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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>
26 May 1997 23:36:32 yearsecs  12612992
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.78   73.08  -54.66   21.17
    1.00  -57.06   88.08  -51.91   35.52
    2.00  -57.32  103.08  -49.45   49.60
    3.00  -57.58  118.08  -47.19   63.13
    4.00  -57.82  133.08  -45.32   75.75
    5.00  -58.48  148.08  -44.47   87.84
    6.00  -60.34  163.08  -45.37   99.91
    7.00  -61.84  178.08  -46.29  111.28
    8.00  -60.89  193.08  -45.27  121.95
    9.00  -60.61  208.08  -45.59  132.77
   10.00  -60.50  223.08  -46.67  143.71
   11.00  -60.52  238.08  -48.35  154.79
   12.00  -60.72  253.08  -50.59  165.99
   13.00  -61.10  268.08  -53.35  177.28
   14.00  -61.69  283.08  -56.61  188.61
   15.00  -62.49  298.08  -60.48  199.91
   16.00  -63.49  313.08  -64.97  211.46
   17.00  -64.71  328.08  -69.85  224.07
   18.00  -64.99  343.08  -73.76  241.61
   19.00  -63.65  358.08  -75.44  268.52
   20.00  -62.01   13.08  -74.81  301.17
   21.00  -60.79   28.08  -71.65  330.89
   22.00  -58.90   43.08  -65.50  351.84
   23.00  -57.75   58.08  -59.75    7.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.53   73.08  -70.82   44.94
    1.00  -71.44   88.08  -67.85   58.24
    2.00  -72.30  103.08  -65.29   69.71
    3.00  -72.73  118.08  -62.89   79.36
    4.00  -73.44  133.08  -61.39   88.78
    5.00  -74.67  148.08  -60.99   98.20
    6.00  -75.20  163.08  -60.41  106.59
    7.00  -74.63  178.08  -59.19  114.39
    8.00  -74.36  193.08  -58.72  122.52
    9.00  -74.69  208.08  -59.36  130.63
   10.00  -74.18  223.08  -59.67  138.99
   11.00  -73.85  238.08  -60.66  147.51
   12.00  -73.66  253.08  -62.23  156.14
   13.00  -73.50  268.08  -64.23  164.87
   14.00  -73.54  283.08  -66.81  173.39
   15.00  -73.39  298.08  -69.63  182.36
   16.00  -73.77  313.08  -73.20  190.26
   17.00  -74.00  328.08  -76.91  198.81
   18.00  -73.58  343.08  -80.45  212.11
   19.00  -72.57  358.08  -83.66  238.23
   20.00  -72.19   13.08  -85.99  290.49
   21.00  -71.35   28.08  -83.66  349.25
   22.00  -71.42   43.08  -79.92   18.44
   23.00  -70.45   58.08  -74.84   31.59
</PRE>


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