Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation
Russian Academy of Sciences
( founded in 1939 )
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For viewing ionograms choose city and press for necessary year
city Kaliningrad  2006 2007 2008 2009
city Saint Petersburg  2006 2007 2008 2008

Viewing available daily variations full electronic contents of the ionosphere in city Kaliningrad
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