Tad "I am too much in the Sun" Cook, K7RA, this week reports:
The weeks seem to drag on with no sunspots in sight. An image from helioseismic holography on Tuesday shows a spot on our Sun's far side. We hope it emerges in a week or 10 days on our side and hasn't died out by then. Spots emerge from time to time, but they are all old Solar Cycle 23 spots and they seem to fade quickly without much activity.
Sunspot numbers for June 26-July 2 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0. The 10.7 cm flux was 65.4, 66.1, 65.9, 66.6, 66.7, 65.6 and 65.9 with a mean of 66. Estimated planetary A indices were 16, 8, 7, 8, 6, 5 and 3 with a mean of 7.6. Estimated mid-latitude A indices were 17, 7, 6, 7, 5, 4 and 1 with a mean of 6.7.
For more information concerning radio propagation, visit the ARRL Technical Information Service Propagation page <http://www.arrl.org/tis/info/propagation.html>. To read this week's Solar Report in its entirety, check out the W1AW Propagation Bulletin page <http://www.arrl.org/w1aw/prop/>.
| Notes | This solar update is brought to you courtesy of the American Radio Relay League's ARRL Letter. |