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

Solar Activity Report for 12/10/01

Expand Messages
  • b1blancer_29501
    There isn t too much to report this evening. There haven t been any significant flares for the last couple of days, although sunspot group 9727 could fire off
    Message 1 of 702 , Dec 10, 2001
    View Source
    • 0 Attachment
      There isn't too much to report this evening.
      There haven't been any significant flares for the last
      couple of days, although sunspot group 9727 could fire
      off an X-class flare at any time. Also, newly emerged
      sunspot group 9733 looks like it could be a source for
      M-class flares. A large coronal hole is approaching the
      sun's central meridian. We could see some high-speed
      solar wind gusts from it later in the week.<br><br>The
      current solar and geomagnetic conditions are
      :<br><br>NOAA sunspot number : 224<br>SFI : 219<br>A index :
      3<br>K index : 2<br><br>Solar wind speed : 323.1
      km/sec<br>Solar wind density : 4.0 protons/cc<br>Solar wind
      pressure : 0.7 nPa<br><br>IMF : 7.1 nT<br>IMF Orientation
      : 2.9 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 moderate. The geomagnetic field
      will be quiet to unsettled.<br><br>Solar activity
      forecast :<br>Solar activity is expected to be mostly
      moderate for the next three days. There is a small chance,
      however, for a major flare or a proton producing flare
      from Region 9727, especially if magnetic flux
      continues to emerge.<br><br>Geomagnetic activity forecast
      :<br>The geomagnetic field is expected to be quiet to
      unsettled during the next three days
    • 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
      View Source
      • 0 Attachment
        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
      Your message has been successfully submitted and would be delivered to recipients shortly.