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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>
22 Apr 1997 03:21:26 yearsecs   9602486
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.01   20.35  -68.36  316.36
    1.00  -57.30   35.35  -65.45  340.36
    2.00  -57.57   50.35  -61.62  359.16
    3.00  -57.83   65.35  -57.99   14.95
    4.00  -58.07   80.35  -54.84   29.51
    5.00  -58.71   95.35  -52.57   44.07
    6.00  -60.53  110.35  -51.79   59.25
    7.00  -61.99  125.35  -50.81   72.69
    8.00  -61.41  140.35  -48.27   83.58
    9.00  -61.04  155.35  -46.58   94.47
   10.00  -60.83  170.35  -45.52  105.42
   11.00  -60.80  185.35  -45.13  116.36
   12.00  -60.96  200.35  -45.54  127.18
   13.00  -61.33  215.35  -46.79  137.91
   14.00  -61.90  230.35  -48.75  148.58
   15.00  -62.67  245.35  -51.32  159.15
   16.00  -63.66  260.35  -54.41  169.56
   17.00  -64.85  275.35  -58.00  179.66
   18.00  -65.13  290.35  -61.17  190.63
   19.00  -63.80  305.35  -63.35  204.32
   20.00  -62.18  320.35  -65.59  220.15
   21.00  -60.96  335.35  -68.13  238.24
   22.00  -59.10  350.35  -69.48  261.14
   23.00  -57.97    5.35  -70.18  287.97
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.42   20.35  -81.67  318.82
    1.00  -69.35   35.35  -80.00  357.40
    2.00  -70.22   50.35  -76.81   22.64
    3.00  -70.61   65.35  -72.97   38.74
    4.00  -71.31   80.35  -69.64   52.49
    5.00  -72.66   95.35  -67.25   65.63
    6.00  -72.65  110.35  -64.18   74.70
    7.00  -71.82  125.35  -60.87   82.42
    8.00  -71.98  140.35  -59.09   91.43
    9.00  -72.55  155.35  -58.27  100.60
   10.00  -72.10  170.35  -56.91  109.11
   11.00  -71.85  185.35  -56.21  117.87
   12.00  -71.74  200.35  -56.17  126.69
   13.00  -71.65  215.35  -56.72  135.54
   14.00  -71.77  230.35  -57.98  144.37
   15.00  -71.68  245.35  -59.49  153.41
   16.00  -72.17  260.35  -61.92  161.99
   17.00  -72.49  275.35  -64.58  170.56
   18.00  -72.12  290.35  -67.08  180.25
   19.00  -71.00  305.35  -69.44  192.14
   20.00  -70.53  320.35  -72.69  204.24
   21.00  -69.55  335.35  -75.76  220.72
   22.00  -69.56  350.35  -79.48  240.10
   23.00  -68.41    5.35  -81.31  275.28
</PRE>


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