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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>
11 Jul 1997 22:43:22 yearsecs  16584202
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.72   87.75  -61.21   45.38
    1.00  -65.79  102.75  -58.97   59.23
    2.00  -66.66  117.75  -56.93   71.50
    3.00  -67.53  132.75  -55.52   82.68
    4.00  -67.22  147.75  -53.54   92.40
    5.00  -67.99  162.75  -53.18  102.66
    6.00  -68.07  177.75  -52.58  112.42
    7.00  -68.65  192.75  -52.97  122.08
    8.00  -69.93  207.75  -54.63  131.35
    9.00  -70.25  222.75  -55.88  140.46
   10.00  -69.67  237.75  -56.78  150.09
   11.00  -69.18  252.75  -58.22  160.05
   12.00  -68.99  267.75  -60.32  170.11
   13.00  -69.06  282.75  -63.06  180.10
   14.00  -69.41  297.75  -66.45  189.91
   15.00  -70.01  312.75  -70.43  199.59
   16.00  -70.61  327.75  -74.61  210.21
   17.00  -70.67  342.75  -78.48  225.27
   18.00  -70.77  357.75  -82.18  248.36
   19.00  -70.05   12.75  -83.68  294.03
   20.00  -69.15   27.75  -81.45  340.22
   21.00  -68.35   42.75  -77.06    6.62
   22.00  -67.75   57.75  -72.28   23.54
   23.00  -66.15   72.75  -66.51   34.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.72   87.75  -66.34   54.32
    1.00  -70.92  102.75  -64.07   67.05
    2.00  -71.73  117.75  -61.99   77.74
    3.00  -77.54  132.75  -65.34   93.94
    4.00  -79.53  147.75  -65.77  103.18
    5.00  -79.95  162.75  -65.19  109.86
    6.00  -79.20  177.75  -63.85  115.87
    7.00  -78.09  192.75  -62.52  122.51
    8.00  -78.12  207.75  -62.80  129.60
    9.00  -78.16  222.75  -63.52  136.63
   10.00  -77.94  237.75  -64.42  143.84
   11.00  -78.04  252.75  -66.00  150.70
   12.00  -78.33  267.75  -68.10  156.94
   13.00  -78.15  282.75  -70.17  163.72
   14.00  -77.97  297.75  -72.60  170.28
   15.00  -77.79  312.75  -75.35  176.52
   16.00  -77.61  327.75  -78.39  182.22
   17.00  -77.41  342.75  -81.67  186.80
   18.00  -78.57  357.75  -84.74  171.69
   19.00  -78.87   12.75  -86.59  136.39
   20.00  -78.05   27.75  -86.21   80.21
   21.00  -76.10   42.75  -82.79   49.88
   22.00  -73.06   57.75  -77.08   41.14
   23.00  -71.15   72.75  -71.46   46.38
</PRE>


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