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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>
27 Apr 1997 14:20:43 yearsecs  10074043
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.69  221.60  -51.47  141.22
    1.00  -65.85  236.60  -53.15  151.35
    2.00  -66.69  251.60  -55.84  161.15
    3.00  -67.52  266.60  -58.85  170.80
    4.00  -67.14  281.60  -61.18  181.74
    5.00  -67.80  296.60  -64.85  191.67
    6.00  -67.70  311.60  -68.28  203.34
    7.00  -67.83  326.60  -72.15  216.30
    8.00  -68.59  341.60  -76.56  230.88
    9.00  -68.88  356.60  -80.27  253.71
   10.00  -68.62   11.60  -82.08  292.45
   11.00  -68.43   26.60  -80.86  335.66
   12.00  -68.47   41.60  -77.49    5.21
   13.00  -68.73   56.60  -73.61   24.88
   14.00  -69.21   71.60  -69.97   40.33
   15.00  -69.92   86.60  -66.81   53.87
   16.00  -70.67  101.60  -64.07   65.85
   17.00  -71.04  116.60  -61.52   76.08
   18.00  -71.08  131.60  -59.25   85.33
   19.00  -70.48  146.60  -56.95   93.91
   20.00  -69.61  161.60  -54.88  102.67
   21.00  -68.77  176.60  -53.31  111.85
   22.00  -68.04  191.60  -52.36  121.31
   23.00  -66.85  206.60  -51.57  131.04
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.69  221.60  -56.22  139.59
    1.00  -71.78  236.60  -58.60  148.09
    2.00  -72.59  251.60  -61.09  156.34
    3.00  -77.74  266.60  -67.48  157.50
    4.00  -79.72  281.60  -71.04  159.36
    5.00  -80.08  296.60  -73.51  163.20
    6.00  -79.36  311.60  -75.75  169.96
    7.00  -78.41  326.60  -78.36  177.81
    8.00  -78.51  341.60  -81.47  178.75
    9.00  -78.57  356.60  -84.52  172.75
   10.00  -78.53   11.60  -86.86  142.64
   11.00  -78.52   26.60  -86.10   88.58
   12.00  -78.76   41.60  -83.07   74.07
   13.00  -78.57   56.60  -79.79   70.53
   14.00  -78.46   71.60  -76.47   72.63
   15.00  -78.26   86.60  -73.27   76.50
   16.00  -78.21  101.60  -70.45   81.98
   17.00  -78.00  116.60  -67.87   87.63
   18.00  -78.88  131.60  -66.70   95.53
   19.00  -78.96  146.60  -65.31  101.98
   20.00  -78.09  161.60  -63.40  107.85
   21.00  -76.20  176.60  -60.82  114.13
   22.00  -73.58  191.60  -57.93  121.65
   23.00  -71.85  206.60  -56.48  130.34
</PRE>


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