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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>
09 Oct 1997 00:56:46 yearsecs  24281806
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.81   55.35  -63.34    7.07
    1.00  -60.49   70.35  -60.35   23.15
    2.00  -61.17   85.35  -57.67   38.06
    3.00  -61.85  100.35  -55.22   52.19
    4.00  -60.92  115.35  -51.32   63.79
    5.00  -61.93  130.35  -50.03   76.45
    6.00  -63.05  145.35  -49.48   88.20
    7.00  -63.72  160.35  -48.99   99.20
    8.00  -64.19  175.35  -48.74  109.87
    9.00  -63.59  190.35  -47.92  120.18
   10.00  -63.14  205.35  -47.90  130.58
   11.00  -62.95  220.35  -48.76  141.10
   12.00  -62.98  235.35  -50.34  151.75
   13.00  -63.24  250.35  -52.53  162.48
   14.00  -63.72  265.35  -55.27  173.20
   15.00  -64.43  280.35  -58.55  183.81
   16.00  -65.36  295.35  -62.45  194.17
   17.00  -66.52  310.35  -66.97  204.40
   18.00  -66.49  325.35  -70.72  217.90
   19.00  -65.84  340.35  -73.89  236.18
   20.00  -64.26  355.35  -75.60  262.47
   21.00  -63.14   10.35  -76.06  294.58
   22.00  -61.58   25.35  -73.11  326.26
   23.00  -60.43   40.35  -68.27  349.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.06   55.35  -76.16   31.01
    1.00  -71.68   70.35  -72.55   46.04
    2.00  -72.56   85.35  -69.48   59.03
    3.00  -73.24  100.35  -66.69   69.86
    4.00  -75.13  115.35  -65.57   81.66
    5.00  -76.27  130.35  -64.45   90.96
    6.00  -76.27  145.35  -62.82   98.35
    7.00  -75.66  160.35  -61.05  105.46
    8.00  -76.15  175.35  -60.81  113.47
    9.00  -76.26  190.35  -60.66  121.19
   10.00  -76.06  205.35  -60.64  128.90
   11.00  -75.73  220.35  -61.00  136.77
   12.00  -75.46  235.35  -61.89  144.80
   13.00  -75.40  250.35  -63.42  152.77
   14.00  -75.27  265.35  -65.29  160.86
   15.00  -74.79  280.35  -67.30  169.62
   16.00  -74.69  295.35  -70.02  177.85
   17.00  -73.64  310.35  -72.49  188.98
   18.00  -73.47  325.35  -75.93  198.99
   19.00  -73.86  340.35  -79.90  208.25
   20.00  -73.36  355.35  -83.50  227.48
   21.00  -71.90   10.35  -85.46  279.40
   22.00  -71.75   25.35  -84.61  343.19
   23.00  -70.63   40.35  -79.97   10.93
</PRE>


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