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Solar Activity Report for 2/7/05

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  • David
    ** G-1 Geomagnetic Storm In Progress ** ** Aurora Watch In Effect ** The Earth has moved inside of a high-speed coronal hole solar wind stream, and the solar
    Message 1 of 1 , Feb 7, 2005
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      ** G-1 Geomagnetic Storm In Progress **
      ** Aurora Watch In Effect **

      The Earth has moved inside of a high-speed coronal hole solar wind
      stream, and the solar wind speed has topped the 650 km/sec mark. G-1
      geomagnetic storm conditions haave beeen observed within the last 24
      hours, and an aurora watch is in effect. Skywatchers in the higher
      latitudes should keep an eye out for aurora. Sunspot region 720,
      which causes a lot of activity last time around, has returned, now
      carrying the designation of region 732. So far it has been quiet, and
      the background X-ray flux doesn't showw anything major happening, at
      least not yet. What may be more interesting is another large sunspot
      region that should be following close behind region 732. Stay tuned
      over the next few days to see what that sunspot region looks like.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 62
      SFI : 103
      A index : 29
      K index : 5

      Solar wind speed : 659.6 km/sec
      Solar wind density : 0.6 protons/cc
      Solar wind pressure : 0.6 nPa

      IMF : 9.0 nT
      IMF Orientation : 3.1 nT South

      GOES-12 Background X-ray Flux level : B2

      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 :
      Space weather for the next 24 hours is expected to be minor.
      Geomagnetic storms reaching the G1 level are expected.

      Solar activity forecast :
      Solar activity is expected to be at low levels. Regions 732 and 733
      are both capable of producing further C-class flare activity.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at unsettled to active levels
      with isolated minor storm conditions possible through 8 February.
      Unsettled levels with isolated active periods should dominate 9 and 10
      February as the geoeffective high speed coronal stream wanes.

      Recent significant solar flare activity :
      None
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