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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>
18 Aug 1997 21:48:36 yearsecs  19864116
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.39  102.60  -53.12   52.45
    1.00  -61.06  117.60  -51.07   65.76
    2.00  -61.72  132.60  -49.51   78.00
    3.00  -62.38  147.60  -48.58   89.46
    4.00  -61.53  162.60  -46.62   99.98
    5.00  -62.60  177.60  -47.08  111.09
    6.00  -63.57  192.60  -47.92  121.74
    7.00  -64.08  207.60  -48.93  132.04
    8.00  -64.61  222.60  -50.54  142.22
    9.00  -63.97  237.60  -51.53  152.93
   10.00  -63.56  252.60  -53.15  163.93
   11.00  -63.37  267.60  -55.32  175.18
   12.00  -63.40  282.60  -58.06  186.58
   13.00  -63.66  297.60  -61.43  198.12
   14.00  -64.14  312.60  -65.43  210.09
   15.00  -64.85  327.60  -69.85  223.31
   16.00  -65.78  342.60  -74.37  239.32
   17.00  -66.93  357.60  -78.63  261.32
   18.00  -66.91   12.60  -80.25  297.15
   19.00  -66.27   27.60  -78.26  334.44
   20.00  -64.73   42.60  -73.04  358.39
   21.00  -63.62   57.60  -67.63   14.97
   22.00  -62.13   72.60  -61.87   27.66
   23.00  -60.97   87.60  -56.93   39.85
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.72  102.60  -66.65   72.13
    1.00  -74.39  117.60  -64.53   81.61
    2.00  -75.22  132.60  -63.18   90.68
    3.00  -75.93  147.60  -62.28   99.14
    4.00  -77.76  162.60  -63.01  108.06
    5.00  -78.75  177.60  -63.40  115.61
    6.00  -78.69  192.60  -63.14  122.47
    7.00  -78.19  207.60  -62.87  129.50
    8.00  -78.70  222.60  -64.03  136.22
    9.00  -78.66  237.60  -65.07  143.06
   10.00  -78.51  252.60  -66.39  149.97
   11.00  -78.22  267.60  -68.00  157.07
   12.00  -77.93  282.60  -69.99  164.19
   13.00  -77.81  297.60  -72.48  170.69
   14.00  -77.69  312.60  -75.28  176.83
   15.00  -77.24  327.60  -78.25  184.02
   16.00  -77.09  342.60  -81.60  189.09
   17.00  -76.02  357.60  -85.12  202.58
   18.00  -75.83   12.60  -89.05  210.32
   19.00  -76.24   27.60  -86.88   48.95
   20.00  -75.79   42.60  -82.74   47.10
   21.00  -74.44   57.60  -78.03   47.40
   22.00  -74.24   72.60  -73.95   55.99
   23.00  -73.36   87.60  -69.61   62.49
</PRE>


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