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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>
03 May 1997 19:54:39 yearsecs  10612479
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.71  128.55  -47.93   73.42
    1.00  -60.38  143.55  -46.87   85.37
    2.00  -61.05  158.55  -46.37   96.82
    3.00  -61.72  173.55  -46.30  107.98
    4.00  -60.83  188.55  -45.16  118.67
    5.00  -61.84  203.55  -46.54  129.41
    6.00  -62.98  218.55  -48.64  139.83
    7.00  -63.68  233.55  -50.79  150.18
    8.00  -64.13  248.55  -53.09  160.65
    9.00  -63.53  263.55  -54.81  172.01
   10.00  -63.08  278.55  -57.00  183.76
   11.00  -62.89  293.55  -59.84  195.76
   12.00  -62.92  308.55  -63.33  208.23
   13.00  -63.18  323.55  -67.32  221.88
   14.00  -63.66  338.55  -71.46  238.06
   15.00  -64.37  353.55  -75.38  259.08
   16.00  -65.30    8.55  -78.33  288.54
   17.00  -66.46   23.55  -79.10  325.42
   18.00  -66.44   38.55  -76.06  355.39
   19.00  -65.76   53.55  -71.27   14.38
   20.00  -64.18   68.55  -65.37   27.08
   21.00  -63.06   83.55  -60.33   39.14
   22.00  -61.48   98.55  -55.18   50.20
   23.00  -60.34  113.55  -51.00   61.74
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.26  128.55  -61.81   86.03
    1.00  -73.88  143.55  -60.64   95.02
    2.00  -74.72  158.55  -60.22  103.86
    3.00  -75.39  173.55  -60.10  112.22
    4.00  -77.07  188.55  -61.49  120.37
    5.00  -78.13  203.55  -62.70  127.61
    6.00  -78.22  218.55  -63.34  134.63
    7.00  -77.79  233.55  -63.92  142.00
    8.00  -78.33  248.55  -65.80  148.39
    9.00  -78.50  263.55  -67.69  154.80
   10.00  -78.50  278.55  -69.76  161.17
   11.00  -78.06  293.55  -71.90  168.37
   12.00  -77.64  308.55  -74.45  175.54
   13.00  -77.47  323.55  -77.45  181.57
   14.00  -77.27  338.55  -80.70  186.97
   15.00  -76.79  353.55  -84.16  193.17
   16.00  -76.65    8.55  -87.82  185.67
   17.00  -75.70   23.55  -87.96   35.25
   18.00  -75.49   38.55  -83.76   42.09
   19.00  -75.73   53.55  -79.78   52.03
   20.00  -75.24   68.55  -75.63   57.44
   21.00  -73.94   83.55  -71.03   61.58
   22.00  -73.78   98.55  -67.54   69.94
   23.00  -72.83  113.55  -63.77   76.87
</PRE>


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