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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>
24 Apr 1997 11:34:21 yearsecs   9804861
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.17  258.54  -51.85  169.87
    1.00  -61.79  273.54  -54.92  181.01
    2.00  -62.41  288.54  -58.35  192.26
    3.00  -63.02  303.54  -62.22  203.80
    4.00  -62.36  318.54  -65.30  218.13
    5.00  -63.52  333.54  -70.12  232.19
    6.00  -64.28  348.54  -74.29  251.00
    7.00  -64.58    3.54  -77.13  278.14
    8.00  -65.16   18.54  -78.14  312.80
    9.00  -64.53   33.54  -75.03  343.71
   10.00  -64.11   48.54  -70.70    5.27
   11.00  -63.92   63.54  -66.39   21.69
   12.00  -63.96   78.54  -62.57   36.03
   13.00  -64.21   93.54  -59.32   49.53
   14.00  -64.70  108.54  -56.64   62.36
   15.00  -65.40  123.54  -54.67   74.36
   16.00  -66.34  138.54  -53.58   85.60
   17.00  -67.49  153.54  -53.31   96.37
   18.00  -67.49  168.54  -52.35  106.24
   19.00  -66.83  183.54  -51.19  115.94
   20.00  -65.36  198.54  -49.81  125.81
   21.00  -64.26  213.54  -49.47  136.08
   22.00  -62.87  228.54  -49.48  146.93
   23.00  -61.70  243.54  -50.17  158.30
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.92  258.54  -59.70  163.14
    1.00  -70.79  273.54  -62.84  171.77
    2.00  -71.73  288.54  -66.40  179.82
    3.00  -72.58  303.54  -70.22  187.48
    4.00  -74.67  318.54  -75.01  190.56
    5.00  -76.20  333.54  -79.25  191.60
    6.00  -75.98  348.54  -82.81  199.51
    7.00  -75.40    3.54  -86.56  215.38
    8.00  -76.28   18.54  -89.17   74.66
    9.00  -76.21   33.54  -85.29   48.28
   10.00  -76.17   48.54  -81.27   52.67
   11.00  -75.95   63.54  -77.29   57.99
   12.00  -75.64   78.54  -73.44   64.10
   13.00  -75.56   93.54  -70.03   71.42
   14.00  -75.58  108.54  -67.14   79.03
   15.00  -75.13  123.54  -64.30   85.88
   16.00  -75.02  138.54  -62.28   93.51
   17.00  -73.61  153.54  -59.48  100.31
   18.00  -73.35  168.54  -58.26  108.59
   19.00  -73.91  183.54  -58.32  117.20
   20.00  -73.28  198.54  -57.68  125.55
   21.00  -71.40  213.54  -56.37  134.53
   22.00  -70.89  228.54  -56.98  143.72
   23.00  -69.79  243.54  -57.57  153.67
</PRE>


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