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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 Aug 1997 21:58:20 yearsecs  19778300
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.38  100.21  -58.03   55.30
    1.00  -63.98  115.21  -54.61   66.73
    2.00  -64.94  130.21  -53.20   78.72
    3.00  -65.90  145.21  -52.43   89.84
    4.00  -65.72  160.21  -51.03   99.96
    5.00  -66.78  175.21  -51.36  110.43
    6.00  -67.01  190.21  -51.33  120.34
    7.00  -67.01  205.21  -51.67  130.12
    8.00  -67.31  220.21  -52.89  139.83
    9.00  -66.71  235.21  -53.78  149.99
   10.00  -66.39  250.21  -55.37  160.40
   11.00  -66.24  265.21  -57.49  171.01
   12.00  -66.30  280.21  -60.17  181.71
   13.00  -66.58  295.21  -63.49  192.42
   14.00  -67.08  310.21  -67.41  203.33
   15.00  -67.80  325.21  -71.78  215.02
   16.00  -68.75  340.21  -76.35  228.66
   17.00  -69.76  355.21  -80.76  247.74
   18.00  -69.60   10.21  -83.05  286.40
   19.00  -69.04   25.21  -81.76  333.35
   20.00  -67.95   40.21  -77.31    1.60
   21.00  -66.93   55.21  -72.12   18.82
   22.00  -65.92   70.21  -66.92   31.88
   23.00  -65.01   85.21  -62.13   43.66
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.60  100.21  -67.03   70.51
    1.00  -74.58  115.21  -65.09   80.64
    2.00  -75.49  130.21  -63.73   89.80
    3.00  -78.34  145.21  -64.83  100.62
    4.00  -80.40  160.21  -65.78  109.23
    5.00  -80.87  175.21  -65.63  115.61
    6.00  -80.37  190.21  -64.88  121.57
    7.00  -79.93  205.21  -64.57  127.96
    8.00  -80.49  220.21  -65.67  133.99
    9.00  -80.33  235.21  -66.43  140.26
   10.00  -80.43  250.21  -67.79  146.10
   11.00  -80.16  265.21  -69.18  152.34
   12.00  -80.07  280.21  -71.06  157.97
   13.00  -79.82  295.21  -73.16  163.64
   14.00  -79.80  310.21  -75.66  167.83
   15.00  -79.46  325.21  -78.29  172.17
   16.00  -79.51  340.21  -81.13  171.89
   17.00  -78.88  355.21  -84.13  170.79
   18.00  -78.97   10.21  -86.31  143.85
   19.00  -78.85   25.21  -86.03   95.41
   20.00  -78.03   40.21  -83.53   67.92
   21.00  -76.30   55.21  -79.57   56.19
   22.00  -74.98   70.21  -75.05   57.29
   23.00  -73.92   85.21  -70.63   62.52
</PRE>


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