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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 14:27:34 yearsecs  22256854
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.19  216.77  -43.86  139.55
    1.00  -58.71  231.77  -45.85  150.73
    2.00  -59.22  246.77  -48.26  161.95
    3.00  -59.73  261.77  -51.03  173.28
    4.00  -59.48  276.77  -53.39  185.43
    5.00  -60.37  291.77  -57.15  196.95
    6.00  -61.93  306.77  -61.99  207.94
    7.00  -63.12  321.77  -66.81  220.20
    8.00  -63.17  336.77  -70.58  236.65
    9.00  -62.59  351.77  -73.28  258.97
   10.00  -62.12    6.77  -74.79  287.71
   11.00  -61.93   21.77  -74.07  319.39
   12.00  -61.97   36.77  -71.15  346.05
   13.00  -62.22   51.77  -67.48    6.25
   14.00  -62.71   66.77  -64.06   22.91
   15.00  -63.41   81.77  -61.16   38.09
   16.00  -64.35   96.77  -58.74   52.42
   17.00  -65.50  111.77  -56.84   65.79
   18.00  -65.61  126.77  -54.39   76.86
   19.00  -64.57  141.77  -51.41   86.60
   20.00  -62.94  156.77  -48.44   96.33
   21.00  -61.79  171.77  -46.44  106.71
   22.00  -60.07  186.77  -44.40  117.30
   23.00  -58.96  201.77  -43.63  128.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.60  216.77  -56.75  136.39
    1.00  -72.38  231.77  -58.68  144.87
    2.00  -73.25  246.77  -61.08  152.93
    3.00  -73.82  261.77  -63.55  160.86
    4.00  -75.08  276.77  -66.92  167.20
    5.00  -76.26  291.77  -70.43  172.30
    6.00  -76.45  306.77  -73.46  178.78
    7.00  -75.70  321.77  -76.31  188.43
    8.00  -75.96  336.77  -79.93  194.38
    9.00  -76.16  351.77  -83.66  199.18
   10.00  -75.78    6.77  -87.49  210.12
   11.00  -75.44   21.77  -88.39   23.55
   12.00  -75.19   36.77  -84.16   37.87
   13.00  -75.06   51.77  -79.95   47.00
   14.00  -74.99   66.77  -75.93   55.42
   15.00  -74.67   81.77  -72.00   62.69
   16.00  -74.79   96.77  -68.75   71.22
   17.00  -74.41  111.77  -65.54   78.51
   18.00  -74.12  126.77  -62.88   86.15
   19.00  -73.78  141.77  -60.72   93.94
   20.00  -73.35  156.77  -58.98  101.95
   21.00  -72.29  171.77  -57.04  110.01
   22.00  -72.29  186.77  -56.65  118.77
   23.00  -71.33  201.77  -55.80  127.56
</PRE>


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