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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>
10 Oct 1997 21:10:06 yearsecs  24441006
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.81  111.45  -47.41   56.66
    1.00  -57.17  126.45  -45.49   69.90
    2.00  -57.51  141.45  -44.06   82.21
    3.00  -57.86  156.45  -43.21   93.99
    4.00  -58.20  171.45  -42.80  105.56
    5.00  -58.96  186.45  -43.29  116.95
    6.00  -60.91  201.45  -45.54  127.97
    7.00  -62.53  216.45  -48.03  138.45
    8.00  -62.19  231.45  -49.15  149.26
    9.00  -61.51  246.45  -50.38  160.56
   10.00  -61.05  261.45  -52.20  172.18
   11.00  -60.90  276.45  -54.64  184.03
   12.00  -60.97  291.45  -57.64  196.09
   13.00  -61.26  306.45  -61.29  208.47
   14.00  -61.77  321.45  -65.48  221.81
   15.00  -62.50  336.45  -69.86  237.34
   16.00  -63.44  351.45  -74.07  257.11
   17.00  -64.61    6.45  -77.45  284.50
   18.00  -64.86   21.45  -77.52  319.53
   19.00  -63.49   36.45  -73.10  347.26
   20.00  -61.83   51.45  -67.06    5.32
   21.00  -60.64   66.45  -61.52   19.57
   22.00  -58.82   81.45  -55.58   31.43
   23.00  -57.72   96.45  -51.15   43.97
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.34  111.45  -61.77   71.82
    1.00  -71.27  126.45  -60.17   82.43
    2.00  -72.16  141.45  -59.15   92.23
    3.00  -72.61  156.45  -58.26  101.27
    4.00  -73.35  171.45  -58.13  110.25
    5.00  -74.66  186.45  -59.05  118.93
    6.00  -74.96  201.45  -59.43  127.02
    7.00  -73.92  216.45  -58.99  135.43
    8.00  -73.89  231.45  -60.06  143.78
    9.00  -74.23  246.45  -61.92  151.85
   10.00  -73.67  261.45  -63.38  160.87
   11.00  -73.36  276.45  -65.49  169.88
   12.00  -73.15  291.45  -68.10  178.95
   13.00  -73.01  306.45  -71.18  188.26
   14.00  -73.06  321.45  -74.72  197.74
   15.00  -72.92  336.45  -78.37  209.55
   16.00  -73.32  351.45  -82.47  222.50
   17.00  -73.57    6.45  -86.33  250.23
   18.00  -73.18   21.45  -86.70  337.11
   19.00  -72.20   36.45  -82.39   12.59
   20.00  -71.86   51.45  -77.93   30.26
   21.00  -71.06   66.45  -73.07   41.04
   22.00  -71.18   81.45  -69.25   52.95
   23.00  -70.23   96.45  -64.79   61.57
</PRE>


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