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11/01/2013 | The K7RA Solar Update
It has been a lively couple of weeks!
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04/09/2010 | The K7RA Solar Update
A strong geomagnetic storm on Monday and Tuesday -- April 5-6 -- was the biggest since 2006, at least in terms of high planetary A index. On those days, the mid-latitude A index was 28 and 22 and the planetary A index was 49 and 46. This was caused by a m
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