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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>
22 Oct 1997 13:42:20 yearsecs  25450940
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.04  220.61  -51.72  140.46
    1.00  -66.10  235.61  -53.27  150.55
    2.00  -66.91  250.61  -55.89  160.32
    3.00  -67.71  265.61  -58.85  169.95
    4.00  -67.32  280.61  -61.14  180.83
    5.00  -67.98  295.61  -64.78  190.67
    6.00  -67.93  310.61  -68.23  202.13
    7.00  -68.33  325.61  -72.31  214.21
    8.00  -69.37  340.61  -76.95  227.25
    9.00  -69.79  355.61  -80.87  248.40
   10.00  -69.42   10.61  -82.88  288.08
   11.00  -69.09   25.61  -81.75  334.54
   12.00  -69.01   40.61  -78.31    5.34
   13.00  -69.17   55.61  -74.33   25.11
   14.00  -69.59   70.61  -70.60   40.43
   15.00  -70.24   85.61  -67.35   53.83
   16.00  -70.87  100.61  -64.48   65.56
   17.00  -70.97  115.61  -61.63   75.38
   18.00  -71.10  130.61  -59.41   84.75
   19.00  -70.42  145.61  -56.98   93.27
   20.00  -69.56  160.61  -54.90  102.03
   21.00  -68.77  175.61  -53.35  111.23
   22.00  -68.15  190.61  -52.47  120.69
   23.00  -67.24  205.61  -51.91  130.36
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.63  220.61  -58.01  138.27
    1.00  -73.74  235.61  -60.31  146.21
    2.00  -74.51  250.61  -62.66  153.87
    3.00  -79.50  265.61  -68.73  153.82
    4.00  -81.23  280.61  -71.83  154.97
    5.00  -81.63  295.61  -74.05  157.55
    6.00  -81.08  310.61  -76.09  162.50
    7.00  -80.45  325.61  -78.47  166.98
    8.00  -80.22  340.61  -81.08  166.98
    9.00  -80.18  355.61  -83.54  159.05
   10.00  -79.93   10.61  -85.40  137.42
   11.00  -79.94   25.61  -85.02  103.01
   12.00  -80.13   40.61  -82.75   85.99
   13.00  -79.92   55.61  -80.02   79.05
   14.00  -79.72   70.61  -77.05   78.36
   15.00  -79.52   85.61  -74.12   80.70
   16.00  -79.32  100.61  -71.37   84.66
   17.00  -79.10  115.61  -68.91   89.56
   18.00  -80.07  130.61  -67.86   97.20
   19.00  -80.31  145.61  -66.68  103.34
   20.00  -79.60  160.61  -64.97  108.66
   21.00  -77.95  175.61  -62.64  114.35
   22.00  -75.37  190.61  -59.74  121.25
   23.00  -73.79  205.61  -58.38  129.46
</PRE>


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