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## Methodical Results of Sun Observations on RATAN-600 Radio Telescope in Tracking (Scanning) Mode

Transactions of IAA RAS, issue 47, 53–57 (2018)

Keywords: RATAN-600, solar observations, tracking mode.

### Abstract

We report the methods of the tracking and scanning modes realization on the “South sector + Periscope Mirror” antenna system of the RATAN-600 radio telescope with the main mirror shaped as a parabolic or circular cylinder, and the methodical results of the solar observations in these modes. Reducing the aperture of the system, one get a long focus antenna system with a much wider field of view than the full aperture system would have. The numerical simulations and the experiment show that the aperture reduced down to 100-150 m makes it possible to track the Sun over the angular range up to ±3º from the optical axis of the system set in the meridian or some azimuth. The possible time of tracking or scanning the Sun with a reduced aperture and fixed main mirror is 12–24 minutes, and the total time of tracking the Sun is more than 3 hours a day in the azimuth range ±30º for the wavelengths from 2 to 30 cm.

### Citation

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V. B. Khaikin, M. K. Lebedev, N. N. Bursov, A. A. Storozhenko, N. E. Ovchinnikova, V. M. Bogod. Methodical Results of Sun Observations on RATAN-600 Radio Telescope in Tracking (Scanning) Mode // Transactions of IAA RAS. — 2018. — Issue 47. — P. 53–57. @article{khaikin2018, abstract = {We report the methods of the tracking and scanning modes realization on the “South sector + Periscope Mirror” antenna system of the RATAN-600 radio telescope with the main mirror shaped as a parabolic or circular cylinder, and the methodical results of the solar observations in these modes. Reducing the aperture of the system, one get a long focus antenna system with a much wider field of view than the full aperture system would have. The numerical simulations and the experiment show that the aperture reduced down to 100-150 m makes it possible to track the Sun over the angular range up to ±3º from the optical axis of the system set in the meridian or some azimuth. The possible time of tracking or scanning the Sun with a reduced aperture and fixed main mirror is 12–24 minutes, and the total time of tracking the Sun is more than 3 hours a day in the azimuth range ±30º for the wavelengths from 2 to 30 cm.}, author = {V.~B. Khaikin and M.~K. Lebedev and N.~N. Bursov and A.~A. Storozhenko and N.~E. Ovchinnikova and V.~M. Bogod}, doi = {10.32876/ApplAstron.47.53-57}, issue = {47}, journal = {Transactions of IAA RAS}, keyword = {RATAN-600, solar observations, tracking mode}, pages = {53--57}, title = {Methodical Results of Sun Observations on RATAN-600 Radio Telescope in Tracking (Scanning) Mode}, url = {http://iaaras.ru/en/library/paper/1893/}, year = {2018} } TY - JOUR TI - Methodical Results of Sun Observations on RATAN-600 Radio Telescope in Tracking (Scanning) Mode AU - Khaikin, V. B. AU - Lebedev, M. K. AU - Bursov, N. N. AU - Storozhenko, A. A. AU - Ovchinnikova, N. E. AU - Bogod, V. M. PY - 2018 T2 - Transactions of IAA RAS IS - 47 SP - 53 AB - We report the methods of the tracking and scanning modes realization on the “South sector + Periscope Mirror” antenna system of the RATAN-600 radio telescope with the main mirror shaped as a parabolic or circular cylinder, and the methodical results of the solar observations in these modes. Reducing the aperture of the system, one get a long focus antenna system with a much wider field of view than the full aperture system would have. The numerical simulations and the experiment show that the aperture reduced down to 100-150 m makes it possible to track the Sun over the angular range up to ±3º from the optical axis of the system set in the meridian or some azimuth. The possible time of tracking or scanning the Sun with a reduced aperture and fixed main mirror is 12–24 minutes, and the total time of tracking the Sun is more than 3 hours a day in the azimuth range ±30º for the wavelengths from 2 to 30 cm. DO - 10.32876/ApplAstron.47.53-57 UR - http://iaaras.ru/en/library/paper/1893/ ER -