Loading ...
Sorry, an error occurred while loading the content.

Solar Activity Report for 8/20/02

Expand Messages
  • b1blancer_29501
    ** Aurora Watch In Effect ** The CME from 8/17 struck home on 8/18, and geomegnetic storms have been happening on and off since then. Aurora have been spotted
    Message 1 of 1 , Aug 20, 2002
    View Source
    • 0 Attachment
      ** Aurora Watch In Effect **

      The CME from 8/17 struck home on 8/18, and geomegnetic storms have
      been happening on and off since then. Aurora have been spotted over
      Europe, Canada, and the northern US, like this one photographed over
      Quebec :
      http://www.spaceweather.com/aurora/images/20aug02/Moussette1.JPG .
      More aurora are a definite possibility tonight. The cause of it all,
      sunspot region 69, continues to produce flares to beat the band,
      having fired off seven M-class events in the last 48 hours. The
      largest of the bunch was an M-5 flare that happened Tuesday. Although
      it is beginning to approach the western limb of the solar disk, more
      flares will surely be coming from this very active sunspot region.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 209
      SFI : 228
      A index : 15
      K index : 4

      Solar wind speed : 438.3 km/sec
      Solar wind density : 1.7 protons/cc
      Solar wind pressure : 0.5 nPa

      IMF : 9.1 nT
      IMF Orientation : 8.9 nT South

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Geomagnetic storms
      reaching the G1 level occurred. 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 acrivity forecast :
      Solar activity is expected to be moderate to high. An isolated major
      flare is possible from Region 69.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be quiet to unsettled. Isolated
      active periods are possible due to the activity over the past several
      days.

      Recent significant solar flare activity :
      21-Aug-2002 0141Z M1.4
      20-Aug-2002 2114Z M1.2
      20-Aug-2002 0826Z M3.4
      20-Aug-2002 0257Z M1.4
      20-Aug-2002 0140Z M5.0
      19-Aug-2002 2102Z M3.1
      19-Aug-2002 1034Z M2.0
    Your message has been successfully submitted and would be delivered to recipients shortly.