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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>
01 Sep 1997 18:57:32 yearsecs  21063452
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.12  145.00  -50.62   88.59
    1.00  -65.27  160.00  -50.60   99.62
    2.00  -66.45  175.00  -51.03  110.20
    3.00  -67.61  190.00  -51.93  120.26
    4.00  -67.55  205.00  -52.19  129.93
    5.00  -68.54  220.00  -54.04  139.32
    6.00  -68.78  235.00  -55.66  148.82
    7.00  -68.94  250.00  -57.63  158.44
    8.00  -69.87  265.00  -60.64  167.36
    9.00  -70.02  280.00  -63.34  176.97
   10.00  -69.98  295.00  -66.32  187.03
   11.00  -69.27  310.00  -69.17  199.06
   12.00  -68.94  325.00  -72.64  212.20
   13.00  -68.88  340.00  -76.40  228.00
   14.00  -69.09  355.00  -80.13  249.87
   15.00  -69.55   10.00  -82.97  285.85
   16.00  -70.19   25.00  -83.05  335.75
   17.00  -70.75   40.00  -80.17   10.90
   18.00  -70.35   55.00  -75.62   28.17
   19.00  -69.50   70.00  -70.68   39.69
   20.00  -68.35   85.00  -65.68   49.46
   21.00  -67.69  100.00  -61.51   59.87
   22.00  -66.09  115.00  -56.85   68.87
   23.00  -64.61  130.00  -52.88   78.29
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.12  145.00  -55.73   91.91
    1.00  -70.55  160.00  -55.93  102.16
    2.00  -71.83  175.00  -56.45  111.75
    3.00  -76.72  190.00  -61.12  121.06
    4.00  -79.11  205.00  -63.73  128.07
    5.00  -79.60  220.00  -64.78  134.49
    6.00  -79.07  235.00  -65.23  141.48
    7.00  -78.58  250.00  -66.17  148.71
    8.00  -78.97  265.00  -68.24  154.57
    9.00  -78.77  280.00  -70.17  161.13
   10.00  -78.94  295.00  -72.66  166.33
   11.00  -78.74  310.00  -75.23  171.97
   12.00  -78.64  325.00  -78.09  176.30
   13.00  -78.16  340.00  -81.13  181.26
   14.00  -77.87  355.00  -84.40  181.30
   15.00  -77.32   10.00  -87.74  164.99
   16.00  -77.21   25.00  -87.24   72.74
   17.00  -76.62   40.00  -83.62   53.99
   18.00  -76.85   55.00  -79.81   59.43
   19.00  -76.09   70.00  -75.76   61.65
   20.00  -75.18   85.00  -71.62   65.98
   21.00  -73.21  100.00  -66.73   69.59
   22.00  -71.09  115.00  -61.85   75.16
   23.00  -69.61  130.00  -58.00   82.83
</PRE>


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