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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>
13 May 1997 17:50:28 yearsecs  11469028
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.17  161.50  -48.36   99.80
    1.00  -64.49  176.50  -49.01  110.74
    2.00  -65.39  191.50  -49.72  121.09
    3.00  -66.87  206.50  -51.59  130.98
    4.00  -66.75  221.50  -52.47  140.85
    5.00  -67.77  236.50  -54.91  150.32
    6.00  -68.15  251.50  -57.13  160.03
    7.00  -69.10  266.50  -60.21  169.17
    8.00  -70.93  281.50  -64.39  176.65
    9.00  -72.39  296.50  -68.55  183.52
   10.00  -72.18  311.50  -71.75  193.58
   11.00  -72.07  326.50  -75.32  204.66
   12.00  -70.87  341.50  -78.31  223.04
   13.00  -70.23  356.50  -81.45  248.30
   14.00  -70.05   11.50  -83.61  289.71
   15.00  -70.26   26.50  -82.86  340.29
   16.00  -70.57   41.50  -79.60   12.44
   17.00  -70.41   56.50  -75.26   29.91
   18.00  -70.33   71.50  -71.05   43.12
   19.00  -69.44   86.50  -66.37   52.80
   20.00  -68.37  101.50  -61.87   62.04
   21.00  -67.35  116.50  -57.86   71.39
   22.00  -66.50  131.50  -54.63   80.94
   23.00  -64.69  146.50  -51.06   89.99
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.17  161.50  -53.44  101.93
    1.00  -69.49  176.50  -54.04  111.98
    2.00  -70.39  191.50  -54.71  121.40
    3.00  -76.65  206.50  -61.27  129.36
    4.00  -78.80  221.50  -64.08  135.65
    5.00  -79.26  236.50  -65.53  141.95
    6.00  -78.49  251.50  -66.26  149.51
    7.00  -77.33  266.50  -67.14  158.16
    8.00  -77.41  281.50  -69.45  164.89
    9.00  -77.39  296.50  -72.03  171.47
   10.00  -77.18  311.50  -74.82  178.32
   11.00  -77.17  326.50  -77.99  183.99
   12.00  -77.47  341.50  -81.40  186.20
   13.00  -77.26  356.50  -84.85  187.45
   14.00  -77.05   11.50  -88.20  163.38
   15.00  -76.84   26.50  -87.05   62.20
   16.00  -76.63   41.50  -83.22   54.31
   17.00  -76.41   56.50  -79.28   57.34
   18.00  -77.65   71.50  -76.17   68.95
   19.00  -77.96   86.50  -73.12   75.46
   20.00  -77.06  101.50  -69.61   78.99
   21.00  -74.98  116.50  -65.24   81.99
   22.00  -71.72  131.50  -59.90   85.95
   23.00  -69.69  146.50  -56.16   93.27
</PRE>


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