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Solar Activity Report for 1/5/04

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  • David
    Between weak CME impacts and a high speed solar wind stream, the earth has experienced on-and-off G-1 geomagnetic storm conditions over the last couple of
    Message 1 of 1 , Jan 5, 2005
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      Between weak CME impacts and a high speed solar wind stream, the earth
      has experienced on-and-off G-1 geomagnetic storm conditions over the
      last couple of days, although there has not been much to speak of in
      the way of aurora. Sunspot region 715, since unleashing it's New
      Year's Day X-class flare, has almost decayed completely. What little
      that is left of region 715 is the only numbered sunspot region visible
      at the present time. While still mildly elevated, the solar wind
      speed is expected to slowly decrease over the next few days. There
      is a small coronal hile that is rotating into an earth-pointing
      position. Look for another round of increases solar wind speed around
      the first of next week.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 15
      SFI : 88
      A index : 18
      K index : 1

      Solar wind speed : 554.1 km/sec
      Solar wind density : 0.7 protons/cc
      Solar wind pressure : 0.4 nPa

      IMF : 6.8 nT
      IMF Orientation : 2.9 nT North

      GOES-12 Background X-ray Flux Level : A5

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Geomagnetic storms
      reaching the G1 level occurred.

      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 be very low. There is a slight chance
      for a C-class flare from Region 715.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to range from quiet to minor storm
      levels. The current high speed solar wind stream is expected to
      gradually decline through 06 January. Three different CMEs over the
      past two days may cause occasional storm periods.

      Recent significant solar flare activity :
      None
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