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Solar Activity Report for 9/5/05

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  • David
    Between a CME impact and a persistent high-speed solar wind stream, geomagnetic storm conditions have been observed on and off over the last few days.
    Message 1 of 1 , Sep 5, 2005
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      Between a CME impact and a persistent high-speed solar wind stream,
      geomagnetic storm conditions have been observed on and off over the
      last few days. However, the last good aurora display was back on the
      24th of August, and it doesn't seem likely that there will be any more
      for the time being. There is a single sunspot region visible, but it
      doesn't look to have the ability to generate a significant flare.
      There are no coronal holes visible at the present time. Activity
      could pick up in a few days, however, as old sunspot region 798 comes
      around for another pass.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 12
      SFI : 75
      A index : 15
      K index : 3

      Solar wind speed : 448.4 km/sec
      Solar wind density : 2.2 protons/cc
      Solar wind pressure : 0.7 nPa

      IMF : 5.0 nT
      IMF Orientation : 0.8 nT North

      GOES-12 Background X-ray Flux level : A7

      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 be low on 06 Sep, but is expected to
      increase to at least moderate levels on 07 and 08 Sep as old active
      Region 798 rotates onto the visible disk.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be quiet to unsettled with
      isolated active periods. The large CME observed off the southeast limb
      this period is not expected to be geoeffective.

      Recent significant solar flare activity :
      None
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