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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 Jul 1997 19:14:00 yearsecs  17349240
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.69  140.54  -50.63   85.16
    1.00  -63.66  155.54  -49.26   95.78
    2.00  -64.45  170.54  -49.19  106.60
    3.00  -65.23  185.54  -49.57  117.05
    4.00  -65.00  200.54  -49.51  127.17
    5.00  -66.15  215.54  -51.43  137.05
    6.00  -66.40  230.54  -52.99  146.99
    7.00  -66.27  245.54  -54.64  157.26
    8.00  -66.97  260.54  -57.40  167.11
    9.00  -66.54  275.54  -59.53  178.08
   10.00  -66.05  290.54  -62.02  189.63
   11.00  -65.78  305.54  -65.16  201.64
   12.00  -65.83  320.54  -68.92  214.55
   13.00  -66.09  335.54  -72.94  229.69
   14.00  -66.58  350.54  -76.90  249.35
   15.00  -67.30    5.54  -80.18  278.24
   16.00  -68.23   20.54  -81.44  319.19
   17.00  -69.30   35.54  -79.91  357.60
   18.00  -69.22   50.54  -75.80   19.54
   19.00  -68.60   65.54  -71.01   33.41
   20.00  -67.40   80.54  -65.83   43.95
   21.00  -66.34   95.54  -61.13   54.35
   22.00  -65.27  110.54  -56.84   64.59
   23.00  -64.25  125.54  -53.16   74.75
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.61  140.54  -58.70   91.19
    1.00  -72.71  155.54  -58.42  100.82
    2.00  -73.70  170.54  -58.52  109.88
    3.00  -76.03  185.54  -60.45  118.69
    4.00  -78.50  200.54  -63.01  126.14
    5.00  -79.21  215.54  -64.18  132.75
    6.00  -78.59  230.54  -64.44  139.92
    7.00  -77.99  245.54  -65.20  147.42
    8.00  -78.74  260.54  -67.50  153.10
    9.00  -78.44  275.54  -69.28  160.05
   10.00  -78.49  290.54  -71.66  165.98
   11.00  -78.36  305.54  -74.23  171.90
   12.00  -78.20  320.54  -77.07  177.33
   13.00  -77.98  335.54  -80.15  181.93
   14.00  -78.05  350.54  -83.40  181.16
   15.00  -77.68    5.54  -86.68  171.91
   16.00  -77.67   20.54  -87.68   97.87
   17.00  -76.63   35.54  -84.78   53.77
   18.00  -76.61   50.54  -80.88   56.50
   19.00  -76.85   65.54  -77.21   63.19
   20.00  -76.08   80.54  -73.26   66.60
   21.00  -74.14   95.54  -68.48   69.03
   22.00  -72.94  110.54  -64.41   75.29
   23.00  -71.90  125.54  -60.91   82.62
</PRE>


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