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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>
23 Sep 1997 17:53:08 yearsecs  22960388
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.66  160.60  -47.90   98.95
    1.00  -64.10  175.60  -48.64  110.02
    2.00  -65.29  190.60  -49.62  120.47
    3.00  -67.20  205.60  -51.87  130.35
    4.00  -66.90  220.60  -52.53  140.21
    5.00  -67.65  235.60  -54.69  149.79
    6.00  -67.62  250.60  -56.53  159.81
    7.00  -67.65  265.60  -58.79  170.00
    8.00  -68.45  280.60  -62.12  179.43
    9.00  -68.44  295.60  -65.17  189.96
   10.00  -68.12  310.60  -68.38  201.76
   11.00  -67.93  325.60  -71.99  215.10
   12.00  -67.97  340.60  -75.80  231.35
   13.00  -68.23  355.60  -79.47  253.85
   14.00  -68.71   10.60  -82.13  289.32
   15.00  -69.42   25.60  -82.11  335.31
   16.00  -70.24   40.60  -79.53    9.69
   17.00  -70.69   55.60  -75.76   29.96
   18.00  -70.75   70.60  -71.68   43.55
   19.00  -70.19   85.60  -67.31   53.71
   20.00  -69.27  100.60  -62.95   62.82
   21.00  -67.85  115.60  -58.53   71.35
   22.00  -65.25  130.60  -53.47   79.25
   23.00  -63.54  145.60  -49.96   88.67
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.66  160.60  -52.98  101.10
    1.00  -69.10  175.60  -53.67  111.30
    2.00  -70.29  190.60  -54.61  120.84
    3.00  -75.88  205.60  -60.47  129.07
    4.00  -78.32  220.60  -63.55  135.53
    5.00  -78.80  235.60  -65.03  142.01
    6.00  -78.13  250.60  -65.85  149.58
    7.00  -77.37  265.60  -67.05  157.67
    8.00  -77.65  280.60  -69.48  163.96
    9.00  -77.41  295.60  -71.87  171.03
   10.00  -77.38  310.60  -74.73  177.24
   11.00  -77.13  325.60  -77.77  183.87
   12.00  -77.23  340.60  -81.16  187.75
   13.00  -76.85  355.60  -84.66  192.42
   14.00  -76.63   10.60  -88.30  179.62
   15.00  -76.21   25.60  -87.41   49.18
   16.00  -76.14   40.60  -83.38   49.40
   17.00  -75.69   55.60  -79.22   52.83
   18.00  -76.33   70.60  -75.74   62.95
   19.00  -75.88   85.60  -71.99   68.39
   20.00  -74.98  100.60  -68.13   73.68
   21.00  -72.85  115.60  -63.43   78.09
   22.00  -70.25  130.60  -58.56   83.86
   23.00  -68.54  145.60  -55.08   91.87
</PRE>


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