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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 May 1997 00:29:43 yearsecs  12961783
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.41   60.53  -64.06   14.67
    1.00  -62.03   75.53  -61.02   30.26
    2.00  -62.65   90.53  -58.24   44.73
    3.00  -63.26  105.53  -55.71   58.24
    4.00  -62.61  120.53  -52.23   69.50
    5.00  -63.74  135.53  -51.26   81.60
    6.00  -64.45  150.53  -50.45   92.66
    7.00  -64.62  165.53  -49.60  103.18
    8.00  -64.91  180.53  -49.32  113.59
    9.00  -65.13  195.53  -49.51  123.79
   10.00  -64.64  210.53  -49.65  133.96
   11.00  -64.38  225.53  -50.60  144.32
   12.00  -64.36  240.53  -52.25  154.81
   13.00  -64.58  255.53  -54.50  165.39
   14.00  -65.03  270.53  -57.31  175.93
   15.00  -65.70  285.53  -60.69  186.31
   16.00  -66.60  300.53  -64.70  196.44
   17.00  -67.73  315.53  -69.28  206.54
   18.00  -67.72  330.53  -73.06  220.50
   19.00  -67.05  345.53  -76.19  240.45
   20.00  -65.58    0.53  -77.77  270.17
   21.00  -64.45   15.53  -77.49  305.75
   22.00  -63.08   30.53  -73.96  336.79
   23.00  -61.93   45.53  -68.81  358.24
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.60   60.53  -75.17   37.79
    1.00  -72.48   75.53  -71.87   52.24
    2.00  -73.42   90.53  -68.99   64.42
    3.00  -74.29  105.53  -66.58   74.90
    4.00  -76.58  120.53  -66.06   86.72
    5.00  -77.66  135.53  -65.14   95.38
    6.00  -77.40  150.53  -63.48  102.03
    7.00  -76.76  165.53  -61.85  108.81
    8.00  -77.32  180.53  -61.86  116.48
    9.00  -77.29  195.53  -61.72  123.83
   10.00  -77.21  210.53  -61.98  131.21
   11.00  -76.96  225.53  -62.53  138.73
   12.00  -76.64  240.53  -63.47  146.45
   13.00  -76.52  255.53  -65.03  154.08
   14.00  -76.51  270.53  -67.07  161.50
   15.00  -76.06  285.53  -69.16  169.74
   16.00  -75.92  300.53  -71.88  177.40
   17.00  -74.61  315.53  -74.29  189.09
   18.00  -74.41  330.53  -77.73  198.70
   19.00  -74.99  345.53  -81.74  205.36
   20.00  -74.46    0.53  -85.42  224.90
   21.00  -72.77   15.53  -86.71  302.06
   22.00  -72.35   30.53  -84.04    1.64
   23.00  -71.41   45.53  -79.23   21.58
</PRE>


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