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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>
30 Jul 1997 17:15:04 yearsecs  18206104
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.63  175.47  -51.20  110.56
    1.00  -66.95  190.47  -51.27  120.51
    2.00  -67.90  205.47  -52.55  130.19
    3.00  -68.83  220.47  -54.36  139.53
    4.00  -68.62  235.47  -55.57  149.21
    5.00  -69.40  250.47  -58.10  158.40
    6.00  -69.48  265.47  -60.38  168.08
    7.00  -69.85  280.47  -63.29  177.50
    8.00  -70.91  295.47  -67.17  185.71
    9.00  -71.30  310.47  -70.86  195.01
   10.00  -71.53  325.47  -74.69  205.54
   11.00  -70.85  340.47  -78.03  221.93
   12.00  -70.52  355.47  -81.46  245.00
   13.00  -70.46   10.47  -83.97  285.15
   14.00  -70.64   25.47  -83.44  338.64
   15.00  -71.06   40.47  -80.33   13.02
   16.00  -71.51   55.47  -76.51   32.81
   17.00  -71.53   70.47  -72.40   45.69
   18.00  -71.26   85.47  -68.32   56.01
   19.00  -70.04  100.47  -63.72   64.01
   20.00  -69.48  115.47  -60.19   73.29
   21.00  -68.97  130.47  -57.29   82.50
   22.00  -68.48  145.47  -55.03   91.75
   23.00  -67.52  160.47  -52.85  100.95
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.63  175.47  -56.23  111.97
    1.00  -72.93  190.47  -57.27  120.97
    2.00  -73.90  205.47  -58.48  129.36
    3.00  -78.92  220.47  -64.13  135.11
    4.00  -80.83  235.47  -66.91  139.81
    5.00  -81.28  250.47  -68.53  144.83
    6.00  -80.77  265.47  -69.67  151.17
    7.00  -80.02  280.47  -71.07  158.20
    8.00  -80.20  295.47  -73.39  162.48
    9.00  -80.20  310.47  -75.83  166.24
   10.00  -80.15  325.47  -78.42  168.54
   11.00  -80.14  340.47  -81.07  167.53
   12.00  -80.14  355.47  -83.54  159.48
   13.00  -79.77   10.47  -85.54  138.44
   14.00  -79.44   25.47  -85.49   99.81
   15.00  -79.02   40.47  -83.23   76.94
   16.00  -78.68   55.47  -80.05   71.13
   17.00  -78.18   70.47  -76.61   71.04
   18.00  -78.55   85.47  -73.65   77.13
   19.00  -78.86  100.47  -71.09   83.33
   20.00  -78.20  115.47  -68.20   87.57
   21.00  -76.51  130.47  -64.66   91.36
   22.00  -74.03  145.47  -60.60   96.21
   23.00  -72.52  160.47  -57.89  103.54
</PRE>


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