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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>
24 Oct 1997 13:15:14 yearsecs  25622114
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.89  226.84  -44.52  147.24
    1.00  -57.99  241.84  -46.40  158.70
    2.00  -58.04  256.84  -48.64  170.40
    3.00  -58.03  271.84  -51.16  182.47
    4.00  -57.95  286.84  -53.89  195.01
    5.00  -58.18  301.84  -57.28  207.74
    6.00  -59.44  316.84  -62.10  220.21
    7.00  -59.88  331.84  -66.23  235.50
    8.00  -59.36  346.84  -69.07  255.57
    9.00  -61.03    1.84  -73.20  278.88
   10.00  -60.71   16.84  -73.15  309.39
   11.00  -60.91   31.84  -71.01  337.34
   12.00  -61.28   46.84  -67.62  359.08
   13.00  -61.83   61.84  -64.25   16.62
   14.00  -62.54   76.84  -61.32   32.25
   15.00  -63.44   91.84  -58.84   46.97
   16.00  -64.51  106.84  -56.78   60.80
   17.00  -65.56  121.84  -55.11   73.29
   18.00  -65.24  136.84  -52.65   83.62
   19.00  -64.22  151.84  -50.11   93.45
   20.00  -63.38  166.84  -48.28  103.66
   21.00  -62.12  181.84  -46.50  114.02
   22.00  -60.21  196.84  -44.69  124.65
   23.00  -58.98  211.84  -44.25  135.73
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.23  226.84  -52.46  144.57
    1.00  -67.16  241.84  -54.97  154.21
    2.00  -68.02  256.84  -57.77  163.70
    3.00  -68.34  271.84  -60.45  173.56
    4.00  -69.01  286.84  -63.81  182.97
    5.00  -70.37  301.84  -68.14  191.02
    6.00  -70.39  316.84  -71.71  201.85
    7.00  -68.48  331.84  -74.02  219.99
    8.00  -68.49  346.84  -77.75  238.32
    9.00  -69.56    1.84  -81.90  262.84
   10.00  -69.29   16.84  -82.86  308.45
   11.00  -69.19   31.84  -80.65  349.79
   12.00  -69.21   46.84  -76.82   14.89
   13.00  -69.24   61.84  -72.66   31.59
   14.00  -69.49   76.84  -68.86   45.36
   15.00  -69.48   91.84  -65.14   56.87
   16.00  -70.12  106.84  -62.46   68.46
   17.00  -70.56  121.84  -60.18   78.75
   18.00  -70.24  136.84  -57.75   87.71
   19.00  -69.22  151.84  -55.20   96.31
   20.00  -68.84  166.84  -53.80  105.65
   21.00  -67.71  181.84  -52.10  114.98
   22.00  -67.64  196.84  -52.03  124.67
   23.00  -66.31  211.84  -51.33  134.57
</PRE>


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