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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>
07 Apr 1997 16:42:05 yearsecs   8354525
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.09  183.06  -48.45  115.19
    1.00  -65.08  198.06  -49.53  125.49
    2.00  -66.07  213.06  -51.18  135.42
    3.00  -67.05  228.06  -53.35  145.07
    4.00  -66.78  243.06  -54.78  155.26
    5.00  -67.57  258.06  -57.56  164.90
    6.00  -67.58  273.06  -59.99  175.23
    7.00  -67.56  288.06  -62.81  185.84
    8.00  -68.33  303.06  -66.75  195.60
    9.00  -68.24  318.06  -70.33  207.65
   10.00  -67.93  333.06  -73.88  222.65
   11.00  -67.71  348.06  -77.36  242.44
   12.00  -67.75    3.06  -80.32  271.21
   13.00  -68.00   18.06  -81.37  311.97
   14.00  -68.49   33.06  -79.63  350.29
   15.00  -69.19   48.06  -76.47   16.41
   16.00  -70.03   63.06  -73.08   35.00
   17.00  -70.70   78.06  -69.67   49.24
   18.00  -70.59   93.06  -65.90   59.89
   19.00  -70.03  108.06  -62.14   69.14
   20.00  -69.08  123.06  -58.51   77.81
   21.00  -68.16  138.06  -55.50   86.70
   22.00  -66.84  153.06  -52.69   95.69
   23.00  -65.07  168.06  -49.93  105.08
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.09  183.06  -53.47  116.01
    1.00  -70.18  198.06  -54.57  125.39
    2.00  -71.11  213.06  -56.05  134.32
    3.00  -76.15  228.06  -61.93  140.52
    4.00  -78.42  243.06  -65.33  145.79
    5.00  -78.74  258.06  -67.21  152.01
    6.00  -77.94  273.06  -68.54  160.03
    7.00  -77.06  288.06  -70.31  168.63
    8.00  -77.32  303.06  -73.21  174.43
    9.00  -76.99  318.06  -76.09  181.66
   10.00  -76.95  333.06  -79.38  187.35
   11.00  -76.86  348.06  -82.85  191.96
   12.00  -77.13    3.06  -86.39  184.79
   13.00  -76.95   18.06  -88.65  103.58
   14.00  -76.95   33.06  -85.41   58.37
   15.00  -76.72   48.06  -81.54   56.51
   16.00  -76.89   63.06  -77.83   62.42
   17.00  -76.65   78.06  -74.17   67.47
   18.00  -77.35   93.06  -71.42   76.12
   19.00  -77.18  108.06  -68.55   82.18
   20.00  -76.19  123.06  -65.34   87.28
   21.00  -74.17  138.06  -61.51   92.31
   22.00  -71.84  153.06  -57.74   98.77
   23.00  -70.07  168.06  -54.97  106.91
</PRE>


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