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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>
15 Sep 1997 14:26:52 yearsecs  22256812
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.19  216.94  -43.87  139.68
    1.00  -58.71  231.94  -45.87  150.86
    2.00  -59.22  246.94  -48.28  162.08
    3.00  -59.73  261.94  -51.06  173.42
    4.00  -59.48  276.94  -53.42  185.56
    5.00  -60.37  291.94  -57.18  197.09
    6.00  -61.93  306.94  -62.03  208.08
    7.00  -63.12  321.94  -66.85  220.37
    8.00  -63.17  336.94  -70.62  236.86
    9.00  -62.59  351.94  -73.32  259.25
   10.00  -62.12    6.94  -74.80  288.06
   11.00  -61.93   21.94  -74.05  319.73
   12.00  -61.97   36.94  -71.11  346.30
   13.00  -62.22   51.94  -67.43    6.45
   14.00  -62.71   66.94  -64.02   23.08
   15.00  -63.41   81.94  -61.12   38.24
   16.00  -64.35   96.94  -58.70   52.56
   17.00  -65.50  111.94  -56.81   65.92
   18.00  -65.61  126.94  -54.37   76.98
   19.00  -64.57  141.94  -51.39   86.72
   20.00  -62.94  156.94  -48.42   96.45
   21.00  -61.79  171.94  -46.43  106.84
   22.00  -60.07  186.94  -44.40  117.43
   23.00  -58.96  201.94  -43.64  128.41
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.60  216.94  -56.77  136.49
    1.00  -72.39  231.94  -58.70  144.96
    2.00  -73.26  246.94  -61.10  153.02
    3.00  -73.82  261.94  -63.58  160.96
    4.00  -75.08  276.94  -66.95  167.28
    5.00  -76.27  291.94  -70.46  172.37
    6.00  -76.45  306.94  -73.50  178.84
    7.00  -75.71  321.94  -76.35  188.50
    8.00  -75.97  336.94  -79.97  194.42
    9.00  -76.16  351.94  -83.70  199.19
   10.00  -75.79    6.94  -87.54  210.10
   11.00  -75.45   21.94  -88.34   24.15
   12.00  -75.20   36.94  -84.11   38.04
   13.00  -75.06   51.94  -79.91   47.13
   14.00  -74.99   66.94  -75.89   55.52
   15.00  -74.67   81.94  -71.96   62.79
   16.00  -74.80   96.94  -68.72   71.32
   17.00  -74.42  111.94  -65.51   78.61
   18.00  -74.12  126.94  -62.86   86.24
   19.00  -73.78  141.94  -60.70   94.03
   20.00  -73.36  156.94  -58.97  102.04
   21.00  -72.29  171.94  -57.04  110.11
   22.00  -72.29  186.94  -56.65  118.87
   23.00  -71.33  201.94  -55.81  127.66
</PRE>


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