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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>
17 Apr 1997 13:00:47 yearsecs   9205247
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.91  239.17  -46.94  156.27
    1.00  -59.50  254.17  -49.62  167.50
    2.00  -60.09  269.17  -52.61  178.87
    3.00  -60.68  284.17  -55.89  190.42
    4.00  -60.12  299.17  -58.52  203.44
    5.00  -61.06  314.17  -62.99  215.70
    6.00  -62.43  329.17  -68.03  228.97
    7.00  -63.37  344.17  -72.48  246.11
    8.00  -63.51  359.17  -75.46  270.80
    9.00  -62.98   14.17  -75.88  303.14
   10.00  -62.57   29.17  -73.61  333.92
   11.00  -62.38   44.17  -69.75  357.06
   12.00  -62.42   59.17  -65.71   14.72
   13.00  -62.68   74.17  -62.14   29.97
   14.00  -63.16   89.17  -59.13   44.26
   15.00  -63.87  104.17  -56.64   57.87
   16.00  -64.80  119.17  -54.77   70.57
   17.00  -65.96  134.17  -53.72   82.32
   18.00  -66.01  149.17  -52.17   92.60
   19.00  -65.14  164.17  -50.21  102.43
   20.00  -63.53  179.17  -47.97  112.39
   21.00  -62.39  194.17  -46.78  122.78
   22.00  -60.75  209.17  -45.79  133.54
   23.00  -59.61  224.17  -45.92  144.75
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.09  239.17  -59.16  149.41
    1.00  -72.80  254.17  -61.61  157.65
    2.00  -73.67  269.17  -64.54  165.26
    3.00  -74.29  284.17  -67.59  172.61
    4.00  -75.79  299.17  -71.53  177.08
    5.00  -76.94  314.17  -75.25  180.30
    6.00  -76.99  329.17  -78.51  185.82
    7.00  -76.39  344.17  -81.84  194.61
    8.00  -76.72  359.17  -85.54  193.55
    9.00  -76.82   14.17  -88.78  148.05
   10.00  -76.51   29.17  -86.45   53.32
   11.00  -76.17   44.17  -82.43   50.94
   12.00  -75.89   59.17  -78.38   55.65
   13.00  -75.77   74.17  -74.56   62.40
   14.00  -75.66   89.17  -71.04   69.50
   15.00  -75.26  104.17  -67.67   76.15
   16.00  -75.27  119.17  -65.09   83.86
   17.00  -74.60  134.17  -62.38   90.73
   18.00  -74.35  149.17  -60.58   98.51
   19.00  -74.34  164.17  -59.49  106.67
   20.00  -73.92  179.17  -58.44  114.77
   21.00  -72.75  194.17  -57.09  123.08
   22.00  -72.71  209.17  -57.43  131.68
   23.00  -71.74  224.17  -57.41  140.72
</PRE>


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