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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 19:28:36 yearsecs  24434916
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.91  136.31  -43.97   77.79
    1.00  -57.26  151.31  -42.94   89.78
    2.00  -57.59  166.31  -42.38  101.47
    3.00  -57.91  181.31  -42.27  112.96
    4.00  -58.24  196.31  -42.72  124.24
    5.00  -58.97  211.31  -44.20  135.34
    6.00  -60.90  226.31  -47.37  145.96
    7.00  -62.49  241.31  -50.61  156.28
    8.00  -62.12  256.31  -52.38  167.58
    9.00  -61.40  271.31  -54.18  179.57
   10.00  -60.91  286.31  -56.53  191.94
   11.00  -60.75  301.31  -59.60  204.59
   12.00  -60.87  316.31  -63.34  217.96
   13.00  -61.20  331.31  -67.38  233.14
   14.00  -61.74  346.31  -71.35  251.74
   15.00  -62.49    1.31  -74.68  276.27
   16.00  -63.46   16.31  -76.33  307.76
   17.00  -64.64   31.31  -75.66  339.82
   18.00  -64.91   46.31  -72.26    3.78
   19.00  -63.55   61.31  -66.53   18.76
   20.00  -61.91   76.31  -60.68   30.81
   21.00  -60.73   91.31  -55.84   42.87
   22.00  -58.93  106.31  -50.74   54.12
   23.00  -57.83  121.31  -46.97   66.08
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.32  136.31  -56.89   86.56
    1.00  -70.28  151.31  -56.31   96.66
    2.00  -71.17  166.31  -56.18  106.31
    3.00  -71.62  181.31  -56.05  115.43
    4.00  -72.36  196.31  -56.73  124.31
    5.00  -73.71  211.31  -58.52  132.64
    6.00  -73.99  226.31  -59.73  140.86
    7.00  -72.84  241.31  -60.08  150.12
    8.00  -72.76  256.31  -61.87  158.94
    9.00  -73.08  271.31  -64.39  167.32
   10.00  -72.42  286.31  -66.52  177.24
   11.00  -72.02  301.31  -69.31  187.31
   12.00  -71.87  316.31  -72.67  197.67
   13.00  -71.78  331.31  -76.34  209.58
   14.00  -71.89  346.31  -80.24  224.35
   15.00  -71.78    1.31  -83.79  250.77
   16.00  -72.25   16.31  -86.14  306.51
   17.00  -72.56   31.31  -84.03    4.98
   18.00  -72.19   46.31  -79.65   26.19
   19.00  -71.19   61.31  -74.60   37.04
   20.00  -70.87   76.31  -70.28   48.33
   21.00  -70.05   91.31  -65.81   57.59
   22.00  -70.22  106.31  -62.67   68.26
   23.00  -69.25  121.31  -58.96   76.85
</PRE>


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