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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 11:55:00 yearsecs   8942100
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.33  253.97  -53.14  165.08
    1.00  -64.06  268.97  -56.18  175.63
    2.00  -65.03  283.97  -59.79  185.90
    3.00  -66.00  298.97  -63.83  196.11
    4.00  -65.80  313.97  -67.25  208.67
    5.00  -66.83  328.97  -71.92  220.88
    6.00  -66.99  343.97  -75.77  238.38
    7.00  -66.86  358.97  -78.80  264.27
    8.00  -67.51   13.97  -80.93  300.44
    9.00  -67.11   28.97  -78.97  338.68
   10.00  -66.70   43.97  -74.94    4.18
   11.00  -66.51   58.97  -70.61   21.95
   12.00  -66.54   73.97  -66.61   36.54
   13.00  -66.80   88.97  -63.14   49.81
   14.00  -67.28  103.97  -60.25   62.24
   15.00  -67.99  118.97  -58.08   73.84
   16.00  -68.92  133.97  -56.77   84.71
   17.00  -69.92  148.97  -56.16   94.97
   18.00  -69.74  163.97  -54.87  104.22
   19.00  -69.17  178.97  -53.65  113.45
   20.00  -68.08  193.97  -52.42  122.83
   21.00  -67.05  208.97  -51.89  132.56
   22.00  -65.55  223.97  -51.55  142.87
   23.00  -63.98  238.97  -51.70  153.90
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.33  253.97  -57.64  161.53
    1.00  -69.41  268.97  -60.89  170.46
    2.00  -70.42  283.97  -64.43  179.00
    3.00  -74.20  298.97  -70.41  180.99
    4.00  -76.63  313.97  -75.06  181.32
    5.00  -77.53  328.97  -78.63  182.97
    6.00  -76.92  343.97  -81.89  190.67
    7.00  -76.40  358.97  -85.49  197.94
    8.00  -77.17   13.97  -88.41  143.77
    9.00  -76.95   28.97  -86.42   61.10
   10.00  -77.26   43.97  -82.66   60.28
   11.00  -77.02   58.97  -78.88   61.76
   12.00  -77.05   73.97  -75.32   67.32
   13.00  -76.83   88.97  -71.90   72.83
   14.00  -76.90  103.97  -69.04   79.71
   15.00  -76.57  118.97  -66.29   85.97
   16.00  -76.75  133.97  -64.46   93.38
   17.00  -75.99  148.97  -62.22   99.89
   18.00  -76.10  163.97  -61.27  107.61
   19.00  -75.86  178.97  -60.41  115.24
   20.00  -74.74  193.97  -59.11  123.01
   21.00  -72.45  208.97  -57.17  131.61
   22.00  -70.55  223.97  -56.27  141.09
   23.00  -68.98  238.97  -56.29  151.27
</PRE>


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