HOURLY Flux - A / K LOG

This log is UPDATED every HOUR - clears at 08:00 GMT

 

Solar Flux: Affects 20 -15 -10 Daytimes 160 - 80 and 40 somewhat at Night

The 10.7 cm (2800 MHz) radio flux is the amount of solar noise that is emitted by the sun at 10.7 cm wavelengths. The solar flux is measured and reported at approximately 1800 GMT daily by the Penticton Radio Observatory in British Columbia, Canada. Values are not corrected for variations resulting from the eccentric orbit of the Earth around the Sun.

The solar flux is used as a basic indicator of solar activity. It can vary from values below 50 to values in excess of 300 (representing very low solar activity and high to very high solar activity respectively). Values in excess of 200 occur typical during the peak of the solar cycles.

The solar flux is closely related to the amount of ionization taking place at F2 layer heights (heights sensitive to long-distance radio communication). High solar flux values generally provide good ionization for long-distance communications at higher than normal frequencies. Low solar flux values can restrict the band of frequencies which are usable for long distance communications.

A Index and K Index: Affects 160 - 80 at Night Very Little on 20 -15 -10 Daytime

The Earth's magnetic field is continuously monitored by a network of magnetometers. These readings are converted into the A and K index values.

The K index is computed once every three hours ( eight times a day @ 0100, 0400, 0700, 1000, 1300, 1600, 1900, and 2200 GMT ) and the values can range from 0 to 9, with 0 being inactive, and 9 representing an extreme severe storm condition. The values are quadi-logarithmic.

The A index is linear, and is computed from the eight previous K index values. It ranges from 0 (quiet) to 400 (severe storm).

Generally, propagation conditions are best when the K index is 3 or lower. the A index is 15 or lower.Besides causing auroral activity, high geomagnetic field conditions can affect the electrons in the ionosphere, reducing the maximum usable frequency (MUF).

 

SOLAR FLUX

50 - 159 = POOR

160 - 200 = SO SO

201 - 300 = GREAT

K INDEX - TODAY (1X)

9 - 4 = STORM

3 - 0 = CALM

A INDEX - LAST 24 HOURS (8X)

400 - 16 = STORM

15 - 0 = CALM


Monday, June 26, 2017  08:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  09:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  10:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  11:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  12:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  13:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  14:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  15:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  16:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  17:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  18:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 11

Monday, June 26, 2017  19:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  20:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  21:00 GMT    This is the Solar Flux : 74    This is the K index : 1    This is the A index : 11

Monday, June 26, 2017  22:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 8

Monday, June 26, 2017  23:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 8

Monday, June 26, 2017  00:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 8

Tuesday, June 27, 2017  01:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

Tuesday, June 27, 2017  02:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

Tuesday, June 27, 2017  03:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

Tuesday, June 27, 2017  04:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

Tuesday, June 27, 2017  05:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

Tuesday, June 27, 2017  06:00 GMT    This is the Solar Flux : 74    This is the K index : 2    This is the A index : 7

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