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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>
31 Oct 1997 13:34:00 yearsecs  26228040
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.30  221.35  -52.03  140.88
    1.00  -66.06  236.35  -53.32  151.08
    2.00  -66.99  251.35  -56.07  160.77
    3.00  -67.90  266.35  -59.14  170.27
    4.00  -67.61  281.35  -61.53  181.01
    5.00  -68.33  296.35  -65.24  190.67
    6.00  -68.29  311.35  -68.71  202.04
    7.00  -68.32  326.35  -72.50  214.92
    8.00  -69.11  341.35  -76.92  228.99
    9.00  -69.59  356.35  -80.86  250.63
   10.00  -69.20   11.35  -82.69  290.81
   11.00  -68.92   26.35  -81.44  336.10
   12.00  -68.87   41.35  -77.97    6.04
   13.00  -69.04   56.35  -74.00   25.52
   14.00  -69.45   71.35  -70.27   40.72
   15.00  -70.08   86.35  -67.02   54.03
   16.00  -70.78  101.35  -64.24   65.89
   17.00  -71.17  116.35  -61.69   76.12
   18.00  -71.09  131.35  -59.30   85.19
   19.00  -70.29  146.35  -56.78   93.62
   20.00  -69.52  161.35  -54.81  102.48
   21.00  -68.75  176.35  -53.30  111.69
   22.00  -67.22  191.35  -51.54  121.11
   23.00  -66.43  206.35  -51.15  130.93
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.30  221.35  -56.78  139.22
    1.00  -73.14  236.35  -59.83  147.04
    2.00  -74.64  251.35  -62.87  154.14
    3.00  -79.53  266.35  -68.85  154.04
    4.00  -81.65  281.35  -72.17  153.98
    5.00  -82.33  296.35  -74.41  155.15
    6.00  -82.25  311.35  -76.41  157.39
    7.00  -82.32  326.35  -78.49  156.96
    8.00  -83.62  341.35  -79.78  146.39
    9.00  -82.56  356.35  -81.90  143.55
   10.00  -81.82   11.35  -83.47  130.59
   11.00  -81.16   26.35  -83.80  108.22
   12.00  -80.79   41.35  -82.30   90.26
   13.00  -80.08   56.35  -79.87   79.96
   14.00  -79.45   71.35  -76.84   77.19
   15.00  -78.66   86.35  -73.54   77.81
   16.00  -78.01  101.35  -70.34   81.36
   17.00  -77.03  116.35  -67.08   85.61
   18.00  -77.04  131.35  -65.04   92.56
   19.00  -75.62  146.35  -62.09   98.20
   20.00  -75.12  161.35  -60.44  105.62
   21.00  -73.96  176.35  -58.55  113.22
   22.00  -72.22  191.35  -56.55  121.43
   23.00  -71.43  206.35  -56.05  130.27
</PRE>


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