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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 Jul 1997 22:18:57 yearsecs  16755537
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.78   93.81  -59.87   50.59
    1.00  -65.03  108.81  -56.93   62.97
    2.00  -66.07  123.81  -55.32   75.19
    3.00  -67.13  138.81  -54.36   86.39
    4.00  -67.02  153.81  -52.81   96.29
    5.00  -68.04  168.81  -52.89  106.61
    6.00  -68.43  183.81  -52.79  116.38
    7.00  -69.39  198.81  -53.80  125.88
    8.00  -71.25  213.81  -56.23  134.73
    9.00  -71.72  228.81  -57.79  143.48
   10.00  -70.58  243.81  -58.32  153.29
   11.00  -69.68  258.81  -59.53  163.55
   12.00  -69.15  273.81  -61.49  173.96
   13.00  -68.98  288.81  -64.18  184.37
   14.00  -69.12  303.81  -67.58  194.75
   15.00  -69.57  318.81  -71.58  205.34
   16.00  -70.06  333.81  -75.75  217.57
   17.00  -70.01  348.81  -79.48  235.97
   18.00  -70.02    3.81  -82.68  266.13
   19.00  -69.20   18.81  -82.66  314.74
   20.00  -68.18   33.81  -79.13  350.97
   21.00  -67.31   48.81  -74.30   12.11
   22.00  -66.75   63.81  -69.55   27.43
   23.00  -65.91   78.81  -64.69   39.64
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.29   93.81  -65.45   59.83
    1.00  -71.52  108.81  -63.42   71.93
    2.00  -72.38  123.81  -61.64   82.20
    3.00  -78.03  138.81  -65.15   97.37
    4.00  -79.99  153.81  -65.77  106.21
    5.00  -80.43  168.81  -65.41  112.74
    6.00  -79.78  183.81  -64.32  118.73
    7.00  -78.79  198.81  -63.28  125.31
    8.00  -78.87  213.81  -63.77  132.13
    9.00  -78.91  228.81  -64.63  138.87
   10.00  -78.76  243.81  -65.71  145.73
   11.00  -78.75  258.81  -67.30  152.32
   12.00  -78.96  273.81  -69.41  158.20
   13.00  -78.73  288.81  -71.52  164.66
   14.00  -78.50  303.81  -73.98  170.82
   15.00  -78.28  318.81  -76.75  176.49
   16.00  -78.05  333.81  -79.79  181.22
   17.00  -77.81  348.81  -83.05  183.68
   18.00  -78.89    3.81  -85.60  159.86
   19.00  -79.15   18.81  -86.33  115.72
   20.00  -78.30   33.81  -84.87   74.86
   21.00  -76.40   48.81  -81.27   54.41
   22.00  -73.43   63.81  -75.69   47.23
   23.00  -71.62   78.81  -70.30   52.16
</PRE>


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