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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>
13 Aug 1997 22:46:58 yearsecs  19435618
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.84   88.22  -51.60   35.40
    1.00  -57.12  103.22  -49.19   49.52
    2.00  -57.38  118.22  -46.95   63.09
    3.00  -57.62  133.22  -45.08   75.73
    4.00  -57.83  148.22  -43.78   87.64
    5.00  -58.42  163.22  -43.39   99.37
    6.00  -60.14  178.22  -44.57  111.04
    7.00  -61.22  193.22  -45.60  122.06
    8.00  -61.71  208.22  -46.66  132.74
    9.00  -61.42  223.22  -47.57  143.56
   10.00  -61.08  238.22  -48.90  154.65
   11.00  -60.97  253.22  -50.85  165.94
   12.00  -61.07  268.22  -53.35  177.41
   13.00  -61.40  283.22  -56.37  189.00
   14.00  -61.94  298.22  -60.00  200.66
   15.00  -62.69  313.22  -64.27  212.70
   16.00  -63.66  328.22  -68.93  226.00
   17.00  -64.84  343.22  -73.65  242.10
   18.00  -65.11  358.22  -76.94  266.36
   19.00  -63.74   13.22  -76.75  300.67
   20.00  -62.06   28.22  -73.18  331.84
   21.00  -60.83   43.22  -68.02  353.94
   22.00  -58.95   58.22  -61.40    9.08
   23.00  -57.81   73.22  -56.07   22.49
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -77.90   88.22  -72.74   75.90
    1.00  -78.63  103.22  -70.47   83.72
    2.00  -79.32  118.22  -68.73   91.04
    3.00  -79.74  133.22  -67.30   97.62
    4.00  -80.34  148.22  -66.50  104.39
    5.00  -81.09  163.22  -66.31  111.06
    6.00  -81.33  178.22  -66.03  117.04
    7.00  -80.88  193.22  -65.40  122.86
    8.00  -81.00  208.22  -65.74  128.87
    9.00  -80.99  223.22  -66.31  134.84
   10.00  -80.53  238.22  -66.84  141.24
   11.00  -80.18  253.22  -67.87  147.68
   12.00  -79.91  268.22  -69.36  153.99
   13.00  -79.66  283.22  -71.24  160.10
   14.00  -79.55  298.22  -73.51  165.47
   15.00  -79.31  313.22  -76.03  170.56
   16.00  -79.43  328.22  -78.85  172.66
   17.00  -79.51  343.22  -81.69  171.25
   18.00  -79.21  358.22  -84.51  164.71
   19.00  -78.55   13.22  -86.95  136.34
   20.00  -78.35   28.22  -85.94   83.22
   21.00  -77.94   43.22  -82.84   66.30
   22.00  -78.14   58.22  -79.36   68.05
   23.00  -77.68   73.22  -75.80   69.67
</PRE>


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