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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 00:30:53 yearsecs  12961853
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.43   60.26  -64.16   14.42
    1.00  -62.05   75.26  -61.11   30.04
    2.00  -62.67   90.26  -58.33   44.51
    3.00  -63.28  105.26  -55.78   58.04
    4.00  -62.63  120.26  -52.30   69.31
    5.00  -63.77  135.26  -51.32   81.42
    6.00  -64.46  150.26  -50.49   92.47
    7.00  -64.63  165.26  -49.63  102.99
    8.00  -64.93  180.26  -49.35  113.41
    9.00  -65.10  195.26  -49.48  123.61
   10.00  -64.63  210.26  -49.62  133.78
   11.00  -64.38  225.26  -50.57  144.13
   12.00  -64.37  240.26  -52.22  154.62
   13.00  -64.59  255.26  -54.47  165.19
   14.00  -65.04  270.26  -57.27  175.73
   15.00  -65.71  285.26  -60.64  186.09
   16.00  -66.62  300.26  -64.65  196.21
   17.00  -67.75  315.26  -69.22  206.28
   18.00  -67.74  330.26  -73.01  220.18
   19.00  -67.07  345.26  -76.14  240.02
   20.00  -65.60    0.26  -77.75  269.56
   21.00  -64.48   15.26  -77.53  305.10
   22.00  -63.11   30.26  -74.04  336.32
   23.00  -61.95   45.26  -68.91  357.92
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.59   60.26  -75.23   37.49
    1.00  -72.48   75.26  -71.93   52.02
    2.00  -73.42   90.26  -69.05   64.24
    3.00  -74.29  105.26  -66.63   74.75
    4.00  -76.59  120.26  -66.11   86.61
    5.00  -77.67  135.26  -65.18   95.27
    6.00  -77.39  150.26  -63.49  101.90
    7.00  -76.76  165.26  -61.86  108.68
    8.00  -77.34  180.26  -61.89  116.36
    9.00  -77.30  195.26  -61.73  123.70
   10.00  -77.23  210.26  -61.98  131.07
   11.00  -76.98  225.26  -62.53  138.58
   12.00  -76.65  240.26  -63.45  146.30
   13.00  -76.53  255.26  -65.01  153.93
   14.00  -76.53  270.26  -67.04  161.34
   15.00  -76.08  285.26  -69.13  169.57
   16.00  -75.94  300.26  -71.84  177.23
   17.00  -74.61  315.26  -74.23  188.91
   18.00  -74.41  330.26  -77.66  198.50
   19.00  -75.00  345.26  -81.67  205.10
   20.00  -74.47    0.26  -85.35  224.38
   21.00  -72.77   15.26  -86.71  300.49
   22.00  -72.34   30.26  -84.10    0.89
   23.00  -71.40   45.26  -79.30   21.20
</PRE>


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