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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>
27 May 1997 20:02:23 yearsecs  12686543
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.43  125.50  -48.07   70.78
    1.00  -60.08  140.50  -46.86   82.90
    2.00  -60.72  155.50  -46.23   94.44
    3.00  -61.36  170.50  -46.06  105.68
    4.00  -60.59  185.50  -44.92  116.44
    5.00  -61.57  200.50  -46.15  127.26
    6.00  -62.79  215.50  -48.21  137.73
    7.00  -63.58  230.50  -50.36  148.07
    8.00  -63.96  245.50  -52.52  158.56
    9.00  -63.37  260.50  -54.17  169.87
   10.00  -62.90  275.50  -56.29  181.57
   11.00  -62.71  290.50  -59.03  193.51
   12.00  -62.75  305.50  -62.44  205.82
   13.00  -63.01  320.50  -66.39  219.11
   14.00  -63.49  335.50  -70.57  234.58
   15.00  -64.20  350.50  -74.62  254.27
   16.00  -65.13    5.50  -77.91  281.71
   17.00  -66.28   20.50  -79.25  317.87
   18.00  -66.29   35.50  -76.63  349.95
   19.00  -65.55   50.50  -71.86   10.33
   20.00  -63.95   65.50  -65.90   23.71
   21.00  -62.83   80.50  -60.78   36.05
   22.00  -61.23   95.50  -55.53   47.22
   23.00  -60.09  110.50  -51.28   58.93
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.58  125.50  -58.63   79.94
    1.00  -70.24  140.50  -57.33   89.98
    2.00  -71.13  155.50  -56.84   99.77
    3.00  -71.78  170.50  -56.58  109.07
    4.00  -73.62  185.50  -58.00  118.24
    5.00  -74.80  200.50  -59.25  126.53
    6.00  -74.75  215.50  -59.76  134.62
    7.00  -73.90  230.50  -59.99  143.24
    8.00  -74.23  245.50  -61.81  151.33
    9.00  -74.02  260.50  -63.54  159.91
   10.00  -73.51  275.50  -65.45  169.10
   11.00  -73.86  290.50  -68.46  176.99
   12.00  -73.83  305.50  -71.54  185.63
   13.00  -73.83  320.50  -74.98  194.61
   14.00  -73.77  335.50  -78.62  204.98
   15.00  -73.34  350.50  -82.23  221.19
   16.00  -73.35    5.50  -85.95  249.65
   17.00  -72.42   20.50  -86.04  327.73
   18.00  -72.25   35.50  -82.68   11.23
   19.00  -72.52   50.50  -78.71   32.27
   20.00  -72.04   65.50  -74.16   43.42
   21.00  -70.62   80.50  -68.98   50.90
   22.00  -70.51   95.50  -65.27   61.43
   23.00  -69.23  110.50  -60.87   69.63
</PRE>


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