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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>
24 May 1997 00:13:21 yearsecs  12356001
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.57   64.35  -64.52   20.29
    1.00  -63.72   79.35  -62.10   36.40
    2.00  -65.03   94.35  -60.01   51.40
    3.00  -66.62  109.35  -58.47   65.35
    4.00  -67.05  124.35  -56.24   76.54
    5.00  -68.82  139.35  -56.02   88.07
    6.00  -70.31  154.35  -56.10   98.56
    7.00  -72.35  169.35  -57.21  108.62
    8.00  -71.51  184.35  -55.89  117.23
    9.00  -70.24  199.35  -54.66  126.18
   10.00  -68.91  214.35  -54.00  135.65
   11.00  -67.84  229.35  -54.21  145.61
   12.00  -67.19  244.35  -55.32  155.89
   13.00  -66.93  259.35  -57.18  166.32
   14.00  -67.04  274.35  -59.75  176.71
   15.00  -67.49  289.35  -63.03  186.86
   16.00  -67.98  304.35  -66.77  197.17
   17.00  -67.90  319.35  -70.38  209.48
   18.00  -67.88  334.35  -74.17  224.20
   19.00  -66.94  349.35  -76.96  246.54
   20.00  -66.15    4.35  -78.86  277.51
   21.00  -65.45   19.35  -78.40  314.80
   22.00  -64.97   34.35  -75.37  345.75
   23.00  -64.05   49.35  -70.40    6.17
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.57   64.35  -70.27   29.79
    1.00  -69.01   79.35  -67.75   46.31
    2.00  -70.03   94.35  -65.07   59.72
    3.00  -76.48  109.35  -67.75   81.25
    4.00  -78.73  124.35  -67.43   92.27
    5.00  -79.27  139.35  -66.25   99.34
    6.00  -78.55  154.35  -64.31  104.93
    7.00  -77.35  169.35  -62.26  111.04
    8.00  -77.36  184.35  -61.83  118.36
    9.00  -77.29  199.35  -61.76  125.71
   10.00  -76.95  214.35  -61.88  133.19
   11.00  -76.96  229.35  -62.80  140.62
   12.00  -77.20  244.35  -64.36  147.76
   13.00  -76.93  259.35  -65.86  155.39
   14.00  -76.66  274.35  -67.76  163.10
   15.00  -76.39  289.35  -70.08  170.84
   16.00  -76.13  304.35  -72.78  178.64
   17.00  -75.85  319.35  -75.84  186.69
   18.00  -77.11  334.35  -79.71  186.87
   19.00  -77.46  349.35  -83.18  186.80
   20.00  -76.54    4.35  -86.83  194.11
   21.00  -74.41   19.35  -88.22  338.28
   22.00  -71.08   34.35  -81.95    2.49
   23.00  -69.05   49.35  -75.96   17.57
</PRE>


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