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Solar Activity Report for 2/20/03

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  • David <b1blancer1@earthlink.net>
    ** Aurora Watch In Effect ** The solar wind speed is still elevated this evening from coronal hole effects, and an aurora watch remains in effect. While
    Message 1 of 1 , Feb 20, 2003
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      ** Aurora Watch In Effect **

      The solar wind speed is still elevated this evening from coronal hole
      effects, and an aurora watch remains in effect. While geomagnetic
      activity hasn't been very high, it was at least enough to generate
      some aurora in Alaska, as can be seem from this gorgeous picture :
      http://science.nasa.gov/spaceweather/aurora/images
      2003/18feb03/Russell3.jpg
      . The sunspot number has increased a bit, and we may even have a
      sunspot region that could be capable or producing an M-class flare.
      Region 290 has been growing quickly and has developed a complex
      magnetic field. The high speed solar wind should last about another
      24 hours before it begins to die down.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 66
      SFI : 118
      A index : 17
      K index : 1

      Solar wind speed : 656.3 km/sec
      Solar wind density : 3.7 protons/cc
      Solar wind pressure : 2.5 nPa

      IMF : 5.1 nT
      IMF Orientation : 1.0 nT South

      Conditions for the last 24 hours :
      No space weather storms were observed for the past 24 hours.

      Forecast for the next 24 hours :
      No space weather storms are expected for the next 24 hours.

      Solar activity forecast :
      Solar activity is expected to remain low.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at unsettled to active levels
      for the next 24 hours. Conditions should calm to strictly unsettled
      levels by the end of the period.

      Recent significant solar flare activity :
      None
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