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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>
25 Feb 1997 13:11:43 yearsecs   4799503
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.88  235.35  -52.11  150.93
    1.00  -66.01  250.35  -55.05  160.75
    2.00  -66.76  265.35  -57.97  170.65
    3.00  -67.88  280.35  -61.58  179.97
    4.00  -67.43  295.35  -64.25  191.32
    5.00  -68.01  310.35  -68.23  201.78
    6.00  -67.85  325.35  -71.86  215.04
    7.00  -68.13  340.35  -75.87  230.60
    8.00  -68.99  355.35  -80.11  250.89
    9.00  -69.44   10.35  -82.89  287.19
   10.00  -69.22   25.35  -81.93  334.14
   11.00  -69.01   40.35  -78.38    4.92
   12.00  -69.02   55.35  -74.26   24.39
   13.00  -69.27   70.35  -70.36   39.40
   14.00  -69.74   85.35  -66.95   52.56
   15.00  -70.44  100.35  -64.13   64.62
   16.00  -71.11  115.35  -61.81   75.40
   17.00  -71.24  130.35  -59.59   84.75
   18.00  -71.40  145.35  -57.99   93.87
   19.00  -70.76  160.35  -56.12  102.49
   20.00  -69.95  175.35  -54.54  111.39
   21.00  -69.17  190.35  -53.49  120.60
   22.00  -68.29  205.35  -52.92  130.07
   23.00  -66.36  220.35  -52.00  140.19
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.88  235.35  -56.72  148.45
    1.00  -71.01  250.35  -59.52  157.01
    2.00  -71.76  265.35  -62.32  165.48
    3.00  -77.51  280.35  -69.34  164.14
    4.00  -79.47  295.35  -73.00  164.80
    5.00  -79.84  310.35  -75.69  167.70
    6.00  -79.01  325.35  -78.24  174.48
    7.00  -78.06  340.35  -81.20  181.98
    8.00  -78.22  355.35  -84.39  177.37
    9.00  -78.29   10.35  -86.97  149.31
   10.00  -78.11   25.35  -86.61   86.51
   11.00  -78.23   40.35  -83.46   69.72
   12.00  -78.54   55.35  -80.06   70.24
   13.00  -78.39   70.35  -76.72   71.98
   14.00  -78.24   85.35  -73.51   75.99
   15.00  -78.08  100.35  -70.57   81.13
   16.00  -77.92  115.35  -67.99   86.93
   17.00  -77.75  130.35  -65.82   93.17
   18.00  -78.88  145.35  -65.34  101.35
   19.00  -79.13  160.35  -64.51  108.13
   20.00  -78.27  175.35  -62.97  114.36
   21.00  -76.32  190.35  -60.72  121.20
   22.00  -73.29  205.35  -57.86  129.39
   23.00  -71.36  220.35  -56.76  138.60
</PRE>


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