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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 May 1997 22:31:28 yearsecs  12349888
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.69   88.87  -60.91   46.29
    1.00  -65.98  103.87  -58.93   60.37
    2.00  -66.87  118.87  -56.96   72.53
    3.00  -68.96  133.87  -56.83   84.68
    4.00  -69.29  148.87  -55.53   94.47
    5.00  -70.75  163.87  -55.89  104.63
    6.00  -72.02  178.87  -56.52  114.09
    7.00  -71.55  193.87  -55.89  122.87
    8.00  -73.64  208.87  -58.35  131.30
    9.00  -73.05  223.87  -58.64  139.96
   10.00  -71.59  238.87  -58.67  149.57
   11.00  -70.52  253.87  -59.56  159.64
   12.00  -69.84  268.87  -61.24  169.91
   13.00  -69.52  283.87  -63.66  180.22
   14.00  -69.53  298.87  -66.80  190.47
   15.00  -69.86  313.87  -70.58  200.78
   16.00  -70.23  328.87  -74.62  212.31
   17.00  -70.09  343.87  -78.33  228.84
   18.00  -70.01  358.87  -81.76  254.18
   19.00  -69.28   13.87  -82.87  298.77
   20.00  -68.39   28.87  -80.41  341.02
   21.00  -67.74   43.87  -76.11    6.56
   22.00  -67.35   58.87  -71.55   23.76
   23.00  -66.04   73.87  -66.09   35.47
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.69   88.87  -66.04   55.09
    1.00  -70.98  103.87  -63.90   67.89
    2.00  -71.87  118.87  -61.94   78.61
    3.00  -77.68  133.87  -65.35   94.65
    4.00  -79.67  148.87  -65.81  103.81
    5.00  -79.93  163.87  -65.12  110.31
    6.00  -79.65  178.87  -64.29  116.55
    7.00  -78.98  193.87  -63.44  123.06
    8.00  -79.52  208.87  -64.25  129.67
    9.00  -79.20  223.87  -64.60  136.45
   10.00  -78.75  238.87  -65.26  143.53
   11.00  -78.65  253.87  -66.66  150.32
   12.00  -78.79  268.87  -68.61  156.53
   13.00  -78.49  283.87  -70.58  163.34
   14.00  -78.21  298.87  -72.93  169.99
   15.00  -77.93  313.87  -75.64  176.36
   16.00  -77.66  328.87  -78.65  182.26
   17.00  -77.38  343.87  -81.93  187.19
   18.00  -78.46  358.87  -85.00  171.70
   19.00  -78.70   13.87  -86.82  133.11
   20.00  -77.81   28.87  -86.12   74.86
   21.00  -75.88   43.87  -82.43   48.46
   22.00  -72.87   58.87  -76.63   41.23
   23.00  -71.04   73.87  -71.06   46.91
</PRE>


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