Sardinia Radio Telescope
Sardinia Radio Telescope the day of the inauguration
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
References
- 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.
- 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.
External links
- "Sardinia Radio Telescope". Home page of the telescope.
- "Sardinia Radio Telescope: Project Status". July 2007. Retrieved 2008-10-23.