List of radio telescopes

This is a list of radio telescopes that are or have been used for radio astronomy. It includes both single dishes and interferometric arrays. They are listed by region, then by name; unnamed telescopes are in reverse size order at the end of the lists.

Africa

Name	Location	Remarks
HartRAO Radio Telescope	Hartebeesthoek Radio Astronomy Observatory, Johannesburg, South Africa	26 m dish. Also site for first 15 m prototype Telescope for KAT (SKA 1%).
Karoo Array Telescope (KAT)	Carnarvon, South Africa	Twenty 15 m telescopes planned for 2009 as a 1% pathfinder for the Square Kilometre Array.

Antarctica

Name	Location	Remarks
Degree Angular Scale Interferometer (DASI)	Amundsen-Scott South Pole Station	13-element interferometer measuring anisotropies in the cosmic microwave background.
South Pole Telescope (SPT)	Amundsen-Scott South Pole Station	10-m microwave telescope making observations of clusters using the Sunyaev-Zeldovich effect.

Asia

Name	Location	Remarks
Delingha 13.7 m	Delingha, Qinghai, China	Dish diameter: 13.7 m. Frequency range: 85—115 GHz. Site altitude: 3200 m. Operated by Purple Mountain Observatory.
Giant Metrewave Radio Telescope (GMRT)	Pune, India	Thirty 45 m wire dishes; largest telescope at meter wavelengths. Operated by the National Centre for Radio Astrophysics.
Nobeyama radio observatory	Nagano Prefecture, Japan	45m single-dish short-millimetre telescope, and six 10m telescopes of Nobeyama Millimetre Array (NMA), both operated by National Astronomical Observatory of Japan (NAOJ)
Ooty Radio Telescope (ORT)	Ooty, India	approximately 530 m long and 30 m wide operates at 326.5 MHz
Sheshan	Shanghai, China	25m. Operated by SHAO (Shanghai Astronomical Observatory)
Gauribidanur Radio Observatory,	Gauribidanur, India	Operated by (Indian Institute of Astrophysics),A Radioheliograph operates at the range 40-150 MHz.

Australia

Name	Location	Remarks
Australia Telescope Compact Array	Narrabri, New South Wales	6x22m dish aperture synthesis array, operated by ATNF (Australia Telescope National Facility).
Molonglo Observatory Synthesis Telescope (MOST)	Molonglo (near Canberra, ACT)	Operated by the School of Physics at the University of Sydney. East-west arm of the former Molonglo Cross Telescope, approximately 800 m in length. Operates at 843 MHz.
Mopra Radio Telescope	Mopra Observatory, near Coonabarabran, New South Wales	22 m dish, operated by ATNF (Australia Telescope National Facility)
Parkes Radio Telescope	Parkes Observatory, Parkes, New South Wales	64 m telescope (2nd largest movable dish in the Southern Hemisphere), operated by ATNF (Australia Telescope National Facility)
Mt Pleasant Radio Observatory	Hobart, Tasmania	26 m telescope, operated by the University of Tasmania
Ceduna Radio Observatory	Ceduna, South Australia	30 m telescope, operated by the University of Tasmania
ASKAP	Mid-west region of Western Australia	ASKAP, the Australian Square Kilometre Array Pathfinder. 30-40 antennas, each 12 m with ~ 30 sq degrees FoV at 1.4 GHz. Operated by ATNF (Australia Telescope National Facility)

Europe

European VLBI Network (EVN)

