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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>
25 Apr 1997 23:07:53 yearsecs   9932873
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.86   81.72  -62.81   40.37
    1.00  -64.76   96.72  -59.20   52.96
    2.00  -65.81  111.72  -57.17   66.11
    3.00  -66.85  126.72  -55.67   77.97
    4.00  -66.62  141.72  -53.52   87.96
    5.00  -67.47  156.72  -53.05   98.46
    6.00  -67.52  171.72  -52.23  108.34
    7.00  -67.44  186.72  -51.77  118.11
    8.00  -68.16  201.72  -52.66  127.77
    9.00  -67.97  216.72  -53.26  137.39
   10.00  -67.64  231.72  -54.27  147.24
   11.00  -67.41  246.72  -55.82  157.34
   12.00  -67.44  261.72  -58.00  167.52
   13.00  -67.70  276.72  -60.75  177.64
   14.00  -68.18  291.72  -64.11  187.58
   15.00  -68.89  306.72  -68.08  197.34
   16.00  -69.77  321.72  -72.46  207.29
   17.00  -70.55  336.72  -76.86  218.94
   18.00  -70.38  351.72  -80.47  239.01
   19.00  -69.84    6.72  -82.93  274.98
   20.00  -68.86   21.72  -82.03  323.25
   21.00  -67.90   36.72  -78.14  355.65
   22.00  -67.02   51.72  -73.18   15.00
   23.00  -65.65   66.72  -67.55   28.02
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.86   81.72  -67.96   50.05
    1.00  -70.91   96.72  -65.37   63.02
    2.00  -71.87  111.72  -63.20   74.28
    3.00  -76.52  126.72  -65.15   89.58
    4.00  -78.77  141.72  -65.56   99.64
    5.00  -79.09  156.72  -64.69  106.51
    6.00  -78.34  171.72  -63.17  112.71
    7.00  -77.62  186.72  -62.06  119.57
    8.00  -77.94  201.72  -62.47  126.77
    9.00  -77.61  216.72  -62.65  134.06
   10.00  -77.65  231.72  -63.64  141.25
   11.00  -77.58  246.72  -64.95  148.46
   12.00  -77.78  261.72  -66.87  155.20
   13.00  -77.56  276.72  -68.81  162.43
   14.00  -77.55  291.72  -71.27  169.01
   15.00  -77.28  306.72  -73.91  176.04
   16.00  -77.48  321.72  -77.07  180.91
   17.00  -77.21  336.72  -80.27  186.89
   18.00  -77.73  351.72  -83.70  183.88
   19.00  -77.44    6.72  -87.05  173.27
   20.00  -76.42   21.72  -88.36   61.77
   21.00  -74.44   36.72  -83.84   30.34
   22.00  -72.29   51.72  -78.20   32.42
   23.00  -70.65   66.72  -72.64   40.05
</PRE>


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