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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>
18 Apr 1997 12:48:31 yearsecs   9290911
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.15  241.87  -45.58  159.08
    1.00  -57.41  256.87  -48.04  170.77
    2.00  -57.63  271.87  -50.79  182.77
    3.00  -57.84  286.87  -53.79  195.12
    4.00  -58.03  301.87  -57.15  207.92
    5.00  -58.60  316.87  -61.29  221.19
    6.00  -60.34  331.87  -66.70  234.94
    7.00  -61.72  346.87  -71.45  252.60
    8.00  -61.06    1.87  -73.24  278.91
    9.00  -60.82   16.87  -73.27  309.44
   10.00  -60.69   31.87  -70.72  337.23
   11.00  -60.73   46.87  -66.89  358.45
   12.00  -60.95   61.87  -63.11   15.40
   13.00  -61.36   76.87  -59.87   30.55
   14.00  -61.97   91.87  -57.17   44.98
   15.00  -62.78  106.87  -54.92   58.77
   16.00  -63.78  121.87  -53.25   71.61
   17.00  -65.00  136.87  -52.40   83.46
   18.00  -65.29  151.87  -51.21   94.04
   19.00  -63.99  166.87  -48.89  103.89
   20.00  -62.39  181.87  -46.77  114.09
   21.00  -61.16  196.87  -45.63  124.67
   22.00  -59.29  211.87  -44.55  135.71
   23.00  -58.13  226.87  -44.76  147.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.51  241.87  -61.66  149.08
    1.00  -75.37  256.87  -64.21  156.25
    2.00  -76.19  271.87  -67.02  162.73
    3.00  -76.68  286.87  -69.84  169.00
    4.00  -77.39  301.87  -73.03  173.71
    5.00  -78.49  316.87  -76.44  174.98
    6.00  -78.63  331.87  -79.48  177.52
    7.00  -77.75  346.87  -82.62  184.38
    8.00  -77.64    1.87  -85.95  178.50
    9.00  -77.83   16.87  -87.79  120.00
   10.00  -77.34   31.87  -85.62   64.56
   11.00  -76.99   46.87  -81.90   58.32
   12.00  -76.74   61.87  -78.06   61.25
   13.00  -76.53   76.87  -74.37   66.50
   14.00  -76.48   91.87  -71.06   73.11
   15.00  -76.27  106.87  -68.01   79.64
   16.00  -76.51  121.87  -65.81   87.25
   17.00  -76.65  136.87  -64.04   94.64
   18.00  -76.37  151.87  -62.35  101.70
   19.00  -75.62  166.87  -60.63  108.83
   20.00  -75.39  181.87  -59.87  116.63
   21.00  -74.80  196.87  -59.20  124.57
   22.00  -74.97  211.87  -59.80  132.59
   23.00  -74.31  226.87  -60.08  141.00
</PRE>


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