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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>
20 Apr 1997 22:31:23 yearsecs   9498683
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.84   91.24  -59.42   47.03
    1.00  -63.75  106.24  -56.09   59.40
    2.00  -64.56  121.24  -54.17   71.87
    3.00  -65.37  136.24  -52.86   83.30
    4.00  -65.14  151.24  -51.10   93.52
    5.00  -66.27  166.24  -51.24  104.27
    6.00  -66.51  181.24  -50.91  114.37
    7.00  -66.37  196.24  -50.75  124.27
    8.00  -67.05  211.24  -52.02  134.04
    9.00  -66.56  226.24  -52.72  144.05
   10.00  -66.17  241.24  -54.00  154.36
   11.00  -65.96  256.24  -55.85  164.90
   12.00  -65.99  271.24  -58.28  175.55
   13.00  -66.25  286.24  -61.31  186.18
   14.00  -66.73  301.24  -64.98  196.79
   15.00  -67.44  316.24  -69.21  207.70
   16.00  -68.37  331.24  -73.78  219.64
   17.00  -69.43  346.24  -78.38  234.40
   18.00  -69.33    1.24  -81.58  262.23
   19.00  -68.71   16.24  -82.24  306.59
   20.00  -67.53   31.24  -78.98  344.29
   21.00  -66.48   46.24  -74.08    6.82
   22.00  -65.41   61.24  -68.75   22.06
   23.00  -64.41   76.24  -63.66   34.69
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.89   91.24  -66.60   59.22
    1.00  -72.00  106.24  -64.37   71.13
    2.00  -73.01  121.24  -62.65   81.56
    3.00  -75.55  136.24  -63.06   92.96
    4.00  -78.08  151.24  -64.09  103.06
    5.00  -78.77  166.24  -63.84  110.47
    6.00  -78.10  181.24  -62.64  117.07
    7.00  -77.46  196.24  -61.90  124.17
    8.00  -78.19  211.24  -62.98  131.22
    9.00  -77.85  226.24  -63.43  138.48
   10.00  -77.94  241.24  -64.73  145.48
   11.00  -77.75  256.24  -66.17  152.71
   12.00  -77.62  271.24  -68.04  159.83
   13.00  -77.42  286.24  -70.24  166.97
   14.00  -77.51  301.24  -72.98  173.07
   15.00  -77.15  316.24  -75.78  180.29
   16.00  -77.19  331.24  -79.04  185.47
   17.00  -76.19  346.24  -82.29  196.92
   18.00  -76.22    1.24  -86.07  200.58
   19.00  -76.43   16.24  -89.31  121.87
   20.00  -75.63   31.24  -85.82   39.21
   21.00  -73.64   46.24  -80.70   34.11
   22.00  -72.36   61.24  -75.58   41.14
   23.00  -71.23   76.24  -70.62   49.24
</PRE>


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