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Solar Activity Report for 10/8/02

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  • David
    ** Aurora Watch In Effect ** The Earth is heading for an encounter with a coronal hole generated high speed solar wind stream, and active geomagnetic
    Message 1 of 1 , Oct 8, 2002
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      ** Aurora Watch In Effect **

      The Earth is heading for an encounter with a coronal hole generated
      high speed solar wind stream, and active geomagnetic conditions are a
      definite possibility. The meeting should take place tomorrow.
      Skywatchers in the higher latitudes should keep an eye out for aurora
      around local midnight. Sunspot region 139 has been responsible for
      two M-class flares in the last 48 hours, and more flare activity is
      possible from this sunspot region.

      The current solar and geomagnetic conditions are :

      NOAA suspot number : 128
      SFI : 165
      A index : 28
      K index : 1

      Solar wind speed : 421.9 km/sec
      Solar wind density : 3.2 protons/cc
      Solar wind pressure : 1.0 nPa

      IMF : 7.9 nT
      IMF Orientation : 5.8 nT South

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been moderate. Geomagnetic
      storms reaching the G2 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 low to moderate. Region 139 is the
      most likely source of M-flares.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be mostly unsettled to active.
      Nighttime substorms are possible.

      Recent significant solar flare activity :
      06-Oct-2002 1155Z M1.0
      06-Oct-2002 0451Z M2.4
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