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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>
28 Jul 1997 12:34:08 yearsecs  18016448
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.73  247.64  -52.60  160.23
    1.00  -64.84  262.64  -55.83  170.34
    2.00  -65.82  277.64  -59.27  180.36
    3.00  -66.92  292.64  -63.22  190.04
    4.00  -66.66  307.64  -66.43  201.94
    5.00  -67.49  322.64  -70.87  213.29
    6.00  -67.52  337.64  -74.69  228.89
    7.00  -67.50  352.64  -78.18  250.55
    8.00  -68.17    7.64  -81.31  281.92
    9.00  -68.04   22.64  -81.01  324.78
   10.00  -67.69   37.64  -77.69  356.72
   11.00  -67.51   52.64  -73.45   17.26
   12.00  -67.55   67.64  -69.36   32.87
   13.00  -67.81   82.64  -65.72   46.50
   14.00  -68.30   97.64  -62.64   59.08
   15.00  -69.01  112.64  -60.24   70.78
   16.00  -69.87  127.64  -58.60   81.61
   17.00  -70.60  142.64  -57.46   91.59
   18.00  -70.46  157.64  -56.01  100.67
   19.00  -69.91  172.64  -54.61  109.70
   20.00  -68.95  187.64  -53.28  118.88
   21.00  -68.01  202.64  -52.55  128.37
   22.00  -66.42  217.64  -51.84  138.38
   23.00  -64.65  232.64  -51.59  149.15
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.73  247.64  -57.13  157.05
    1.00  -69.84  262.64  -60.24  165.87
    2.00  -70.82  277.64  -63.58  174.35
    3.00  -75.83  292.64  -70.29  173.77
    4.00  -78.17  307.64  -74.53  173.32
    5.00  -78.37  322.64  -77.55  177.11
    6.00  -77.89  337.64  -80.59  182.81
    7.00  -77.23  352.64  -83.95  188.73
    8.00  -77.67    7.64  -87.08  166.84
    9.00  -77.50   22.64  -87.52   85.75
   10.00  -77.69   37.64  -84.18   65.38
   11.00  -77.49   52.64  -80.55   62.98
   12.00  -77.66   67.64  -77.05   67.79
   13.00  -77.41   82.64  -73.60   72.10
   14.00  -77.37   97.64  -70.55   78.10
   15.00  -77.08  112.64  -67.71   84.02
   16.00  -77.23  127.64  -65.68   91.13
   17.00  -76.94  142.64  -63.73   97.78
   18.00  -77.46  157.64  -63.01  105.47
   19.00  -77.12  172.64  -61.90  112.53
   20.00  -76.00  187.64  -60.40  119.76
   21.00  -73.83  202.64  -58.33  127.80
   22.00  -71.42  217.64  -56.63  136.96
   23.00  -69.65  232.64  -56.22  146.87
</PRE>


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