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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>
11 Sep 1997 13:33:52 yearsecs  21908032
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.10  230.10  -45.07  149.66
    1.00  -58.60  245.10  -47.43  160.95
    2.00  -59.10  260.10  -50.17  172.36
    3.00  -59.61  275.10  -53.21  183.97
    4.00  -59.39  290.10  -55.90  196.48
    5.00  -60.28  305.10  -60.04  208.42
    6.00  -61.87  320.10  -65.23  220.33
    7.00  -63.08  335.10  -70.09  234.77
    8.00  -63.03  350.10  -73.40  255.59
    9.00  -62.48    5.10  -75.05  283.92
   10.00  -62.06   20.10  -74.42  316.00
   11.00  -61.87   35.10  -71.44  343.37
   12.00  -61.91   50.10  -67.53    3.84
   13.00  -62.16   65.10  -63.82   20.42
   14.00  -62.65   80.10  -60.66   35.41
   15.00  -63.35   95.10  -58.02   49.65
   16.00  -64.29  110.10  -55.89   63.10
   17.00  -65.44  125.10  -54.47   75.51
   18.00  -65.56  140.10  -52.61   86.11
   19.00  -64.50  155.10  -50.15   95.87
   20.00  -62.87  170.10  -47.61  105.82
   21.00  -61.71  185.10  -46.04  116.29
   22.00  -59.99  200.10  -44.58  127.02
   23.00  -58.87  215.10  -44.39  138.17
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.25  230.10  -59.34  143.41
    1.00  -74.03  245.10  -61.58  151.28
    2.00  -74.89  260.10  -64.23  158.58
    3.00  -75.47  275.10  -66.95  165.63
    4.00  -76.64  290.10  -70.38  170.59
    5.00  -77.78  305.10  -73.86  173.74
    6.00  -78.03  320.10  -76.93  177.94
    7.00  -77.55  335.10  -79.98  184.46
    8.00  -77.51  350.10  -83.35  186.24
    9.00  -77.61    5.10  -86.63  173.92
   10.00  -77.20   20.10  -88.17   92.48
   11.00  -76.83   35.10  -84.89   56.23
   12.00  -76.54   50.10  -80.97   55.85
   13.00  -76.36   65.10  -77.10   60.65
   14.00  -76.25   80.10  -73.46   66.94
   15.00  -75.91   95.10  -69.98   73.11
   16.00  -75.99  110.10  -67.21   80.62
   17.00  -75.63  125.10  -64.55   87.43
   18.00  -75.31  140.10  -62.40   94.65
   19.00  -74.94  155.10  -60.68  102.17
   20.00  -74.61  170.10  -59.46  110.04
   21.00  -73.70  185.10  -58.09  118.03
   22.00  -73.76  200.10  -58.20  126.40
   23.00  -72.94  215.10  -57.96  135.00
</PRE>


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