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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>
19 Aug 1997 11:29:52 yearsecs  19913392
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.60  260.90  -51.70  172.05
    1.00  -61.89  275.90  -55.44  182.77
    2.00  -62.71  290.90  -59.12  193.83
    3.00  -67.69  305.90  -66.89  198.86
    4.00  -67.37  320.90  -70.33  211.95
    5.00  -68.13  335.90  -74.76  225.32
    6.00  -68.22  350.90  -78.46  245.50
    7.00  -68.21    5.90  -81.17  277.21
    8.00  -68.99   20.90  -82.26  321.02
    9.00  -69.21   35.90  -79.72  357.96
   10.00  -68.89   50.90  -75.37   18.96
   11.00  -68.59   65.90  -70.90   33.73
   12.00  -68.54   80.90  -66.89   46.56
   13.00  -68.73   95.90  -63.47   58.52
   14.00  -69.17  110.90  -60.73   69.81
   15.00  -69.84  125.90  -58.83   80.48
   16.00  -70.50  140.90  -57.54   90.44
   17.00  -70.53  155.90  -56.20   99.64
   18.00  -70.73  170.90  -55.51  108.91
   19.00  -70.11  185.90  -54.46  117.95
   20.00  -69.31  200.90  -53.78  127.19
   21.00  -68.55  215.90  -53.76  136.72
   22.00  -64.87  230.90  -51.60  147.86
   23.00  -62.47  245.90  -51.20  159.66
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.60  260.90  -56.24  168.48
    1.00  -66.89  275.90  -59.90  177.97
    2.00  -67.71  290.90  -63.54  187.66
    3.00  -74.69  305.90  -72.20  183.55
    4.00  -76.61  320.90  -76.54  184.36
    5.00  -77.61  335.90  -80.17  184.26
    6.00  -76.87  350.90  -83.53  192.26
    7.00  -75.70    5.90  -87.25  211.63
    8.00  -75.92   20.90  -88.69   42.72
    9.00  -76.04   35.90  -84.62   46.71
   10.00  -75.84   50.90  -80.53   51.46
   11.00  -76.01   65.90  -76.73   59.42
   12.00  -76.42   80.90  -73.39   67.91
   13.00  -76.27   95.90  -70.08   74.42
   14.00  -76.11  110.90  -67.17   81.25
   15.00  -75.95  125.90  -64.73   88.32
   16.00  -75.79  140.90  -62.79   95.61
   17.00  -75.53  155.90  -61.21  103.05
   18.00  -76.76  170.90  -61.60  111.49
   19.00  -77.02  185.90  -61.46  119.06
   20.00  -75.95  200.90  -60.42  126.62
   21.00  -73.58  215.90  -58.63  135.25
   22.00  -69.87  230.90  -56.25  145.68
   23.00  -67.47  245.90  -55.77  156.75
</PRE>


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