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Solar Activity Report for 6/4/02

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  • b1blancer_29501
    The solar wind speed has stayed above what usually passes for normal over the past few days, and so has the solar wind density. The result has been active
    Message 1 of 1 , Jun 4, 2002
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      The solar wind speed has stayed above what usually passes for normal
      over the past few days, and so has the solar wind density. The result
      has been active geomagnetic conditions, although they haven't been
      active enough to set off any geomagnetic storms or trigger any
      significant aurora displays. There are two fairly large sunspot
      regions visible this evening, namely 9973 and 9978. While they are
      large regions, they don't have the magnetic complexity at this time
      that would make them likely to kick off a major flare. An M-class
      flare or two is certainly a possibility, however, and with these two
      sunspot regions in an Earth-pointing position, any CME activity from
      either of them would likely be Earth-directed.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 217
      SFI : 170
      A index : 16
      K index : 4

      Solar wind speed : 431.4 km/sec
      Solar wind density : 3.6 protons/cc
      Solar wind pressure : 1.1 nPa

      IMF : 3.4 nT
      IMF Orientation : 1.7 nT South

      Conditions for the last 24 hours :
      No space weather storms were observed for the past 24 hours.

      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 mainly low, with a chance for
      isolated M-class events, and an associated slight increase in proton
      flare probabilities as the larger active regions on the visible disk
      rotate through geoeffective heliographic longitudes during the next
      three days.

      Geomagnetic activity forecast :
      Geomagnetic field activity is expected to be mainly unsettled for the
      first day of the forecast period, trending toward mostly quiet to
      unsettled conditions thereafter.

      Recent significant solar flate activity :
      02-Jun-2002 2044Z M1.1
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