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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 May 1997 20:58:44 yearsecs  13035524
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.21  111.44  -53.43   61.89
    1.00  -63.38  126.44  -52.12   74.67
    2.00  -64.42  141.44  -51.29   86.27
    3.00  -66.92  156.44  -52.51   97.99
    4.00  -66.67  171.44  -51.39  107.89
    5.00  -67.50  186.44  -51.84  117.94
    6.00  -67.54  201.44  -52.04  127.63
    7.00  -67.47  216.44  -52.76  137.33
    8.00  -68.21  231.44  -54.77  146.80
    9.00  -68.02  246.44  -56.34  156.75
   10.00  -67.70  261.44  -58.18  167.10
   11.00  -67.51  276.44  -60.53  177.67
   12.00  -67.54  291.44  -63.50  188.29
   13.00  -67.80  306.44  -67.11  199.08
   14.00  -68.28  321.44  -71.21  210.51
   15.00  -68.99  336.44  -75.59  223.56
   16.00  -69.86  351.44  -79.98  240.72
   17.00  -70.44    6.44  -83.49  272.01
   18.00  -70.45   21.44  -83.81  325.12
   19.00  -69.90   36.44  -80.30    1.40
   20.00  -68.94   51.44  -75.27   19.73
   21.00  -67.50   66.44  -69.64   31.64
   22.00  -65.03   81.44  -63.07   40.41
   23.00  -63.19   96.44  -57.55   50.57
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.21  111.44  -58.67   67.62
    1.00  -68.38  126.44  -57.27   79.28
    2.00  -69.42  141.44  -56.40   89.89
    3.00  -74.75  156.44  -60.40  102.74
    4.00  -77.27  171.44  -62.09  112.01
    5.00  -77.61  186.44  -62.06  119.43
    6.00  -76.74  201.44  -61.23  126.80
    7.00  -75.84  216.44  -60.88  134.69
    8.00  -76.16  231.44  -62.21  142.25
    9.00  -75.85  246.44  -63.37  150.24
   10.00  -75.93  261.44  -65.29  157.87
   11.00  -75.74  276.44  -67.38  165.84
   12.00  -75.99  291.44  -70.18  172.79
   13.00  -75.76  306.44  -72.99  180.73
   14.00  -75.76  321.44  -76.26  188.03
   15.00  -75.49  336.44  -79.67  196.88
   16.00  -75.71  351.44  -83.48  203.18
   17.00  -75.44    6.44  -87.34  217.92
   18.00  -76.10   21.44  -88.53   49.97
   19.00  -75.83   36.44  -84.44   44.55
   20.00  -74.71   51.44  -79.87   44.73
   21.00  -72.50   66.44  -74.28   45.72
   22.00  -70.03   81.44  -68.20   50.23
   23.00  -68.19   96.44  -62.81   58.01
</PRE>


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