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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>
14 Jul 1997 18:46:10 yearsecs  16829170
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.00  147.90  -51.25   91.13
    1.00  -65.20  162.90  -50.34  101.58
    2.00  -66.18  177.90  -50.67  112.07
    3.00  -67.17  192.90  -51.51  122.11
    4.00  -66.98  207.90  -51.76  131.87
    5.00  -67.88  222.90  -53.66  141.40
    6.00  -68.12  237.90  -55.38  151.06
    7.00  -68.87  252.90  -57.96  160.40
    8.00  -70.44  267.90  -61.60  168.61
    9.00  -71.59  282.90  -65.20  176.52
   10.00  -72.30  297.90  -68.78  184.58
   11.00  -71.03  312.90  -71.24  197.37
   12.00  -70.29  327.90  -74.41  211.28
   13.00  -69.95  342.90  -77.97  228.13
   14.00  -69.97  357.90  -81.52  252.28
   15.00  -70.32   12.90  -83.98  294.11
   16.00  -70.72   27.90  -83.08  345.86
   17.00  -70.64   42.90  -79.28   14.73
   18.00  -70.61   57.90  -75.04   31.94
   19.00  -69.78   72.90  -70.17   42.83
   20.00  -68.76   87.90  -65.38   52.54
   21.00  -67.79  102.90  -60.99   62.18
   22.00  -67.01  117.90  -57.26   71.99
   23.00  -66.15  132.90  -54.08   81.60
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.81  147.90  -58.16   95.71
    1.00  -73.01  162.90  -58.22  105.21
    2.00  -73.85  177.90  -58.40  114.05
    3.00  -79.08  192.90  -63.55  122.63
    4.00  -80.92  207.90  -65.64  128.77
    5.00  -81.36  222.90  -66.66  134.42
    6.00  -80.83  237.90  -67.09  140.76
    7.00  -80.01  252.90  -67.70  147.83
    8.00  -80.18  267.90  -69.52  153.30
    9.00  -80.29  282.90  -71.58  158.30
   10.00  -80.21  297.90  -73.78  163.12
   11.00  -80.42  312.90  -76.30  165.75
   12.00  -80.51  327.90  -78.86  166.70
   13.00  -80.21  342.90  -81.48  166.41
   14.00  -79.92  357.90  -84.03  158.82
   15.00  -79.63   12.90  -85.81  132.97
   16.00  -79.36   27.90  -85.25   94.35
   17.00  -79.08   42.90  -82.72   76.20
   18.00  -79.99   57.90  -79.57   79.23
   19.00  -80.17   72.90  -76.72   80.80
   20.00  -79.35   87.90  -73.62   80.75
   21.00  -77.56  102.90  -69.74   80.84
   22.00  -74.77  117.90  -64.83   82.39
   23.00  -73.00  132.90  -60.98   88.17
</PRE>


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