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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>
25 Feb 1997 23:15:49 yearsecs   4835749
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.91   87.50  -61.47   45.46
    1.00  -64.75  102.50  -57.93   57.64
    2.00  -65.79  117.50  -56.09   70.37
    3.00  -66.84  132.50  -54.84   81.91
    4.00  -66.61  147.50  -52.94   91.84
    5.00  -67.46  162.50  -52.66  102.26
    6.00  -67.51  177.50  -52.02  112.12
    7.00  -67.43  192.50  -51.76  121.86
    8.00  -68.15  207.50  -52.88  131.45
    9.00  -67.94  222.50  -53.68  141.12
   10.00  -67.58  237.50  -54.84  151.08
   11.00  -67.39  252.50  -56.59  161.26
   12.00  -67.42  267.50  -58.91  171.52
   13.00  -67.68  282.50  -61.82  181.72
   14.00  -68.16  297.50  -65.35  191.77
   15.00  -68.87  312.50  -69.46  201.80
   16.00  -69.75  327.50  -73.91  212.39
   17.00  -70.55  342.50  -78.32  225.44
   18.00  -70.37  357.50  -81.78  249.68
   19.00  -69.83   12.50  -83.43  293.50
   20.00  -68.85   27.50  -81.17  338.83
   21.00  -67.89   42.50  -76.65    4.97
   22.00  -67.01   57.50  -71.56   21.50
   23.00  -65.70   72.50  -66.07   33.56
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.91   87.50  -66.58   54.51
    1.00  -70.96  102.50  -64.16   66.95
    2.00  -71.92  117.50  -62.21   77.85
    3.00  -76.55  132.50  -64.44   92.39
    4.00  -78.79  147.50  -65.07  102.17
    5.00  -79.11  162.50  -64.37  109.06
    6.00  -78.36  177.50  -63.00  115.41
    7.00  -77.64  192.50  -62.06  122.36
    8.00  -77.97  207.50  -62.63  129.52
    9.00  -77.64  222.50  -62.99  136.83
   10.00  -77.90  237.50  -64.36  143.76
   11.00  -77.70  252.50  -65.69  151.04
   12.00  -77.89  267.50  -67.72  157.64
   13.00  -77.66  282.50  -69.79  164.76
   14.00  -77.65  297.50  -72.36  171.14
   15.00  -77.38  312.50  -75.11  177.99
   16.00  -77.57  327.50  -78.33  182.31
   17.00  -77.30  342.50  -81.60  187.55
   18.00  -77.81  357.50  -84.96  180.46
   19.00  -77.51   12.50  -87.94  149.06
   20.00  -76.49   27.50  -86.88   54.06
   21.00  -74.52   42.50  -82.26   36.68
   22.00  -72.33   57.50  -76.60   37.88
   23.00  -70.70   72.50  -71.12   44.91
</PRE>


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