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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
28 Apr 1997 02:08:14 yearsecs  10116494
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.50   37.94  -73.95  351.01
    1.00  -64.41   52.94  -69.85   11.09
    2.00  -65.51   67.94  -67.07   28.94
    3.00  -66.62   82.94  -64.42   44.50
    4.00  -66.44   97.94  -60.69   56.40
    5.00  -67.35  112.94  -58.52   68.87
    6.00  -67.44  127.94  -56.10   79.37
    7.00  -67.29  142.94  -54.08   89.26
    8.00  -67.93  157.94  -53.42   99.49
    9.00  -67.66  172.94  -52.33  109.18
   10.00  -67.25  187.94  -51.58  118.89
   11.00  -67.06  202.94  -51.63  128.64
   12.00  -67.10  217.94  -52.51  138.40
   13.00  -67.36  232.94  -54.13  148.17
   14.00  -67.84  247.94  -56.37  157.87
   15.00  -68.55  262.94  -59.16  167.33
   16.00  -69.47  277.94  -62.50  176.33
   17.00  -70.39  292.94  -66.22  184.94
   18.00  -70.16  307.94  -69.39  195.74
   19.00  -69.63  322.94  -72.66  208.67
   20.00  -68.62  337.94  -75.67  226.32
   21.00  -67.63  352.94  -78.37  250.72
   22.00  -66.69    7.94  -79.78  285.27
   23.00  -65.19   22.94  -77.73  323.08
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.50   37.94  -79.50    2.57
    1.00  -70.53   52.94  -76.37   26.62
    2.00  -71.52   67.94  -73.07   43.68
    3.00  -76.02   82.94  -72.67   67.53
    4.00  -78.36   97.94  -71.19   80.96
    5.00  -78.65  112.94  -68.94   87.51
    6.00  -77.91  127.94  -66.26   92.37
    7.00  -77.40  142.94  -64.14   98.46
    8.00  -77.96  157.94  -63.49  106.03
    9.00  -77.74  172.94  -62.51  112.98
   10.00  -78.06  187.94  -62.51  120.23
   11.00  -77.79  202.94  -62.33  127.38
   12.00  -77.93  217.94  -63.02  134.49
   13.00  -77.67  232.94  -63.76  141.81
   14.00  -77.67  247.94  -65.15  148.94
   15.00  -77.36  262.94  -66.69  156.44
   16.00  -77.61  277.94  -69.04  162.85
   17.00  -77.32  292.94  -71.34  170.15
   18.00  -77.67  307.94  -74.35  175.18
   19.00  -77.17  322.94  -77.21  182.72
   20.00  -76.02  337.94  -80.23  194.55
   21.00  -73.90  352.94  -83.17  220.01
   22.00  -71.82    7.94  -85.06  270.50
   23.00  -70.19   22.94  -83.35  329.44
</PRE>


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