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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>
10 May 1997 23:28:23 yearsecs  11230103
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.73   75.52  -61.87   31.32
    1.00  -63.94   90.52  -59.70   46.57
    2.00  -65.03  105.52  -57.59   60.41
    3.00  -66.03  120.52  -55.82   72.81
    4.00  -65.83  135.52  -53.42   83.15
    5.00  -66.91  150.52  -52.97   94.04
    6.00  -67.09  165.52  -52.11  104.10
    7.00  -66.84  180.52  -51.26  113.96
    8.00  -67.06  195.52  -51.43  123.81
    9.00  -67.53  210.52  -52.44  133.49
   10.00  -67.67  225.52  -53.69  143.18
   11.00  -67.07  240.52  -54.73  153.38
   12.00  -66.98  255.52  -56.66  163.64
   13.00  -67.14  270.52  -59.17  173.90
   14.00  -67.55  285.52  -62.30  184.04
   15.00  -68.18  300.52  -66.05  193.96
   16.00  -69.04  315.52  -70.34  203.86
   17.00  -69.30  330.52  -74.33  216.48
   18.00  -69.43  345.52  -78.21  233.41
   19.00  -69.26    0.52  -81.39  260.79
   20.00  -68.10   15.52  -81.57  304.60
   21.00  -66.33   30.52  -77.77  340.63
   22.00  -64.68   45.52  -72.19    2.33
   23.00  -63.24   60.52  -66.37   17.45
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.73   75.52  -67.46   40.35
    1.00  -68.94   90.52  -64.92   54.87
    2.00  -70.03  105.52  -62.64   67.44
    3.00  -73.19  120.52  -62.93   81.41
    4.00  -76.05  135.52  -63.62   93.22
    5.00  -76.74  150.52  -62.83  101.38
    6.00  -75.85  165.52  -60.93  108.26
    7.00  -75.41  180.52  -59.91  115.92
    8.00  -75.86  195.52  -60.26  123.84
    9.00  -75.66  210.52  -60.43  131.68
   10.00  -75.91  225.52  -61.51  139.37
   11.00  -75.70  240.52  -62.61  147.32
   12.00  -75.62  255.52  -64.25  155.22
   13.00  -75.42  270.52  -66.20  163.33
   14.00  -75.57  285.52  -68.80  170.79
   15.00  -75.20  300.52  -71.41  179.33
   16.00  -75.31  315.52  -74.69  186.73
   17.00  -74.30  330.52  -77.67  199.15
   18.00  -74.43  345.52  -81.50  209.11
   19.00  -74.62    0.52  -85.49  222.95
   20.00  -73.66   15.52  -87.68  300.72
   21.00  -71.33   30.52  -83.11  355.42
   22.00  -69.68   45.52  -77.65   14.71
   23.00  -68.24   60.52  -72.03   27.65
</PRE>


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