Holographic measurement on Medicina radio telescope using artificial satellites at 11 GHz

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Telescopes, Methods: Numerical

Scientific paper

The surface profile of the 32-m parabolic radiotelescope located in Medicina has been measured with the Misell phase-recovery technique using commercial geostationary satellites at 11 GHz and checked on H2O astronomical masers at 22 GHz as reference sources. The telescope is a parabolic reflector antenna operating in Cassegrain configuration and designed for observations up to the frequency of 23 GHz. The accuracy obtained with this technique is about 0.2 mm and the spatial resolution is 0.7 m.

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