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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 May 1997 21:47:00 yearsecs  11224020
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.38  100.29  -58.00   55.37
    1.00  -64.00  115.29  -54.62   66.82
    2.00  -64.94  130.29  -53.19   78.78
    3.00  -65.88  145.29  -52.40   89.88
    4.00  -65.68  160.29  -50.98   99.99
    5.00  -66.72  175.29  -51.29  110.46
    6.00  -66.90  190.29  -51.22  120.39
    7.00  -66.75  205.29  -51.42  130.20
    8.00  -67.43  220.29  -53.01  139.85
    9.00  -67.01  235.29  -54.07  149.90
   10.00  -66.60  250.29  -55.57  160.31
   11.00  -66.40  265.29  -57.65  170.92
   12.00  -66.44  280.29  -60.31  181.62
   13.00  -66.69  295.29  -63.60  192.32
   14.00  -67.18  310.29  -67.51  203.23
   15.00  -67.88  325.29  -71.87  214.92
   16.00  -68.81  340.29  -76.42  228.57
   17.00  -69.82  355.29  -80.83  247.67
   18.00  -69.66   10.29  -83.11  286.54
   19.00  -69.08   25.29  -81.80  333.68
   20.00  -67.97   40.29  -77.31    1.79
   21.00  -66.94   55.29  -72.10   18.92
   22.00  -65.92   70.29  -66.90   31.95
   23.00  -65.00   85.29  -62.10   43.72
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.17  100.29  -64.83   65.88
    1.00  -72.24  115.29  -62.90   76.99
    2.00  -73.22  130.29  -61.54   86.96
    3.00  -76.40  145.29  -62.95   98.46
    4.00  -78.75  160.29  -64.14  107.79
    5.00  -79.27  175.29  -64.00  114.81
    6.00  -78.60  190.29  -63.05  121.40
    7.00  -77.98  205.29  -62.59  128.46
    8.00  -78.52  220.29  -63.73  135.27
    9.00  -78.24  235.29  -64.49  142.41
   10.00  -78.54  250.29  -66.17  148.90
   11.00  -78.42  265.29  -67.85  155.70
   12.00  -78.34  280.29  -69.92  162.25
   13.00  -78.10  295.29  -72.24  168.93
   14.00  -78.14  310.29  -75.02  174.35
   15.00  -77.79  325.29  -77.93  180.59
   16.00  -77.89  340.29  -81.17  183.11
   17.00  -77.18  355.29  -84.57  188.71
   18.00  -77.32   10.29  -87.79  163.69
   19.00  -77.25   25.29  -87.16   72.69
   20.00  -76.36   40.29  -83.50   51.41
   21.00  -74.40   55.29  -78.64   45.64
   22.00  -72.86   70.29  -73.53   49.74
   23.00  -71.60   85.29  -68.67   56.68
</PRE>


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