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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>
20 Sep 1997 15:07:20 yearsecs  22691240
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.13  205.78  -48.89  130.79
    1.00  -63.89  220.78  -49.69  141.17
    2.00  -64.77  235.78  -52.06  151.28
    3.00  -65.65  250.78  -54.78  161.29
    4.00  -65.43  265.78  -56.87  172.12
    5.00  -66.51  280.78  -60.47  181.88
    6.00  -66.72  295.78  -63.73  192.66
    7.00  -66.58  310.78  -67.12  204.66
    8.00  -67.26  325.78  -71.47  216.76
    9.00  -66.81  340.78  -74.85  234.55
   10.00  -66.39  355.78  -77.77  259.05
   11.00  -66.20   10.78  -79.42  293.06
   12.00  -66.23   25.78  -78.52  330.37
   13.00  -66.49   40.78  -75.55  359.03
   14.00  -66.97   55.78  -72.00   19.55
   15.00  -67.68   70.78  -68.66   36.05
   16.00  -68.61   85.78  -65.75   50.59
   17.00  -69.64  100.78  -63.27   63.56
   18.00  -69.51  115.78  -60.16   73.54
   19.00  -68.91  130.78  -57.19   82.65
   20.00  -67.77  145.78  -54.28   91.46
   21.00  -66.73  160.78  -52.02  100.79
   22.00  -65.69  175.78  -50.24  110.53
   23.00  -64.73  190.78  -49.06  120.56
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.55  205.78  -55.16  130.05
    1.00  -71.65  220.78  -57.07  138.75
    2.00  -72.66  235.78  -59.32  147.04
    3.00  -75.62  250.78  -63.66  152.76
    4.00  -78.11  265.78  -67.66  156.48
    5.00  -78.71  280.78  -70.25  161.57
    6.00  -78.02  295.78  -72.27  169.38
    7.00  -77.37  310.78  -74.76  177.37
    8.00  -78.02  325.78  -78.09  179.60
    9.00  -77.78  340.78  -81.27  183.91
   10.00  -77.93  355.78  -84.56  180.16
   11.00  -77.71   10.78  -87.54  154.79
   12.00  -77.64   25.78  -86.84   78.39
   13.00  -77.42   40.78  -83.45   61.88
   14.00  -77.50   55.78  -79.79   63.73
   15.00  -77.16   70.78  -76.11   66.54
   16.00  -77.24   85.78  -72.84   72.78
   17.00  -76.40  100.78  -69.23   77.04
   18.00  -76.50  115.78  -66.71   84.34
   19.00  -76.57  130.78  -64.67   91.60
   20.00  -75.71  145.78  -62.23   97.99
   21.00  -73.69  160.78  -59.04  104.42
   22.00  -72.21  175.78  -56.80  112.33
   23.00  -70.97  190.78  -55.29  121.00
</PRE>


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