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Solar Activity Report for 3/17/04

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  • David
    The Earth has moved out of the high speed solar wind stream it has been inside of the past few days. The event did trigger some nice aurora displays in the
    Message 1 of 1 , Mar 17 10:30 PM
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      The Earth has moved out of the high speed solar wind stream it has
      been inside of the past few days. The event did trigger some nice
      aurora displays in the higher latitudes. Aurora were spotted in WI
      and MN, but the majority of the sightings were in northern Europa,
      Canada, and Alaska. See this link for some great pictures :
      http://science.nasa.gov/spaceweather/aurora/gallery_01mar04.htm .
      With the solar wind speed back to normal, no more significant
      activvity is expected for the week. There is a small coronal hole
      that's in view, but it's located too far north on the solar disk to
      send much of anything out way. As I write this, I see there has just
      been an M-class flare. It looks to be a short duration event of about
      M1.7 or so. No idea where it came from yet. There are four small
      sunspot regions currently visible.

      The current solar and geeomagnetic conditions are :

      NOAA sunspot number : 394
      SFI : 110
      A index : 8
      K index : 3

      Solar wind speed : 383.9 km/sec
      Solar wind density : 3.0 protons/cc
      Solar wind pressure : 0.9 nPa

      IMF : 5.3 nT
      IMF Orientation : 2.1 nT South

      Conditions for the last 24 hours :
      Space weather for the past 24 hours has been minor. Radio blackouts
      reaching the R1 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 at low levels. Region 574 has a small
      chance of producing an isolated low-level M-class flare.

      Geomagnetic activity forecast :
      The geomagnetic field is expected to be at quiet to unsettled levels.

      Recent significant solar flare activity :
      18-Mar-2004 0620Z (estimated) M1.7 (estimated)
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