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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>
22 Jan 1997 16:41:20 yearsecs   1874480
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.30  183.15  -50.67  115.60
    1.00  -66.33  198.15  -50.76  125.54
    2.00  -67.09  213.15  -52.17  135.28
    3.00  -67.84  228.15  -54.09  144.82
    4.00  -67.39  243.15  -55.35  154.95
    5.00  -67.99  258.15  -57.94  164.61
    6.00  -67.85  273.15  -60.25  174.99
    7.00  -68.15  288.15  -63.34  185.10
    8.00  -69.19  303.15  -67.49  194.15
    9.00  -69.63  318.15  -71.46  204.67
   10.00  -69.52  333.15  -75.17  218.51
   11.00  -69.22  348.15  -78.67  237.91
   12.00  -69.17    3.15  -81.75  267.44
   13.00  -69.37   18.15  -82.89  312.74
   14.00  -69.81   33.15  -81.00  354.64
   15.00  -70.48   48.15  -77.67   20.97
   16.00  -71.12   63.15  -74.03   38.44
   17.00  -71.24   78.15  -70.13   50.69
   18.00  -71.38   93.15  -66.61   61.54
   19.00  -70.73  108.15  -62.79   70.27
   20.00  -69.90  123.15  -59.31   78.79
   21.00  -69.10  138.15  -56.44   87.54
   22.00  -68.44  153.15  -54.31   96.67
   23.00  -67.52  168.15  -52.40  106.00
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.84  183.15  -56.24  116.57
    1.00  -72.94  198.15  -57.34  125.35
    2.00  -73.69  213.15  -58.59  133.67
    3.00  -78.90  228.15  -64.58  138.58
    4.00  -80.70  243.15  -67.39  142.97
    5.00  -81.09  258.15  -69.12  147.93
    6.00  -80.45  273.15  -70.37  154.58
    7.00  -79.50  288.15  -71.88  162.28
    8.00  -79.57  303.15  -74.35  166.86
    9.00  -79.57  318.15  -77.01  170.51
   10.00  -79.39  333.15  -79.79  173.11
   11.00  -79.39  348.15  -82.64  170.52
   12.00  -79.63    3.15  -84.96  154.12
   13.00  -79.45   18.15  -86.03  118.48
   14.00  -79.26   33.15  -84.50   85.55
   15.00  -79.08   48.15  -81.62   74.52
   16.00  -78.90   63.15  -78.41   73.12
   17.00  -78.71   78.15  -75.20   75.49
   18.00  -79.73   93.15  -72.88   83.58
   19.00  -79.99  108.15  -70.65   89.04
   20.00  -79.23  123.15  -68.01   92.75
   21.00  -77.50  138.15  -64.71   96.35
   22.00  -74.78  153.15  -60.68  101.01
   23.00  -73.10  168.15  -58.02  108.26
</PRE>


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