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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>
18 Aug 1997 23:27:36 yearsecs  19870056
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.30   78.30  -64.15   38.09
    1.00  -64.63   93.30  -59.82   49.93
    2.00  -65.69  108.30  -57.72   63.39
    3.00  -66.75  123.30  -56.10   75.51
    4.00  -66.53  138.30  -53.81   85.59
    5.00  -67.40  153.30  -53.24   96.17
    6.00  -67.45  168.30  -52.33  106.07
    7.00  -67.34  183.30  -51.71  115.87
    8.00  -67.99  198.30  -52.40  125.60
    9.00  -67.92  213.30  -52.98  135.20
   10.00  -67.56  228.30  -53.85  145.03
   11.00  -67.34  243.30  -55.32  155.08
   12.00  -67.36  258.30  -57.40  165.24
   13.00  -67.61  273.30  -60.06  175.36
   14.00  -68.08  288.30  -63.32  185.29
   15.00  -68.79  303.30  -67.19  194.97
   16.00  -69.68  318.30  -71.53  204.68
   17.00  -70.51  333.30  -75.95  215.66
   18.00  -70.31  348.30  -79.59  234.04
   19.00  -69.78    3.30  -82.36  265.73
   20.00  -68.78   18.30  -82.23  312.95
   21.00  -67.81   33.30  -78.84  349.05
   22.00  -66.90   48.30  -73.99   10.49
   23.00  -66.08   63.30  -68.95   25.51
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.83   78.30  -71.44   55.13
    1.00  -73.81   93.30  -68.69   66.98
    2.00  -74.72  108.30  -66.44   77.23
    3.00  -78.66  123.30  -67.50   91.70
    4.00  -80.62  138.30  -67.58  101.01
    5.00  -80.95  153.30  -66.73  107.11
    6.00  -80.41  168.30  -65.41  112.52
    7.00  -79.94  183.30  -64.50  118.56
    8.00  -79.96  198.30  -64.48  124.99
    9.00  -79.52  213.30  -64.40  131.61
   10.00  -79.70  228.30  -65.36  137.99
   11.00  -79.50  243.30  -66.33  144.60
   12.00  -79.63  258.30  -67.96  150.64
   13.00  -79.39  273.30  -69.65  157.06
   14.00  -79.35  288.30  -71.81  162.75
   15.00  -79.08  303.30  -74.16  168.66
   16.00  -79.23  318.30  -76.94  172.10
   17.00  -78.95  333.30  -79.80  175.79
   18.00  -79.32  348.30  -82.69  171.02
   19.00  -79.01    3.30  -85.44  159.54
   20.00  -78.16   18.30  -87.39  113.64
   21.00  -76.49   33.30  -85.37   52.10
   22.00  -74.71   48.30  -80.73   42.53
   23.00  -73.39   63.30  -75.79   46.70
</PRE>


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