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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>
10 May 1997 18:29:24 yearsecs  11212164
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.03  150.40  -52.08   93.45
    1.00  -66.42  165.40  -51.44  103.76
    2.00  -67.16  180.40  -51.59  113.94
    3.00  -67.89  195.40  -52.25  123.75
    4.00  -67.43  210.40  -52.33  133.43
    5.00  -68.00  225.40  -53.99  142.97
    6.00  -67.83  240.40  -55.41  152.86
    7.00  -68.09  255.40  -57.63  162.68
    8.00  -69.09  270.40  -60.85  171.76
    9.00  -69.48  285.40  -63.93  181.31
   10.00  -69.31  300.40  -66.96  191.95
   11.00  -69.08  315.40  -70.34  203.69
   12.00  -69.09  330.40  -74.13  216.95
   13.00  -69.32  345.40  -78.10  233.59
   14.00  -69.79    0.40  -81.86  258.53
   15.00  -70.49   15.40  -84.21  303.17
   16.00  -71.15   30.40  -82.97  354.23
   17.00  -71.29   45.40  -79.16   20.88
   18.00  -71.44   60.40  -75.07   37.11
   19.00  -70.81   75.40  -70.46   47.48
   20.00  -69.99   90.40  -65.96   56.81
   21.00  -69.20  105.40  -61.86   66.08
   22.00  -68.56  120.40  -58.41   75.46
   23.00  -67.34  135.40  -54.98   84.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.03  150.40  -57.15   96.62
    1.00  -72.16  165.40  -57.22  106.23
    2.00  -72.93  180.40  -57.40  115.21
    3.00  -78.37  195.40  -62.82  123.76
    4.00  -80.24  210.40  -65.03  130.06
    5.00  -80.64  225.40  -66.09  135.99
    6.00  -79.96  240.40  -66.50  142.81
    7.00  -78.96  255.40  -67.08  150.53
    8.00  -79.03  270.40  -68.99  156.69
    9.00  -79.03  285.40  -71.17  162.57
   10.00  -78.82  300.40  -73.53  168.58
   11.00  -78.93  315.40  -76.31  172.73
   12.00  -78.99  330.40  -79.23  175.31
   13.00  -78.85  345.40  -82.22  175.69
   14.00  -78.66    0.40  -85.18  167.66
   15.00  -78.48   15.40  -87.10  127.53
   16.00  -78.30   30.40  -85.56   78.97
   17.00  -78.11   45.40  -82.32   67.40
   18.00  -79.20   60.40  -79.04   74.55
   19.00  -79.49   75.40  -76.05   78.12
   20.00  -78.71   90.40  -72.80   79.33
   21.00  -76.90  105.40  -68.78   80.37
   22.00  -74.08  120.40  -63.79   82.64
   23.00  -72.34  135.40  -60.02   88.89
</PRE>


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