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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>
08 Oct 1997 18:12:38 yearsecs  24257558
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.64  155.01  -48.25   94.93
    1.00  -63.17  170.01  -47.92  105.84
    2.00  -63.72  185.01  -48.06  116.49
    3.00  -64.25  200.01  -48.76  126.83
    4.00  -63.95  215.01  -49.28  137.16
    5.00  -65.27  230.01  -51.88  147.09
    6.00  -65.64  245.01  -53.99  157.26
    7.00  -65.53  260.01  -56.03  167.90
    8.00  -66.23  275.01  -59.16  178.03
    9.00  -65.59  290.01  -61.51  189.80
   10.00  -65.22  305.01  -64.55  202.04
   11.00  -64.99  320.01  -68.05  215.51
   12.00  -65.02  335.01  -71.85  231.23
   13.00  -65.28  350.01  -75.56  251.39
   14.00  -65.76    5.01  -78.53  279.66
   15.00  -66.47   20.01  -79.50  316.72
   16.00  -67.40   35.01  -78.00  351.35
   17.00  -68.56   50.01  -75.28   16.92
   18.00  -68.59   65.01  -71.14   32.89
   19.00  -67.89   80.01  -66.47   44.49
   20.00  -66.56   95.01  -61.48   54.27
   21.00  -65.46  110.01  -57.14   64.41
   22.00  -64.27  125.01  -53.27   74.39
   23.00  -63.08  140.01  -50.06   84.38
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.77  155.01  -60.52  101.99
    1.00  -75.81  170.01  -60.68  110.56
    2.00  -76.72  185.01  -61.17  118.55
    3.00  -77.67  200.01  -62.16  125.99
    4.00  -79.95  215.01  -64.90  132.14
    5.00  -80.83  230.01  -66.55  137.66
    6.00  -80.42  245.01  -67.30  144.08
    7.00  -80.00  260.01  -68.45  150.66
    8.00  -80.86  275.01  -70.88  154.21
    9.00  -80.73  290.01  -72.84  159.20
   10.00  -80.89  305.01  -75.16  162.32
   11.00  -80.88  320.01  -77.56  164.47
   12.00  -80.76  335.01  -80.03  164.65
   13.00  -80.50  350.01  -82.53  160.97
   14.00  -80.48    5.01  -84.44  145.06
   15.00  -80.04   20.01  -85.33  115.26
   16.00  -79.80   35.01  -83.87   88.16
   17.00  -78.45   50.01  -81.26   69.60
   18.00  -78.15   65.01  -77.82   69.49
   19.00  -78.64   80.01  -74.79   75.76
   20.00  -78.08   95.01  -71.54   79.03
   21.00  -76.37  110.01  -67.55   81.35
   22.00  -75.66  125.01  -64.59   87.43
   23.00  -74.93  140.01  -62.04   94.19
</PRE>


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