In addition to the Energetic Ion Enhancement Event of 0640 UTC 17-I-2005
(see my last update), a moderate shock has been detected in the solar wind
speed at 0716 UTC, 17-I-2005. The plasma density change was 3.4 part/cc,
with an increase in speed of 78 km/s, and a temperature increase of
171,851.9 degrees K. The Bz went from -0.3 to -1.2 at the same moment.
This is a precursor to the beginning of geomagnetic storminess within 12
hours.
73 de Tomas, NW7US (AAR0JA/AAA0WA)
: Propagation Editor for CQ, CQ VHF, Popular Communications :
: Creator; live propagation center http://prop.hfradio.org/ :
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: 122.93W 47.67N / Brinnon, Washington USA CN87 CW/SSB/DIGI :
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