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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>
11 May 1997 23:18:30 yearsecs  11315910
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.66   77.87  -64.65   38.35
    1.00  -65.90   92.87  -61.28   51.51
    2.00  -66.91  107.87  -59.06   64.62
    3.00  -67.93  122.87  -57.37   76.42
    4.00  -67.81  137.87  -55.17   86.30
    5.00  -68.78  152.87  -54.68   96.69
    6.00  -69.14  167.87  -54.05  106.42
    7.00  -70.11  182.87  -54.50  116.08
    8.00  -71.80  197.87  -56.19  125.23
    9.00  -71.28  212.87  -56.21  134.16
   10.00  -70.90  227.87  -56.93  143.31
   11.00  -70.16  242.87  -57.82  153.00
   12.00  -69.76  257.87  -59.46  162.86
   13.00  -69.65  272.87  -61.75  172.75
   14.00  -69.82  287.87  -64.70  182.47
   15.00  -70.28  302.87  -68.30  191.89
   16.00  -70.75  317.87  -72.24  201.74
   17.00  -70.71  332.87  -75.99  214.59
   18.00  -70.71  347.87  -79.79  231.77
   19.00  -69.90    2.87  -82.41  264.12
   20.00  -68.94   17.87  -82.42  311.66
   21.00  -68.13   32.87  -79.29  348.97
   22.00  -67.53   47.87  -74.80   11.46
   23.00  -66.73   62.87  -69.78   26.45
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.40   77.87  -70.35   50.90
    1.00  -72.60   92.87  -67.76   63.96
    2.00  -73.45  107.87  -65.38   74.62
    3.00  -78.79  122.87  -67.67   91.79
    4.00  -80.66  137.87  -67.66  100.92
    5.00  -81.11  152.87  -66.91  107.15
    6.00  -80.55  167.87  -65.56  112.45
    7.00  -79.71  182.87  -64.27  118.30
    8.00  -79.68  197.87  -64.19  124.82
    9.00  -79.62  212.87  -64.49  131.37
   10.00  -79.38  227.87  -65.02  138.07
   11.00  -79.37  242.87  -66.18  144.57
   12.00  -79.56  257.87  -67.86  150.57
   13.00  -79.33  272.87  -69.54  157.04
   14.00  -79.09  287.87  -71.59  163.31
   15.00  -78.86  302.87  -73.98  169.26
   16.00  -78.63  317.87  -76.68  174.66
   17.00  -78.39  332.87  -79.65  179.05
   18.00  -79.41  347.87  -82.58  170.51
   19.00  -79.64    2.87  -84.92  154.51
   20.00  -78.86   17.87  -86.67  118.05
   21.00  -77.07   32.87  -85.44   60.18
   22.00  -74.30   47.87  -80.63   39.60
   23.00  -72.62   62.87  -75.34   43.42
</PRE>


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