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The K7RA Solar Update

ARRL

Well-Known Member
Nov 15, 2008
10,596
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Average daily sunspot numbers dropped from 19.3 last week to 10.7 in the current reporting week, July 28 through August 3. Average daily solar flux declined from 82.5 to 72.1.

Geomagnetic indices were more active this week, with average daily planetary A index increasing from 8.7 to 13, and mid-latitude A index rising from 8.9 to 11.9.

Sunspot numbers were low all week, and on Wednesday August 3 ...

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