The IRAM 30-m millimeter radio telescope on Pico Veleta, Spain

Details The IRAM 30-m millimeter radio telescope on Pico Veleta, Spain The IRAM 30-m millimeter radio telescope on Pico Veleta, Spain

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175..319b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. 319-326. Research supported by the Stiftung Volks

Astronomy and Astrophysics

Astrophysics

83

Millimeter Waves, Radio Telescopes, Reflecting Telescopes, Accuracy, Control Systems Design, Molecular Spectra, Shape Control, Thermal Insulation

Scientific paper

In the Spanish Sierra Nevada near 2900 m altitude, the new 30-m telescope for millimeter astronomy is now operational. The authors describe the original design features, which resulted in the high reflector and pointing accuracy, necessary for operation near 1 mm wavelength. The open air telescope is thermally insulated and the temperature of critical sections is controlled to better than 1 K day and night. A reflector surface error of about 80 μm and a pointing and tracking accuracy of about 1arcsec in wind velocities of 12 m s-1 and under stable atmospheric conditions have been reached. These can be further improved. Receivers are available for the 3, 2, and 1.2 mm atmospheric windows. First tests at 0.87 mm have confirmed the high quality of this instrument.

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