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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>
12 Jun 1997 13:28:38 yearsecs  14045318
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.00  235.31  -49.42  152.13
    1.00  -62.50  250.31  -51.85  162.88
    2.00  -63.02  265.31  -54.63  173.72
    3.00  -63.54  280.31  -57.75  184.68
    4.00  -62.93  295.31  -60.26  197.13
    5.00  -64.07  310.31  -64.80  208.17
    6.00  -64.63  325.31  -69.08  221.32
    7.00  -64.80  340.31  -72.93  238.26
    8.00  -65.26  355.31  -76.59  260.56
    9.00  -64.79   10.31  -77.87  293.21
   10.00  -64.46   25.31  -76.54  327.75
   11.00  -64.34   40.31  -73.17  354.41
   12.00  -64.45   55.31  -69.25   13.88
   13.00  -64.79   70.31  -65.61   29.84
   14.00  -65.35   85.31  -62.47   44.30
   15.00  -66.14  100.31  -59.86   57.81
   16.00  -67.16  115.31  -57.89   70.33
   17.00  -68.42  130.31  -56.75   81.87
   18.00  -68.60  145.31  -55.17   91.73
   19.00  -67.98  160.31  -53.32  101.06
   20.00  -66.50  175.31  -51.07  110.42
   21.00  -65.27  190.31  -49.59  120.28
   22.00  -63.85  205.31  -48.59  130.49
   23.00  -62.59  220.31  -48.42  141.17
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.54  235.31  -58.25  147.46
    1.00  -72.53  250.31  -60.87  155.64
    2.00  -73.50  265.31  -63.80  163.29
    3.00  -74.44  280.31  -67.01  170.24
    4.00  -76.86  295.31  -71.48  172.41
    5.00  -77.93  310.31  -74.93  175.13
    6.00  -77.59  325.31  -77.87  181.59
    7.00  -77.24  340.31  -81.09  187.60
    8.00  -77.79  355.31  -84.49  182.00
    9.00  -77.58   10.31  -87.59  158.92
   10.00  -77.52   25.31  -87.01   77.64
   11.00  -77.28   40.31  -83.57   60.55
   12.00  -76.93   55.31  -79.76   60.03
   13.00  -76.78   70.31  -76.04   64.74
   14.00  -76.81   85.31  -72.67   71.18
   15.00  -76.36  100.31  -69.29   76.74
   16.00  -76.20  115.31  -66.53   83.55
   17.00  -74.79  130.31  -63.05   88.92
   18.00  -74.56  145.31  -61.14   96.62
   19.00  -75.08  160.31  -60.47  105.04
   20.00  -74.63  175.31  -59.27  112.88
   21.00  -72.84  190.31  -57.18  120.87
   22.00  -72.32  205.31  -56.90  129.52
   23.00  -71.43  220.31  -56.83  138.55
</PRE>


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