Name	Location	Remarks
Arcminute Microkelvin Imager	Mullard Radio Astronomy Observatory, Cambridge, England
Dwingeloo (CAMRAS)	Dwingeloo, Netherlands	25 m steerable dish, formerly operated by ASTRON, now in restoration by CAMRAS [1]
Effelsberg	Bad Münstereifel-Effelsberg near Bonn, Germany	100 m dish operated by Max Planck Institut für Radioastronomie
“Herouni Mirror Radio telescope” - Radio-Optical Telescope (ROT-54/2.6)	Orgov village, Republic of Armenia	diameter - 54 m (useful - 32)Radio Phisical Research Institute
Distributed across Europe with members located in China, South Africa and the USA	VLBI array operated by the European Consortium for VLBI
IRAM - 30m	Pico Veleta, in Granada, Spain	30m dish operated by the Institute for Millimetric Radio Astronomy (Institut de Radio Astronomie Millimétrique, IRAM); works in the millimeter range (1mm to 3mm) both with superheterodyne and bolometric detectors.
Lovell Telescope	Jodrell Bank Observatory, Cheshire, England	76 m dish
RT-70(P-2500)	Center for deep space communications, Evpatoria, Crimea, Ukraine	RT-70, 70 m telescope, operating range 5–300 GHz
RT-70(P-2500)	Galenki (Ussuriysk), Russia	RT-70, 70 m telescope, operating range 5–300 GHz
RT-70(P-2500)	plato Suffa, Uzbekistan	RT-70, operating range 5–300 GHz
LOFAR (LOw Frequency ARray)	Netherlands, Germany; in the future, Great Britain, France,Poland	Low frequency array of dipole antennas at 1.3 to 30m wavelengths, with a strongly distributed signal processing system. The telescope beam is constructed in software from combinations of antenna signals.
ALLBIN (Amateur Linked Long Baseline Interferometer Network)	Germany	A Small Network of Radio Telescopes and Radio Spectrographs doing Amateur Radio Astronomy at a Very High standard coordinated by the European Radio Astronomy Club www.eracnet.org Research and Developement Telescope in Mannheim Germany.
Mark II	Jodrell Bank Observatory, Cheshire, England	25 m dish
MERLIN (Multi-Element Radio Linked Interferometer Network)	United Kingdom	Consists of the Cambridge 32 m at Mullard Radio Astronomy Observatory, Darnhall, Defford, Tabley (also known as Pickmere) and Knockin. Also includes the Lovell and Mark II telescopes at Jodrell Bank.
Metsähovi Radio Observatory	Kylmälä, Kirkkonummi, Finland	13.7 m dish, operates at 2 to 150 GHz, surface accuracy 0.1 mm (rms).
Nançay Radio Telescope (NRT)	Nançay, France
Northern Cross	Medicina Radio Observatory, Medicina, Bologna, Italy [2]	32000 m² interferometer, cylindrical-paraboloid steerable over NS., 408 MHz, Beam=3'
Plateau de Bure Interferometer	Plateau de Bure, Grenoble, France	Originally an array of 3 antennas, since 2005 has 6 antennas, operating at millimeter wavelengths.
RATAN-600	Bolshoi Zelenchuk, Russia	600 m dish, operates at 610 MHz to 30 GHz, world's largest diameter individual radio telescope
Ryle Telescope	Mullard Radio Astronomy Observatory, Cambridge, England	Eight 13 m dishes, and is currently used as one part of the Arcminute Microkelvin Imager.
Stockert	Bad Münstereifel-Effelsberg near Bonn, Germany	25 m dish operated by University of Bonn and Max Planck Institut für Radioastronomie, closed in 1993
TNA 1500	Kalyasin, Russia [3]	64 m fully steerable dish, up to 5.86 GHz
TNA 1500	Medvezhji Ozera(Bear Lakes), Russia [4]	64 m fully steerable dish, up to 5.86 GHz
Toruń RT4 32 m	Toruń Centre for Astronomy, Toruń, Poland	RT4 (32 m) parabolic antenna
Toruń RT3 15 m	Toruń Centre for Astronomy, Toruń, Poland	RT3 (15 m) antenna.
Ukrainian T-shaped Radio telescope, second modification (UTR-2)	Grakovo, Kharkiv, Ukraine	World's largest radio telescope at decametre wavelengths (max. collective area 150 000 m²).
Very Small Array (VSA)	Observatorio del Teide, Canary Islands, Spain	Array of 14 dishes, with two larger source-subtraction dishes. Controlled remotely from UK.
Westerbork Synthesis Radio Telescope (WSRT)	Westerbork, Netherlands	Array of 14 25-meter dishes [5]
Yebes RT 40 m	Observatorio Astronómico Nacional, Yebes, Guadalajara, Spain [6]	40 m parabolic steerable telescope for mm and cm wavelenghts
32 m	Ventspils International Radio Astronomy Center, Irbene, Latvia	32-meter fully steerable parabolic, centimetre-wave range antenna RT-32 http://www.virac.lv/
32 m VLBI dish	Medicina Radio Observatory, Medicina, Bologna, Italy [7]	32 m, fully steerable dish, 1400 MHz...43 GHz
32 m VLBI dish	Noto Radio Observatory, Noto, Italy, [8]	32 m, fully steerable dish, 300 MHz-86 GHz. Operates both as part of astronomical and geodetic VLBI network and as a single dish.
25 m telescope	Onsala Space Observatory, Onsala, Sweden	25 m telescope
22 m telescope	Simeiz Observatory, Simeiz, Crimea, Ukraine	22-m radio telescope for mm and cm radio waves. Located at the foot of mount Koshka (Cat) in Katsiveli (near Simeiz). Belongs to the Crimean Astrophysical Observatory, the Department of Radioastronomy.
20 m telescope	Onsala Space Observatory, Onsala, Sweden	20 m telescope
ADU-1000	Center for deep space communications, Evpatoria, Crimea, Ukraine	8 mirrors with diameter of 16 meters. Square is 1000 sq. meters.
16 m	Ventspils International Radio Astronomy Center, Irbene, Latvia	16-meter diameter antenna RT-16 http://www.virac.lv/
RT-7.5 (Bauman's radio telescope)	Moscow Oblast, Russia	Two 7.75-meter diameter antennas (only one is working at the moment) Remote access computer-aided laboratory

