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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>
31 Jul 1997 20:21:54 yearsecs  18303714
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.71  123.52  -52.91   72.78
    1.00  -63.69  138.52  -50.85   83.71
    2.00  -64.47  153.52  -50.24   94.76
    3.00  -65.25  168.52  -50.09  105.46
    4.00  -65.01  183.52  -49.37  115.65
    5.00  -66.16  198.52  -50.60  125.78
    6.00  -66.41  213.52  -51.54  135.66
    7.00  -66.28  228.52  -52.67  145.68
    8.00  -66.96  243.52  -55.01  155.46
    9.00  -66.47  258.52  -56.65  166.11
   10.00  -66.04  273.52  -58.73  177.14
   11.00  -65.85  288.52  -61.43  188.36
   12.00  -65.89  303.52  -64.78  199.86
   13.00  -66.15  318.52  -68.69  212.12
   14.00  -66.63  333.52  -72.90  226.21
   15.00  -67.34  348.52  -77.13  244.19
   16.00  -68.27    3.52  -80.91  271.02
   17.00  -69.33   18.52  -82.83  313.92
   18.00  -69.25   33.52  -80.34  353.49
   19.00  -68.63   48.52  -75.77   15.27
   20.00  -67.43   63.52  -70.35   28.65
   21.00  -66.37   78.52  -65.26   40.24
   22.00  -65.29   93.52  -60.48   51.11
   23.00  -64.26  108.52  -56.18   61.83
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.85  123.52  -61.18   81.37
    1.00  -72.95  138.52  -60.26   91.30
    2.00  -73.93  153.52  -59.80  100.55
    3.00  -76.22  168.52  -61.16  110.01
    4.00  -78.66  183.52  -63.17  118.29
    5.00  -79.37  198.52  -63.87  125.14
    6.00  -78.76  213.52  -63.65  132.04
    7.00  -78.18  228.52  -63.91  139.31
    8.00  -78.92  243.52  -65.83  145.40
    9.00  -78.64  258.52  -67.18  152.38
   10.00  -78.76  273.52  -69.22  158.52
   11.00  -78.56  288.52  -71.36  165.02
   12.00  -78.37  303.52  -73.86  171.17
   13.00  -78.15  318.52  -76.65  176.93
   14.00  -78.23  333.52  -79.76  180.13
   15.00  -77.85  348.52  -82.98  183.36
   16.00  -77.84    3.52  -86.20  173.32
   17.00  -76.80   18.52  -88.74   95.85
   18.00  -76.78   33.52  -85.30   56.00
   19.00  -77.02   48.52  -81.49   58.90
   20.00  -76.26   63.52  -77.44   59.50
   21.00  -74.34   78.52  -72.54   59.81
   22.00  -73.15   93.52  -68.09   65.59
   23.00  -72.13  108.52  -64.04   72.74
</PRE>


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