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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>
28 Oct 1997 00:25:12 yearsecs  25921512
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.64   63.64  -59.55   14.22
    1.00  -59.25   78.64  -56.77   29.37
    2.00  -59.86   93.64  -54.31   43.88
    3.00  -60.50  108.64  -52.08   57.77
    4.00  -60.01  123.64  -48.96   69.73
    5.00  -61.13  138.64  -48.16   82.13
    6.00  -62.59  153.64  -48.30   93.92
    7.00  -63.13  168.64  -47.94  104.86
    8.00  -63.00  183.64  -47.35  115.43
    9.00  -61.88  198.64  -46.39  125.94
   10.00  -61.67  213.64  -46.99  136.62
   11.00  -61.62  228.64  -48.31  147.43
   12.00  -61.76  243.64  -50.23  158.36
   13.00  -62.09  258.64  -52.72  169.36
   14.00  -62.64  273.64  -55.72  180.37
   15.00  -63.41  288.64  -59.28  191.28
   16.00  -64.39  303.64  -63.48  202.09
   17.00  -65.59  318.64  -68.24  213.21
   18.00  -65.26  333.64  -71.73  229.18
   19.00  -64.84  348.64  -74.86  250.09
   20.00  -63.26    3.64  -75.75  280.07
   21.00  -62.16   18.64  -74.67  312.98
   22.00  -60.49   33.64  -70.06  339.93
   23.00  -59.35   48.64  -64.56  359.04
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.51   63.64  -69.33   26.75
    1.00  -67.21   78.64  -66.12   41.97
    2.00  -68.11   93.64  -63.37   55.75
    3.00  -68.65  108.64  -60.66   67.54
    4.00  -70.37  123.64  -59.70   79.65
    5.00  -71.43  138.64  -58.74   89.91
    6.00  -72.24  153.64  -58.09   99.39
    7.00  -71.58  168.64  -56.47  107.88
    8.00  -72.22  183.64  -56.61  116.93
    9.00  -72.43  198.64  -56.84  125.66
   10.00  -72.24  213.64  -57.19  134.37
   11.00  -71.93  228.64  -57.97  143.27
   12.00  -71.71  243.64  -59.31  152.36
   13.00  -71.68  258.64  -61.25  161.47
   14.00  -71.66  273.64  -63.59  170.70
   15.00  -71.26  288.64  -66.05  180.68
   16.00  -71.38  303.64  -69.34  190.18
   17.00  -70.59  318.64  -72.32  202.74
   18.00  -70.26  333.64  -75.86  216.77
   19.00  -70.19  348.64  -79.58  235.02
   20.00  -69.56    3.64  -82.21  267.39
   21.00  -67.93   18.64  -81.25  313.63
   22.00  -67.71   33.64  -78.65  349.49
   23.00  -66.26   48.64  -73.18    9.49
</PRE>


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