North America

Name	Location	Remarks
Allen Telescope Array	Hat Creek Radio Observatory, Hat Creek, California, USA	42 6-m gregorian offset dishes using log periodic cooled feed covering .5GHz - 11.5GHz. Operated by joint agreement between Radio Astronomy Laboratory, University of California, Berkeley and the SETI Institute
Arecibo Observatory	Arecibo, Puerto Rico	World's largest single-dish radio telescope.
ARO 12m Radio Telescope	Kitt Peak National Observatory, Tucson, Arizona, USA	Previously operated by the NRAO, this telescope is currently operated by the University of Arizona's Arizona Radio Observatory, part of Steward Observatory.
Caltech Submillimeter Observatory	Mauna Kea Observatory, Hawaii, USA	10.4 m (34 ft) diameter submillimeter wavelength telescope
Combined Array for Research in Millimeter-wave Astronomy (CARMA)	Owens Valley Radio Observatory, Big Pine, California, USA	Heterogeneous interferometer array composed of 6 10-m elements, 9 6-m elements, covering frequencies ranging from 75-115GHz, ~230, and ~345GHz. Operated by joint agreements between Radio Astronomy Laboratory University of California, Berkeley, Caltech, University of Maryland, College Park, University of Illinois, Urbana-Champaign
Five College Radio Astronomy Observatory (FCRAO)	Amherst, Massachusetts, USA	Operated by UMass Amherst
Green Bank Interferometer (GBI)	Green Bank, West Virginia, USA	Three 26 meter (85 ft) radio telescopes operated by NRAO
Green Bank Telescope (GBT)	Green Bank, West Virginia, USA	World's largest fully mobile single-dish radio telescope
Heinrich Hertz Submillimeter Telescope (SMT)	Mount Graham, Arizona, USA	10-meter radio telescope operated by the University of Arizona's Arizona Radio Observatory, part of Steward Observatory.
James Clerk Maxwell Telescope	Mauna Kea Observatory, Hawaii, USA	15-metre submillimetre-wavelength telescope operated by the Joint Astronomy Centre
Large Millimeter Telescope (LMT)	Sierra Negra, Puebla, Mexico	A 50 m. telescope in millimetric wavelengths, the largest single dish instrument operating at this frequencies.
Morehead State University 21m.	Morehead, Kentucky, USA	A 21 m. telescope used for academic research and satellite data retrieval and control.
Solar monitor, two 1.8 m dishes	Dominion Radio Astrophysical Observatory, Penticton, British Columbia, Canada	The first dish here was originally a backup for the Algonquin site, but when the AGO site was later closed its instrument moved to DRAO and became its backup.
SRI International Antenna Facility	Palo Alto, California, USA	45.7 m parabolic reflector. Owned by the U.S. Government and constructed by SRI on land leased from Stanford University, the Antenna Facility is known locally as "the Dish."
Submillimeter Array (SMA)	Mauna Kea Observatory, Hawaii, USA	Operated jointly by the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics of Taiwan.
Synthesis Telescope, seven-element interferometer	Dominion Radio Astrophysical Observatory, Penticton, British Columbia, Canada
Very Large Array (VLA)	Socorro, New Mexico, USA	Array of 27 dishes. Part of NRAO.
Very Long Baseline Array (VLBA)	Socorro, New Mexico USA (operations center)	Array system of 10 radio telescopes; dishes are located at Mauna Kea, Hawaii, Owens Valley, California, Brewster, Washington, Kitt Peak, Arizona, Pie Town, New Mexico, Los Alamos, New Mexico, Fort Davis, Texas, North Liberty, Iowa, Hancock, New Hampshire, and St. Croix, U.S. Virgin Islands.
46 metre dish	Algonquin Radio Observatory, Algonquin Park, Ontario, Canada	Most recently operated by Natural Resources Canada as a member of the International VLBI Service
26-m single-dish	Dominion Radio Astrophysical Observatory, Penticton, British Columbia, Canada	Formerly a BMEWS AN/FPS-92 antenna, likely re-located from Fort Churchill.
Two 26 m dishes	Pisgah Astronomical Research Institute (PARI), Rosman, North Carolina, USA

South America

Name	Location	Remarks
Atacama Large Millimeter Array (ALMA)	Llano de Chajnantor Observatory, Atacama Desert, Chile	54 dishes with 12-m diameter and 12 dishes with 7-m diameter, sensitive to wavelengths between radio and infrared (submillimetre astronomy). Largest and most expensive ground-based telescope in the world until LOFAR is commenced.
Atacama Pathfinder Experiment (APEX)	Atacama Desert, Chile	12 m telescope located at the Chajnantor plateau
Northeastern Space Radio Observatory	Eusébio, Brazil	14,2 m telescope
Swedish-ESO Submillimetre Telescope (SEST)	ESO in La Silla, Chile	15 m telescope. Decommissioned in 2003

Space-based

Name	Location	Remarks
HALCA (Highly Advanced Laboratory for Communications and Astronomy)	Earth orbit with an apogee altitude of 21,400 km and a perigee altitude of 560 km.
Zond 3	Russian spacecraft carrying a radio telescope

See also

• Radio telescopes
• Category:Radio telescopes
• List of observatories

External links

• List of radio telescopes outside the US
• List of radio telescopes in the US