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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
19 Apr 1997 05:41:30 yearsecs   9351690
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.85  346.08  -69.41  253.90
    1.00  -60.53    1.08  -72.59  277.93
    2.00  -61.22   16.08  -73.78  307.74
    3.00  -61.90   31.08  -72.40  336.79
    4.00  -60.98   46.08  -67.44  357.77
    5.00  -62.00   61.08  -64.67   16.09
    6.00  -63.13   76.08  -62.21   32.45
    7.00  -63.75   91.08  -59.37   46.78
    8.00  -64.26  106.08  -56.67   59.89
    9.00  -63.61  121.08  -53.20   70.85
   10.00  -63.19  136.08  -50.62   81.61
   11.00  -63.00  151.08  -48.92   92.28
   12.00  -63.03  166.08  -47.96  103.01
   13.00  -63.28  181.08  -47.68  113.68
   14.00  -63.76  196.08  -48.17  124.14
   15.00  -64.46  211.08  -49.51  134.37
   16.00  -65.39  226.08  -51.60  144.35
   17.00  -64.90  241.08  -52.81  154.93
   18.00  -64.52  256.08  -54.53  165.82
   19.00  -64.83  271.08  -57.22  176.52
   20.00  -64.02  286.08  -59.30  188.63
   21.00  -61.99  301.08  -60.69  203.00
   22.00  -61.59  316.08  -63.96  216.83
   23.00  -59.91  331.08  -66.08  234.59
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.20  346.08  -74.63  245.48
    1.00  -65.74    1.08  -78.01  271.02
    2.00  -66.62   16.08  -79.90  306.56
    3.00  -67.23   31.08  -78.68  343.36
    4.00  -69.25   46.08  -77.08   14.03
    5.00  -71.17   61.08  -74.64   36.76
    6.00  -71.48   76.08  -70.88   49.81
    7.00  -70.97   91.08  -66.71   59.28
    8.00  -71.93  106.08  -64.33   70.90
    9.00  -72.21  121.08  -61.91   80.38
   10.00  -72.12  136.08  -59.72   89.06
   11.00  -71.87  151.08  -57.93   97.63
   12.00  -71.66  166.08  -56.69  106.39
   13.00  -71.73  181.08  -56.17  115.33
   14.00  -71.70  196.08  -56.06  124.18
   15.00  -71.23  211.08  -56.07  133.11
   16.00  -71.24  226.08  -57.10  142.08
   17.00  -69.90  241.08  -57.37  152.04
   18.00  -69.52  256.08  -58.99  161.92
   19.00  -69.83  271.08  -61.60  171.37
   20.00  -69.02  286.08  -63.67  182.44
   21.00  -66.99  301.08  -65.16  196.28
   22.00  -66.59  316.08  -68.45  209.15
   23.00  -64.91  331.08  -70.78  226.95
</PRE>


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