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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>
22 Aug 1997 19:17:40 yearsecs  20200660
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.15  140.06  -51.16   85.12
    1.00  -63.90  155.06  -49.53   95.56
    2.00  -64.79  170.06  -49.55  106.37
    3.00  -65.67  185.06  -50.01  116.79
    4.00  -65.45  200.06  -49.95  126.83
    5.00  -66.53  215.06  -51.76  136.65
    6.00  -66.74  230.06  -53.25  146.54
    7.00  -66.59  245.06  -54.87  156.73
    8.00  -67.27  260.06  -57.59  166.53
    9.00  -66.83  275.06  -59.69  177.44
   10.00  -66.41  290.06  -62.23  188.81
   11.00  -66.22  305.06  -65.43  200.59
   12.00  -66.25  320.06  -69.17  213.34
   13.00  -66.51  335.06  -73.18  228.23
   14.00  -66.99  350.06  -77.17  247.55
   15.00  -67.70    5.06  -80.54  276.21
   16.00  -68.63   20.06  -81.93  318.15
   17.00  -69.66   35.06  -80.39  357.92
   18.00  -69.52   50.06  -76.23   19.93
   19.00  -68.93   65.06  -71.47   33.81
   20.00  -67.79   80.06  -66.35   44.32
   21.00  -66.75   95.06  -61.66   54.61
   22.00  -65.71  110.06  -57.39   64.76
   23.00  -64.76  125.06  -53.76   74.86
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.82  140.06  -56.95   89.35
    1.00  -70.94  155.06  -56.68   99.39
    2.00  -71.98  170.06  -56.80  108.89
    3.00  -75.08  185.06  -59.49  118.26
    4.00  -77.66  200.06  -62.14  126.02
    5.00  -78.27  215.06  -63.23  132.97
    6.00  -77.54  230.06  -63.41  140.54
    7.00  -76.86  245.06  -64.13  148.48
    8.00  -77.53  260.06  -66.45  154.83
    9.00  -77.15  275.06  -68.25  162.49
   10.00  -77.21  290.06  -70.75  169.18
   11.00  -77.03  305.06  -73.45  176.18
   12.00  -76.98  320.06  -76.51  182.49
   13.00  -76.77  335.06  -79.78  189.05
   14.00  -76.87  350.06  -83.33  192.15
   15.00  -76.52    5.06  -87.01  193.97
   16.00  -76.63   20.06  -88.62   77.61
   17.00  -75.77   35.06  -84.80   43.27
   18.00  -75.90   50.06  -80.77   51.47
   19.00  -75.98   65.06  -76.92   58.87
   20.00  -75.09   80.06  -72.71   63.07
   21.00  -73.02   95.06  -67.63   66.24
   22.00  -71.55  110.06  -63.20   72.75
   23.00  -70.26  125.06  -59.37   80.42
</PRE>


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