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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 11:34:44 yearsecs   9804884
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.17  258.45  -51.83  169.80
    1.00  -61.79  273.45  -54.91  180.94
    2.00  -62.41  288.45  -58.33  192.19
    3.00  -63.02  303.45  -62.20  203.73
    4.00  -62.36  318.45  -65.28  218.04
    5.00  -63.52  333.45  -70.10  232.09
    6.00  -64.28  348.45  -74.27  250.86
    7.00  -64.58    3.45  -77.12  277.95
    8.00  -65.16   18.45  -78.14  312.59
    9.00  -64.53   33.45  -75.05  343.55
   10.00  -64.11   48.45  -70.72    5.16
   11.00  -63.92   63.45  -66.41   21.59
   12.00  -63.96   78.45  -62.59   35.95
   13.00  -64.21   93.45  -59.34   49.46
   14.00  -64.70  108.45  -56.65   62.29
   15.00  -65.40  123.45  -54.69   74.29
   16.00  -66.34  138.45  -53.59   85.54
   17.00  -67.49  153.45  -53.32   96.32
   18.00  -67.49  168.45  -52.36  106.18
   19.00  -66.83  183.45  -51.19  115.89
   20.00  -65.36  198.45  -49.81  125.75
   21.00  -64.26  213.45  -49.47  136.02
   22.00  -62.87  228.45  -49.47  146.87
   23.00  -61.70  243.45  -50.15  158.24
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.93  258.45  -59.69  163.08
    1.00  -70.80  273.45  -62.83  171.70
    2.00  -71.74  288.45  -66.39  179.75
    3.00  -72.59  303.45  -70.21  187.40
    4.00  -74.68  318.45  -75.00  190.46
    5.00  -76.21  333.45  -79.23  191.51
    6.00  -75.99  348.45  -82.79  199.40
    7.00  -75.40    3.45  -86.54  215.16
    8.00  -76.28   18.45  -89.18   76.03
    9.00  -76.21   33.45  -85.31   48.34
   10.00  -76.18   48.45  -81.30   52.67
   11.00  -75.95   63.45  -77.31   57.97
   12.00  -75.64   78.45  -73.46   64.06
   13.00  -75.56   93.45  -70.05   71.38
   14.00  -75.59  108.45  -67.15   78.99
   15.00  -75.13  123.45  -64.32   85.84
   16.00  -75.02  138.45  -62.30   93.47
   17.00  -73.61  153.45  -59.49  100.27
   18.00  -73.35  168.45  -58.27  108.55
   19.00  -73.91  183.45  -58.33  117.15
   20.00  -73.28  198.45  -57.68  125.50
   21.00  -71.41  213.45  -56.37  134.48
   22.00  -70.89  228.45  -56.98  143.67
   23.00  -69.80  243.45  -57.56  153.61
</PRE>


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