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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>
18 Oct 1997 14:29:10 yearsecs  25108150
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.88  210.00  -50.81  133.42
    1.00  -66.43  225.00  -52.47  143.27
    2.00  -67.16  240.00  -54.75  152.97
    3.00  -67.89  255.00  -57.39  162.57
    4.00  -67.43  270.00  -59.33  173.25
    5.00  -68.00  285.00  -62.58  183.08
    6.00  -67.83  300.00  -65.63  194.14
    7.00  -68.08  315.00  -69.43  205.40
    8.00  -69.08  330.00  -74.03  216.56
    9.00  -69.42  345.00  -78.07  232.71
   10.00  -69.24    0.01  -81.27  259.67
   11.00  -69.03   15.00  -82.61  302.58
   12.00  -69.05   30.00  -80.90  345.31
   13.00  -69.30   45.00  -77.43   12.73
   14.00  -69.78   60.00  -73.69   31.35
   15.00  -70.48   75.00  -70.27   46.31
   16.00  -71.15   90.00  -67.13   58.90
   17.00  -71.28  105.00  -63.95   69.12
   18.00  -71.44  120.00  -61.33   78.71
   19.00  -70.80  135.00  -58.54   87.11
   20.00  -69.99  150.00  -56.14   95.66
   21.00  -69.20  165.00  -54.27  104.63
   22.00  -68.57  180.00  -53.01  113.97
   23.00  -67.24  195.00  -51.60  123.47
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.88  210.00  -55.67  132.54
    1.00  -71.99  225.00  -57.72  141.09
    2.00  -72.74  240.00  -59.84  149.43
    3.00  -78.22  255.00  -66.42  151.46
    4.00  -80.10  270.00  -69.72  154.25
    5.00  -80.48  285.00  -71.98  158.44
    6.00  -79.77  300.00  -73.91  165.25
    7.00  -78.70  315.00  -76.15  173.59
    8.00  -78.71  330.00  -79.11  176.85
    9.00  -78.74  345.00  -82.16  176.64
   10.00  -78.55    0.01  -85.17  169.43
   11.00  -78.65   15.00  -86.91  128.90
   12.00  -78.94   30.00  -85.24   86.80
   13.00  -78.79   45.00  -82.34   73.01
   14.00  -78.62   60.00  -79.04   71.17
   15.00  -78.46   75.00  -75.75   73.57
   16.00  -78.30   90.00  -72.63   77.85
   17.00  -78.12  105.00  -69.80   83.10
   18.00  -79.22  120.00  -68.41   91.51
   19.00  -79.51  135.00  -66.91   97.94
   20.00  -78.75  150.00  -64.83  103.21
   21.00  -76.92  165.00  -62.04  108.65
   22.00  -74.05  180.00  -58.54  115.27
   23.00  -72.24  195.00  -56.59  123.55
</PRE>


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