Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences (ISTP SB RAS)

The Radio-Astrophysical Observatory (RAO) is in the Tunka Valley that separates two ranges of the East Sayan, 220 km from Irkutsk (51°45′33″ N, 102°13′08″ E). The Observatory site survey (https://goo.gl/maps/895pyjucMxabSPKw9) was determined by minimizing technogenous noise. At the moment, the main instruments are a radioheliograph and a suite of integral flux spectro-polarimeters. The RAO staff equals about 40, the operation time being 00–10 UT.

	Mission: studying solar corona heating, investigating solar flares, measuring coronal magnetic fields, monitoring coronal mass ejections, all-weather multiwave monitoring of solar activity, multiwave mapping of the Sun in the microwave range, monitoring the solar integral flux at a high spectral and temporal resolutions within a wide frequency range.
	Instruments: Siberian Solar Radio Telescope (SSRT) (https://badary.iszf.irk.ru/ssrt.php); Siberian Radioheliograph (https://badary.iszf.irk.ru/srhCorrPlot.php); Suite of Integral Flux Spectro-Polarimeters (https://badary.iszf.irk.ru/spectropolarimeter_2_24.php).

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