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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
31 Dec 1997 12:59:34 yearsecs  31496374
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.17  231.37  -50.07  148.84
    1.00  -63.44  246.37  -52.16  159.47
    2.00  -64.10  261.37  -54.97  169.98
    3.00  -64.75  276.37  -58.09  180.51
    4.00  -64.48  291.37  -60.81  192.19
    5.00  -65.72  306.37  -65.31  202.41
    6.00  -66.03  321.37  -69.31  214.97
    7.00  -65.90  336.37  -72.98  231.09
    8.00  -66.54  351.37  -77.03  250.84
    9.00  -66.02    6.37  -78.94  282.44
   10.00  -65.61   21.37  -78.39  319.67
   11.00  -65.42   36.37  -75.42  349.91
   12.00  -65.45   51.37  -71.51   11.19
   13.00  -65.71   66.37  -67.70   27.80
   14.00  -66.19   81.37  -64.35   42.38
   15.00  -66.90   96.37  -61.52   55.87
   16.00  -67.83  111.37  -59.30   68.36
   17.00  -68.94  126.37  -57.85   79.82
   18.00  -68.92  141.37  -55.90   89.45
   19.00  -68.26  156.37  -53.87   98.65
   20.00  -66.99  171.37  -51.72  107.94
   21.00  -65.91  186.37  -50.24  117.70
   22.00  -64.78  201.37  -49.33  127.74
   23.00  -63.67  216.37  -49.12  138.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.38  231.37  -60.52  143.42
    1.00  -75.46  246.37  -63.01  150.61
    2.00  -76.40  261.37  -65.68  157.16
    3.00  -77.89  276.37  -69.00  161.58
    4.00  -80.03  291.37  -72.67  161.78
    5.00  -80.79  306.37  -75.34  162.99
    6.00  -80.20  321.37  -77.70  167.98
    7.00  -79.60  336.37  -80.40  171.73
    8.00  -80.27  351.37  -82.84  161.74
    9.00  -79.96    6.37  -85.04  145.97
   10.00  -79.99   21.37  -85.31  112.05
   11.00  -79.77   36.37  -83.66   86.60
   12.00  -79.48   51.37  -80.91   76.72
   13.00  -79.26   66.37  -77.80   75.47
   14.00  -79.31   81.37  -74.82   78.80
   15.00  -78.92   96.37  -71.84   82.05
   16.00  -78.80  111.37  -69.29   87.23
   17.00  -77.66  126.37  -66.23   91.25
   18.00  -77.59  141.37  -64.47   97.96
   19.00  -78.08  156.37  -63.71  105.41
   20.00  -77.54  171.37  -62.37  112.12
   21.00  -75.90  186.37  -60.31  119.09
   22.00  -75.13  201.37  -59.61  126.96
   23.00  -74.45  216.37  -59.51  135.20
</PRE>


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