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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>
11 May 1997 18:17:14 yearsecs  11297834
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.29  153.78  -51.05   95.35
    1.00  -65.68  168.78  -50.51  105.77
    2.00  -66.55  183.78  -50.91  116.06
    3.00  -67.42  198.78  -51.85  125.92
    4.00  -67.06  213.78  -52.18  135.69
    5.00  -67.76  228.78  -54.08  145.26
    6.00  -67.68  243.78  -55.69  155.20
    7.00  -67.77  258.78  -57.84  165.22
    8.00  -68.64  273.78  -61.04  174.55
    9.00  -68.74  288.78  -63.98  184.69
   10.00  -68.49  303.78  -67.06  195.85
   11.00  -68.27  318.78  -70.54  208.20
   12.00  -68.31  333.78  -74.37  222.48
   13.00  -68.57  348.78  -78.27  241.01
   14.00  -69.05    3.78  -81.73  269.43
   15.00  -69.75   18.78  -83.28  315.05
   16.00  -70.52   33.78  -81.56  358.77
   17.00  -70.96   48.78  -77.93   23.60
   18.00  -70.97   63.78  -73.73   38.49
   19.00  -70.38   78.78  -69.20   49.01
   20.00  -69.49   93.78  -64.69   58.31
   21.00  -68.63  108.78  -60.61   67.60
   22.00  -67.88  123.78  -57.17   76.99
   23.00  -66.37  138.78  -53.59   85.80
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.29  153.78  -56.12   98.19
    1.00  -71.40  168.78  -56.28  107.89
    2.00  -72.26  183.78  -56.66  117.02
    3.00  -77.40  198.78  -61.87  125.41
    4.00  -79.47  213.78  -64.37  131.84
    5.00  -79.84  228.78  -65.52  138.07
    6.00  -79.12  243.78  -66.04  145.27
    7.00  -78.23  258.78  -66.87  153.15
    8.00  -78.41  273.78  -69.00  159.36
    9.00  -78.26  288.78  -71.22  165.92
   10.00  -78.15  303.78  -73.79  172.00
   11.00  -78.13  318.78  -76.69  177.13
   12.00  -78.28  333.78  -79.82  179.83
   13.00  -78.08  348.78  -83.02  181.33
   14.00  -77.98    3.78  -86.18  170.92
   15.00  -77.76   18.78  -87.77  108.37
   16.00  -77.75   33.78  -85.07   68.40
   17.00  -77.53   48.78  -81.50   62.74
   18.00  -78.37   63.78  -78.15   70.37
   19.00  -78.39   78.78  -74.93   74.41
   20.00  -77.50   93.78  -71.38   76.85
   21.00  -75.59  108.78  -67.10   79.16
   22.00  -73.05  123.78  -62.30   83.07
   23.00  -71.37  138.78  -58.66   89.93
</PRE>


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