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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>
20 May 1997 01:02:38 yearsecs  12013358
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.96   52.83  -64.23    4.50
    1.00  -61.16   67.83  -61.84   21.64
    2.00  -61.86   82.83  -59.08   36.75
    3.00  -67.74   97.83  -62.04   58.32
    4.00  -67.39  112.83  -58.58   68.85
    5.00  -68.12  127.83  -56.80   79.95
    6.00  -68.17  142.83  -54.99   89.82
    7.00  -68.75  157.83  -54.26   99.85
    8.00  -69.33  172.83  -54.01  109.63
    9.00  -69.48  187.83  -53.81  119.06
   10.00  -69.14  202.83  -53.66  128.40
   11.00  -68.83  217.83  -54.16  137.86
   12.00  -68.78  232.83  -55.43  147.43
   13.00  -68.97  247.83  -57.37  157.01
   14.00  -69.40  262.83  -59.89  166.43
   15.00  -70.08  277.83  -63.00  175.47
   16.00  -70.52  292.83  -66.30  184.66
   17.00  -70.39  307.83  -69.54  195.18
   18.00  -70.98  322.83  -73.64  205.03
   19.00  -70.31  337.83  -76.96  220.96
   20.00  -69.50  352.83  -80.01  244.43
   21.00  -68.35    7.83  -81.52  282.06
   22.00  -64.52   22.83  -76.96  322.46
   23.00  -61.99   37.83  -70.91  347.67
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.96   52.83  -70.53   11.98
    1.00  -66.16   67.83  -67.81   30.09
    2.00  -66.86   82.83  -64.70   44.85
    3.00  -73.99   97.83  -67.87   69.99
    4.00  -76.34  112.83  -67.04   82.62
    5.00  -76.14  127.83  -64.65   89.54
    6.00  -75.70  142.83  -62.50   96.48
    7.00  -74.60  157.83  -60.15  103.39
    8.00  -74.98  172.83  -59.72  111.68
    9.00  -75.23  187.83  -59.62  119.76
   10.00  -75.14  202.83  -59.65  127.74
   11.00  -75.41  217.83  -60.53  135.60
   12.00  -75.91  232.83  -62.09  143.15
   13.00  -75.82  247.83  -63.50  150.99
   14.00  -75.73  262.83  -65.32  158.87
   15.00  -75.63  277.83  -67.52  166.75
   16.00  -75.52  292.83  -70.11  174.61
   17.00  -75.39  307.83  -73.06  182.56
   18.00  -76.70  322.83  -77.00  184.76
   19.00  -76.92  337.83  -80.46  189.02
   20.00  -75.81  352.83  -83.86  203.01
   21.00  -73.35    7.83  -86.44  257.89
   22.00  -69.52   22.83  -82.62  327.61
   23.00  -66.99   37.83  -76.85  355.37
</PRE>


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