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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>
23 Oct 1997 23:34:24 yearsecs  25572864
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.49   76.24  -54.94   24.96
    1.00  -57.93   91.24  -52.42   39.42
    2.00  -58.37  106.24  -50.11   53.49
    3.00  -58.81  121.24  -48.04   66.80
    4.00  -58.88  136.24  -46.07   78.91
    5.00  -59.73  151.24  -45.52   90.82
    6.00  -61.47  166.24  -46.36  102.60
    7.00  -62.92  181.24  -47.31  113.73
    8.00  -62.77  196.24  -47.20  124.24
    9.00  -62.12  211.24  -47.26  134.83
   10.00  -61.70  226.24  -48.13  145.66
   11.00  -61.51  241.24  -49.68  156.70
   12.00  -61.54  256.24  -51.83  167.89
   13.00  -61.79  271.24  -54.52  179.21
   14.00  -62.27  286.24  -57.76  190.57
   15.00  -62.97  301.24  -61.64  201.94
   16.00  -63.90  316.24  -66.13  213.72
   17.00  -65.05  331.24  -70.95  226.85
   18.00  -65.23  346.24  -74.69  245.65
   19.00  -64.01    1.24  -76.26  274.16
   20.00  -62.36   16.24  -75.09  307.83
   21.00  -61.19   31.24  -71.48  336.53
   22.00  -59.41   46.24  -65.32  356.23
   23.00  -58.32   61.24  -59.72   11.42
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.35   76.24  -69.82   46.96
    1.00  -71.20   91.24  -66.89   59.87
    2.00  -72.07  106.24  -64.44   71.24
    3.00  -72.56  121.24  -62.22   80.94
    4.00  -73.55  136.24  -61.11   90.65
    5.00  -74.60  151.24  -60.66   99.84
    6.00  -75.13  166.24  -60.18  108.23
    7.00  -74.26  181.24  -58.73  116.01
    8.00  -74.42  196.24  -58.81  124.24
    9.00  -74.76  211.24  -59.56  132.32
   10.00  -74.34  226.24  -60.06  140.64
   11.00  -74.03  241.24  -61.15  149.14
   12.00  -73.82  256.24  -62.78  157.74
   13.00  -73.70  271.24  -64.89  166.39
   14.00  -73.70  286.24  -67.52  174.89
   15.00  -73.47  301.24  -70.37  184.01
   16.00  -73.75  316.24  -73.92  192.21
   17.00  -73.69  331.24  -77.51  202.22
   18.00  -73.31  346.24  -81.12  216.65
   19.00  -72.61    1.24  -84.43  244.73
   20.00  -72.19   16.24  -86.07  306.16
   21.00  -71.19   31.24  -82.81  356.39
   22.00  -71.21   46.24  -78.86   21.59
   23.00  -70.19   61.24  -73.73   33.77
</PRE>


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