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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>
26 May 1997 20:18:31 yearsecs  12601111
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.66  121.45  -51.07   69.37
    1.00  -62.24  136.45  -49.58   81.23
    2.00  -62.84  151.45  -48.73   92.47
    3.00  -63.43  166.45  -48.35  103.41
    4.00  -62.89  181.45  -47.27  113.87
    5.00  -64.10  196.45  -48.51  124.40
    6.00  -64.73  211.45  -49.79  134.58
    7.00  -64.89  226.45  -51.16  144.78
    8.00  -65.52  241.45  -53.43  154.86
    9.00  -64.93  256.45  -54.96  165.80
   10.00  -64.46  271.45  -56.96  177.12
   11.00  -64.27  286.45  -59.60  188.63
   12.00  -64.31  301.45  -62.89  200.41
   13.00  -64.57  316.45  -66.78  212.89
   14.00  -65.05  331.45  -71.00  227.10
   15.00  -65.76  346.45  -75.23  244.85
   16.00  -66.69    1.45  -79.02  269.95
   17.00  -67.84   16.45  -81.26  307.35
   18.00  -67.85   31.45  -79.30  345.43
   19.00  -67.18   46.45  -74.81    8.73
   20.00  -65.76   61.45  -69.09   22.97
   21.00  -64.65   76.45  -63.89   35.31
   22.00  -63.33   91.45  -58.81   46.49
   23.00  -62.16  106.45  -54.33   57.72
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.06  121.45  -62.66   81.76
    1.00  -73.98  136.45  -61.51   91.24
    2.00  -74.88  151.45  -60.92  100.19
    3.00  -75.75  166.45  -60.79  108.68
    4.00  -77.98  181.45  -62.52  117.13
    5.00  -78.96  196.45  -63.43  124.23
    6.00  -78.62  211.45  -63.43  131.15
    7.00  -78.08  226.45  -63.67  138.42
    8.00  -78.83  241.45  -65.56  144.59
    9.00  -78.68  256.45  -66.97  151.42
   10.00  -78.62  271.45  -68.83  157.96
   11.00  -78.49  286.45  -70.98  164.40
   12.00  -78.26  301.45  -73.42  170.80
   13.00  -78.09  316.45  -76.21  176.56
   14.00  -78.10  331.45  -79.30  180.47
   15.00  -77.68  346.45  -82.53  185.00
   16.00  -77.51    1.45  -85.91  180.83
   17.00  -76.21   16.45  -89.54  113.42
   18.00  -75.99   31.45  -85.83   44.67
   19.00  -76.53   46.45  -81.91   54.60
   20.00  -75.99   61.45  -77.84   57.23
   21.00  -74.33   76.45  -73.05   58.56
   22.00  -73.81   91.45  -69.10   65.90
   23.00  -72.97  106.45  -65.22   72.95
</PRE>


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