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Solar Activity Report for 4/9/02

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  • b1blancer_29501
    There are several sunspot groups visible this evening, and the sunspot number remains above the 200 mark. Sunspot region 9893 is the best developed of the
    Message 1 of 1 , Apr 9 7:51 PM
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      There are several sunspot groups visible this evening, and the sunspot
      number remains above the 200 mark. Sunspot region 9893 is the best
      developed of the bunch, and looks to have the potential of producing
      an X-class flare. There were a pair of M-class flares today, one of
      them coming from sunspot region 9899. The origin of the other M-class
      flare is uncertain.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 212
      SFI : 205
      A index : 2
      K index : 1

      Solar wind speed : 295.9 km/sec
      Solar wind density : 4.6 protons/cc
      Solar wind pressure : 0.6 nPa

      IMF : 5.2 nT
      IMF Orientation : 4.9 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 :
      Space weather for the next 24 hours is expected to be minor. Radio
      blackouts reaching the R1 level are expected.

      Solar activity forecast :
      Solar activity is expected to be predominantly low to moderate,
      although Region 9893 and 9897 (S02W17) both possess the potential to
      produce an isolated major flare.

      Geomagnetic activity forecast :
      Geomagnetic field activity is expected to be at quiet to unsettled
      levels with isolated active periods possible on days one and two of
      the forecast period. Day three should return to predominantly quiet
      conditions. The greater than 2 Mev electron flux should be slightly
      enhanced through the first day of the period.

      Recent significant solar flare activity :
      09-Apr-2002 1302Z M1.1
      09-Apr-2002 0042Z M2.1
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