-
02/04/2011 | The K7RA Solar Update
The past week had one 0 sunspot day -- Thursday, January 27. Even though the activity came right back, the average daily sunspot number for the week fell more than 12 points to 20.1, and the average daily solar flux declined 2.7 points to 80.8. After the
Learn More -
01/28/2011 | The K7RA Solar Update
The average daily sunspot numbers rose over the past week (ending January 26) by 11.3 points to 32.6, compared to the previous week, while the average daily solar flux rose 3.1 points to 83.5. The planetary A index average was down 2 points to 2.9, and mi
Learn More -
01/21/2011 | The K7RA Solar Update
The average daily sunspot numbers dropped from 50 (on the reporting week ending January 5) to 38 on January 6-12, and now 21.3 on January 13-19. Sunspot numbers for January 13-19 were 14, 11, 11, 15, 36, 34 and 28, with a mean of 21.3. The 10.7 cm flux wa
Learn More -
01/14/2011 | The K7RA Solar Update
The average daily sunspot numbers declined 12 points to 38 during the past week, compared to the previous week, December 30 through January 5, when the average was exactly 50. Sunspot numbers for January 6-12 were 28, 52, 52, 50, 35, 26 and 23, with a mea
Learn More -
01/07/2011 | The K7RA Solar Update
The average daily sunspot numbers were up nearly 24 points this week to 50, while the average daily solar flux rose more than 9 points to 89.5. The lagging three month average of daily sunspot numbers was down 3.5 points from last month’s average of the p
Learn More -
12/31/2010 | The K7RA Solar Update
There were no sunspots for a full week, December 18-24. Christmas Day saw a return to sunspot activity, so the last two of those spotless days were in the Thursday through Wednesday reporting period in this bulletin, December 23-29. The average daily suns
Learn More -
12/24/2010 | The K7RA Solar Update
Sunspots disappeared this week. Five days with no spots is the longest since May 9-19, 2010, when we saw 11 days in a row in which the Sun was spotless. Since then, there has only been the occasional day or two which was spot-free. April 2010 saw 13 conse
Learn More -
12/17/2010 | The K7RA Solar Update
The average daily sunspot numbers for this week declined more than 7 points to 27.6 from the previous week, December 2-8. The solar flux was about the same as last week, with the average up less than a point. Sunspot numbers for December 9-15 were 22, 33,
Learn More
Search for Amateur Radio News
