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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 Oct 1997 18:32:32 yearsecs  25554752
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.54  150.10  -48.53   91.35
    1.00  -63.80  165.10  -48.79  102.58
    2.00  -64.63  180.10  -49.05  113.24
    3.00  -67.80  195.10  -52.16  123.55
    4.00  -67.38  210.10  -52.26  133.24
    5.00  -68.00  225.10  -53.96  142.78
    6.00  -67.90  240.10  -55.44  152.63
    7.00  -68.25  255.10  -57.72  162.35
    8.00  -69.30  270.10  -60.98  171.33
    9.00  -69.62  285.10  -63.98  180.91
   10.00  -69.31  300.10  -66.89  191.74
   11.00  -69.03  315.10  -70.23  203.54
   12.00  -69.01  330.10  -73.99  216.86
   13.00  -69.22  345.10  -77.94  233.53
   14.00  -69.66    0.10  -81.68  258.34
   15.00  -70.34   15.10  -84.05  302.14
   16.00  -71.00   30.10  -82.89  352.75
   17.00  -70.85   45.10  -78.86   18.61
   18.00  -71.27   60.10  -75.00   36.23
   19.00  -70.61   75.10  -70.36   46.75
   20.00  -69.78   90.10  -65.83   56.17
   21.00  -69.00  105.10  -61.73   65.57
   22.00  -66.24  120.10  -56.11   72.73
   23.00  -64.14  135.10  -51.73   81.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.54  150.10  -53.65   94.14
    1.00  -68.80  165.10  -53.85  104.52
    2.00  -69.63  180.10  -54.07  114.26
    3.00  -76.06  195.10  -60.45  123.62
    4.00  -78.24  210.10  -63.00  130.66
    5.00  -78.65  225.10  -64.14  137.39
    6.00  -77.76  240.10  -64.45  145.13
    7.00  -76.42  255.10  -64.89  153.99
    8.00  -76.38  270.10  -66.90  161.52
    9.00  -76.25  285.10  -69.22  169.12
   10.00  -76.16  300.10  -71.95  176.52
   11.00  -76.29  315.10  -75.13  183.07
   12.00  -76.60  330.10  -78.59  188.14
   13.00  -76.48  345.10  -82.08  194.31
   14.00  -76.32    0.10  -85.78  198.98
   15.00  -76.17   15.10  -89.51  157.34
   16.00  -76.02   30.10  -86.20   44.81
   17.00  -75.85   45.10  -82.09   48.76
   18.00  -77.20   60.10  -78.66   63.07
   19.00  -77.58   75.10  -75.33   69.89
   20.00  -76.70   90.10  -71.58   72.95
   21.00  -74.60  105.10  -66.93   75.27
   22.00  -71.24  120.10  -61.13   78.52
   23.00  -69.14  135.10  -56.86   85.63
</PRE>


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