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Solar Activity Report for 10/9/01

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  • b1blancer_29501
    Things are fairly quiet this evening. There is an elevation in the solar wind density, and I suspect we are receiving solar wind gusts from a coronal hole that
    Message 1 of 702 , Oct 7, 2001
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      Things are fairly quiet this evening. There is an
      elevation in the solar wind density, and I suspect we are
      receiving solar wind gusts from a coronal hole that crossed
      the sun's central meridian a few days ago. There is
      another small coronal hole forming in the northeastern
      limb of the solar disk, which will send some more
      solar wind gusts our way in a couple of
      days.<br><br>The current solar and geomagnetic conditions are
      :<br><br>NOAA sunspot number : 154<br>SFI : 173<br>A index :
      2<br>K index : 2<br><br>Solar wind speed : 347.3
      km/sec<br>Solar wind density : 7.6 protons/cc<br>Solar wind
      pressure : 1.5 nPa<br><br>IMF : 5.4 nT<br>IMF Orientation
      : 1.2 nT South<br><br>Conditions for the last 24
      hours :<br>Solar activity was low. The geomagnetic
      field was quiet. <br><br>Forecast for the next 24 hours
      :<br>Solar activity will be low. The geomagnetic field will
      be quiet to unsettled.<br><br>Solar activity
      forecast :<br>Solar activity is expected to be at mostly
      low levels. Isolated M-class events are
      possible.<br><br>Geomagmagnetic activity forecast :<br>The geomagnetic field is
      expected to be mostly quiet to unsettled. Active
      conditions are possible on the second day of the forecast
      due to a small recurrent coronal hole and its
      associated high speed stream<br><br>Recent significant solar
      flare activity :<br>06-Oct-2001 0525Z M2.8
    • b1blancer_29501
      On Feb 28th, the Interplanetary Magnetic Field swung to a strong south-pointing orientation. That, coupled with an elevated solar wind speed and density,
      Message 702 of 702 , Mar 1, 2002
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        On Feb 28th, the Interplanetary Magnetic Field
        swung to a strong south-pointing orientation. That,
        coupled with an elevated solar wind speed and density,
        triggered a G-1 class geomagnetic storm. The result was
        some high latitude aurora. See this link for a
        photgraph of aurora observed over Quebec :
        <a href=http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg target=new>http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg</a> . As of right now, there are 3 sunspot regions,
        namely 9839, 9842, and 9845, that appear to be capable
        of producing M-class flares. Regions 9839 and 9842
        are close to rotating out of view over the western
        limb of the solar disk. Sunspot region 9845, however,
        is close to the sun's central meridian. A rather
        large coronal hole is also approaching the sun's
        central meridian, and coming into an Earth-pointing
        position. High speed colar wind gusts are likely around the
        first of next week.<br><br>The current solar and
        geomagnetic conditions are :<br><br>NOAA sunspot number :
        153<br>SFI : 188<br>A index : 10<br>K index : 1<br><br>Solar
        wind speed : 372.3 km/sec<br>Solar wind density : 4.4
        protons/cc<br>Solar wind pressure : 1.1 nPa<br><br>IMF : 8.4
        nT<br>IMF Orientation : 0.7 nT North<br><br>Conditions for
        the last 24 hours : <br>Solar activity was low. The
        geomagnetic field was quiet to unsettled. Stratwarm Alert
        exists Friday.<br><br>Forecast for the next 24 hours
        :<br>Solar activity will be low to moderate. The geomagnetic
        field will be quiet to unsettled.<br><br>Solar Activity
        Forecast :<br>Solar activity is expected to be low to
        moderate for the next three days. Region 9845 is a
        possible source for isolated M-class
        flares.<br><br>Geomagnetic activity forecast :<br>Geomagnetic field activity
        is expected to be mainly quiet to unsettled, until
        the onset of high speed stream effects from a
        recurrent coronal hole begin to develop by day three of the
        forecast period. Isolated active conditions are
        anticipated thereafter.<br><br>Recent significant solar flare
        activity :<br>None
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