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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>
19 Apr 1997 16:00:18 yearsecs   9388818
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.73  195.07  -46.14  123.40
    1.00  -62.31  210.07  -47.37  133.98
    2.00  -62.91  225.07  -49.16  144.45
    3.00  -63.49  240.07  -51.39  154.91
    4.00  -62.97  255.07  -52.97  166.12
    5.00  -64.18  270.07  -56.48  176.34
    6.00  -64.80  285.07  -59.79  187.00
    7.00  -64.94  300.07  -63.13  198.45
    8.00  -65.57  315.07  -67.32  210.02
    9.00  -64.97  330.07  -70.58  225.73
   10.00  -64.52  345.07  -73.77  245.35
   11.00  -64.33    0.07  -76.43  271.33
   12.00  -64.36   15.07  -77.40  304.69
   13.00  -64.62   30.07  -75.88  337.46
   14.00  -65.10   45.07  -72.82    2.48
   15.00  -65.81   60.07  -69.52   21.64
   16.00  -66.74   75.07  -66.54   37.92
   17.00  -67.90   90.07  -64.00   52.61
   18.00  -67.91  105.07  -60.65   63.94
   19.00  -67.23  120.07  -57.12   73.76
   20.00  -65.82  135.07  -53.46   82.83
   21.00  -64.71  150.07  -50.77   92.48
   22.00  -63.40  165.07  -48.39  102.42
   23.00  -62.23  180.07  -46.64  112.77
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.94  195.07  -54.29  123.56
    1.00  -70.96  210.07  -55.75  132.56
    2.00  -71.95  225.07  -57.68  141.16
    3.00  -72.90  240.07  -60.00  149.35
    4.00  -75.52  255.07  -64.11  155.11
    5.00  -76.62  270.07  -67.09  161.09
    6.00  -76.11  285.07  -69.11  169.41
    7.00  -75.34  300.07  -71.42  178.72
    8.00  -76.20  315.07  -75.07  183.38
    9.00  -75.94  330.07  -78.33  191.41
   10.00  -75.91  345.07  -81.93  198.51
   11.00  -75.74    0.07  -85.72  207.32
   12.00  -75.43   15.07  -89.52  268.04
   13.00  -75.35   30.07  -86.08   34.05
   14.00  -75.47   45.07  -81.96   45.82
   15.00  -75.05   60.07  -77.71   51.85
   16.00  -74.93   75.07  -73.81   59.83
   17.00  -73.44   90.07  -69.11   64.18
   18.00  -73.26  105.07  -65.75   72.67
   19.00  -74.00  120.07  -63.77   82.34
   20.00  -73.44  135.07  -61.14   89.88
   21.00  -71.54  150.07  -57.69   96.79
   22.00  -70.92  165.07  -56.00  105.44
   23.00  -69.91  180.07  -54.36  114.31
</PRE>


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