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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>
11 Sep 1997 21:57:52 yearsecs  21938272
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.11  100.14  -57.75   54.88
    1.00  -63.87  115.14  -54.51   66.56
    2.00  -64.75  130.14  -53.01   78.51
    3.00  -65.63  145.14  -52.15   89.62
    4.00  -65.40  160.14  -50.72   99.77
    5.00  -66.49  175.14  -51.07  110.30
    6.00  -66.70  190.14  -51.02  120.27
    7.00  -66.56  205.14  -51.22  130.12
    8.00  -67.24  220.14  -52.82  139.80
    9.00  -66.78  235.14  -53.84  149.91
   10.00  -66.38  250.14  -55.36  160.35
   11.00  -66.18  265.14  -57.43  171.01
   12.00  -66.21  280.14  -60.09  181.76
   13.00  -66.47  295.14  -63.38  192.52
   14.00  -66.95  310.14  -67.29  203.49
   15.00  -67.66  325.14  -71.64  215.27
   16.00  -68.59  340.14  -76.20  229.03
   17.00  -69.62  355.14  -80.62  248.16
   18.00  -69.49   10.14  -82.93  286.41
   19.00  -68.90   25.14  -81.62  332.87
   20.00  -67.75   40.14  -77.11    0.97
   21.00  -66.71   55.14  -71.89   18.22
   22.00  -65.67   70.14  -66.66   31.31
   23.00  -64.70   85.14  -61.81   43.10
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.98  100.14  -66.50   69.20
    1.00  -74.02  115.14  -64.59   79.67
    2.00  -74.97  130.14  -63.24   89.07
    3.00  -77.58  145.14  -64.11   99.69
    4.00  -79.79  160.14  -65.18  108.63
    5.00  -80.38  175.14  -65.13  115.31
    6.00  -79.86  190.14  -64.34  121.48
    7.00  -79.39  205.14  -64.01  128.06
    8.00  -80.03  220.14  -65.21  134.27
    9.00  -79.82  235.14  -65.95  140.78
   10.00  -80.02  250.14  -67.43  146.70
   11.00  -79.84  265.14  -68.93  152.95
   12.00  -79.65  280.14  -70.78  159.02
   13.00  -79.39  295.14  -72.93  164.98
   14.00  -79.38  310.14  -75.50  169.49
   15.00  -79.01  325.14  -78.20  174.45
   16.00  -79.02  340.14  -81.16  175.32
   17.00  -78.21  355.14  -84.35  177.61
   18.00  -78.23   10.14  -87.00  150.73
   19.00  -78.24   25.14  -86.54   88.85
   20.00  -77.44   40.14  -83.61   62.12
   21.00  -75.62   55.14  -79.31   52.19
   22.00  -74.32   70.14  -74.63   54.75
   23.00  -73.26   85.14  -70.11   60.71
</PRE>


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