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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>
18 Aug 1997 11:42:00 yearsecs  19827720
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.78  258.15  -52.36  169.19
    1.00  -62.37  273.15  -55.38  180.23
    2.00  -62.96  288.15  -58.77  191.38
    3.00  -63.54  303.15  -62.60  202.82
    4.00  -63.03  318.15  -65.81  216.81
    5.00  -64.25  333.15  -70.70  230.49
    6.00  -64.85  348.15  -74.76  249.32
    7.00  -65.11    3.15  -77.64  276.54
    8.00  -65.61   18.15  -78.67  311.91
    9.00  -64.97   33.15  -75.65  343.63
   10.00  -64.56   48.15  -71.34    5.56
   11.00  -64.37   63.15  -67.02   22.08
   12.00  -64.40   78.15  -63.18   36.42
   13.00  -64.66   93.15  -59.89   49.86
   14.00  -65.14  108.15  -57.18   62.60
   15.00  -65.85  123.15  -55.19   74.51
   16.00  -66.78  138.15  -54.08   85.68
   17.00  -67.94  153.15  -53.80   96.38
   18.00  -67.95  168.15  -52.83  106.16
   19.00  -67.27  183.15  -51.64  115.77
   20.00  -65.86  198.15  -50.30  125.55
   21.00  -64.76  213.15  -49.93  135.73
   22.00  -63.46  228.15  -49.99  146.46
   23.00  -62.28  243.15  -50.66  157.74
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.07  258.15  -58.89  163.68
    1.00  -70.11  273.15  -62.19  172.38
    2.00  -71.11  288.15  -65.83  180.62
    3.00  -72.09  303.15  -69.77  188.34
    4.00  -74.83  318.15  -75.01  189.81
    5.00  -75.88  333.15  -79.03  193.16
    6.00  -75.55  348.15  -82.60  202.83
    7.00  -74.92    3.15  -86.31  222.72
    8.00  -75.97   18.15  -89.41   54.78
    9.00  -75.83   33.15  -85.34   43.02
   10.00  -75.87   48.15  -81.27   50.35
   11.00  -75.69   63.15  -77.26   56.59
   12.00  -75.36   78.15  -73.34   62.95
   13.00  -75.26   93.15  -69.88   70.46
   14.00  -75.38  108.15  -67.03   78.43
   15.00  -74.94  123.15  -64.18   85.39
   16.00  -74.81  138.15  -62.13   93.08
   17.00  -73.29  153.15  -59.19   99.86
   18.00  -73.00  168.15  -57.92  108.22
   19.00  -73.64  183.15  -58.07  116.93
   20.00  -72.96  198.15  -57.35  125.35
   21.00  -70.86  213.15  -55.82  134.44
   22.00  -70.15  228.15  -56.26  143.83
   23.00  -69.08  243.15  -56.88  153.90
</PRE>


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