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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>
15 Jul 1997 13:31:54 yearsecs  16896714
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.35  235.70  -44.98  154.22
    1.00  -57.56  250.70  -47.24  165.81
    2.00  -57.75  265.70  -49.83  177.66
    3.00  -57.91  280.70  -52.67  189.88
    4.00  -58.04  295.70  -55.80  202.51
    5.00  -58.54  310.70  -59.72  215.39
    6.00  -60.20  325.70  -65.04  228.29
    7.00  -60.83  340.70  -69.23  245.20
    8.00  -61.16  355.70  -72.52  267.54
    9.00  -60.92   10.70  -73.61  296.71
   10.00  -60.83   25.70  -72.15  326.63
   11.00  -60.90   40.70  -68.78  350.63
   12.00  -61.14   55.70  -65.01    9.17
   13.00  -61.57   70.70  -61.65   25.02
   14.00  -62.19   85.70  -58.81   39.81
   15.00  -63.01  100.70  -56.44   53.93
   16.00  -64.02  115.70  -54.57   67.16
   17.00  -65.24  130.70  -53.44   79.31
   18.00  -65.54  145.70  -52.01   89.95
   19.00  -64.25  160.70  -49.51   99.67
   20.00  -62.63  175.70  -47.16  109.75
   21.00  -61.40  190.70  -45.74  120.27
   22.00  -59.52  205.70  -44.38  131.14
   23.00  -58.35  220.70  -44.36  142.48
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.92  235.70  -56.79  148.65
    1.00  -70.81  250.70  -59.39  157.40
    2.00  -71.65  265.70  -62.28  165.83
    3.00  -72.04  280.70  -65.16  174.47
    4.00  -72.72  295.70  -68.64  182.35
    5.00  -74.00  310.70  -72.81  188.19
    6.00  -74.22  325.70  -76.45  196.43
    7.00  -73.12  340.70  -79.58  212.36
    8.00  -73.13  355.70  -83.45  229.81
    9.00  -73.65   10.70  -87.21  267.98
   10.00  -73.22   25.70  -85.92  355.18
   11.00  -72.97   40.70  -81.81   23.78
   12.00  -72.85   55.70  -77.49   38.53
   13.00  -72.76   70.70  -73.34   49.70
   14.00  -72.86   85.70  -69.65   60.04
   15.00  -72.76  100.70  -66.19   69.12
   16.00  -73.21  115.70  -63.75   78.70
   17.00  -73.51  130.70  -61.76   87.53
   18.00  -73.15  145.70  -59.71   95.55
   19.00  -72.21  160.70  -57.55  103.50
   20.00  -71.80  175.70  -56.39  112.16
   21.00  -70.90  190.70  -55.22  120.95
   22.00  -70.93  205.70  -55.53  129.95
   23.00  -69.88  220.70  -55.38  139.33
</PRE>


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