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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>
23 Apr 1997 01:27:25 yearsecs   9682045
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.63   48.16  -70.22    4.00
    1.00  -63.66   63.16  -66.17   20.85
    2.00  -64.42   78.16  -63.20   36.45
    3.00  -65.18   93.16  -60.44   50.63
    4.00  -64.93  108.16  -56.96   62.35
    5.00  -66.10  123.16  -55.45   74.76
    6.00  -66.36  138.16  -53.65   85.36
    7.00  -66.23  153.16  -52.06   95.42
    8.00  -66.59  168.16  -51.46  105.67
    9.00  -66.40  183.16  -50.77  115.62
   10.00  -65.99  198.16  -50.42  125.54
   11.00  -65.79  213.16  -50.92  135.54
   12.00  -65.83  228.16  -52.21  145.61
   13.00  -66.08  243.16  -54.16  155.72
   14.00  -66.57  258.16  -56.68  165.78
   15.00  -67.27  273.16  -59.74  175.62
   16.00  -68.20  288.16  -63.39  185.02
   17.00  -69.28  303.16  -67.56  193.99
   18.00  -69.20  318.16  -71.12  205.66
   19.00  -68.57  333.16  -74.43  221.13
   20.00  -67.36  348.16  -77.07  243.56
   21.00  -66.30    3.16  -78.86  274.52
   22.00  -65.21   18.16  -78.22  311.89
   23.00  -64.17   33.16  -74.70  342.59
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.11   48.16  -79.07   27.92
    1.00  -73.21   63.16  -75.70   45.90
    2.00  -74.19   78.16  -72.53   59.13
    3.00  -76.34   93.16  -70.70   73.33
    4.00  -78.77  108.16  -69.77   85.94
    5.00  -79.50  123.16  -68.24   93.29
    6.00  -78.92  138.16  -66.04   98.33
    7.00  -78.58  153.16  -64.43  104.43
    8.00  -79.08  168.16  -64.07  111.54
    9.00  -78.80  183.16  -63.32  118.16
   10.00  -78.92  198.16  -63.41  125.01
   11.00  -78.70  213.16  -63.57  131.90
   12.00  -78.49  228.16  -64.19  138.91
   13.00  -78.28  243.16  -65.22  146.00
   14.00  -78.35  258.16  -66.89  152.69
   15.00  -77.97  273.16  -68.58  160.00
   16.00  -77.94  288.16  -70.91  166.50
   17.00  -76.86  303.16  -72.98  175.88
   18.00  -76.82  318.16  -76.04  182.38
   19.00  -77.09  333.16  -79.44  186.59
   20.00  -76.36  348.16  -82.80  196.18
   21.00  -74.47    3.16  -86.10  229.43
   22.00  -73.34   18.16  -87.25  319.15
   23.00  -72.36   33.16  -83.39    7.51
</PRE>


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