[W4HM Spaceweather] W4HM Discussion Of Daily Solar Space And Geomagnetic Weather

Thomas F Giella W4HM w4hm at tampabay.rr.com
Sat Mar 2 10:16:00 EST 2013


For Friday March 01, 2013

Solar activity is low as far as the emergence of the number of new sunspot 
groups. Currently there are 4 new un-numbered sunspot groups and 5 existing 
numbered sunspot groups.

Solar activity is low as far as the number of solar flares, 4 occurred. The 
largest solar flare in magnitude was a very small in size B6.8, which 
occurred at approximately S17W35 and associated with sunspot group #11682.

The daily solar flux index (SFI) has been at or above 100 for 3 consecutive 
days, currently (NOAA) at 112.0.

The daily sunspot number (SSN) has languished below 100 for 9 consecutive 
days, currently (NOAA) at 88.

The geomagnetic field has been active for 2 consecutive days with the Kp 
(planetary) index reaching a 5, which is minor geomagnetic storming 
conditions. As collected by Potsdam Germany WDC the 3 hour Kp (planetary) 
intervals were 44455444. As collected by NOAA/SWPC the 3 hour Kp (planetary) 
intervals were 44354444. The source of the geomagnetic storming is a 
geo-effective (Earth facing) coronal hole, #556.

Via Kyoto U. the Dst ranged between -16 and -59.

Via SOHO and sollen.info the maximum and minimum solar wind values were 

Via NOAA the maximum background x-ray solar flux value was B2.7.

Via NOAA the energetic proton flux was < (10+0).

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/nz4o5.htm .

To subscribe to the W4HM 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, W4HM
Lakeland, FL, USA
w4hm at tampabay.rr.com

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