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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>
21 Aug 1997 19:31:40 yearsecs  20115100
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.94  136.51  -50.31   81.75
    1.00  -63.33  151.51  -49.22   92.76
    2.00  -63.93  166.51  -48.86  103.62
    3.00  -64.53  181.51  -48.92  114.19
    4.00  -64.25  196.51  -48.67  124.44
    5.00  -65.53  211.51  -50.56  134.48
    6.00  -65.86  226.51  -52.08  144.48
    7.00  -65.74  241.51  -53.64  154.78
    8.00  -66.44  256.51  -56.32  164.73
    9.00  -65.83  271.51  -58.19  175.89
   10.00  -65.42  286.51  -60.63  187.37
   11.00  -65.23  301.51  -63.73  199.20
   12.00  -65.26  316.51  -67.41  211.82
   13.00  -65.52  331.51  -71.43  226.26
   14.00  -66.00  346.51  -75.47  244.40
   15.00  -66.71    1.51  -79.05  270.03
   16.00  -67.64   16.51  -81.03  307.55
   17.00  -68.77   31.51  -80.28  347.86
   18.00  -68.77   46.51  -76.48   13.11
   19.00  -67.94   61.51  -71.45   27.89
   20.00  -66.80   76.51  -66.23   39.31
   21.00  -65.71   91.51  -61.39   50.10
   22.00  -64.56  106.51  -56.90   60.60
   23.00  -63.41  121.51  -52.92   70.99
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.51  136.51  -61.05   90.76
    1.00  -74.40  151.51  -60.43   99.81
    2.00  -75.15  166.51  -60.18  108.38
    3.00  -76.29  181.51  -60.79  116.67
    4.00  -78.63  196.51  -63.10  124.27
    5.00  -79.41  211.51  -64.22  130.87
    6.00  -78.72  226.51  -64.29  137.98
    7.00  -78.09  241.51  -64.89  145.45
    8.00  -78.94  256.51  -67.19  151.03
    9.00  -78.61  271.51  -68.83  158.00
   10.00  -78.64  286.51  -71.09  164.01
   11.00  -78.34  301.51  -73.48  170.55
   12.00  -78.20  316.51  -76.27  176.13
   13.00  -78.24  331.51  -79.34  179.72
   14.00  -78.58  346.51  -82.49  177.65
   15.00  -78.42    1.51  -85.51  168.90
   16.00  -78.53   16.51  -87.04  122.79
   17.00  -77.52   31.51  -85.66   67.33
   18.00  -77.66   46.51  -82.06   63.65
   19.00  -78.03   61.51  -78.58   68.07
   20.00  -77.36   76.51  -74.91   69.54
   21.00  -75.52   91.51  -70.43   70.29
   22.00  -74.64  106.51  -66.70   76.11
   23.00  -73.80  121.51  -63.36   82.84
</PRE>


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