[IRCA] Discussion Of Daily Solar Space And Geomagnetic Weather
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[IRCA] Discussion Of Daily Solar Space And Geomagnetic Weather



DISCUSSION OF DAILY SOLAR SPACE AND GEOMAGNETIC WEATHER-

For Wednesday February 13, 2013

Solar activity is high as far as the emergence of the number of new sunspot groups. Currently there are 6 new un-numbered sunspot groups and 3 existing numbered sunspot groups.

Solar activity is moderate as far as the number of new solar flares, 5 occurred. The largest solar flare in magnitude was a very small in size B8.0, associated with sunspot group #11670, at that time located at approximately N17W41.

The daily solar flux index (SFI) has been above 100 for 14 consecutive days, currently at 100.3.

The daily sunspot number (SSN) has languished below 100 for 29 consecutive days, currently (NOAA) at 26.

The geomagnetic field has been active for the second day in a row with the Kp (planetary) index as high as a 4. As collected by Potsdam Germany WDC the 3 hour Kp (planetary) intervals were 33111134. As collected by NOAA/SWPC the 3 hour Kp (planetary) intervals were 22111134.

The Dst ranged between +6 and -9. So far today through 1400 UTC the Dst has been as negative as -47.

Via SOHO the maximum and minimum solar wind values were 305-381 km/s.

The maximum background x-ray value was B1.6.

For the latest solar, space & geomagnetic weather data go to http://www.wcflunatall.com/nz4o2.htm . For an explanation of how the above indices affect MF, HF and VHF radio wave propagation go to http://www.wcflunatall.com/kn4lf5.htm .

To subscribe to the NZ4O Daily MF/HF/6M Radio Wave Propagation Forecast Subscription Service go to http://www.wcflunatall.com/propagation.htm or http://www.solarcycle24.org .



73 & GUD DX,
Thomas F. Giella, NZ4O
Lakeland, FL, USA
nz4o@xxxxxxxxxxxxxxx

NZ4O Daily MF/HF/6M Radio Wave Propagation Forecast Subscription Service: http://www.solarcycle24.org NZ4O Solar Space & Geomagnetic Weather Data Dashboard: http://www.wcflunatall.com/nz4o2.htm NZ4O Solar Cycle 24 Forecast Discussion & Archive: http://www.wcflunatall.com/nz4o4.htm NZ4O 160 Meter Radio Propagation Theory Notes: http://www.wcflunatall.com/nz4o5.htm NZ4O Solar Space Weather & Geomagnetic Raw Forecast Data Links: http://www.wcflunatall.com/nz4o6.htm Solar Cycle 24 Dot Org on Facebook: https://www.facebook.com/pages/SolarCycle24org/139198369462931

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