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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 Aug 1997 16:57:28 yearsecs  19760248
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.75  179.80  -41.11  111.63
    1.00  -57.12  194.80  -41.57  123.08
    2.00  -57.48  209.80  -42.64  134.40
    3.00  -57.84  224.80  -44.26  145.70
    4.00  -58.20  239.80  -46.33  157.04
    5.00  -58.98  254.80  -49.22  168.28
    6.00  -60.95  269.80  -53.50  178.74
    7.00  -62.59  284.80  -57.76  189.11
    8.00  -62.27  299.80  -60.67  201.58
    9.00  -61.64  314.80  -63.68  215.56
   10.00  -61.22  329.80  -67.04  231.40
   11.00  -61.03  344.80  -70.33  250.54
   12.00  -61.07  359.80  -73.01  275.00
   13.00  -61.33   14.80  -73.98  305.04
   14.00  -61.81   29.80  -72.56  334.49
   15.00  -62.52   44.80  -69.75  358.06
   16.00  -63.45   59.80  -66.82   17.02
   17.00  -64.60   74.80  -64.25   33.71
   18.00  -64.84   89.80  -60.86   47.31
   19.00  -63.45  104.80  -56.07   57.87
   20.00  -61.89  119.80  -51.59   68.27
   21.00  -60.59  134.80  -48.04   78.88
   22.00  -58.75  149.80  -44.61   89.27
   23.00  -57.66  164.80  -42.52  100.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.50  179.80  -53.96  114.05
    1.00  -70.57  194.80  -54.91  123.41
    2.00  -71.57  209.80  -56.34  132.28
    3.00  -72.11  224.80  -57.82  140.92
    4.00  -72.94  239.80  -60.00  149.17
    5.00  -74.34  254.80  -63.04  156.36
    6.00  -74.70  269.80  -65.49  164.08
    7.00  -73.71  284.80  -67.25  174.06
    8.00  -73.69  299.80  -70.22  182.65
    9.00  -74.04  314.80  -73.77  190.46
   10.00  -73.47  329.80  -77.03  202.07
   11.00  -73.08  344.80  -80.61  216.47
   12.00  -72.82  359.80  -84.25  239.76
   13.00  -72.59   14.80  -86.51  298.19
   14.00  -72.56   29.80  -84.40    1.39
   15.00  -72.32   44.80  -80.17   25.10
   16.00  -72.64   59.80  -76.20   41.05
   17.00  -72.80   74.80  -72.31   52.69
   18.00  -72.29   89.80  -68.19   61.29
   19.00  -71.27  104.80  -63.98   68.97
   20.00  -70.79  119.80  -60.73   77.75
   21.00  -70.01  134.80  -57.77   86.24
   22.00  -70.21  149.80  -56.38   95.68
   23.00  -69.30  164.80  -54.37  104.54
</PRE>


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