrieved 20 February 2015.
- ^ Hardy, Michael (2011-04-29). "SETI stops listening for alien signals: Radio telescope array shut down due to funding cuts". Federal Computer Week. Archived from the original on 2011-10-03. Retrieved 2011-09-19.
- ^ Pierson, Tom (22 April 2011). "Status of the Allen Telescope Array" (PDF). SETI.org. SETI Institute. Archived from the original (PDF) on 3 March 2016. Retrieved 20 February 2015.
- ^ Cook, John (August 7, 2011). "Search for ET continues as Paul Allen-backed telescope hits short-term funding goal". GeekWire. Retrieved 29 December 2012.
- ^ "SETI Search Resumes at Allen Telescope Array, Targeting New Planets" (Press release). SETI Institute. December 5, 2011. Archived from the original on 8 December 2011. Retrieved 24 July 2019.
- ^ Robert Sanders (April 13, 2012). "UC Berkeley passes management of Allen Telescope Array to SRI". UC Berkeley NewsCenter. Retrieved 29 December 2012.
- ^ Harp, Gerald R. "SETI Signal Searching". SETI.org. SETI Institute. Archived from the original on 5 June 2019. Retrieved 7 July 2016.
- ^ Shostak, Seth (8 August 2014). "Forest Fires in Vicinity of Allen Telescope Array". SETI.org. SETI Institute. Archived from the original on 21 February 2015. Retrieved 20 February 2015.
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