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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>
06 Apr 1997 13:33:37 yearsecs   8256817
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.91  231.73  -48.92  149.57
    1.00  -63.14  246.73  -51.94  159.90
    2.00  -64.22  261.73  -55.13  170.16
    3.00  -65.15  276.73  -58.52  180.38
    4.00  -64.91  291.73  -61.26  191.96
    5.00  -66.08  306.73  -65.71  202.15
    6.00  -66.34  321.73  -69.67  214.73
    7.00  -66.20  336.73  -73.33  230.87
    8.00  -66.83  351.73  -77.38  250.73
    9.00  -66.37    6.73  -79.34  282.78
   10.00  -65.96   21.73  -78.75  320.72
   11.00  -65.77   36.73  -75.74  351.12
   12.00  -65.80   51.73  -71.81   12.33
   13.00  -66.06   66.73  -68.00   28.85
   14.00  -66.54   81.73  -64.64   43.34
   15.00  -67.25   96.73  -61.79   56.71
   16.00  -68.18  111.73  -59.59   69.07
   17.00  -68.31  126.73  -57.16   79.41
   18.00  -68.37  141.73  -55.30   89.26
   19.00  -68.55  156.73  -54.15   99.04
   20.00  -67.34  171.73  -52.05  108.29
   21.00  -65.40  186.73  -49.72  117.88
   22.00  -63.83  201.73  -48.41  128.03
   23.00  -62.42  216.73  -47.95  138.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.91  231.73  -53.59  147.57
    1.00  -68.14  246.73  -56.48  156.87
    2.00  -69.22  261.73  -59.56  165.90
    3.00  -71.84  276.73  -64.28  172.34
    4.00  -74.90  291.73  -69.46  175.45
    5.00  -75.72  306.73  -73.03  181.01
    6.00  -74.72  321.73  -75.79  192.18
    7.00  -74.22  336.73  -79.17  203.69
    8.00  -74.78  351.73  -83.26  211.57
    9.00  -74.60    6.73  -87.08  235.92
   10.00  -74.96   21.73  -88.16    7.47
   11.00  -74.84   36.73  -84.02   34.22
   12.00  -74.73   51.73  -79.79   45.01
   13.00  -74.60   66.73  -75.70   53.79
   14.00  -74.83   81.73  -72.13   63.18
   15.00  -74.48   96.73  -68.51   70.48
   16.00  -74.56  111.73  -65.68   78.76
   17.00  -73.31  126.73  -62.11   85.07
   18.00  -73.37  141.73  -60.32   93.52
   19.00  -73.83  156.73  -59.46  102.25
   20.00  -72.90  171.73  -57.66  110.23
   21.00  -70.40  186.73  -54.73  118.49
   22.00  -68.83  201.73  -53.32  127.74
   23.00  -67.42  216.73  -52.73  137.54
</PRE>


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