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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>
16 Jul 1997 13:19:44 yearsecs  16982384
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.32  238.24  -51.93  153.22
    1.00  -63.97  253.24  -53.62  164.14
    2.00  -64.90  268.24  -56.80  174.37
    3.00  -65.82  283.24  -60.34  184.47
    4.00  -65.61  298.24  -63.32  196.09
    5.00  -66.67  313.24  -67.81  206.57
    6.00  -66.85  328.24  -71.76  220.07
    7.00  -66.85  343.24  -75.48  237.73
    8.00  -67.38  358.24  -79.18  261.49
    9.00  -66.96   13.24  -80.31  298.83
   10.00  -66.54   28.24  -78.45  336.20
   11.00  -66.35   43.24  -74.75    2.39
   12.00  -66.39   58.24  -70.67   20.92
   13.00  -66.64   73.24  -66.91   36.09
   14.00  -67.13   88.24  -63.65   49.79
   15.00  -67.83  103.24  -60.96   62.50
   16.00  -68.76  118.24  -58.98   74.25
   17.00  -69.78  133.24  -57.73   85.04
   18.00  -69.62  148.24  -55.93   94.31
   19.00  -69.04  163.24  -54.21  103.45
   20.00  -67.92  178.24  -52.41  112.70
   21.00  -66.89  193.24  -51.22  122.32
   22.00  -65.87  208.24  -50.70  132.25
   23.00  -64.94  223.24  -50.91  142.57
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.54  238.24  -57.64  149.86
    1.00  -71.62  253.24  -60.45  158.24
    2.00  -72.62  268.24  -63.51  166.15
    3.00  -75.82  283.24  -68.58  169.12
    4.00  -78.26  298.24  -72.85  169.60
    5.00  -78.80  313.24  -75.86  172.67
    6.00  -78.10  328.24  -78.63  179.82
    7.00  -77.87  343.24  -81.82  183.46
    8.00  -78.21  358.24  -84.98  175.15
    9.00  -77.96   13.24  -87.55  140.02
   10.00  -78.21   28.24  -86.02   81.37
   11.00  -77.96   43.24  -82.83   66.48
   12.00  -77.92   58.24  -79.30   66.75
   13.00  -77.69   73.24  -75.80   69.73
   14.00  -77.75   88.24  -72.64   75.41
   15.00  -77.40  103.24  -69.56   80.60
   16.00  -77.51  118.24  -67.22   87.38
   17.00  -76.77  133.24  -64.57   93.06
   18.00  -76.91  148.24  -63.18  100.44
   19.00  -76.86  163.24  -62.07  107.74
   20.00  -75.91  178.24  -60.48  114.88
   21.00  -73.87  193.24  -58.22  122.59
   22.00  -72.29  208.24  -56.98  131.22
   23.00  -71.00  223.24  -56.64  140.47
</PRE>


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