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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>
14 Apr 1997 17:01:02 yearsecs   8960462
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.87  177.20  -50.38  111.53
    1.00  -65.53  192.20  -49.87  121.56
    2.00  -66.43  207.20  -51.20  131.49
    3.00  -67.33  222.20  -53.08  141.12
    4.00  -66.99  237.20  -54.27  151.19
    5.00  -67.71  252.20  -56.83  160.82
    6.00  -67.66  267.20  -59.06  171.09
    7.00  -67.72  282.20  -61.79  181.46
    8.00  -68.56  297.20  -65.62  190.92
    9.00  -68.62  312.20  -69.18  202.08
   10.00  -68.34  327.20  -72.72  215.70
   11.00  -68.14  342.20  -76.33  232.95
   12.00  -68.17  357.20  -79.74  257.18
   13.00  -68.43   12.20  -81.90  294.50
   14.00  -68.91   27.20  -81.29  338.23
   15.00  -69.62   42.20  -78.50    9.82
   16.00  -70.40   57.20  -75.05   30.58
   17.00  -70.90   72.20  -71.38   45.23
   18.00  -70.88   87.20  -67.55   56.37
   19.00  -70.30  102.20  -63.59   65.63
   20.00  -69.39  117.20  -59.80   74.33
   21.00  -68.52  132.20  -56.60   83.20
   22.00  -67.74  147.20  -54.12   92.37
   23.00  -66.87  162.20  -52.08  101.80
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.64  177.20  -58.21  113.59
    1.00  -74.65  192.20  -59.01  122.05
    2.00  -75.46  207.20  -60.10  129.99
    3.00  -79.67  222.20  -64.96  135.39
    4.00  -81.43  237.20  -67.59  139.75
    5.00  -81.79  252.20  -69.11  144.55
    6.00  -81.29  267.20  -70.24  150.61
    7.00  -80.69  282.20  -71.72  156.97
    8.00  -80.94  297.20  -73.99  160.39
    9.00  -80.90  312.20  -76.30  163.51
   10.00  -80.96  327.20  -78.74  164.24
   11.00  -80.94  342.20  -81.14  161.66
   12.00  -80.97  357.20  -83.22  151.78
   13.00  -80.71   12.20  -84.66  131.62
   14.00  -80.54   27.20  -84.31  103.90
   15.00  -80.28   42.20  -82.41   86.05
   16.00  -80.21   57.20  -79.70   80.64
   17.00  -79.95   72.20  -76.80   79.67
   18.00  -80.51   87.20  -74.28   84.82
   19.00  -80.42  102.20  -71.83   88.41
   20.00  -79.61  117.20  -69.10   91.28
   21.00  -77.96  132.20  -65.79   94.32
   22.00  -75.85  147.20  -62.23   98.85
   23.00  -74.43  162.20  -59.69  105.64
</PRE>


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