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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
24 Apr 1997 13:16:04 yearsecs   9810964
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.23  235.95  -52.50  151.19
    1.00  -65.83  250.95  -54.97  161.29
    2.00  -66.69  265.95  -58.01  171.13
    3.00  -67.56  280.95  -61.42  180.77
    4.00  -67.25  295.95  -64.23  192.01
    5.00  -68.03  310.95  -68.39  202.22
    6.00  -68.11  325.95  -72.22  215.02
    7.00  -68.71  340.95  -76.50  229.70
    8.00  -69.59  355.95  -80.77  249.84
    9.00  -69.71   10.95  -83.21  288.56
   10.00  -69.25   25.95  -81.88  335.83
   11.00  -68.86   40.95  -78.07    5.40
   12.00  -68.73   55.95  -73.80   24.21
   13.00  -68.87   70.95  -69.81   38.94
   14.00  -69.26   85.95  -66.33   52.01
   15.00  -69.90  100.95  -63.48   64.10
   16.00  -70.52  115.95  -61.13   74.97
   17.00  -70.60  130.95  -58.87   84.44
   18.00  -70.72  145.95  -57.25   93.69
   19.00  -70.01  160.95  -55.33  102.47
   20.00  -69.16  175.95  -53.73  111.54
   21.00  -68.40  190.95  -52.72  120.92
   22.00  -67.79  205.95  -52.46  130.51
   23.00  -66.62  220.95  -52.29  140.52
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.23  235.95  -57.10  148.63
    1.00  -71.41  250.95  -59.95  157.03
    2.00  -72.21  265.95  -62.80  165.30
    3.00  -77.88  280.95  -69.69  163.59
    4.00  -79.82  295.95  -73.28  163.85
    5.00  -80.23  310.95  -75.92  166.18
    6.00  -79.43  325.95  -78.43  172.39
    7.00  -78.52  340.95  -81.34  178.77
    8.00  -78.61  355.95  -84.37  172.86
    9.00  -78.63   10.95  -86.71  144.14
   10.00  -78.40   25.95  -86.29   88.70
   11.00  -78.47   40.95  -83.28   71.73
   12.00  -78.74   55.95  -79.95   71.51
   13.00  -78.55   70.95  -76.64   72.87
   14.00  -78.36   85.95  -73.46   76.63
   15.00  -78.17  100.95  -70.53   81.61
   16.00  -77.98  115.95  -67.95   87.31
   17.00  -77.78  130.95  -65.77   93.48
   18.00  -78.89  145.95  -65.29  101.61
   19.00  -79.15  160.95  -64.50  108.41
   20.00  -78.33  175.95  -63.01  114.67
   21.00  -76.43  190.95  -60.83  121.51
   22.00  -73.47  205.95  -58.06  129.70
   23.00  -71.62  220.95  -57.05  138.86
</PRE>


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