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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>
09 May 1997 18:41:47 yearsecs  11126507
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.00  147.05  -52.36   91.16
    1.00  -66.07  162.05  -51.28  101.36
    2.00  -66.88  177.05  -51.39  111.67
    3.00  -67.68  192.05  -52.01  121.58
    4.00  -67.30  207.05  -52.03  131.28
    5.00  -67.97  222.05  -53.67  140.82
    6.00  -67.93  237.05  -55.11  150.60
    7.00  -68.34  252.05  -57.37  160.25
    8.00  -69.53  267.05  -60.67  169.07
    9.00  -70.18  282.05  -63.87  178.09
   10.00  -70.22  297.05  -66.96  188.01
   11.00  -69.64  312.05  -69.96  199.87
   12.00  -69.41  327.05  -73.53  212.88
   13.00  -69.48  342.05  -77.39  228.66
   14.00  -69.82  357.05  -81.21  251.14
   15.00  -70.42   12.05  -84.04  290.86
   16.00  -71.01   27.05  -83.54  344.75
   17.00  -71.08   42.05  -79.92   15.46
   18.00  -71.19   57.05  -75.79   33.14
   19.00  -70.50   72.05  -71.07   44.02
   20.00  -69.63   87.05  -66.42   53.61
   21.00  -68.79  102.05  -62.17   63.09
   22.00  -68.12  117.05  -58.55   72.68
   23.00  -67.21  132.05  -55.28   81.92
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.26  147.05  -58.69   95.57
    1.00  -73.37  162.05  -58.64  104.94
    2.00  -74.15  177.05  -58.73  113.67
    3.00  -79.24  192.05  -63.71  122.26
    4.00  -81.01  207.05  -65.71  128.40
    5.00  -81.41  222.05  -66.67  134.05
    6.00  -80.83  237.05  -67.03  140.42
    7.00  -79.96  252.05  -67.57  147.56
    8.00  -80.07  267.05  -69.34  153.20
    9.00  -80.12  282.05  -71.35  158.47
   10.00  -79.97  297.05  -73.53  163.70
   11.00  -80.08  312.05  -76.06  167.04
   12.00  -80.23  327.05  -78.70  168.19
   13.00  -80.00  342.05  -81.38  168.08
   14.00  -79.78  357.05  -83.99  160.88
   15.00  -79.56   12.05  -85.85  135.47
   16.00  -79.34   27.05  -85.38   95.81
   17.00  -79.12   42.05  -82.88   76.92
   18.00  -80.07   57.05  -79.74   79.80
   19.00  -80.29   72.05  -76.91   81.28
   20.00  -79.53   87.05  -73.86   81.14
   21.00  -77.81  102.05  -70.07   81.11
   22.00  -75.13  117.05  -65.29   82.53
   23.00  -73.45  132.05  -61.53   88.21
</PRE>


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