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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>
30 Jul 1997 20:34:00 yearsecs  18218040
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.85  120.46  -55.64   72.58
    1.00  -66.33  135.46  -53.94   83.51
    2.00  -67.09  150.46  -53.16   94.11
    3.00  -67.84  165.46  -52.87  104.36
    4.00  -67.41  180.46  -51.83  114.03
    5.00  -68.01  195.46  -52.37  123.79
    6.00  -67.88  210.46  -52.77  133.39
    7.00  -68.18  225.46  -54.16  142.95
    8.00  -69.23  240.46  -56.69  152.08
    9.00  -69.57  255.46  -58.95  161.48
   10.00  -69.45  270.46  -61.17  171.40
   11.00  -69.18  285.46  -63.68  181.79
   12.00  -69.14  300.46  -66.83  192.29
   13.00  -69.34  315.46  -70.57  203.16
   14.00  -69.78  330.46  -74.69  215.09
   15.00  -70.46  345.46  -79.00  229.53
   16.00  -71.10    0.46  -83.04  252.65
   17.00  -71.22   15.46  -85.01  302.98
   18.00  -71.36   30.46  -83.16  355.44
   19.00  -70.71   45.46  -78.64   18.51
   20.00  -69.88   60.46  -73.65   32.11
   21.00  -69.08   75.46  -68.82   43.27
   22.00  -68.44   90.46  -64.44   53.89
   23.00  -67.19  105.46  -59.84   63.22
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.85  120.46  -60.68   78.24
    1.00  -71.99  135.46  -59.67   88.57
    2.00  -72.77  150.46  -58.89   97.94
    3.00  -78.26  165.46  -63.36  109.76
    4.00  -80.15  180.46  -64.76  117.43
    5.00  -80.55  195.46  -65.06  123.77
    6.00  -79.86  210.46  -64.64  130.23
    7.00  -78.83  225.46  -64.34  137.42
    8.00  -78.89  240.46  -65.53  144.09
    9.00  -78.87  255.46  -67.02  150.68
   10.00  -78.63  270.46  -68.70  157.53
   11.00  -78.69  285.46  -70.95  163.49
   12.00  -78.92  300.46  -73.59  168.28
   13.00  -78.74  315.46  -76.26  173.53
   14.00  -78.57  330.46  -79.18  177.68
   15.00  -78.39  345.46  -82.29  179.31
   16.00  -78.22    0.46  -85.42  172.75
   17.00  -78.03   15.46  -87.58  128.01
   18.00  -79.13   30.46  -85.04   87.89
   19.00  -79.41   45.46  -82.11   77.82
   20.00  -78.63   60.46  -78.94   71.23
   21.00  -76.81   75.46  -74.85   66.96
   22.00  -73.96   90.46  -69.44   65.69
   23.00  -72.19  105.46  -64.70   70.97
</PRE>


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