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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>
26 May 1997 21:58:51 yearsecs  12607131
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.46   96.77  -49.52   42.92
    1.00  -56.75  111.77  -47.28   56.88
    2.00  -57.01  126.77  -45.28   70.05
    3.00  -57.27  141.77  -43.77   82.33
    4.00  -57.50  156.77  -42.81   94.10
    5.00  -58.14  171.77  -42.73  105.78
    6.00  -59.97  186.77  -44.30  117.29
    7.00  -61.39  201.77  -46.03  128.17
    8.00  -61.52  216.77  -47.09  138.89
    9.00  -61.16  231.77  -48.21  149.87
   10.00  -60.68  246.77  -49.64  161.22
   11.00  -60.54  261.77  -51.79  172.76
   12.00  -60.65  276.77  -54.47  184.49
   13.00  -60.99  291.77  -57.72  196.34
   14.00  -61.54  306.77  -61.62  208.42
   15.00  -62.31  321.77  -66.07  221.37
   16.00  -63.30  336.77  -70.70  236.44
   17.00  -64.51  351.77  -75.18  255.79
   18.00  -64.79    6.77  -77.66  285.01
   19.00  -63.44   21.77  -75.84  319.75
   20.00  -61.74   36.77  -70.87  345.82
   21.00  -60.50   51.77  -65.24    3.96
   22.00  -58.60   66.77  -58.71   17.24
   23.00  -57.44   81.77  -53.69   30.08
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.64   96.77  -68.63   70.87
    1.00  -75.47  111.77  -66.48   80.44
    2.00  -76.26  126.77  -64.90   89.20
    3.00  -76.72  141.77  -63.59   97.09
    4.00  -77.40  156.77  -63.01  105.00
    5.00  -78.51  171.77  -63.34  112.82
    6.00  -78.85  186.77  -63.33  119.82
    7.00  -78.24  201.77  -62.77  126.75
    8.00  -78.50  216.77  -63.53  133.66
    9.00  -78.89  231.77  -64.82  140.21
   10.00  -78.07  246.77  -65.39  147.90
   11.00  -77.47  261.77  -66.62  155.73
   12.00  -77.22  276.77  -68.57  163.13
   13.00  -76.99  291.77  -70.91  170.49
   14.00  -76.92  306.77  -73.73  177.25
   15.00  -76.71  321.77  -76.77  184.28
   16.00  -76.94  336.77  -80.22  188.59
   17.00  -77.06  351.77  -83.74  190.41
   18.00  -76.68    6.77  -87.39  188.44
   19.00  -75.87   21.77  -88.46   40.16
   20.00  -75.57   36.77  -84.28   41.86
   21.00  -74.93   51.77  -79.89   46.26
   22.00  -75.12   66.77  -76.01   55.97
   23.00  -74.47   81.77  -71.86   62.08
</PRE>


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