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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>
28 Oct 1997 22:33:18 yearsecs  26001198
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.40   91.50  -51.69   39.06
    1.00  -57.74  106.50  -49.34   53.10
    2.00  -58.06  121.50  -47.18   66.42
    3.00  -58.34  136.50  -45.47   78.79
    4.00  -58.58  151.50  -44.30   90.50
    5.00  -59.13  166.50  -43.96  102.07
    6.00  -60.67  181.50  -45.05  113.54
    7.00  -61.68  196.50  -46.13  124.41
    8.00  -62.94  211.50  -48.06  134.90
    9.00  -63.37  226.50  -49.74  145.32
   10.00  -63.82  241.50  -51.87  155.77
   11.00  -62.97  256.50  -53.18  167.18
   12.00  -62.71  271.50  -55.40  178.67
   13.00  -62.76  286.50  -58.26  190.27
   14.00  -63.08  301.50  -61.80  202.02
   15.00  -63.65  316.50  -65.97  214.34
   16.00  -64.46  331.50  -70.48  228.22
   17.00  -65.51  346.50  -75.02  245.46
   18.00  -65.68    1.50  -78.01  272.02
   19.00  -64.27   16.50  -77.25  308.05
   20.00  -62.53   31.50  -73.08  338.02
   21.00  -61.25   46.50  -67.67  358.61
   22.00  -59.36   61.50  -61.09   12.94
   23.00  -58.29   76.50  -55.98   26.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.21   91.50  -64.95   56.11
    1.00  -70.05  106.50  -62.46   68.12
    2.00  -70.81  121.50  -60.47   78.84
    3.00  -71.06  136.50  -58.62   88.27
    4.00  -71.58  151.50  -57.61   97.67
    5.00  -72.64  166.50  -57.65  107.10
    6.00  -72.14  181.50  -56.58  115.66
    7.00  -71.89  196.50  -56.26  124.42
    8.00  -72.78  211.50  -57.61  132.99
    9.00  -73.99  226.50  -59.75  140.97
   10.00  -74.24  241.50  -61.38  149.10
   11.00  -73.84  256.50  -62.84  157.87
   12.00  -73.62  271.50  -64.87  166.65
   13.00  -73.44  286.50  -67.36  175.54
   14.00  -73.45  301.50  -70.41  184.22
   15.00  -73.27  316.50  -73.68  193.83
   16.00  -73.64  331.50  -77.55  202.62
   17.00  -73.87  346.50  -81.48  213.54
   18.00  -73.46    1.50  -85.10  237.76
   19.00  -72.27   16.50  -86.15  307.50
   20.00  -71.64   31.50  -83.18  359.45
   21.00  -70.53   46.50  -78.18   19.11
   22.00  -70.35   61.50  -73.81   34.53
   23.00  -69.23   76.50  -68.70   44.49
</PRE>


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