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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>
07 Jul 1997 23:32:13 yearsecs  16241533
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.05   75.73  -54.46   23.98
    1.00  -57.34   90.73  -51.77   38.28
    2.00  -57.61  105.73  -49.32   52.27
    3.00  -57.86  120.73  -47.08   65.61
    4.00  -58.09  135.73  -45.29   78.02
    5.00  -58.72  150.73  -44.51   89.97
    6.00  -60.52  165.73  -45.42  101.93
    7.00  -61.97  180.73  -46.37  113.20
    8.00  -61.28  195.73  -45.71  123.86
    9.00  -60.87  210.73  -46.01  134.65
   10.00  -60.70  225.73  -47.13  145.59
   11.00  -60.71  240.73  -48.86  156.68
   12.00  -60.90  255.73  -51.16  167.89
   13.00  -61.29  270.73  -53.97  179.21
   14.00  -61.87  285.73  -57.29  190.55
   15.00  -62.66  300.73  -61.23  201.90
   16.00  -63.66  315.73  -65.78  213.62
   17.00  -64.86  330.73  -70.65  226.65
   18.00  -65.14  345.73  -74.50  245.08
   19.00  -63.81    0.73  -75.99  273.41
   20.00  -62.21   15.73  -74.94  306.77
   21.00  -61.01   30.73  -71.37  335.55
   22.00  -59.15   45.73  -65.10  355.34
   23.00  -58.01   60.73  -59.42   10.56
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.74   75.73  -72.02   53.12
    1.00  -73.62   90.73  -69.11   65.01
    2.00  -74.46  105.73  -66.68   75.33
    3.00  -74.92  120.73  -64.52   84.09
    4.00  -75.63  135.73  -63.19   92.78
    5.00  -76.82  150.73  -62.89  101.56
    6.00  -77.15  165.73  -62.23  109.15
    7.00  -76.58  180.73  -61.10  116.36
    8.00  -76.33  195.73  -60.74  123.94
    9.00  -76.59  210.73  -61.37  131.50
   10.00  -76.10  225.73  -61.71  139.36
   11.00  -75.75  240.73  -62.68  147.37
   12.00  -75.53  255.73  -64.20  155.45
   13.00  -75.33  270.73  -66.15  163.58
   14.00  -75.31  285.73  -68.65  171.43
   15.00  -75.12  300.73  -71.40  179.63
   16.00  -75.42  315.73  -74.80  186.47
   17.00  -75.59  330.73  -78.34  193.41
   18.00  -75.19  345.73  -81.87  204.02
   19.00  -74.28    0.73  -85.39  227.30
   20.00  -73.97   15.73  -88.02  301.81
   21.00  -73.27   30.73  -84.74    9.48
   22.00  -73.39   45.73  -80.68   32.13
   23.00  -72.59   60.73  -75.91   41.61
</PRE>


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