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Solar Activity Report for 8/7/04

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  • David
    The Earth, as predicted, did experience a brief solar wind gust on the 7th. It didn t set of widespread geomagnetic storm conditions, but it was at least
    Message 1 of 1 , Aug 7, 2004
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      The Earth, as predicted, did experience a brief solar wind gust on the
      7th. It didn't set of widespread geomagnetic storm conditions, but it
      was at least enough to trigger aurora in a few locations, as can be
      seen in this picture taken in British Columbia :
      http://www.spaceweather.com/aurora/images2004/07aug04/Takasaka1.jpg .
      Old sunspot region 649 has re-emerged over the eastern limb of the
      solar disk. If you remember, this sunspot region fired off X-class
      flares during it's last trip around. This time, however, it looks
      smaller, and seems to have decayed substantially. Of the three
      sunspot regions visible, none appear to have the ability to generate a
      significant flare at this time.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 71
      SFI : 95
      A index : 19
      K index : 2

      Solar wind speed : 469.7 km/sec
      Solar wind density : 0.6 protons/cc
      Solar wind pressure : 0.2 nPa

      IMF : 6.5 nT
      IMF Orientation : 1.3 nT South

      GOES-12 Background X-Ray flux level : B1

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Geomagnetic storms
      reaching the G1 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 very low to low. Regions 655 and 656
      could produce an isolated C-class event.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be quiet to unsettled with
      isolated periods of active conditions.

      Recent significant solar flare activity :
      None
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