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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>
23 May 1997 00:25:37 yearsecs  12270337
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.00   61.47  -68.21   21.51
    1.00  -64.27   76.47  -63.44   34.67
    2.00  -65.36   91.47  -61.03   49.52
    3.00  -66.45  106.47  -58.88   62.98
    4.00  -66.27  121.47  -55.90   73.74
    5.00  -67.20  136.47  -54.71   84.89
    6.00  -67.30  151.47  -53.29   94.91
    7.00  -67.38  166.47  -52.35  104.84
    8.00  -67.80  181.47  -52.20  114.76
    9.00  -67.47  196.47  -51.86  124.43
   10.00  -67.07  211.47  -52.05  134.19
   11.00  -66.89  226.47  -53.04  144.09
   12.00  -66.93  241.47  -54.72  154.10
   13.00  -67.19  256.47  -56.98  164.13
   14.00  -67.68  271.47  -59.80  174.02
   15.00  -68.39  286.47  -63.21  183.59
   16.00  -69.32  301.47  -67.21  192.70
   17.00  -70.28  316.47  -71.54  201.83
   18.00  -70.04  331.47  -75.14  215.32
   19.00  -69.51  346.47  -78.51  234.43
   20.00  -68.48    1.47  -80.80  265.53
   21.00  -67.47   16.47  -80.85  307.47
   22.00  -66.52   31.47  -77.79  342.84
   23.00  -65.70   46.47  -73.14    5.51
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.95   61.47  -74.35   36.40
    1.00  -71.96   76.47  -71.19   51.40
    2.00  -72.93   91.47  -68.36   63.83
    3.00  -76.96  106.47  -68.64   80.99
    4.00  -79.18  121.47  -68.18   92.00
    5.00  -79.34  136.47  -66.60   98.27
    6.00  -78.90  151.47  -64.87  104.03
    7.00  -78.41  166.47  -63.47  110.33
    8.00  -78.91  181.47  -63.47  117.43
    9.00  -78.67  196.47  -63.14  124.25
   10.00  -78.94  211.47  -63.75  131.04
   11.00  -78.65  226.47  -64.22  138.02
   12.00  -78.72  241.47  -65.46  144.73
   13.00  -78.46  256.47  -66.79  151.77
   14.00  -78.44  271.47  -68.70  158.32
   15.00  -78.12  286.47  -70.75  165.33
   16.00  -78.33  301.47  -73.47  170.56
   17.00  -77.98  316.47  -76.17  177.05
   18.00  -78.23  331.47  -79.33  179.73
   19.00  -77.81  346.47  -82.53  183.89
   20.00  -76.77    1.47  -86.09  191.98
   21.00  -74.80   16.47  -88.92  310.75
   22.00  -72.96   31.47  -84.31    8.43
   23.00  -71.51   46.47  -79.05   23.21
</PRE>


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