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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>
20 Jul 1997 19:16:36 yearsecs  17349396
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.68  139.85  -50.69   84.65
    1.00  -63.66  154.85  -49.31   95.29
    2.00  -64.45  169.85  -49.22  106.11
    3.00  -65.22  184.85  -49.57  116.58
    4.00  -64.98  199.85  -49.48  126.70
    5.00  -66.14  214.85  -51.37  136.59
    6.00  -66.40  229.85  -52.92  146.53
    7.00  -66.27  244.85  -54.54  156.78
    8.00  -66.96  259.85  -57.29  166.63
    9.00  -66.53  274.85  -59.39  177.60
   10.00  -66.04  289.85  -61.87  189.12
   11.00  -65.78  304.85  -65.00  201.08
   12.00  -65.83  319.85  -68.74  213.91
   13.00  -66.09  334.85  -72.76  228.88
   14.00  -66.58  349.85  -76.74  248.23
   15.00  -67.29    4.85  -80.10  276.54
   16.00  -68.23   19.85  -81.50  317.21
   17.00  -69.30   34.85  -80.07  356.26
   18.00  -69.22   49.85  -75.99   18.69
   19.00  -68.59   64.85  -71.19   32.74
   20.00  -67.39   79.85  -66.00   43.34
   21.00  -66.33   94.85  -61.28   53.78
   22.00  -65.26  109.85  -56.96   64.04
   23.00  -64.23  124.85  -53.25   74.23
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.62  139.85  -58.79   90.80
    1.00  -72.73  154.85  -58.50  100.43
    2.00  -73.72  169.85  -58.57  109.50
    3.00  -76.02  184.85  -60.46  118.33
    4.00  -78.49  199.85  -62.99  125.82
    5.00  -79.21  214.85  -64.15  132.44
    6.00  -78.59  229.85  -64.40  139.60
    7.00  -78.00  244.85  -65.13  147.10
    8.00  -78.74  259.85  -67.42  152.78
    9.00  -78.45  274.85  -69.18  159.74
   10.00  -78.51  289.85  -71.55  165.67
   11.00  -78.37  304.85  -74.10  171.64
   12.00  -78.20  319.85  -76.93  177.14
   13.00  -77.98  334.85  -80.00  181.82
   14.00  -78.05  349.85  -83.25  181.33
   15.00  -77.68    4.85  -86.55  173.30
   16.00  -77.67   19.85  -87.76  101.45
   17.00  -76.62   34.85  -84.96   53.66
   18.00  -76.60   49.85  -81.05   56.17
   19.00  -76.85   64.85  -77.38   62.89
   20.00  -76.08   79.85  -73.42   66.26
   21.00  -74.14   94.85  -68.62   68.63
   22.00  -72.94  109.85  -64.55   74.89
   23.00  -71.91  124.85  -61.03   82.23
</PRE>


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