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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
31 Mar 1997 23:11:24 yearsecs   7773084
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.41   83.99  -62.86   43.27
    1.00  -64.79   98.99  -58.73   54.87
    2.00  -65.83  113.99  -56.76   67.83
    3.00  -66.87  128.99  -55.36   79.55
    4.00  -66.64  143.99  -53.30   89.50
    5.00  -67.48  158.99  -52.90   99.96
    6.00  -67.52  173.99  -52.15  109.83
    7.00  -67.45  188.99  -51.77  119.59
    8.00  -68.17  203.99  -52.76  129.22
    9.00  -67.95  218.99  -53.40  138.86
   10.00  -67.63  233.99  -54.49  148.74
   11.00  -67.43  248.99  -56.15  158.86
   12.00  -67.47  263.99  -58.38  169.06
   13.00  -67.73  278.99  -61.19  179.20
   14.00  -68.21  293.99  -64.62  189.17
   15.00  -68.91  308.99  -68.64  199.01
   16.00  -69.79  323.99  -73.05  209.17
   17.00  -70.57  338.99  -77.45  221.34
   18.00  -70.40  353.99  -81.02  242.82
   19.00  -69.86    8.99  -83.21  281.90
   20.00  -68.88   23.99  -81.77  329.74
   21.00  -67.93   38.99  -77.60  359.60
   22.00  -67.05   53.99  -72.58   17.72
   23.00  -66.22   68.99  -67.58   31.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.56   83.99  -68.95   55.68
    1.00  -72.58   98.99  -66.39   67.73
    2.00  -73.51  113.99  -64.32   78.21
    3.00  -77.80  128.99  -66.03   92.65
    4.00  -79.87  143.99  -66.40  102.09
    5.00  -80.21  158.99  -65.66  108.55
    6.00  -79.58  173.99  -64.35  114.40
    7.00  -78.98  188.99  -63.45  120.85
    8.00  -79.32  203.99  -63.92  127.57
    9.00  -79.18  218.99  -64.32  134.30
   10.00  -79.25  233.99  -65.33  140.86
   11.00  -79.02  248.99  -66.46  147.66
   12.00  -79.14  263.99  -68.25  153.84
   13.00  -78.88  278.99  -70.10  160.46
   14.00  -78.82  293.99  -72.43  166.32
   15.00  -78.53  308.99  -74.95  172.44
   16.00  -78.66  323.99  -77.90  175.98
   17.00  -78.38  338.99  -80.93  179.68
   18.00  -78.82  353.99  -83.92  172.23
   19.00  -78.53    8.99  -86.60  151.34
   20.00  -77.57   23.99  -87.23   82.16
   21.00  -75.71   38.99  -83.71   44.56
   22.00  -73.71   53.99  -78.57   41.16
   23.00  -72.25   68.99  -73.39   46.79
</PRE>


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