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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>
29 Aug 1997 19:35:24 yearsecs  20806524
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.26  135.47  -44.43   77.32
    1.00  -57.67  150.47  -43.44   89.31
    2.00  -58.08  165.47  -42.93  100.98
    3.00  -58.49  180.47  -42.86  112.43
    4.00  -58.64  195.47  -43.10  123.62
    5.00  -59.46  210.47  -44.62  134.66
    6.00  -61.29  225.47  -47.66  145.23
    7.00  -62.78  240.47  -50.77  155.54
    8.00  -62.59  255.47  -52.68  166.66
    9.00  -61.95  270.47  -54.53  178.49
   10.00  -61.54  285.47  -56.94  190.67
   11.00  -61.35  300.47  -59.97  203.21
   12.00  -61.39  315.47  -63.62  216.51
   13.00  -61.65  330.47  -67.61  231.56
   14.00  -62.13  345.47  -71.56  249.95
   15.00  -62.84    0.47  -74.95  274.22
   16.00  -63.78   15.47  -76.73  305.80
   17.00  -64.94   30.47  -76.17  338.60
   18.00  -65.14   45.47  -72.75    3.10
   19.00  -63.80   60.47  -67.07   18.33
   20.00  -62.21   75.47  -61.26   30.48
   21.00  -61.02   90.47  -56.36   42.49
   22.00  -59.22  105.47  -51.23   53.69
   23.00  -58.12  120.47  -47.41   65.61
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.88  135.47  -59.55   88.46
    1.00  -72.80  150.47  -58.92   97.97
    2.00  -73.71  165.47  -58.79  107.05
    3.00  -74.26  180.47  -58.75  115.59
    4.00  -75.20  195.47  -59.59  123.82
    5.00  -76.45  210.47  -61.21  131.42
    6.00  -76.78  225.47  -62.35  138.81
    7.00  -76.01  240.47  -62.89  147.01
    8.00  -76.15  255.47  -64.70  154.53
    9.00  -76.51  270.47  -67.06  161.48
   10.00  -76.19  285.47  -69.24  169.44
   11.00  -76.03  300.47  -71.94  177.07
   12.00  -75.72  315.47  -74.90  185.30
   13.00  -75.42  330.47  -78.21  194.06
   14.00  -75.28  345.47  -81.83  203.27
   15.00  -74.94    0.47  -85.61  218.66
   16.00  -75.09   15.47  -89.22  291.67
   17.00  -74.99   30.47  -85.84   29.17
   18.00  -74.47   45.47  -81.39   38.78
   19.00  -73.75   60.47  -76.81   46.19
   20.00  -73.39   75.47  -72.60   54.95
   21.00  -72.52   90.47  -68.24   62.27
   22.00  -72.57  105.47  -65.05   71.66
   23.00  -71.66  120.47  -61.47   79.29
</PRE>


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