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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>
10 May 1997 23:30:31 yearsecs  11230231
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.67   75.01  -61.93   30.75
    1.00  -63.87   90.01  -59.75   46.03
    2.00  -64.96  105.01  -57.63   59.92
    3.00  -66.08  120.01  -55.95   72.49
    4.00  -65.87  135.01  -53.52   82.83
    5.00  -66.93  150.01  -53.04   93.71
    6.00  -67.10  165.01  -52.14  103.76
    7.00  -66.84  180.01  -51.28  113.62
    8.00  -67.11  195.01  -51.47  123.48
    9.00  -67.49  210.01  -52.37  133.16
   10.00  -67.58  225.01  -53.55  142.87
   11.00  -67.05  240.01  -54.65  153.04
   12.00  -66.98  255.01  -56.58  163.28
   13.00  -67.16  270.01  -59.10  173.53
   14.00  -67.57  285.01  -62.21  183.64
   15.00  -68.21  300.01  -65.96  193.53
   16.00  -69.08  315.01  -70.25  203.36
   17.00  -69.43  330.01  -74.30  215.63
   18.00  -69.58  345.01  -78.20  232.17
   19.00  -69.30    0.01  -81.33  259.47
   20.00  -68.15   15.01  -81.63  303.06
   21.00  -66.39   30.01  -77.95  339.68
   22.00  -64.68   45.01  -72.33    1.64
   23.00  -63.21   60.01  -66.47   16.85
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.67   75.01  -67.53   39.78
    1.00  -68.87   90.01  -64.98   54.36
    2.00  -69.96  105.01  -62.69   66.99
    3.00  -73.29  120.01  -63.11   81.26
    4.00  -76.13  135.01  -63.75   93.06
    5.00  -76.78  150.01  -62.91  101.17
    6.00  -75.88  165.01  -61.00  108.01
    7.00  -75.43  180.01  -59.94  115.65
    8.00  -75.88  195.01  -60.27  123.57
    9.00  -75.68  210.01  -60.43  131.40
   10.00  -75.95  225.01  -61.52  139.08
   11.00  -75.73  240.01  -62.59  147.02
   12.00  -75.68  255.01  -64.24  154.88
   13.00  -75.48  270.01  -66.16  162.98
   14.00  -75.61  285.01  -68.74  170.44
   15.00  -75.24  300.01  -71.34  178.94
   16.00  -75.38  315.01  -74.61  186.25
   17.00  -74.43  330.01  -77.61  198.27
   18.00  -74.58  345.01  -81.44  207.71
   19.00  -74.71    0.01  -85.39  221.09
   20.00  -73.72   15.01  -87.73  296.50
   21.00  -71.39   30.01  -83.29  354.48
   22.00  -69.68   45.01  -77.79   14.02
   23.00  -68.21   60.01  -72.14   27.04
</PRE>


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