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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>
21 May 1997 00:50:18 yearsecs  12099018
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.58   55.71  -64.28    8.43
    1.00  -61.84   70.71  -61.98   25.42
    2.00  -62.63   85.71  -59.32   40.43
    3.00  -67.47  100.71  -61.14   60.08
    4.00  -67.32  115.71  -57.98   70.80
    5.00  -68.31  130.71  -56.58   82.02
    6.00  -68.72  145.71  -55.25   92.07
    7.00  -69.74  160.71  -55.07  102.18
    8.00  -69.80  175.71  -54.38  111.57
    9.00  -69.63  190.71  -53.95  120.86
   10.00  -69.05  205.71  -53.68  130.20
   11.00  -68.57  220.71  -54.12  139.77
   12.00  -68.37  235.71  -55.37  149.49
   13.00  -68.46  250.71  -57.29  159.27
   14.00  -68.81  265.71  -59.83  168.93
   15.00  -69.44  280.71  -62.98  178.23
   16.00  -70.05  295.71  -66.53  187.39
   17.00  -70.11  310.71  -70.01  197.84
   18.00  -70.21  325.71  -73.80  209.54
   19.00  -69.49  340.71  -77.06  226.99
   20.00  -68.69  355.71  -79.91  252.61
   21.00  -67.93   10.71  -81.30  290.82
   22.00  -64.88   25.71  -76.97  328.92
   23.00  -62.47   40.71  -70.78  352.42
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.58   55.71  -70.46   16.47
    1.00  -66.84   70.71  -67.79   34.18
    2.00  -67.63   85.71  -64.78   48.64
    3.00  -74.59  100.71  -67.78   72.89
    4.00  -76.92  115.71  -67.08   85.09
    5.00  -77.27  130.71  -65.34   92.60
    6.00  -76.20  145.71  -62.71   98.45
    7.00  -75.19  160.71  -60.55  105.33
    8.00  -75.49  175.71  -60.13  113.40
    9.00  -75.67  190.71  -60.05  121.32
   10.00  -75.52  205.71  -60.11  129.19
   11.00  -75.73  220.71  -61.02  136.96
   12.00  -76.17  235.71  -62.59  144.42
   13.00  -76.04  250.71  -64.03  152.23
   14.00  -75.91  265.71  -65.87  160.08
   15.00  -75.77  280.71  -68.11  167.94
   16.00  -75.62  295.71  -70.74  175.80
   17.00  -75.46  310.71  -73.72  183.79
   18.00  -76.79  325.71  -77.67  185.50
   19.00  -77.04  340.71  -81.15  189.02
   20.00  -75.97  355.71  -84.63  202.49
   21.00  -73.60   10.71  -87.17  268.56
   22.00  -69.88   25.71  -82.60  336.86
   23.00  -67.47   40.71  -76.66    1.17
</PRE>


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