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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>
28 May 1997 23:11:59 yearsecs  12784319
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.08   78.98  -64.83   40.11
    1.00  -66.95   93.98  -62.12   54.08
    2.00  -67.69  108.98  -59.63   66.47
    3.00  -68.42  123.98  -57.69   77.70
    4.00  -67.98  138.98  -55.21   87.17
    5.00  -68.54  153.98  -54.34   97.26
    6.00  -68.35  168.98  -53.19  106.84
    7.00  -68.49  183.98  -52.85  116.50
    8.00  -68.95  198.98  -53.37  126.00
    9.00  -70.20  213.98  -55.22  135.11
   10.00  -70.71  228.98  -56.85  144.08
   11.00  -70.10  243.98  -57.90  153.74
   12.00  -69.97  258.98  -59.81  163.39
   13.00  -70.11  273.98  -62.34  172.92
   14.00  -70.49  288.98  -65.48  182.17
   15.00  -71.11  303.98  -69.21  190.99
   16.00  -71.71  318.98  -73.21  200.04
   17.00  -71.80  333.98  -77.04  211.84
   18.00  -71.92  348.98  -80.95  227.60
   19.00  -71.28    3.98  -83.89  260.84
   20.00  -70.45   18.98  -84.04  316.47
   21.00  -69.64   33.98  -80.63  355.75
   22.00  -68.99   48.98  -76.01   16.94
   23.00  -67.45   63.98  -70.25   29.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.08   78.98  -69.78   50.90
    1.00  -72.16   93.98  -67.12   63.71
    2.00  -72.87  108.98  -64.64   74.26
    3.00  -78.27  123.98  -67.08   91.28
    4.00  -80.10  138.98  -67.05  100.44
    5.00  -80.41  153.98  -66.16  106.75
    6.00  -79.56  168.98  -64.52  112.22
    7.00  -78.21  183.98  -62.71  118.39
    8.00  -78.30  198.98  -62.78  125.44
    9.00  -78.93  213.98  -63.84  132.18
   10.00  -79.15  228.98  -64.87  138.75
   11.00  -79.10  243.98  -66.03  145.39
   12.00  -79.36  258.98  -67.82  151.37
   13.00  -79.19  273.98  -69.60  157.78
   14.00  -79.02  288.98  -71.72  163.94
   15.00  -78.84  303.98  -74.17  169.70
   16.00  -78.67  318.98  -76.91  174.80
   17.00  -78.48  333.98  -79.89  178.67
   18.00  -79.53  348.98  -82.75  168.99
   19.00  -79.80    3.98  -84.92  151.34
   20.00  -79.00   18.98  -86.47  114.64
   21.00  -77.13   33.98  -85.15   60.40
   22.00  -74.24   48.98  -80.29   40.15
   23.00  -72.45   63.98  -74.90   43.66
</PRE>


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