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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>
05 Apr 1997 13:45:55 yearsecs   8171155
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.16  228.93  -52.61  146.00
    1.00  -66.42  243.93  -54.57  156.06
    2.00  -67.15  258.93  -57.32  165.85
    3.00  -67.87  273.93  -60.40  175.51
    4.00  -67.40  288.93  -62.86  186.67
    5.00  -67.96  303.93  -66.65  196.88
    6.00  -67.78  318.93  -70.17  209.35
    7.00  -68.03  333.93  -74.18  223.36
    8.00  -69.07  348.93  -78.73  239.61
    9.00  -69.45    3.93  -82.14  268.54
   10.00  -69.21   18.93  -82.67  315.15
   11.00  -69.01   33.93  -79.99  353.54
   12.00  -69.03   48.93  -76.07   17.00
   13.00  -69.29   63.93  -72.13   33.70
   14.00  -69.77   78.93  -68.59   47.68
   15.00  -70.47   93.93  -65.59   60.27
   16.00  -71.15  108.93  -63.04   71.42
   17.00  -71.29  123.93  -60.56   80.92
   18.00  -71.45  138.93  -58.72   90.09
   19.00  -70.82  153.93  -56.64   98.62
   20.00  -70.01  168.93  -54.87  107.43
   21.00  -69.22  183.93  -53.59  116.58
   22.00  -68.58  198.93  -53.00  125.98
   23.00  -67.51  213.93  -52.63  135.70
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.16  228.93  -57.28  143.83
    1.00  -72.25  243.93  -59.84  152.11
    2.00  -72.98  258.93  -62.42  160.24
    3.00  -78.36  273.93  -68.99  159.54
    4.00  -80.18  288.93  -72.38  160.57
    5.00  -80.34  303.93  -74.80  164.19
    6.00  -80.05  318.93  -77.25  168.38
    7.00  -79.12  333.93  -79.93  174.78
    8.00  -79.22  348.93  -82.83  171.55
    9.00  -79.24    3.93  -85.36  156.17
   10.00  -79.03   18.93  -86.44  114.92
   11.00  -79.10   33.93  -84.46   83.06
   12.00  -79.36   48.93  -81.42   76.36
   13.00  -79.18   63.93  -78.30   74.75
   14.00  -79.01   78.93  -75.17   76.92
   15.00  -78.83   93.93  -72.22   80.93
   16.00  -78.66  108.93  -69.56   85.96
   17.00  -78.47  123.93  -67.26   91.62
   18.00  -79.48  138.93  -66.48   99.47
   19.00  -79.72  153.93  -65.50  105.97
   20.00  -78.93  168.93  -63.88  111.78
   21.00  -77.12  183.93  -61.59  118.10
   22.00  -74.29  198.93  -58.71  125.72
   23.00  -72.51  213.93  -57.47  134.46
</PRE>


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