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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>
10 Apr 1997 00:43:36 yearsecs   8556216
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.63   60.15  -64.45   14.59
    1.00  -62.22   75.15  -61.35   30.20
    2.00  -62.82   90.15  -58.52   44.63
    3.00  -63.41  105.15  -55.95   58.11
    4.00  -62.86  120.15  -52.57   69.44
    5.00  -64.07  135.15  -51.64   81.56
    6.00  -64.70  150.15  -50.75   92.53
    7.00  -64.87  165.15  -49.88  103.01
    8.00  -65.50  180.15  -49.92  113.45
    9.00  -64.89  195.15  -49.27  123.53
   10.00  -64.45  210.15  -49.43  133.73
   11.00  -64.26  225.15  -50.44  144.09
   12.00  -64.29  240.15  -52.14  154.58
   13.00  -64.55  255.15  -54.42  165.13
   14.00  -65.03  270.15  -57.25  175.65
   15.00  -65.74  285.15  -60.64  185.98
   16.00  -66.67  300.15  -64.67  196.05
   17.00  -67.83  315.15  -69.26  206.04
   18.00  -67.84  330.15  -73.07  219.83
   19.00  -67.16  345.15  -76.20  239.62
   20.00  -65.74    0.15  -77.87  269.08
   21.00  -64.63   15.15  -77.71  304.79
   22.00  -63.31   30.15  -74.31  336.30
   23.00  -62.14   45.15  -69.17  358.02
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.06   60.15  -73.91   32.35
    1.00  -71.05   75.15  -70.74   47.93
    2.00  -72.02   90.15  -67.88   60.93
    3.00  -72.96  105.15  -65.47   72.16
    4.00  -75.54  120.15  -65.18   84.79
    5.00  -76.63  135.15  -64.21   93.78
    6.00  -76.14  150.15  -62.27  100.63
    7.00  -75.39  165.15  -60.49  107.80
    8.00  -76.10  180.15  -60.63  115.92
    9.00  -76.08  195.15  -60.48  123.65
   10.00  -76.12  210.15  -60.87  131.35
   11.00  -75.93  225.15  -61.51  139.16
   12.00  -75.62  240.15  -62.50  147.19
   13.00  -75.53  255.15  -64.13  155.14
   14.00  -75.63  270.15  -66.30  162.81
   15.00  -75.19  285.15  -68.45  171.37
   16.00  -75.08  300.15  -71.25  179.46
   17.00  -73.61  315.15  -73.58  191.97
   18.00  -73.43  330.15  -77.09  202.51
   19.00  -74.14  345.15  -81.27  210.65
   20.00  -73.58    0.15  -84.84  233.79
   21.00  -71.64   15.15  -85.47  301.30
   22.00  -71.02   30.15  -82.90  352.98
   23.00  -70.00   45.15  -78.07   15.38
</PRE>


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