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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>
24 Oct 1997 14:59:04 yearsecs  25628344
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.50  201.90  -42.21  128.45
    1.00  -57.67  216.90  -43.37  139.75
    2.00  -57.80  231.90  -44.98  151.14
    3.00  -57.89  246.90  -47.00  162.68
    4.00  -57.92  261.90  -49.34  174.50
    5.00  -58.29  276.90  -52.31  186.44
    6.00  -59.79  291.90  -56.64  197.62
    7.00  -60.83  306.90  -60.99  209.38
    8.00  -59.65  321.90  -63.57  225.00
    9.00  -59.94  336.90  -67.49  241.50
   10.00  -60.16  351.90  -70.85  262.39
   11.00  -60.45    6.90  -72.98  289.29
   12.00  -60.86   21.90  -72.78  319.47
   13.00  -61.41   36.90  -70.42  345.70
   14.00  -62.12   51.90  -67.31    6.25
   15.00  -63.00   66.90  -64.39   23.52
   16.00  -64.07   81.90  -61.87   39.23
   17.00  -65.32   96.90  -59.75   53.92
   18.00  -65.65  111.90  -56.97   66.07
   19.00  -64.40  126.90  -53.11   75.88
   20.00  -62.87  141.90  -49.63   85.61
   21.00  -61.62  156.90  -47.07   95.85
   22.00  -59.73  171.90  -44.35  106.28
   23.00  -58.54  186.90  -42.87  117.24
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.25  201.90  -58.73  127.35
    1.00  -75.07  216.90  -60.14  135.25
    2.00  -75.84  231.90  -61.94  142.72
    3.00  -76.27  246.90  -63.80  150.04
    4.00  -76.93  261.90  -66.19  156.63
    5.00  -78.02  276.90  -69.18  161.52
    6.00  -78.34  291.90  -71.79  166.94
    7.00  -77.64  306.90  -74.13  174.91
    8.00  -77.75  321.90  -77.20  179.78
    9.00  -78.02  336.90  -80.45  181.86
   10.00  -77.58  351.90  -83.76  185.28
   11.00  -77.22    6.90  -87.20  176.79
   12.00  -76.99   21.90  -88.02   77.99
   13.00  -76.78   36.90  -84.43   55.52
   14.00  -76.74   51.90  -80.56   57.80
   15.00  -76.55   66.90  -76.75   62.31
   16.00  -76.80   81.90  -73.40   69.66
   17.00  -76.94   96.90  -70.39   76.65
   18.00  -76.57  111.90  -67.40   82.65
   19.00  -75.73  126.90  -64.39   88.48
   20.00  -75.40  141.90  -62.30   95.68
   21.00  -74.71  156.90  -60.32  102.97
   22.00  -74.83  171.90  -59.60  111.11
   23.00  -74.11  186.90  -58.48  119.10
</PRE>


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