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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>
21 May 1997 17:54:33 yearsecs  12160473
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.18  160.31  -49.46   99.36
    1.00  -63.91  175.31  -48.46  109.77
    2.00  -64.81  190.31  -49.13  120.24
    3.00  -65.70  205.31  -50.39  130.32
    4.00  -65.48  220.31  -51.16  140.41
    5.00  -66.56  235.31  -53.66  150.13
    6.00  -66.77  250.31  -55.73  160.21
    7.00  -66.63  265.31  -57.86  170.73
    8.00  -67.33  280.31  -61.09  180.60
    9.00  -66.83  295.31  -63.72  192.15
   10.00  -66.40  310.31  -66.85  204.57
   11.00  -66.22  325.31  -70.47  218.40
   12.00  -66.26  340.31  -74.25  235.20
   13.00  -66.52  355.31  -77.81  257.86
   14.00  -67.00   10.31  -80.27  290.94
   15.00  -67.71   25.31  -80.27  331.19
   16.00  -68.64   40.31  -78.02    3.73
   17.00  -69.67   55.31  -74.90   26.28
   18.00  -69.53   70.31  -70.63   40.04
   19.00  -68.94   85.31  -66.19   50.88
   20.00  -67.80  100.31  -61.56   60.28
   21.00  -66.76  115.31  -57.48   69.87
   22.00  -65.73  130.31  -54.00   79.45
   23.00  -64.78  145.31  -51.26   89.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.52  160.31  -58.89  104.04
    1.00  -74.52  175.31  -59.16  112.84
    2.00  -75.45  190.31  -59.82  121.09
    3.00  -78.04  205.31  -62.64  128.46
    4.00  -80.17  220.31  -65.36  134.25
    5.00  -80.73  235.31  -66.81  139.86
    6.00  -80.24  250.31  -67.63  146.44
    7.00  -79.81  265.31  -68.93  153.08
    8.00  -80.45  280.31  -71.32  157.00
    9.00  -80.56  295.31  -73.54  161.23
   10.00  -80.39  310.31  -75.86  165.39
   11.00  -79.89  325.31  -78.37  169.91
   12.00  -79.82  340.31  -81.10  169.77
   13.00  -79.59  355.31  -83.82  164.16
   14.00  -79.61   10.31  -85.70  139.67
   15.00  -79.26   25.31  -85.67   98.80
   16.00  -79.29   40.31  -83.17   79.38
   17.00  -78.54   55.31  -80.07   70.24
   18.00  -78.59   70.31  -76.79   72.89
   19.00  -78.58   85.31  -73.71   77.21
   20.00  -77.80  100.31  -70.37   80.36
   21.00  -76.04  115.31  -66.38   83.25
   22.00  -74.79  130.31  -63.05   88.92
   23.00  -73.79  145.31  -60.38   95.90
</PRE>


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