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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>
29 Aug 1997 16:12:52 yearsecs  20794372
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.93  191.71  -46.28  121.02
    1.00  -62.75  206.71  -47.59  131.57
    2.00  -63.57  221.71  -49.47  141.90
    3.00  -64.36  236.71  -51.79  152.12
    4.00  -64.15  251.71  -53.55  162.92
    5.00  -65.60  266.71  -57.17  172.65
    6.00  -66.44  281.71  -60.59  182.64
    7.00  -66.90  296.71  -64.10  193.09
    8.00  -67.95  311.71  -68.51  202.97
    9.00  -68.13  326.71  -72.43  215.72
   10.00  -67.31  341.71  -75.51  234.51
   11.00  -66.50  356.71  -78.05  260.58
   12.00  -66.04   11.71  -79.28  295.56
   13.00  -65.90   26.71  -77.98  332.05
   14.00  -66.02   41.71  -74.78  359.48
   15.00  -66.41   56.71  -71.12   19.30
   16.00  -67.03   71.71  -67.73   35.50
   17.00  -66.86   86.71  -63.74   48.07
   18.00  -66.54  101.71  -59.97   59.47
   19.00  -66.40  116.71  -56.85   70.46
   20.00  -64.62  131.71  -52.66   79.53
   21.00  -63.96  146.71  -50.29   89.70
   22.00  -63.01  161.71  -48.18   99.88
   23.00  -62.13  176.71  -46.62  110.36
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.01  191.71  -52.33  121.38
    1.00  -69.25  206.71  -53.92  130.80
    2.00  -70.41  221.71  -55.95  139.77
    3.00  -71.53  236.71  -58.38  148.31
    4.00  -74.47  251.71  -62.76  154.51
    5.00  -75.67  266.71  -65.83  160.96
    6.00  -75.09  281.71  -67.77  169.78
    7.00  -74.26  296.71  -69.99  179.59
    8.00  -75.21  311.71  -73.79  185.08
    9.00  -74.88  326.71  -77.05  194.40
   10.00  -74.85  341.71  -80.72  203.67
   11.00  -74.69  356.71  -84.52  217.27
   12.00  -74.34   11.71  -88.00  264.10
   13.00  -74.22   26.71  -86.44   10.43
   14.00  -74.33   41.71  -82.38   34.53
   15.00  -73.82   56.71  -77.89   43.76
   16.00  -73.63   71.71  -73.74   53.28
   17.00  -71.86   86.71  -68.55   58.25
   18.00  -71.54  101.71  -64.87   67.46
   19.00  -71.82  116.71  -62.26   77.24
   20.00  -71.57  131.71  -59.73   85.92
   21.00  -69.48  146.71  -55.92   93.25
   22.00  -68.87  161.71  -54.13  102.39
   23.00  -67.90  176.71  -52.43  111.70
</PRE>


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