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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 Sep 1997 11:45:32 yearsecs  22679132
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.92  253.78  -47.08  168.56
    1.00  -57.31  268.78  -49.94  180.45
    2.00  -57.69  283.78  -53.04  192.64
    3.00  -58.07  298.78  -56.49  205.16
    4.00  -58.36  313.78  -60.29  218.48
    5.00  -59.15  328.78  -64.78  232.92
    6.00  -61.07  343.78  -70.15  249.05
    7.00  -62.24  358.78  -74.10  271.75
    8.00  -62.39   13.78  -75.22  302.51
    9.00  -61.75   28.78  -72.69  332.66
   10.00  -61.33   43.78  -68.52  355.24
   11.00  -61.14   58.78  -64.18   12.46
   12.00  -61.17   73.78  -60.38   27.38
   13.00  -61.43   88.78  -57.22   41.51
   14.00  -61.91  103.78  -54.59   55.20
   15.00  -62.62  118.78  -52.54   68.15
   16.00  -63.55  133.78  -51.28   80.19
   17.00  -64.70  148.78  -50.87   91.58
   18.00  -64.92  163.78  -50.01  102.08
   19.00  -63.58  178.78  -48.02  112.12
   20.00  -61.91  193.78  -46.30  122.49
   21.00  -60.72  208.78  -45.74  133.26
   22.00  -58.90  223.78  -45.19  144.65
   23.00  -57.80  238.78  -45.81  156.42
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.59  253.78  -58.73  160.37
    1.00  -70.52  268.78  -61.81  169.08
    2.00  -71.41  283.78  -65.22  177.36
    3.00  -71.86  298.78  -68.63  186.02
    4.00  -72.67  313.78  -72.63  193.79
    5.00  -73.99  328.78  -77.07  199.31
    6.00  -73.94  343.78  -80.82  210.65
    7.00  -73.34  358.78  -84.35  233.43
    8.00  -73.43   13.78  -87.35  289.03
    9.00  -73.85   28.78  -85.66   10.98
   10.00  -73.38   43.78  -81.22   30.01
   11.00  -73.07   58.78  -76.80   41.99
   12.00  -72.89   73.78  -72.64   52.26
   13.00  -72.76   88.78  -68.83   61.73
   14.00  -72.81  103.78  -65.60   71.06
   15.00  -72.64  118.78  -62.69   79.63
   16.00  -73.03  133.78  -60.90   88.70
   17.00  -73.22  148.78  -59.48   97.34
   18.00  -72.81  163.78  -57.97  105.61
   19.00  -71.83  178.78  -56.33  113.99
   20.00  -71.41  193.78  -55.75  122.82
   21.00  -70.49  208.78  -55.23  131.88
   22.00  -70.54  223.78  -56.24  140.98
   23.00  -69.50  238.78  -56.74  150.84
</PRE>


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