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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 Oct 1997 23:57:28 yearsecs  25401448
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.29   70.44  -66.16   30.89
    1.00  -65.48   85.44  -62.59   44.64
    2.00  -66.45  100.44  -60.15   58.36
    3.00  -67.42  115.44  -58.13   70.73
    4.00  -67.22  130.44  -55.51   80.85
    5.00  -68.11  145.44  -54.66   91.47
    6.00  -68.34  160.44  -53.67  101.32
    7.00  -69.08  175.44  -53.66  111.20
    8.00  -70.64  190.44  -54.96  120.77
    9.00  -71.67  205.44  -56.26  129.69
   10.00  -70.70  220.44  -56.14  138.89
   11.00  -69.92  235.44  -56.76  148.48
   12.00  -69.48  250.44  -58.17  158.31
   13.00  -69.37  265.44  -60.27  168.18
   14.00  -69.56  280.44  -63.03  177.88
   15.00  -70.04  295.44  -66.46  187.23
   16.00  -70.53  310.44  -70.27  196.73
   17.00  -70.52  325.44  -73.96  208.48
   18.00  -70.54  340.44  -77.80  223.05
   19.00  -69.75  355.44  -80.80  248.22
   20.00  -68.78   10.44  -82.19  288.72
   21.00  -67.86   25.44  -80.42  331.74
   22.00  -67.29   40.44  -76.53    0.30
   23.00  -66.43   55.44  -71.50   17.95
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -76.43   70.44  -75.83   63.29
    1.00  -77.52   85.44  -73.08   73.56
    2.00  -78.35  100.44  -70.74   81.88
    3.00  -82.27  115.44  -71.28   97.32
    4.00  -83.71  130.44  -70.88  104.75
    5.00  -84.17  145.44  -70.22  109.49
    6.00  -83.98  160.44  -69.29  113.27
    7.00  -83.78  175.44  -68.60  117.52
    8.00  -83.56  190.44  -68.18  122.13
    9.00  -83.29  205.44  -68.02  127.04
   10.00  -82.90  220.44  -68.06  132.27
   11.00  -82.72  235.44  -68.64  137.47
   12.00  -82.68  250.44  -69.68  142.34
   13.00  -82.37  265.44  -70.82  147.54
   14.00  -82.06  280.44  -72.29  152.52
   15.00  -81.76  295.44  -74.08  157.05
   16.00  -81.47  310.44  -76.15  160.77
   17.00  -81.18  325.44  -78.45  163.08
   18.00  -81.86  340.44  -80.55  156.55
   19.00  -81.95  355.44  -82.30  147.44
   20.00  -81.40   10.44  -83.88  132.81
   21.00  -80.16   25.44  -84.84  104.66
   22.00  -78.21   40.44  -83.45   69.51
   23.00  -77.13   55.44  -79.78   61.30
</PRE>


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