Solar Research at Metsähovi Radio Observatory
Metsähovi Radio Observatory (MRO) conducts solar observations with two radio telescopes (13,7 m and 1,8 m). The larger one is used for observing the Sun at both 37 GHz (average frequency) and 87 GHz with most observations being done at 37 GHz. The large telescope is actively used for solar observations during the summer months (from May to September) with about 30 observation days accumulating per year. The large telescope can be used for making Solar maps of the whole surface of the Sun or from e.g. smaller active areas (e.g. polar regions, sunspots). The telescope can also be used for tracking observations, where a single spot on the Sun's limb is tracked typically for 6 huors. For more information about solar mapping and tracking see Information on solar mapping and tracking at Metsähovi.
The smaller 1,8-meter antenna is used for continuous tracking of the total radiation intensity of the Sun at an average frequency of 11.2 GHz. The small antenna tracks the Sun every day of the year except for maintenance breaks.
For more information about solar radio astronomy in Metsähovi, see the links below:
General information on the project
Information on solar mapping and tracking at Metsähovi
Solar publications, see Metsähovi Publications
Metsähovi observations catalogue 1993-2000, not updated anymore