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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>
04 Oct 1997 12:17:40 yearsecs  23890660
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.78  243.95  -49.36  159.06
    1.00  -62.05  258.95  -52.73  169.62
    2.00  -62.86  273.95  -55.96  180.42
    3.00  -67.66  288.95  -63.09  186.34
    4.00  -67.31  303.95  -66.11  197.97
    5.00  -68.04  318.95  -70.39  208.85
    6.00  -68.06  333.95  -74.21  223.31
    7.00  -68.68  348.95  -78.41  240.92
    8.00  -69.36    3.95  -82.06  268.89
    9.00  -69.50   18.95  -82.99  315.44
   10.00  -69.14   33.95  -80.12  354.01
   11.00  -68.82   48.95  -75.85   16.39
   12.00  -68.75   63.95  -71.59   32.29
   13.00  -68.92   78.95  -67.76   45.78
   14.00  -69.34   93.95  -64.50   58.16
   15.00  -70.00  108.95  -61.93   69.69
   16.00  -70.64  123.95  -59.92   80.16
   17.00  -70.54  138.95  -57.80   89.28
   18.00  -70.87  153.95  -56.69   98.67
   19.00  -70.18  168.95  -55.05  107.51
   20.00  -69.37  183.95  -53.73  116.62
   21.00  -68.60  198.95  -53.02  126.00
   22.00  -65.03  213.95  -50.24  136.22
   23.00  -62.65  228.95  -49.31  147.31
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.78  243.95  -53.99  156.45
    1.00  -67.05  258.95  -57.23  165.94
    2.00  -67.86  273.95  -60.39  175.54
    3.00  -74.78  288.95  -68.84  174.24
    4.00  -77.10  303.95  -73.27  175.49
    5.00  -77.49  318.95  -76.49  179.93
    6.00  -76.44  333.95  -79.42  190.49
    7.00  -75.36  348.95  -82.75  204.79
    8.00  -75.63    3.95  -86.72  211.59
    9.00  -75.78   18.95  -89.22   34.86
   10.00  -75.62   33.95  -85.07   40.74
   11.00  -75.82   48.95  -81.04   50.35
   12.00  -76.25   63.95  -77.33   59.64
   13.00  -76.12   78.95  -73.65   65.97
   14.00  -75.98   93.95  -70.27   72.74
   15.00  -75.84  108.95  -67.28   79.76
   16.00  -75.70  123.95  -64.77   86.95
   17.00  -75.54  138.95  -62.74   94.32
   18.00  -76.88  153.95  -62.70  103.19
   19.00  -77.13  168.95  -62.06  110.72
   20.00  -76.07  183.95  -60.52  117.87
   21.00  -73.71  198.95  -58.13  125.76
   22.00  -70.03  213.95  -55.06  135.13
   23.00  -67.65  228.95  -53.99  145.43
</PRE>


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