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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>
17 May 1997 22:03:06 yearsecs  11829786
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.17   95.98  -56.50   48.83
    1.00  -62.73  110.98  -54.07   62.06
    2.00  -63.29  125.98  -52.09   74.25
    3.00  -63.85  140.98  -50.75   85.57
    4.00  -63.44  155.98  -49.00   95.99
    5.00  -64.70  170.98  -49.42  106.98
    6.00  -65.20  185.98  -49.53  117.34
    7.00  -65.22  200.98  -49.75  127.45
    8.00  -65.89  215.98  -51.21  137.40
    9.00  -65.30  230.98  -52.01  147.74
   10.00  -64.83  245.98  -53.39  158.41
   11.00  -64.64  260.98  -55.39  169.28
   12.00  -64.68  275.98  -57.96  180.29
   13.00  -64.94  290.98  -61.13  191.34
   14.00  -65.42  305.98  -64.95  202.54
   15.00  -66.13  320.98  -69.29  214.42
   16.00  -67.06  335.98  -73.88  228.05
   17.00  -68.21  350.98  -78.47  245.65
   18.00  -68.24    5.98  -81.20  277.34
   19.00  -67.55   20.98  -80.63  319.85
   20.00  -66.17   35.98  -76.39  350.56
   21.00  -65.07   50.98  -71.17    9.98
   22.00  -63.82   65.98  -65.62   23.96
   23.00  -62.64   80.98  -60.44   36.19
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.41   95.98  -65.99   63.48
    1.00  -72.48  110.98  -63.91   74.79
    2.00  -73.45  125.98  -62.36   84.83
    3.00  -74.43  140.98  -61.45   94.17
    4.00  -77.01  155.98  -62.69  104.29
    5.00  -78.04  170.98  -62.89  112.20
    6.00  -77.50  185.98  -61.95  119.19
    7.00  -76.83  200.98  -61.32  126.56
    8.00  -77.72  215.98  -62.72  133.66
    9.00  -77.54  230.98  -63.48  140.97
   10.00  -77.52  245.98  -64.82  148.19
   11.00  -77.35  260.98  -66.42  155.54
   12.00  -77.01  275.98  -68.28  163.20
   13.00  -76.87  290.98  -70.69  170.43
   14.00  -76.99  305.98  -73.61  176.69
   15.00  -76.57  320.98  -76.54  184.55
   16.00  -76.42  335.98  -79.89  191.38
   17.00  -74.93  350.98  -83.12  209.72
   18.00  -74.72    5.98  -86.95  231.74
   19.00  -75.42   20.98  -88.59   19.94
   20.00  -74.85   35.98  -84.24   33.62
   21.00  -72.95   50.98  -78.90   34.81
   22.00  -72.28   65.98  -74.23   44.62
   23.00  -71.43   80.98  -69.58   53.22
</PRE>


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