Sardinia Radio Telescope

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Sardinia Radio Telescope
Innaugurazione SRT.JPG
Location(s) San Basilio, Sardinia, Italy Edit this at Wikidata
Coordinates 39°29′35″N 9°14′43″E / 39.493044°N 9.245197°E / 39.493044; 9.245197Coordinates: 39°29′35″N 9°14′43″E / 39.493044°N 9.245197°E / 39.493044; 9.245197 Edit this at Wikidata
Organization INAF Edit this on Wikidata
Altitude 600 m (2,000 ft) Edit this at Wikidata
Telescope style Radio telescope Edit this on Wikidata
Diameter 64 m (210 ft 0 in) Edit this at Wikidata
Website Edit this at Wikidata
Sardinia Radio Telescope is located in Italy
Sardinia Radio Telescope
Location of Sardinia Radio Telescope

The Sardinia Radio Telescope (SRT) is a large, fully steerable radio telescope completed in 2011, near San Basilio, province of Cagliari in Sardinia, Italy. It is a collaboration among the Istituto di Radioastronomia di Bologna, the Cagliari Observatory (Cagliari) and the Arcetri Astrophysical Observatory (Florence).

The main technical points are:

  • A 64-meter primary mirror with a 7.9 meter secondary;
  • A Gregorian configuration with shaped surfaces
  • An active surface: Primary mirror adjustable with 1116 actuators;
  • 0.3–115 GHz continuous frequency coverage
  • Three main focal points: Primary, Gregorian, and Beam Wave Guide
  • Primary surface accuracy: ≈150 μm RMS
  • Maximum antenna efficiency: ≈60 %
  • Pointing accuracy (RMS): 2–5 arcsec


  • Gavril Grueff; Giovanni Alvito; Roberto Ambrosini; Pietro Bolli; et al. (2004-10-11). "Sardinia Radio Telescope: the new Italian project". Proceedings of the SPIE. SPIE. 5489 (773): 773. doi:10.1117/12.550332.[permanent dead link]
  • Cortes-Medellin, G. (2002). "The 64 m Sardinia radio telescope optics design". Antennas and Propagation Society International Symposium, 2002. IEEE. 4. pp. 126–139. doi:10.1109/APS.2002.1016944.

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