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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
07 Aug 1997 22:18:40 yearsecs  18915520
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.99   95.03  -59.81   51.90
    1.00  -65.59  110.03  -57.28   64.59
    2.00  -66.51  125.03  -55.58   76.48
    3.00  -67.44  140.03  -54.54   87.44
    4.00  -67.18  155.03  -52.88   97.19
    5.00  -68.01  170.03  -52.80  107.40
    6.00  -68.15  185.03  -52.50  117.12
    7.00  -68.79  200.03  -53.23  126.67
    8.00  -70.23  215.03  -55.32  135.74
    9.00  -70.60  230.03  -56.85  144.78
   10.00  -69.97  245.03  -57.91  154.50
   11.00  -69.38  260.03  -59.45  164.62
   12.00  -69.10  275.03  -61.66  174.85
   13.00  -69.11  290.03  -64.54  185.03
   14.00  -69.39  305.03  -68.09  195.15
   15.00  -69.94  320.03  -72.17  205.47
   16.00  -70.50  335.03  -76.39  217.40
   17.00  -70.53  350.03  -80.18  235.74
   18.00  -70.59    5.03  -83.43  267.21
   19.00  -69.84   20.03  -83.28  319.33
   20.00  -68.90   35.03  -79.61  355.36
   21.00  -68.06   50.03  -74.76   15.58
   22.00  -67.47   65.03  -69.99   30.24
   23.00  -66.37   80.03  -64.88   41.55
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.99   95.03  -64.88   60.12
    1.00  -71.20  110.03  -62.88   72.20
    2.00  -72.04  125.03  -61.13   82.49
    3.00  -77.78  140.03  -64.78   97.58
    4.00  -79.76  155.03  -65.46  106.47
    5.00  -80.19  170.03  -65.11  113.08
    6.00  -79.49  185.03  -64.01  119.19
    7.00  -78.45  200.03  -62.95  125.92
    8.00  -78.53  215.03  -63.48  132.84
    9.00  -78.46  230.03  -64.29  139.79
   10.00  -78.28  245.03  -65.40  146.85
   11.00  -78.33  260.03  -67.11  153.54
   12.00  -78.59  275.03  -69.31  159.51
   13.00  -78.39  290.03  -71.51  166.07
   14.00  -78.18  305.03  -74.05  172.35
   15.00  -77.98  320.03  -76.90  178.16
   16.00  -77.78  335.03  -80.01  183.08
   17.00  -77.56  350.03  -83.34  185.78
   18.00  -78.69    5.03  -85.94  159.65
   19.00  -78.97   20.03  -86.45  111.06
   20.00  -78.13   35.03  -84.67   71.85
   21.00  -76.22   50.03  -80.89   53.60
   22.00  -73.23   65.03  -75.21   47.30
   23.00  -71.37   80.03  -69.77   52.39
</PRE>


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