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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>
31 Jul 1997 22:02:34 yearsecs  18309754
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.36   98.74  -58.32   54.07
    1.00  -64.04  113.74  -54.94   65.66
    2.00  -65.00  128.74  -53.47   77.72
    3.00  -65.96  143.74  -52.63   88.87
    4.00  -65.75  158.74  -51.17   98.97
    5.00  -66.78  173.74  -51.41  109.45
    6.00  -66.96  188.74  -51.28  119.38
    7.00  -66.81  203.74  -51.41  129.18
    8.00  -67.48  218.74  -52.94  138.82
    9.00  -67.07  233.74  -53.96  148.84
   10.00  -66.66  248.74  -55.41  159.21
   11.00  -66.47  263.74  -57.46  169.77
   12.00  -66.50  278.74  -60.08  180.42
   13.00  -66.76  293.74  -63.32  191.07
   14.00  -67.24  308.74  -67.19  201.86
   15.00  -67.95  323.74  -71.52  213.33
   16.00  -68.88  338.74  -76.08  226.51
   17.00  -69.88  353.74  -80.53  244.58
   18.00  -69.71    8.74  -83.03  281.51
   19.00  -69.14   23.74  -82.08  329.51
   20.00  -68.03   38.74  -77.77  359.45
   21.00  -67.00   53.74  -72.60   17.32
   22.00  -66.00   68.74  -67.40   30.64
   23.00  -64.90   83.74  -62.36   42.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.36   98.74  -63.44   61.64
    1.00  -70.46  113.74  -61.47   73.48
    2.00  -71.49  128.74  -60.05   84.05
    3.00  -75.06  143.74  -61.78   96.27
    4.00  -77.60  158.74  -63.09  106.11
    5.00  -78.12  173.74  -62.87  113.54
    6.00  -77.35  188.74  -61.77  120.51
    7.00  -76.64  203.74  -61.18  127.97
    8.00  -77.22  218.74  -62.37  135.23
    9.00  -76.94  233.74  -63.13  142.80
   10.00  -77.17  248.74  -64.80  149.92
   11.00  -76.95  263.74  -66.45  157.48
   12.00  -76.97  278.74  -68.69  164.57
   13.00  -76.75  293.74  -71.12  171.98
   14.00  -76.84  308.74  -74.08  178.36
   15.00  -76.51  323.74  -77.12  185.97
   16.00  -76.68  338.74  -80.61  190.81
   17.00  -76.00  353.74  -84.13  201.50
   18.00  -76.21    8.74  -87.99  198.04
   19.00  -76.13   23.74  -87.91   48.15
   20.00  -75.18   38.74  -83.60   39.21
   21.00  -73.08   53.74  -78.21   37.89
   22.00  -71.33   68.74  -72.69   43.73
   23.00  -69.90   83.74  -67.49   51.68
</PRE>


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