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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>
22 Apr 1997 03:23:46 yearsecs   9602626
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.99   19.78  -68.42  315.34
    1.00  -57.29   34.78  -65.58  339.55
    2.00  -57.56   49.78  -61.76  358.51
    3.00  -57.82   64.78  -58.12   14.38
    4.00  -58.07   79.78  -54.96   28.97
    5.00  -58.72   94.78  -52.70   43.56
    6.00  -60.55  109.78  -51.92   58.78
    7.00  -62.02  124.78  -50.94   72.27
    8.00  -61.47  139.78  -48.40   83.19
    9.00  -61.08  154.78  -46.65   94.06
   10.00  -60.84  169.78  -45.56  105.01
   11.00  -60.80  184.78  -45.14  115.94
   12.00  -60.96  199.78  -45.52  126.77
   13.00  -61.32  214.78  -46.74  137.50
   14.00  -61.89  229.78  -48.68  148.16
   15.00  -62.66  244.78  -51.23  158.73
   16.00  -63.64  259.78  -54.31  169.14
   17.00  -64.84  274.78  -57.89  179.24
   18.00  -65.12  289.78  -61.04  190.21
   19.00  -63.78  304.78  -63.20  203.86
   20.00  -62.17  319.78  -65.43  219.61
   21.00  -60.95  334.78  -67.98  237.57
   22.00  -59.08  349.78  -69.35  260.28
   23.00  -57.95    4.78  -70.13  286.91
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.51   19.78  -81.82  317.22
    1.00  -69.44   34.78  -80.24  356.62
    2.00  -70.32   49.78  -77.07   22.33
    3.00  -70.72   64.78  -73.23   38.58
    4.00  -71.44   79.78  -69.89   52.39
    5.00  -72.79   94.78  -67.49   65.55
    6.00  -72.80  109.78  -64.43   74.62
    7.00  -71.96  124.78  -61.09   82.26
    8.00  -72.11  139.78  -59.28   91.21
    9.00  -72.65  154.78  -58.42  100.34
   10.00  -72.20  169.78  -57.04  108.81
   11.00  -71.93  184.78  -56.31  117.55
   12.00  -71.81  199.78  -56.24  126.35
   13.00  -71.72  214.78  -56.75  135.18
   14.00  -71.83  229.78  -57.98  144.00
   15.00  -71.73  244.78  -59.47  153.03
   16.00  -72.21  259.78  -61.88  161.59
   17.00  -72.53  274.78  -64.51  170.16
   18.00  -72.16  289.78  -66.99  179.83
   19.00  -71.04  304.78  -69.34  191.67
   20.00  -70.58  319.78  -72.59  203.67
   21.00  -69.60  334.78  -75.65  219.95
   22.00  -69.62  349.78  -79.40  238.96
   23.00  -68.49    4.78  -81.31  273.60
</PRE>


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