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RATAN-600The world's largest radio telescope with a 600-m reflector© Дарья Сокол, пресс-служба МФТИ -
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RATAN-600The world's largest radio telescope with a 600-m reflector© В. Малдер, 2019
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RATAN-600The world's largest radio telescope with a 600-m reflector© E. Азанов, 1987
Telescope
RATAN-600 is a radio telescope with a variable-profile circular antenna of 600 m in diameter, the largest Russian telescope, which performs mass measurements of galactic and extragalactic radio sources at frequencies of 1.2, 2.3, 4.7, 8.2, 11.2, and 22.3 GHz quasi-simultaneously (within 1-3 min). The main advantages of the instrument are high brightness-temperature sensitivity and multifrequency observations.
Daily Sun observations
The figure shows multiwave radio emission scans - graphs of the distribution of intensity I and circular polarization V across the solar disk, obtained with RATAN-600. The color scale on the right corresponds to 80 wavelengths in the range from 1.65 cm to 10 cm. The upper left hand corner shows the date and time of obtaining the radio data (available on the page with a detailed information). Polarized emission V characterizes the magnetic-field strength in solar active regions.
RATAN-600 multi-frequency catalogue of blazars
The online multi-frequency catalogue of blazars summarises RATAN-600 measurements of more than 1600 blazars.
Scientific results
Archive of materials
We present the multiwavelength variability of the BL Lac object PKS 0735+178, associated with the high-energy neutrino event IC211208A. The light curves cover the radio (1-230 GHz), optical, and Fermi-LAT γ-ray bands over a ∼30 years time-scale.
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We report large day-timescale variations in the orientation of the southeast--northwest jet in the prototype microquasar GRS 1915+105.
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We carry out the multi-frequency monitoring of the Galactic microquasars with the RATAN-600 radio telescope on 10 January, 6 and 26 April, and now on 6 June 2026 we detected the giant flares from the X-ray and Gamma-ray binary, microquasar Cygnus X-3 at frequencies 1.45 - 30 GHz (see ATel #17742).
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Call for Proposals
Observational proposals are accepted via an interactive form twice a year: from February 1 to March 10 and from August 1 to September 10.