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Solar Activity Report for 4/21/04

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  • David
    Activity is beginning to increase a bit from the recent doldrums. There are now four numbered sunspot regions visible, and one of them, region 596, has managed
    Message 1 of 1 , Apr 21 10:44 PM
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      Activity is beginning to increase a bit from the recent doldrums.
      There are now four numbered sunspot regions visible, and one of them,
      region 596, has managed to generate a significant flare. Look for
      another M-class flare or two from this sunspot region. There's also a
      small coronal hole that is rotating towards an Earth-pointing
      position. Expect to see some solar wind gusts from that around the
      beginning of next week. After providing a spectacular show, Comet
      Bradfield has passed out of view of the SOHO satellite.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 98
      SFI : 113
      A index : 9
      K index : 1

      Solar wind speed : 381.3 km/sec
      Solar wind density : 5.9 protons/cc
      Solar wind pressure : 1.3 nPa

      IMF : 8.4 nT
      IMF Orientation : 3.7 nT North

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Radio blackouts
      reaching the R1 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 low. Region 596 is expected to
      continue producing C-class flares with a chance for an isolated
      M-class event.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be predominately quiet to unsettled.

      Recent significant solar flare activity :
      22-Apr-2004 0219Z M1.2
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