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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>
25 Aug 1997 18:41:28 yearsecs  20457688
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.53  149.40  -50.64   91.91
    1.00  -64.94  164.40  -49.99  102.51
    2.00  -66.20  179.40  -50.65  113.08
    3.00  -67.45  194.40  -51.80  123.09
    4.00  -67.51  209.40  -52.36  132.77
    5.00  -68.67  224.40  -54.53  142.08
    6.00  -69.08  239.40  -56.44  151.48
    7.00  -69.29  254.40  -58.54  161.03
    8.00  -70.28  269.40  -61.71  169.75
    9.00  -70.45  284.40  -64.54  179.23
   10.00  -70.64  299.40  -67.81  188.83
   11.00  -69.64  314.40  -70.54  201.68
   12.00  -69.09  329.40  -73.88  215.95
   13.00  -68.87  344.40  -77.48  233.71
   14.00  -68.93  359.41  -80.87  259.41
   15.00  -69.26   14.40  -82.85  300.51
   16.00  -69.84   29.40  -81.86  346.34
   17.00  -70.46   44.40  -78.70   16.11
   18.00  -69.89   59.40  -73.96   31.11
   19.00  -68.89   74.40  -68.91   41.94
   20.00  -67.56   89.40  -63.82   51.49
   21.00  -67.00  104.40  -59.87   62.17
   22.00  -66.26  119.40  -56.24   72.24
   23.00  -64.91  134.40  -52.61   81.66
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.53  149.40  -55.73   94.97
    1.00  -70.84  164.40  -55.95  105.00
    2.00  -72.06  179.40  -56.54  114.41
    3.00  -76.24  194.40  -60.64  123.26
    4.00  -78.70  209.40  -63.44  130.18
    5.00  -79.19  224.40  -64.62  136.69
    6.00  -78.60  239.40  -65.17  143.93
    7.00  -78.12  254.40  -66.26  151.33
    8.00  -78.64  269.40  -68.56  157.05
    9.00  -78.37  284.40  -70.58  163.86
   10.00  -78.63  299.40  -73.25  168.85
   11.00  -78.39  314.40  -75.92  174.71
   12.00  -78.30  329.40  -78.91  179.01
   13.00  -77.93  344.40  -82.07  183.01
   14.00  -77.77  359.41  -85.38  179.38
   15.00  -77.26   14.40  -88.35  139.12
   16.00  -77.28   29.40  -86.22   66.11
   17.00  -76.60   44.40  -82.46   54.63
   18.00  -76.63   59.40  -78.63   59.73
   19.00  -75.96   74.40  -74.62   63.23
   20.00  -75.04   89.40  -70.53   67.90
   21.00  -73.04  104.40  -65.68   71.86
   22.00  -71.26  119.40  -61.26   78.11
   23.00  -69.91  134.40  -57.71   85.89
</PRE>


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