Fredericksburg Newswire

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Results 1 - 2 of 2 for "u:arrl.org" in Fredericksburg, VA

  1. The K7RA Solar UpdateRead the original story

    Apr 22, 2016 | QST

    Over the past reporting week, April 14-20, average daily sunspot numbers rose from 32 to 40, while average daily solar flux declined from 106.1 to 100.8. Average daily planetary A index declined from 12.4 to 10.9, but average daily mid-latitude A index rose slightly from 8.3 to 8.9. The mid-latitude A index uses 3-hour data from a magnetometer at Fredericksburg, Virginia, and the planetary numbers are derived from readings at Sitka, Alaska; Meanook, AB, Canada; Ottawa ON, Canada; Fredericksburg, Virginia; Hartland, UK; Wingst, Germany; Niemegk, Germany; and Canberra, Australia. An example of a magnetic observatory is the one in Alberta, Canada at Meanook.

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  2. The K7RA Solar UpdateRead the original story w/Photo

    Feb 5, 2016 | QST

    Over the recent reporting week both sunspot and solar flux averages were down a negligible amount, and geomagnetic numbers were down substantially, compared to the previous seven days. Average daily sunspot numbers declined from 57.3 to 50.6, while average daily solar flux values went from 106 to 105.4. Average daily planetary A index softened from 11.6 to 7.3, while the mid-latitude A index went from 7.6 to 5.6. The latest predicted solar flux is 125 on February 5-6, 120 on February 7, 115 on February 8, 110 on February 9-11, 105 on February 12-20, 100 on February 21 through March 2, 95 on March 3, 90 on March 4-5, 95 on March 6-8 and 105 on March 9-18.

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