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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>
01 May 1997 01:31:34 yearsecs  10373494
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.90   46.61  -69.73    0.94
    1.00  -63.52   61.61  -66.42   19.04
    2.00  -64.21   76.61  -63.35   34.71
    3.00  -64.90   91.61  -60.50   48.93
    4.00  -64.64  106.61  -56.97   60.79
    5.00  -65.86  121.61  -55.46   73.42
    6.00  -66.15  136.61  -53.62   84.15
    7.00  -66.02  151.61  -51.98   94.27
    8.00  -66.37  166.61  -51.32  104.56
    9.00  -66.17  181.61  -50.56  114.56
   10.00  -65.75  196.61  -50.15  124.52
   11.00  -65.56  211.61  -50.60  134.55
   12.00  -65.59  226.61  -51.84  144.65
   13.00  -65.85  241.61  -53.75  154.79
   14.00  -66.33  256.61  -56.23  164.89
   15.00  -67.03  271.61  -59.26  174.78
   16.00  -67.96  286.61  -62.87  184.26
   17.00  -68.52  301.61  -66.59  194.19
   18.00  -68.50  316.61  -70.17  205.91
   19.00  -68.37  331.61  -73.87  220.03
   20.00  -67.12  346.61  -76.51  241.85
   21.00  -65.88    1.61  -78.23  271.90
   22.00  -64.54   16.61  -77.54  308.27
   23.00  -63.29   31.61  -73.98  338.92
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.90   46.61  -75.53   10.76
    1.00  -69.13   61.61  -72.61   31.06
    2.00  -70.19   76.61  -69.58   46.86
    3.00  -72.31   91.61  -67.79   62.51
    4.00  -75.33  106.61  -67.27   77.55
    5.00  -76.23  121.61  -65.59   86.65
    6.00  -75.31  136.61  -62.78   92.85
    7.00  -74.37  151.61  -60.39   99.85
    8.00  -75.06  166.61  -60.08  108.39
    9.00  -75.17  181.61  -59.64  116.44
   10.00  -75.47  196.61  -59.87  124.42
   11.00  -75.35  211.61  -60.16  132.34
   12.00  -75.16  226.61  -60.88  140.38
   13.00  -75.04  241.61  -62.11  148.48
   14.00  -75.27  256.61  -64.09  156.23
   15.00  -74.90  271.61  -65.94  164.74
   16.00  -74.92  286.61  -68.51  172.71
   17.00  -73.52  301.61  -70.48  184.11
   18.00  -73.50  316.61  -73.85  193.24
   19.00  -74.09  331.61  -77.82  200.79
   20.00  -73.29  346.61  -81.20  217.15
   21.00  -70.88    1.61  -83.08  256.59
   22.00  -69.54   16.61  -83.14  307.72
   23.00  -68.29   31.61  -79.74  346.83
</PRE>


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