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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>
21 Oct 1997 12:13:20 yearsecs  25359200
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.35  242.48  -49.70  157.69
    1.00  -62.57  257.48  -52.98  168.17
    2.00  -63.34  272.48  -56.14  178.88
    3.00  -67.88  287.48  -62.97  184.99
    4.00  -67.43  302.48  -65.86  196.66
    5.00  -68.01  317.48  -70.00  207.63
    6.00  -67.87  332.48  -73.68  222.19
    7.00  -68.33  347.48  -77.76  239.78
    8.00  -69.11    2.48  -81.59  265.96
    9.00  -69.44   17.48  -82.99  310.58
   10.00  -69.21   32.48  -80.53  351.22
   11.00  -69.00   47.48  -76.43   15.06
   12.00  -69.01   62.48  -72.26   31.58
   13.00  -69.25   77.48  -68.47   45.33
   14.00  -69.72   92.48  -65.22   57.80
   15.00  -70.42  107.48  -62.63   69.35
   16.00  -71.09  122.48  -60.59   79.79
   17.00  -70.95  137.48  -58.39   88.76
   18.00  -71.38  152.48  -57.32   98.11
   19.00  -70.74  167.48  -55.68  106.83
   20.00  -69.92  182.48  -54.32  115.80
   21.00  -69.13  197.48  -53.52  125.06
   22.00  -65.53  212.48  -50.62  135.13
   23.00  -63.19  227.48  -49.67  146.07
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.35  242.48  -54.32  155.11
    1.00  -67.57  257.48  -57.47  164.51
    2.00  -68.34  272.48  -60.56  173.99
    3.00  -75.10  287.48  -68.81  172.78
    4.00  -77.36  302.48  -73.13  174.05
    5.00  -77.73  317.48  -76.28  178.40
    6.00  -76.72  332.48  -79.17  188.41
    7.00  -75.69  347.48  -82.48  201.31
    8.00  -75.97    2.48  -86.38  204.90
    9.00  -76.12   17.48  -89.49   79.46
   10.00  -75.97   32.48  -85.55   44.79
   11.00  -76.18   47.48  -81.55   52.29
   12.00  -76.61   62.48  -77.86   60.79
   13.00  -76.49   77.48  -74.21   66.61
   14.00  -76.36   92.48  -70.85   73.06
   15.00  -76.23  107.48  -67.87   79.85
   16.00  -76.10  122.48  -65.35   86.86
   17.00  -75.95  137.48  -63.30   94.06
   18.00  -77.24  152.48  -63.17  102.81
   19.00  -77.48  167.48  -62.48  110.21
   20.00  -76.44  182.48  -60.92  117.21
   21.00  -74.13  197.48  -58.53  124.93
   22.00  -70.53  212.48  -55.46  134.11
   23.00  -68.19  227.48  -54.35  144.25
</PRE>


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