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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 Mar 1997 21:27:25 yearsecs   7075645
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.45  110.73  -56.99   64.94
    1.00  -64.86  125.73  -53.77   75.43
    2.00  -65.89  140.73  -52.87   86.77
    3.00  -66.91  155.73  -52.55   97.51
    4.00  -66.67  170.73  -51.42  107.41
    5.00  -67.50  185.73  -51.84  117.48
    6.00  -67.53  200.73  -52.01  127.17
    7.00  -67.47  215.73  -52.71  136.87
    8.00  -68.21  230.73  -54.69  146.34
    9.00  -68.05  245.73  -56.27  156.26
   10.00  -67.69  260.73  -58.06  166.62
   11.00  -67.50  275.73  -60.39  177.18
   12.00  -67.53  290.73  -63.35  187.79
   13.00  -67.79  305.73  -66.93  198.55
   14.00  -68.27  320.73  -71.03  209.90
   15.00  -68.98  335.73  -75.40  222.79
   16.00  -69.85  350.73  -79.81  239.59
   17.00  -70.60    5.73  -83.54  269.21
   18.00  -70.45   20.73  -83.88  322.66
   19.00  -69.90   35.73  -80.47    0.07
   20.00  -68.93   50.73  -75.46   18.88
   21.00  -67.98   65.73  -70.33   32.08
   22.00  -67.12   80.73  -65.49   43.55
   23.00  -66.28   95.73  -61.03   54.41
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.83  110.73  -63.34   73.60
    1.00  -72.85  125.73  -61.81   83.91
    2.00  -73.76  140.73  -60.82   93.35
    3.00  -78.04  155.73  -63.72  105.08
    4.00  -80.07  170.73  -64.96  113.29
    5.00  -80.41  185.73  -64.94  119.71
    6.00  -79.80  200.73  -64.35  126.05
    7.00  -79.20  215.73  -64.18  132.83
    8.00  -79.54  230.73  -65.36  139.18
    9.00  -79.34  245.73  -66.41  145.84
   10.00  -79.47  260.73  -68.11  151.91
   11.00  -79.29  275.73  -69.91  158.23
   12.00  -79.35  290.73  -72.19  163.61
   13.00  -79.10  305.73  -74.60  169.34
   14.00  -79.02  320.73  -77.35  173.56
   15.00  -78.74  335.73  -80.27  177.23
   16.00  -78.85  350.73  -83.28  173.92
   17.00  -78.57    5.73  -86.13  159.51
   18.00  -79.02   20.73  -86.34  109.17
   19.00  -78.75   35.73  -84.29   77.78
   20.00  -77.80   50.73  -81.06   64.93
   21.00  -75.97   65.73  -76.75   59.14
   22.00  -73.97   80.73  -71.73   59.98
   23.00  -72.52   95.73  -67.05   65.58
</PRE>


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