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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>
06 May 1997 10:49:54 yearsecs  10838994
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.64  268.80  -53.96  177.44
    1.00  -62.23  283.80  -57.24  188.67
    2.00  -62.83  298.80  -60.94  200.10
    3.00  -63.42  313.80  -65.08  212.21
    4.00  -62.87  328.80  -68.35  227.88
    5.00  -64.08  343.80  -73.07  244.35
    6.00  -64.72  358.80  -76.63  268.18
    7.00  -65.00   13.80  -78.15  301.40
    8.00  -65.51   28.80  -77.17  335.99
    9.00  -64.87   43.80  -72.89    0.31
   10.00  -64.45   58.80  -68.30   17.70
   11.00  -64.26   73.80  -64.11   32.20
   12.00  -64.30   88.80  -60.50   45.62
   13.00  -64.56  103.80  -57.45   58.43
   14.00  -65.04  118.80  -55.08   70.53
   15.00  -65.74  133.80  -53.55   81.89
   16.00  -66.68  148.80  -52.88   92.75
   17.00  -66.85  163.80  -51.96  102.86
   18.00  -66.48  178.80  -50.94  112.74
   19.00  -67.11  193.80  -51.45  122.69
   20.00  -65.74  208.80  -50.61  132.64
   21.00  -63.97  223.80  -50.05  143.24
   22.00  -63.15  238.80  -50.92  154.16
   23.00  -61.85  253.80  -51.75  165.86
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.77  268.80  -58.55  173.06
    1.00  -67.77  283.80  -62.15  182.52
    2.00  -68.76  298.80  -66.14  191.74
    3.00  -69.71  313.80  -70.44  201.06
    4.00  -72.62  328.80  -76.25  204.56
    5.00  -73.42  343.80  -80.55  213.63
    6.00  -73.69  358.80  -84.57  230.20
    7.00  -73.09   13.80  -87.00  290.84
    8.00  -74.32   28.80  -85.96   16.93
    9.00  -74.26   43.80  -81.75   35.91
   10.00  -74.36   58.80  -77.66   47.77
   11.00  -74.21   73.80  -73.63   56.59
   12.00  -73.91   88.80  -69.79   64.61
   13.00  -73.87  103.80  -66.55   73.11
   14.00  -74.03  118.80  -64.00   81.69
   15.00  -73.59  133.80  -61.45   89.35
   16.00  -73.51  148.80  -59.78   97.59
   17.00  -71.85  163.80  -57.00  105.13
   18.00  -71.48  178.80  -55.98  113.91
   19.00  -72.11  193.80  -56.45  122.85
   20.00  -71.30  208.80  -56.03  131.74
   21.00  -68.97  223.80  -54.76  141.59
   22.00  -68.15  238.80  -55.52  151.63
   23.00  -66.85  253.80  -56.29  162.55
</PRE>


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