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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>
31 Jul 1997 15:21:34 yearsecs  18285694
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.27  209.55  -45.35  133.87
    1.00  -61.14  224.55  -47.42  144.60
    2.00  -61.99  239.55  -49.92  155.23
    3.00  -62.83  254.55  -52.76  165.82
    4.00  -62.51  269.55  -54.89  177.33
    5.00  -63.71  284.55  -58.72  187.77
    6.00  -65.24  299.55  -63.28  197.63
    7.00  -66.42  314.55  -67.92  208.12
    8.00  -67.10  329.55  -72.30  220.87
    9.00  -66.44  344.55  -75.42  240.54
   10.00  -65.56  359.56  -77.60  268.18
   11.00  -65.01   14.55  -78.14  303.21
   12.00  -64.70   29.55  -76.08  336.55
   13.00  -64.64   44.55  -72.42    0.95
   14.00  -64.81   59.55  -68.52   19.16
   15.00  -65.21   74.55  -65.00   34.55
   16.00  -65.83   89.55  -61.98   48.66
   17.00  -66.65  104.55  -59.48   61.79
   18.00  -66.32  119.55  -56.28   72.41
   19.00  -64.98  134.55  -52.67   81.82
   20.00  -63.16  149.55  -49.21   91.27
   21.00  -62.56  164.55  -47.56  101.75
   22.00  -61.38  179.55  -45.79  112.24
   23.00  -60.62  194.55  -45.03  122.99
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.44  209.55  -54.24  132.54
    1.00  -70.15  224.55  -55.94  141.61
    2.00  -71.07  239.55  -58.27  150.33
    3.00  -71.73  254.55  -60.72  158.94
    4.00  -73.47  269.55  -64.43  165.75
    5.00  -74.71  284.55  -67.98  172.01
    6.00  -74.76  299.55  -70.92  179.94
    7.00  -73.97  314.55  -73.67  190.53
    8.00  -74.35  329.55  -77.45  198.33
    9.00  -74.43  344.55  -81.25  208.28
   10.00  -74.26  359.56  -85.07  225.61
   11.00  -73.94   14.55  -87.95  291.66
   12.00  -73.69   29.55  -85.35   11.02
   13.00  -73.63   44.55  -81.17   32.44
   14.00  -73.56   59.55  -76.93   44.67
   15.00  -73.15   74.55  -72.65   53.58
   16.00  -73.19   89.55  -69.02   63.25
   17.00  -72.39  104.55  -65.07   70.77
   18.00  -72.18  119.55  -62.13   79.44
   19.00  -72.30  134.55  -60.08   88.35
   20.00  -71.82  149.55  -58.02   96.69
   21.00  -70.41  164.55  -55.51  104.89
   22.00  -70.28  179.55  -54.75  114.07
   23.00  -69.09  194.55  -53.43  123.23
</PRE>


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