Henry County Amateur Radio Club: The K7RA Solar Update - Henry County Amateur Radio Club

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

The K7RA Solar Update

#1 User is offline   Robert W9MKA Icon

  • Administrator
  • Icon
  • Group: Administrators
  • Posts: 198
  • Joined: 20-October 09
  • LocationMt. Summit

Posted 30 July 2010 - 12:25 PM

Sunspot activity increased again this week, but on Tuesday and Wednesday -- July 27-28 -- a stiff solar wind increased Earth’s geomagnetic activity, which is a negative for HF propagation. Sunspot numbers for July 22-28 were 39, 45, 41, 39, 39, 15 and 31, with a mean of 35.6. The 10.7 cm flux was 87.7, 86.4, 85.2, 85.2, 84.4, 82.6 and 85.3, with a mean of 85.3. The estimated planetary A indices...



View the full article
0
Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users