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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>
13 May 1997 21:10:40 yearsecs  11481040
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.72  109.00  -56.56   62.75
    1.00  -64.98  124.00  -54.16   74.29
    2.00  -66.04  139.00  -53.22   85.70
    3.00  -67.12  154.00  -52.90   96.48
    4.00  -67.04  169.00  -51.88  106.39
    5.00  -68.11  184.00  -52.47  116.45
    6.00  -68.57  199.00  -52.99  126.03
    7.00  -69.63  214.00  -54.68  135.26
    8.00  -71.64  229.00  -57.73  143.63
    9.00  -73.55  244.00  -61.02  151.09
   10.00  -72.22  259.00  -61.78  161.12
   11.00  -70.82  274.00  -62.95  172.02
   12.00  -69.98  289.00  -65.06  182.99
   13.00  -69.58  304.00  -68.00  194.04
   14.00  -69.57  319.00  -71.62  205.52
   15.00  -69.90  334.00  -75.68  218.23
   16.00  -70.30  349.00  -79.76  235.12
   17.00  -70.20    4.00  -82.88  265.94
   18.00  -70.17   19.00  -83.72  316.21
   19.00  -69.31   34.00  -80.29  354.65
   20.00  -68.27   49.00  -75.27   14.86
   21.00  -67.27   64.00  -70.05   28.77
   22.00  -66.67   79.00  -65.46   41.23
   23.00  -65.84   94.00  -60.95   52.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.17  109.00  -62.08   69.97
    1.00  -71.44  124.00  -60.70   81.14
    2.00  -72.33  139.00  -59.59   90.97
    3.00  -78.03  154.00  -63.83  104.27
    4.00  -80.02  169.00  -64.98  112.53
    5.00  -80.48  184.00  -65.05  119.02
    6.00  -79.87  199.00  -64.40  125.30
    7.00  -78.94  214.00  -63.84  132.19
    8.00  -79.10  229.00  -64.82  138.80
    9.00  -79.13  244.00  -66.07  145.35
   10.00  -78.93  259.00  -67.47  152.11
   11.00  -78.89  274.00  -69.38  158.45
   12.00  -79.05  289.00  -71.74  163.84
   13.00  -78.79  304.00  -74.15  169.90
   14.00  -78.52  319.00  -76.87  175.44
   15.00  -78.27  334.00  -79.87  179.96
   16.00  -78.01  349.00  -83.07  181.88
   17.00  -77.75    4.00  -86.34  173.75
   18.00  -78.82   19.00  -86.66  113.86
   19.00  -79.06   34.00  -84.47   82.60
   20.00  -78.20   49.00  -81.49   67.76
   21.00  -76.25   64.00  -77.32   59.67
   22.00  -73.28   79.00  -71.62   56.88
   23.00  -71.48   94.00  -66.51   62.32
</PRE>


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