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<HEAD>

    <TITLE>JHU/APL Auroral Oval Boundary</TITLE>

    <META NAME="Copyright" CONTENT="Copyright 2000 Johns Hopkins University Applied Physics Laboratory"/>

    <META NAME="Date" CONTENT="21 February 2000"/>

    <META NAME="Author" CONTENT="J. P. Skura"/>


  

  

    

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<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
24 Oct 1997 11:36:40 yearsecs  25616200
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.36  251.41  -47.15  166.47
    1.00  -57.57  266.41  -49.77  178.35
    2.00  -57.73  281.41  -52.63  190.62
    3.00  -57.85  296.41  -55.77  203.30
    4.00  -57.92  311.41  -59.29  216.71
    5.00  -58.31  326.41  -63.37  231.31
    6.00  -59.82  341.41  -68.39  247.46
    7.00  -60.76  356.41  -72.22  269.24
    8.00  -61.45   11.41  -74.19  297.91
    9.00  -61.21   26.41  -72.49  328.09
   10.00  -61.10   41.41  -68.86  351.82
   11.00  -61.15   56.41  -64.83    9.95
   12.00  -61.37   71.41  -61.22   25.41
   13.00  -61.78   86.41  -58.16   39.87
   14.00  -62.38  101.41  -55.59   53.75
   15.00  -63.17  116.41  -53.54   66.84
   16.00  -64.17  131.41  -52.23   78.95
   17.00  -65.36  146.41  -51.75   90.33
   18.00  -65.65  161.41  -50.88  100.75
   19.00  -64.33  176.41  -48.85  110.64
   20.00  -62.66  191.41  -47.00  120.86
   21.00  -61.42  206.41  -46.28  131.49
   22.00  -59.54  221.41  -45.59  142.72
   23.00  -58.37  236.41  -46.07  154.38
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.53  251.41  -61.01  156.30
    1.00  -73.40  266.41  -63.88  164.06
    2.00  -74.22  281.41  -67.04  171.23
    3.00  -74.66  296.41  -70.21  178.51
    4.00  -75.35  311.41  -73.81  184.48
    5.00  -76.54  326.41  -77.73  186.94
    6.00  -76.71  341.41  -81.25  191.50
    7.00  -75.93  356.41  -84.80  203.22
    8.00  -75.91   11.41  -88.73  206.17
    9.00  -76.23   26.41  -87.19   49.02
   10.00  -75.75   41.41  -83.06   46.17
   11.00  -75.43   56.41  -78.89   51.81
   12.00  -75.24   71.41  -74.91   58.96
   13.00  -75.07   86.41  -71.22   66.40
   14.00  -75.08  101.41  -68.05   74.32
   15.00  -74.91  116.41  -65.20   81.83
   16.00  -75.23  131.41  -63.33   90.08
   17.00  -75.43  146.41  -61.89   98.04
   18.00  -75.05  161.41  -60.37  105.61
   19.00  -74.17  176.41  -58.77  113.32
   20.00  -73.85  191.41  -58.20  121.57
   21.00  -73.13  206.41  -57.74  130.02
   22.00  -73.23  221.41  -58.64  138.48
   23.00  -72.40  236.41  -59.15  147.57
</PRE>


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