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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
30 Apr 1997 18:50:00 yearsecs  10349400
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.56  145.39  -50.00   88.53
    1.00  -64.83  160.39  -50.12   99.70
    2.00  -65.69  175.39  -50.25  110.27
    3.00  -67.29  190.39  -51.61  120.49
    4.00  -67.04  205.39  -51.71  130.23
    5.00  -67.89  220.39  -53.46  139.77
    6.00  -68.07  235.39  -55.06  149.44
    7.00  -68.76  250.39  -57.52  158.83
    8.00  -70.29  265.39  -61.07  167.17
    9.00  -71.43  280.39  -64.60  175.21
   10.00  -72.02  295.39  -68.04  183.56
   11.00  -70.76  310.39  -70.43  196.20
   12.00  -70.07  325.39  -73.62  209.65
   13.00  -69.81  340.39  -77.23  225.56
   14.00  -69.89  355.39  -80.91  247.57
   15.00  -70.31   10.39  -83.81  285.29
   16.00  -70.76   25.39  -83.58  338.86
   17.00  -70.72   40.39  -80.04   11.40
   18.00  -70.74   55.39  -75.86   29.90
   19.00  -69.95   70.39  -71.00   41.18
   20.00  -68.98   85.39  -66.20   51.02
   21.00  -68.05  100.39  -61.79   60.72
   22.00  -67.06  115.39  -57.77   70.27
   23.00  -65.07  130.39  -53.31   78.96
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.56  145.39  -55.12   91.76
    1.00  -69.83  160.39  -55.18  102.03
    2.00  -70.69  175.39  -55.28  111.64
    3.00  -76.83  190.39  -61.24  121.27
    4.00  -78.94  205.39  -63.57  128.29
    5.00  -79.38  220.39  -64.58  134.80
    6.00  -78.59  235.39  -64.82  142.12
    7.00  -77.42  250.39  -65.20  150.41
    8.00  -77.46  265.39  -67.09  157.43
    9.00  -77.40  280.39  -69.27  164.41
   10.00  -77.11  295.39  -71.65  171.77
   11.00  -77.16  310.39  -74.58  177.95
   12.00  -77.51  325.39  -77.86  182.00
   13.00  -77.33  340.39  -81.13  186.97
   14.00  -77.15  355.39  -84.60  189.05
   15.00  -76.97   10.39  -88.06  171.11
   16.00  -76.78   25.39  -87.34   62.67
   17.00  -76.58   40.39  -83.51   53.60
   18.00  -77.82   55.39  -79.95   65.62
   19.00  -78.14   70.39  -76.62   70.84
   20.00  -77.27   85.39  -72.94   72.71
   21.00  -75.24  100.39  -68.38   74.16
   22.00  -72.06  115.39  -62.72   76.79
   23.00  -70.07  130.39  -58.41   83.55
</PRE>


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