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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>
27 Oct 1997 22:45:28 yearsecs  25915528
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.69   88.46  -52.67   36.59
    1.00  -57.78  103.46  -49.92   50.41
    2.00  -57.79  118.46  -47.37   63.64
    3.00  -57.74  133.46  -45.19   76.01
    4.00  -57.59  148.46  -43.51   87.72
    5.00  -57.73  163.46  -42.67   99.33
    6.00  -58.93  178.46  -43.34  111.00
    7.00  -59.76  193.46  -44.16  122.18
    8.00  -60.92  208.46  -45.91  133.01
    9.00  -60.91  223.46  -47.10  143.88
   10.00  -60.99  238.46  -48.84  154.87
   11.00  -61.20  253.46  -51.10  166.00
   12.00  -61.55  268.46  -53.82  177.24
   13.00  -62.06  283.46  -57.02  188.57
   14.00  -62.74  298.46  -60.79  199.92
   15.00  -63.60  313.46  -65.16  211.64
   16.00  -64.64  328.46  -69.88  224.59
   17.00  -65.86  343.46  -74.65  240.32
   18.00  -66.19  358.46  -78.06  264.71
   19.00  -64.91   13.46  -78.05  300.64
   20.00  -63.22   28.46  -74.54  333.10
   21.00  -61.95   43.46  -69.40  355.57
   22.00  -60.04   58.46  -62.81   10.66
   23.00  -58.80   73.46  -57.36   23.92
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.62   88.46  -68.79   61.21
    1.00  -73.44  103.46  -66.24   72.08
    2.00  -74.22  118.46  -64.23   81.80
    3.00  -74.61  133.46  -62.48   90.36
    4.00  -75.25  148.46  -61.54   98.94
    5.00  -76.17  163.46  -61.37  107.40
    6.00  -76.69  178.46  -61.27  115.25
    7.00  -75.83  193.46  -60.22  122.77
    8.00  -75.86  208.46  -60.55  130.55
    9.00  -76.22  223.46  -61.67  138.13
   10.00  -75.79  238.46  -62.49  146.16
   11.00  -75.51  253.46  -63.90  154.28
   12.00  -75.35  268.46  -65.82  162.37
   13.00  -75.21  283.46  -68.17  170.45
   14.00  -75.25  298.46  -71.03  178.14
   15.00  -75.11  313.46  -74.12  186.32
   16.00  -75.45  328.46  -77.74  192.87
   17.00  -75.67  343.46  -81.46  199.46
   18.00  -75.30  358.46  -85.19  212.08
   19.00  -74.41   13.46  -88.33  276.96
   20.00  -74.07   28.46  -85.90   12.95
   21.00  -73.33   43.46  -81.28   29.37
   22.00  -73.40   58.46  -77.12   43.16
   23.00  -72.54   73.46  -72.44   50.95
</PRE>


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