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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>
14 May 1997 22:39:35 yearsecs  11572775
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.14   87.20  -60.70   44.01
    1.00  -64.21  102.20  -57.42   56.71
    2.00  -64.97  117.20  -55.29   69.28
    3.00  -65.72  132.20  -53.74   80.77
    4.00  -65.50  147.20  -51.83   90.95
    5.00  -66.65  162.20  -51.85  101.71
    6.00  -66.89  177.20  -51.40  111.77
    7.00  -66.68  192.20  -51.01  121.63
    8.00  -66.56  207.20  -51.32  131.47
    9.00  -66.90  222.20  -52.67  141.26
   10.00  -67.58  237.20  -54.81  150.89
   11.00  -66.99  252.20  -56.19  161.35
   12.00  -66.85  267.20  -58.36  171.86
   13.00  -66.98  282.20  -61.15  182.36
   14.00  -67.36  297.20  -64.60  192.79
   15.00  -67.97  312.20  -68.65  203.33
   16.00  -68.82  327.20  -73.11  214.53
   17.00  -69.82  342.20  -77.70  227.69
   18.00  -69.72  357.20  -81.15  251.84
   19.00  -69.07   12.20  -82.59  293.67
   20.00  -67.85   27.20  -80.12  336.00
   21.00  -66.77   42.20  -75.49    1.78
   22.00  -65.65   57.20  -70.13   18.26
   23.00  -64.65   72.20  -64.97   31.38
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.56   87.20  -66.32   53.59
    1.00  -70.76  102.20  -64.04   66.41
    2.00  -71.82  117.20  -62.17   77.54
    3.00  -74.19  132.20  -62.23   89.18
    4.00  -76.96  147.20  -63.32   99.99
    5.00  -77.77  162.20  -63.05  107.89
    6.00  -77.05  177.20  -61.67  114.75
    7.00  -76.36  192.20  -60.76  122.14
    8.00  -77.23  207.20  -61.88  129.57
    9.00  -76.86  222.20  -62.22  137.13
   10.00  -76.90  237.20  -63.40  144.55
   11.00  -76.69  252.20  -64.77  152.20
   12.00  -76.50  267.20  -66.57  159.89
   13.00  -76.31  282.20  -68.77  167.58
   14.00  -76.45  297.20  -71.57  174.38
   15.00  -76.07  312.20  -74.38  182.52
   16.00  -76.07  327.20  -77.72  189.43
   17.00  -74.87  342.20  -80.85  203.86
   18.00  -74.86  357.20  -84.72  215.95
   19.00  -75.24   12.20  -88.77  241.43
   20.00  -74.45   27.20  -86.46   15.23
   21.00  -72.31   42.20  -80.90   21.84
   22.00  -71.06   57.20  -75.64   32.82
   23.00  -69.90   72.20  -70.47   42.58
</PRE>


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