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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
08 Apr 1997 23:15:25 yearsecs   8464525
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.84   81.90  -61.62   38.87
    1.00  -63.84   96.90  -58.16   51.84
    2.00  -64.71  111.90  -55.99   64.98
    3.00  -65.56  126.90  -54.32   76.91
    4.00  -65.34  141.90  -52.19   87.20
    5.00  -66.44  156.90  -51.99   98.05
    6.00  -66.65  171.90  -51.36  108.19
    7.00  -66.51  186.90  -50.84  118.12
    8.00  -67.19  201.90  -51.72  127.95
    9.00  -66.74  216.90  -52.10  137.81
   10.00  -66.32  231.90  -53.06  147.94
   11.00  -66.13  246.90  -54.69  158.28
   12.00  -66.16  261.90  -56.89  168.74
   13.00  -66.42  276.90  -59.66  179.19
   14.00  -66.90  291.90  -63.05  189.51
   15.00  -67.61  306.90  -67.06  199.77
   16.00  -68.54  321.90  -71.54  210.34
   17.00  -69.58  336.90  -76.17  222.31
   18.00  -69.45  351.90  -79.75  243.02
   19.00  -68.85    6.90  -81.95  278.33
   20.00  -67.70   21.90  -80.70  322.43
   21.00  -66.65   36.90  -76.71  353.08
   22.00  -65.61   51.90  -71.54   12.13
   23.00  -64.32   66.90  -65.97   25.73
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.84   81.90  -66.94   47.98
    1.00  -69.99   96.90  -64.46   61.45
    2.00  -71.04  111.90  -62.37   73.14
    3.00  -74.11  126.90  -62.87   86.22
    4.00  -76.83  141.90  -63.69   97.29
    5.00  -77.49  156.90  -63.10  105.14
    6.00  -76.68  171.90  -61.47  111.95
    7.00  -75.90  186.90  -60.31  119.37
    8.00  -76.60  201.90  -61.11  127.05
    9.00  -76.27  216.90  -61.33  134.75
   10.00  -76.37  231.90  -62.44  142.33
   11.00  -76.19  246.90  -63.72  150.13
   12.00  -76.14  261.90  -65.53  157.80
   13.00  -75.96  276.90  -67.63  165.65
   14.00  -76.11  291.90  -70.35  172.73
   15.00  -75.77  306.90  -73.09  180.94
   16.00  -75.89  321.90  -76.43  187.74
   17.00  -74.95  336.90  -79.56  200.03
   18.00  -75.09  351.90  -83.41  209.09
   19.00  -75.25    6.90  -87.41  222.90
   20.00  -74.37   21.90  -87.70  354.58
   21.00  -72.23   36.90  -82.30   13.54
   22.00  -70.69   51.90  -76.80   26.06
   23.00  -69.32   66.90  -71.35   36.50
</PRE>


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