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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>
04 May 1997 00:55:27 yearsecs  10630527
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.40   55.07  -71.57   17.47
    1.00  -66.39   70.07  -67.47   32.67
    2.00  -67.13   85.07  -64.43   47.21
    3.00  -67.86  100.07  -61.67   60.19
    4.00  -67.40  115.07  -58.17   70.44
    5.00  -67.97  130.07  -56.33   81.29
    6.00  -67.80  145.07  -54.38   91.01
    7.00  -68.02  160.07  -53.38  100.93
    8.00  -68.99  175.07  -53.59  110.94
    9.00  -69.21  190.07  -53.53  120.43
   10.00  -69.13  205.07  -53.74  129.80
   11.00  -68.94  220.07  -54.43  139.24
   12.00  -68.98  235.07  -55.86  148.76
   13.00  -69.24  250.07  -57.91  158.26
   14.00  -69.72  265.07  -60.52  167.57
   15.00  -70.43  280.07  -63.70  176.44
   16.00  -71.11  295.07  -67.25  185.08
   17.00  -71.28  310.07  -70.75  194.79
   18.00  -71.43  325.07  -74.52  205.53
   19.00  -70.80  340.07  -77.89  221.68
   20.00  -69.98  355.07  -80.92  246.59
   21.00  -69.20   10.07  -82.61  286.82
   22.00  -68.55   25.07  -81.24  331.99
   23.00  -67.62   40.07  -76.99    0.53
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.48   55.07  -76.59   32.31
    1.00  -72.57   70.07  -73.36   48.64
    2.00  -73.32   85.07  -70.18   60.83
    3.00  -78.60  100.07  -70.98   82.43
    4.00  -80.43  115.07  -70.01   92.45
    5.00  -80.81  130.07  -68.55   98.39
    6.00  -80.13  145.07  -66.55  102.87
    7.00  -79.14  160.07  -64.54  108.02
    8.00  -79.19  175.07  -63.92  114.67
    9.00  -79.24  190.07  -63.71  121.37
   10.00  -79.05  205.07  -63.67  128.11
   11.00  -79.12  220.07  -64.31  134.81
   12.00  -79.37  235.07  -65.52  141.21
   13.00  -79.20  250.07  -66.72  147.88
   14.00  -79.04  265.07  -68.30  154.48
   15.00  -78.86  280.07  -70.24  160.94
   16.00  -78.70  295.07  -72.54  167.08
   17.00  -78.52  310.07  -75.14  172.85
   18.00  -79.55  325.07  -78.28  171.69
   19.00  -79.80  340.07  -81.06  169.97
   20.00  -79.02  355.07  -84.04  169.55
   21.00  -77.24   10.07  -87.81  166.22
   22.00  -74.49   25.07  -87.04    9.94
   23.00  -72.76   40.07  -81.84   21.64
</PRE>


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