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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>
07 Dec 1997 14:29:24 yearsecs  29428164
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.35  207.33  -50.15  131.71
    1.00  -64.70  222.33  -50.60  142.01
    2.00  -65.75  237.33  -53.15  151.89
    3.00  -66.81  252.33  -56.04  161.57
    4.00  -66.59  267.33  -58.15  172.20
    5.00  -67.45  282.33  -61.59  181.89
    6.00  -67.50  297.33  -64.75  192.66
    7.00  -67.41  312.33  -68.21  204.48
    8.00  -68.12  327.33  -72.58  216.33
    9.00  -67.90  342.33  -76.16  233.79
   10.00  -67.53  357.33  -79.16  259.23
   11.00  -67.34   12.33  -80.72  296.02
   12.00  -67.38   27.33  -79.56  335.47
   13.00  -67.64   42.33  -76.41    4.05
   14.00  -68.12   57.33  -72.79   24.03
   15.00  -68.83   72.33  -69.40   40.03
   16.00  -69.71   87.33  -66.44   53.99
   17.00  -70.53  102.33  -63.79   66.10
   18.00  -70.34  117.33  -60.71   75.62
   19.00  -69.80  132.33  -57.88   84.50
   20.00  -68.82  147.33  -55.20   93.18
   21.00  -67.85  162.33  -53.06  102.32
   22.00  -66.96  177.33  -51.47  111.88
   23.00  -66.14  192.33  -50.48  121.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.35  207.33  -57.00  130.69
    1.00  -73.35  222.33  -58.82  138.95
    2.00  -74.27  237.33  -60.97  146.78
    3.00  -78.33  252.33  -66.21  150.09
    4.00  -80.34  267.33  -69.57  152.74
    5.00  -80.67  282.33  -71.73  157.05
    6.00  -80.11  297.33  -73.64  163.32
    7.00  -79.58  312.33  -75.96  169.21
    8.00  -79.85  327.33  -78.73  170.28
    9.00  -79.73  342.33  -81.49  169.90
   10.00  -79.87  357.33  -83.98  159.80
   11.00  -79.61   12.33  -85.80  134.53
   12.00  -79.69   27.33  -85.05   98.10
   13.00  -79.42   42.33  -82.73   79.33
   14.00  -79.35   57.33  -79.69   75.35
   15.00  -79.05   72.33  -76.52   75.50
   16.00  -79.17   87.33  -73.63   79.93
   17.00  -78.88  102.33  -70.79   84.04
   18.00  -79.25  117.33  -68.79   90.55
   19.00  -78.93  132.33  -66.66   95.90
   20.00  -77.98  147.33  -64.30  101.15
   21.00  -76.19  162.33  -61.45  106.83
   22.00  -74.32  177.33  -58.89  113.87
   23.00  -72.95  192.33  -57.29  122.03
</PRE>


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