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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>
25 Jul 1997 23:15:44 yearsecs  17795744
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.65   80.63  -63.95   40.77
    1.00  -65.77   95.63  -60.52   53.56
    2.00  -66.63  110.63  -58.23   66.31
    3.00  -67.48  125.63  -56.48   77.84
    4.00  -67.11  140.63  -54.13   87.59
    5.00  -67.78  155.63  -53.45   97.91
    6.00  -67.69  170.63  -52.46  107.68
    7.00  -67.80  185.63  -52.14  117.46
    8.00  -68.62  200.63  -53.08  127.06
    9.00  -68.82  215.63  -54.00  136.48
   10.00  -68.55  230.63  -55.00  146.12
   11.00  -68.36  245.63  -56.54  155.99
   12.00  -68.40  260.63  -58.67  165.93
   13.00  -68.66  275.63  -61.38  175.78
   14.00  -69.14  290.63  -64.70  185.39
   15.00  -69.85  305.63  -68.60  194.70
   16.00  -70.60  320.63  -72.82  204.28
   17.00  -71.00  335.63  -76.91  216.29
   18.00  -71.03  350.63  -80.72  234.39
   19.00  -70.44    5.63  -83.37  269.61
   20.00  -69.56   20.63  -82.91  320.91
   21.00  -68.71   35.63  -79.27  355.91
   22.00  -67.97   50.63  -74.50   16.06
   23.00  -66.77   65.63  -69.08   29.26
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.65   80.63  -68.97   51.06
    1.00  -71.73   95.63  -66.36   63.90
    2.00  -72.56  110.63  -64.05   74.72
    3.00  -77.67  125.63  -66.33   90.94
    4.00  -79.68  140.63  -66.51  100.46
    5.00  -80.03  155.63  -65.69  107.00
    6.00  -79.31  170.63  -64.20  112.78
    7.00  -78.39  185.63  -62.87  119.20
    8.00  -78.50  200.63  -63.02  126.19
    9.00  -78.55  215.63  -63.53  133.11
   10.00  -78.52  230.63  -64.39  140.02
   11.00  -78.49  245.63  -65.65  146.87
   12.00  -78.73  260.63  -67.51  153.15
   13.00  -78.54  275.63  -69.36  159.88
   14.00  -78.42  290.63  -71.63  166.20
   15.00  -78.21  305.63  -74.17  172.45
   16.00  -78.18  320.63  -77.09  177.42
   17.00  -77.97  335.63  -80.17  182.02
   18.00  -78.82  350.63  -83.27  174.22
   19.00  -78.87    5.63  -85.88  156.43
   20.00  -77.99   20.63  -87.37  101.34
   21.00  -76.08   35.63  -84.70   47.18
   22.00  -73.50   50.63  -79.37   37.30
   23.00  -71.77   65.63  -73.91   42.64
</PRE>


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