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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>
21 Aug 1997 12:46:56 yearsecs  20090816
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.43  243.33  -48.95  158.76
    1.00  -61.09  258.33  -51.74  169.77
    2.00  -61.74  273.33  -54.84  180.89
    3.00  -62.39  288.33  -58.29  192.12
    4.00  -61.54  303.33  -60.80  205.44
    5.00  -62.60  318.33  -65.47  217.59
    6.00  -63.53  333.33  -70.09  231.93
    7.00  -64.07  348.33  -74.05  251.06
    8.00  -64.64    3.33  -77.17  277.62
    9.00  -64.00   18.33  -76.82  312.28
   10.00  -63.58   33.33  -73.95  342.21
   11.00  -63.39   48.33  -69.88    3.85
   12.00  -63.43   63.33  -65.85   20.64
   13.00  -63.69   78.33  -62.31   35.42
   14.00  -64.18   93.33  -59.32   49.31
   15.00  -64.89  108.33  -56.88   62.43
   16.00  -65.83  123.33  -55.14   74.62
   17.00  -66.99  138.33  -54.28   85.96
   18.00  -66.98  153.33  -52.81   95.96
   19.00  -66.26  168.33  -51.12  105.67
   20.00  -64.81  183.33  -49.17  115.49
   21.00  -63.69  198.33  -48.16  125.70
   22.00  -62.19  213.33  -47.47  136.31
   23.00  -61.02  228.33  -47.70  147.40
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.33  243.33  -57.13  153.85
    1.00  -70.17  258.33  -59.89  162.78
    2.00  -71.19  273.33  -63.14  171.13
    3.00  -72.04  288.33  -66.61  179.14
    4.00  -74.34  303.33  -71.42  183.07
    5.00  -75.55  318.33  -75.45  187.31
    6.00  -75.32  333.33  -78.85  196.08
    7.00  -74.79  348.33  -82.38  208.77
    8.00  -75.51    3.33  -86.53  213.14
    9.00  -75.50   18.33  -89.30    7.86
   10.00  -75.33   33.33  -85.16   36.62
   11.00  -75.00   48.33  -80.86   44.43
   12.00  -74.65   63.33  -76.62   51.95
   13.00  -74.54   78.33  -72.73   60.33
   14.00  -74.41   93.33  -69.18   68.44
   15.00  -73.85  108.33  -65.66   75.62
   16.00  -73.67  123.33  -62.95   83.65
   17.00  -72.28  138.33  -59.62   90.53
   18.00  -72.00  153.33  -57.88   99.04
   19.00  -72.25  168.33  -57.16  107.99
   20.00  -71.90  183.33  -56.30  116.69
   21.00  -70.24  198.33  -54.64  125.56
   22.00  -70.02  213.33  -55.01  134.75
   23.00  -68.92  228.33  -55.12  144.49
</PRE>


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