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

Solar Activity Report for 7/7/03

Expand Messages
  • David
    Today has been pretty quiet on the solar and geomagnetic fronts. The solar wind speed has dropped off into the 500 km/sec range as the Earth has exited the
    Message 1 of 1 , Jul 7, 2003
    View Source
    • 0 Attachment
      Today has been pretty quiet on the solar and geomagnetic fronts. The
      solar wind speed has dropped off into the 500 km/sec range as the
      Earth has exited the latest coronal hole solar wind stream
      encountered. Sunspot region 375 is still visible, and is quite large.
      It spans more than ten Earth diameters end to end. However, it has
      been relatively quiet, and there haven't been any significant flares
      in the last 24 hours. Tha background X-ray flux is holding steady.
      There is a small coronal hole that is rotating into an Earth-pointing
      position, and we could see some high speed solar wind from it on or
      about the 11th.

      The current solar and geomagnetic conditions are :

      NOAA sunspot number : 140
      SFI : 133
      A index : 17
      K index : 2

      Solar wind speed : 480.7 km/sec
      Solar wind density : 0.7 protons/cc
      Solar wind pressure : 0.2 nPa

      IMF : 6.1 nT
      IMF Orientation : 4.0 nT North

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

      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 at low to moderate levels. Region 397
      continues to exhibit the potential to produce isolated M-class flares.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at predominantly unsettled to
      isolated active levels throughout the period.

      Recent significant solar flare activity :
      06-Jul-2003 0032Z M2.3
    Your message has been successfully submitted and would be delivered to recipients shortly.