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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>
02 Jun 1997 13:49:20 yearsecs  13182560
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.56  230.35  -50.32  147.97
    1.00  -63.63  245.35  -52.20  158.64
    2.00  -64.37  260.35  -55.05  169.03
    3.00  -65.11  275.35  -58.23  179.40
    4.00  -64.87  290.35  -60.94  190.95
    5.00  -66.05  305.35  -65.35  201.09
    6.00  -66.31  320.35  -69.29  213.49
    7.00  -66.17  335.35  -72.96  229.30
    8.00  -66.57  350.35  -76.84  249.07
    9.00  -66.35    5.35  -79.17  279.51
   10.00  -65.93   20.35  -78.86  317.36
   11.00  -65.74   35.35  -76.04  348.71
   12.00  -65.77   50.35  -72.16   10.60
   13.00  -66.03   65.35  -68.34   27.44
   14.00  -66.51   80.35  -64.95   42.10
   15.00  -67.22   95.35  -62.07   55.59
   16.00  -68.15  110.35  -59.82   68.06
   17.00  -69.23  125.35  -58.29   79.46
   18.00  -69.16  140.35  -56.26   88.99
   19.00  -68.53  155.35  -54.22   98.14
   20.00  -67.31  170.35  -52.08  107.37
   21.00  -66.24  185.35  -50.58  117.06
   22.00  -65.15  200.35  -49.66  127.04
   23.00  -64.10  215.35  -49.45  137.36
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.65  230.35  -57.86  144.44
    1.00  -72.77  245.35  -60.47  152.53
    2.00  -73.76  260.35  -63.30  160.14
    3.00  -75.88  275.35  -67.32  165.03
    4.00  -78.39  290.35  -71.56  166.19
    5.00  -79.16  305.35  -74.56  169.00
    6.00  -78.56  320.35  -77.15  175.62
    7.00  -78.20  335.35  -80.14  180.53
    8.00  -78.77  350.35  -83.23  174.74
    9.00  -78.46    5.35  -86.15  161.57
   10.00  -78.58   20.35  -86.82  107.65
   11.00  -78.36   35.35  -84.52   74.05
   12.00  -78.14   50.35  -81.17   67.32
   13.00  -77.93   65.35  -77.67   68.42
   14.00  -78.01   80.35  -74.41   73.43
   15.00  -77.63   95.35  -71.17   77.88
   16.00  -77.59  110.35  -68.50   84.09
   17.00  -76.46  125.35  -65.28   88.83
   18.00  -76.41  140.35  -63.44   96.04
   19.00  -76.73  155.35  -62.45  103.75
   20.00  -75.98  170.35  -60.84  110.83
   21.00  -74.03  185.35  -58.42  118.23
   22.00  -72.89  200.35  -57.33  126.61
   23.00  -71.90  215.35  -56.96  135.47
</PRE>


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