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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>
14 Sep 1997 04:19:08 yearsecs  22133948
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.00    5.48  -73.49  286.03
    1.00  -61.63   20.48  -73.87  316.75
    2.00  -62.26   35.48  -71.83  344.35
    3.00  -62.88   50.48  -68.66    5.70
    4.00  -62.18   65.48  -63.74   20.83
    5.00  -63.32   80.48  -61.36   36.78
    6.00  -64.12   95.48  -58.78   51.04
    7.00  -64.47  110.48  -56.02   63.61
    8.00  -65.04  125.48  -53.99   75.42
    9.00  -64.40  140.48  -51.37   85.58
   10.00  -63.99  155.48  -49.60   95.89
   11.00  -63.80  170.48  -48.53  106.36
   12.00  -63.83  185.48  -48.17  116.83
   13.00  -64.09  200.48  -48.62  127.16
   14.00  -64.58  215.48  -49.92  137.35
   15.00  -65.28  230.48  -51.94  147.40
   16.00  -66.21  245.48  -54.58  157.25
   17.00  -66.12  260.48  -56.64  167.77
   18.00  -65.75  275.48  -58.82  178.86
   19.00  -66.29  290.48  -62.22  189.28
   20.00  -65.22  305.48  -64.66  202.42
   21.00  -63.24  320.48  -66.60  218.74
   22.00  -62.57  335.48  -69.70  236.05
   23.00  -61.12  350.48  -71.57  258.94
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.18    5.48  -79.02  280.09
    1.00  -67.02   20.48  -80.08  318.19
    2.00  -67.97   35.48  -78.51  353.59
    3.00  -68.80   50.48  -75.40   18.21
    4.00  -71.52   65.48  -73.73   41.68
    5.00  -72.50   80.48  -70.62   55.66
    6.00  -72.78   95.48  -67.33   65.97
    7.00  -72.22  110.48  -63.76   74.08
    8.00  -73.38  125.48  -62.36   84.46
    9.00  -73.44  140.48  -60.53   92.90
   10.00  -73.48  155.48  -59.20  101.31
   11.00  -73.30  170.48  -58.12  109.68
   12.00  -73.04  185.48  -57.42  118.14
   13.00  -73.05  200.48  -57.49  126.67
   14.00  -73.14  215.48  -58.17  135.16
   15.00  -72.69  230.48  -58.85  143.94
   16.00  -72.63  245.48  -60.37  152.72
   17.00  -71.12  260.48  -61.04  163.19
   18.00  -70.75  275.48  -63.15  173.06
   19.00  -71.29  290.48  -66.44  181.81
   20.00  -70.48  305.48  -69.06  193.33
   21.00  -68.24  320.48  -70.94  209.75
   22.00  -67.57  335.48  -74.19  226.25
   23.00  -66.12  350.48  -76.46  250.33
</PRE>


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