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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>
23 Jul 1997 16:59:08 yearsecs  17600348
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.07  180.64  -48.48  113.51
    1.00  -65.67  195.64  -50.06  123.87
    2.00  -66.96  210.64  -51.89  133.66
    3.00  -68.15  225.64  -54.15  143.07
    4.00  -67.94  240.64  -55.54  152.96
    5.00  -68.75  255.64  -58.24  162.30
    6.00  -68.82  270.64  -60.66  172.22
    7.00  -69.02  285.64  -63.58  182.13
    8.00  -69.95  300.64  -67.53  190.97
    9.00  -70.13  315.64  -71.22  201.54
   10.00  -70.21  330.64  -75.06  214.01
   11.00  -69.61  345.64  -78.39  232.91
   12.00  -69.41    0.64  -81.55  260.53
   13.00  -69.46   15.64  -83.08  304.47
   14.00  -69.75   30.64  -81.51  348.97
   15.00  -70.28   45.64  -78.19   17.04
   16.00  -70.89   60.64  -74.52   35.44
   17.00  -71.20   75.64  -70.75   48.71
   18.00  -70.97   90.64  -66.82   58.98
   19.00  -69.99  105.64  -62.58   67.45
   20.00  -69.32  120.64  -59.13   76.49
   21.00  -68.50  135.64  -56.14   85.42
   22.00  -66.08  150.64  -52.12   93.64
   23.00  -64.69  165.64  -49.67  103.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.07  180.64  -53.51  114.49
    1.00  -70.67  195.64  -55.03  123.92
    2.00  -71.96  210.64  -56.77  132.69
    3.00  -77.33  225.64  -62.90  138.54
    4.00  -79.61  240.64  -66.20  143.33
    5.00  -80.14  255.64  -68.09  148.70
    6.00  -79.63  270.64  -69.47  155.51
    7.00  -78.99  285.64  -71.18  162.76
    8.00  -79.28  300.64  -73.79  167.13
    9.00  -79.22  315.64  -76.45  171.54
   10.00  -79.29  330.64  -79.30  173.61
   11.00  -79.01  345.64  -82.24  174.39
   12.00  -78.94    0.64  -85.07  164.43
   13.00  -78.43   15.64  -87.15  126.56
   14.00  -78.01   30.64  -85.66   74.94
   15.00  -77.39   45.64  -82.25   61.43
   16.00  -76.98   60.64  -78.46   62.05
   17.00  -76.20   75.64  -74.47   64.71
   18.00  -76.46   90.64  -71.30   72.49
   19.00  -75.73  105.64  -67.78   77.88
   20.00  -75.31  120.64  -64.90   84.67
   21.00  -73.50  135.64  -61.14   90.27
   22.00  -71.08  150.64  -57.18   96.81
   23.00  -69.69  165.64  -54.73  105.25
</PRE>


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