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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>
10 Apr 1997 14:24:45 yearsecs   8605485
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.95  220.08  -50.64  140.40
    1.00  -64.27  235.08  -51.51  151.02
    2.00  -65.34  250.08  -54.41  160.99
    3.00  -66.42  265.08  -57.63  170.76
    4.00  -66.24  280.08  -60.10  181.69
    5.00  -67.19  295.08  -63.99  191.46
    6.00  -67.31  310.08  -67.58  202.82
    7.00  -67.15  325.08  -71.21  216.30
    8.00  -67.58  340.08  -75.34  231.74
    9.00  -67.47  355.08  -78.67  255.04
   10.00  -67.06   10.08  -80.32  290.28
   11.00  -66.87   25.08  -79.35  329.49
   12.00  -66.90   40.08  -76.19  358.84
   13.00  -67.16   55.08  -72.40   19.20
   14.00  -67.64   70.08  -68.80   35.33
   15.00  -68.35   85.08  -65.66   49.52
   16.00  -69.28  100.08  -63.07   62.46
   17.00  -70.24  115.08  -61.00   74.04
   18.00  -70.01  130.08  -58.39   83.29
   19.00  -69.47  145.08  -56.08   92.22
   20.00  -68.43  160.08  -53.79  101.13
   21.00  -67.42  175.08  -52.01  110.51
   22.00  -66.46  190.08  -50.78  120.22
   23.00  -65.64  205.08  -50.32  130.17
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.67  220.08  -59.95  137.12
    1.00  -75.64  235.08  -62.03  144.52
    2.00  -76.57  250.08  -64.42  151.29
    3.00  -79.79  265.08  -68.89  153.03
    4.00  -81.65  280.08  -72.01  153.62
    5.00  -82.05  295.08  -74.14  155.94
    6.00  -81.69  310.08  -76.14  159.79
    7.00  -81.45  325.08  -78.38  161.64
    8.00  -81.67  340.08  -80.57  157.83
    9.00  -81.34  355.08  -82.71  151.36
   10.00  -81.41   10.08  -83.86  133.31
   11.00  -81.07   25.08  -83.99  109.66
   12.00  -81.01   40.08  -82.36   92.70
   13.00  -80.70   55.08  -80.02   84.00
   14.00  -80.60   70.08  -77.32   82.64
   15.00  -80.26   85.08  -74.54   83.38
   16.00  -80.34  100.08  -72.10   87.52
   17.00  -79.93  115.08  -69.63   91.25
   18.00  -80.07  130.08  -67.92   97.00
   19.00  -79.72  145.08  -66.16  102.31
   20.00  -78.92  160.08  -64.32  107.84
   21.00  -77.38  175.08  -62.07  113.84
   22.00  -76.00  190.08  -60.39  121.03
   23.00  -74.97  205.08  -59.54  128.96
</PRE>


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