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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>
19 Sep 1997 11:54:52 yearsecs  22593292
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.14  251.67  -50.78  164.68
    1.00  -62.44  266.67  -54.33  175.20
    2.00  -63.27  281.67  -57.76  185.99
    3.00  -68.07  296.67  -65.09  191.32
    4.00  -67.83  311.67  -68.40  203.17
    5.00  -68.64  326.67  -72.83  214.48
    6.00  -68.83  341.67  -76.78  230.23
    7.00  -69.31  356.67  -80.67  252.35
    8.00  -69.74   11.67  -83.29  290.90
    9.00  -69.82   26.67  -82.36  339.31
   10.00  -69.40   41.67  -78.43    8.28
   11.00  -69.03   56.67  -73.89   25.80
   12.00  -68.90   71.67  -69.65   39.63
   13.00  -69.01   86.67  -65.92   52.08
   14.00  -69.38  101.67  -62.83   63.76
   15.00  -70.00  116.67  -60.49   74.75
   16.00  -70.60  131.67  -58.77   84.88
   17.00  -70.64  146.67  -57.10   94.08
   18.00  -70.76  161.67  -56.03  103.29
   19.00  -70.09  176.67  -54.63  112.25
   20.00  -69.32  191.67  -53.64  121.44
   21.00  -68.60  206.67  -53.29  130.87
   22.00  -65.23  221.67  -51.04  141.41
   23.00  -62.92  236.67  -50.44  152.73
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.14  251.67  -55.35  161.58
    1.00  -67.44  266.67  -58.78  170.94
    2.00  -68.27  281.67  -62.17  180.41
    3.00  -75.07  296.67  -70.55  177.65
    4.00  -77.20  311.67  -74.86  178.31
    5.00  -78.01  326.67  -78.28  179.90
    6.00  -77.27  341.67  -81.41  187.62
    7.00  -76.12  356.67  -84.89  201.17
    8.00  -76.30   11.67  -88.70  187.18
    9.00  -76.38   26.67  -87.11   52.37
   10.00  -76.17   41.67  -83.10   50.03
   11.00  -76.30   56.67  -79.20   56.79
   12.00  -76.66   71.67  -75.66   64.79
   13.00  -76.48   86.67  -72.16   70.74
   14.00  -76.30  101.67  -68.99   77.24
   15.00  -76.12  116.67  -66.24   84.06
   16.00  -75.93  131.67  -63.96   91.14
   17.00  -75.64  146.67  -62.08   98.38
   18.00  -76.89  161.67  -62.20  106.99
   19.00  -77.17  176.67  -61.81  114.54
   20.00  -76.14  191.67  -60.53  121.86
   21.00  -73.84  206.67  -58.46  130.04
   22.00  -70.23  221.67  -55.78  139.81
   23.00  -67.92  236.67  -55.06  150.36
</PRE>


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