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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 Apr 1997 14:51:16 yearsecs   8434276
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.22  213.53  -49.44  136.09
    1.00  -63.93  228.53  -50.48  146.56
    2.00  -64.83  243.53  -53.07  156.68
    3.00  -65.73  258.53  -55.99  166.69
    4.00  -65.52  273.53  -58.27  177.67
    5.00  -66.59  288.53  -62.07  187.45
    6.00  -66.79  303.53  -65.56  198.49
    7.00  -66.64  318.53  -69.12  211.22
    8.00  -67.32  333.53  -73.50  224.64
    9.00  -66.89  348.53  -76.74  245.37
   10.00  -66.47    3.53  -79.09  275.06
   11.00  -66.28   18.53  -79.40  312.92
   12.00  -66.31   33.53  -77.11  346.42
   13.00  -66.57   48.53  -73.56   10.02
   14.00  -67.05   63.53  -69.94   27.81
   15.00  -67.75   78.53  -66.71   42.96
   16.00  -68.68   93.53  -63.96   56.67
   17.00  -69.71  108.53  -61.72   68.98
   18.00  -69.56  123.53  -58.91   78.65
   19.00  -68.98  138.53  -56.27   87.68
   20.00  -67.84  153.53  -53.67   96.57
   21.00  -66.80  168.53  -51.66  105.99
   22.00  -65.77  183.53  -50.13  115.78
   23.00  -64.83  198.53  -49.29  125.82
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.71  213.53  -55.70  134.71
    1.00  -71.80  228.53  -57.84  143.27
    2.00  -72.80  243.53  -60.29  151.44
    3.00  -75.84  258.53  -64.83  156.50
    4.00  -78.30  273.53  -68.88  159.50
    5.00  -78.88  288.53  -71.56  164.16
    6.00  -78.19  303.53  -73.77  171.79
    7.00  -77.56  318.53  -76.43  179.50
    8.00  -78.06  333.53  -79.74  181.09
    9.00  -77.92  348.53  -82.98  182.78
   10.00  -78.15    3.53  -86.03  168.99
   11.00  -77.92   18.53  -87.62  111.00
   12.00  -77.86   33.53  -85.09   69.87
   13.00  -77.63   48.53  -81.57   63.53
   14.00  -77.70   63.53  -78.01   66.77
   15.00  -77.35   78.53  -74.46   70.28
   16.00  -77.45   93.53  -71.40   76.61
   17.00  -76.65  108.53  -68.03   81.23
   18.00  -76.76  123.53  -65.80   88.46
   19.00  -76.79  138.53  -63.99   95.61
   20.00  -75.91  153.53  -61.77  102.14
   21.00  -73.89  168.53  -58.81  108.84
   22.00  -72.38  183.53  -56.78  116.90
   23.00  -71.13  198.53  -55.53  125.65
</PRE>


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