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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>
31 Oct 1997 18:36:16 yearsecs  26246176
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.59  149.45  -48.64   90.91
    1.00  -63.13  164.45  -48.15  101.89
    2.00  -63.68  179.45  -48.11  112.61
    3.00  -64.21  194.45  -48.59  123.04
    4.00  -63.90  209.45  -48.87  133.34
    5.00  -65.22  224.45  -51.28  143.30
    6.00  -65.60  239.45  -53.26  153.44
    7.00  -65.50  254.45  -55.17  163.98
    8.00  -66.20  269.45  -58.16  174.07
    9.00  -65.56  284.45  -60.35  185.68
   10.00  -65.14  299.45  -63.18  197.68
   11.00  -64.95  314.45  -66.62  210.48
   12.00  -64.98  329.45  -70.44  225.03
   13.00  -65.24  344.45  -74.30  243.04
   14.00  -65.72  359.46  -77.75  267.68
   15.00  -66.43   14.45  -79.73  302.36
   16.00  -67.36   29.45  -79.15  340.17
   17.00  -68.22   44.45  -76.46    8.68
   18.00  -68.00   59.45  -72.07   25.94
   19.00  -67.64   74.45  -67.64   39.22
   20.00  -66.51   89.45  -62.72   49.71
   21.00  -65.41  104.45  -58.22   60.06
   22.00  -64.22  119.45  -54.12   70.21
   23.00  -63.04  134.45  -50.66   80.31
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.66  149.45  -55.86   95.10
    1.00  -71.07  164.45  -56.18  105.14
    2.00  -72.26  179.45  -56.75  114.50
    3.00  -73.48  194.45  -57.84  123.25
    4.00  -76.48  209.45  -61.20  130.89
    5.00  -77.62  224.45  -63.10  137.78
    6.00  -77.02  239.45  -63.72  145.56
    7.00  -76.29  254.45  -64.70  153.83
    8.00  -77.30  269.45  -67.53  159.60
    9.00  -76.93  284.45  -69.60  167.31
   10.00  -76.94  299.45  -72.31  174.03
   11.00  -76.70  314.45  -75.19  181.30
   12.00  -76.21  329.45  -78.30  189.78
   13.00  -75.95  344.45  -81.79  197.97
   14.00  -76.02  359.46  -85.60  203.20
   15.00  -75.45   14.45  -89.42  252.92
   16.00  -75.14   29.45  -86.18   30.11
   17.00  -73.22   44.45  -80.92   29.76
   18.00  -73.00   59.45  -76.56   42.23
   19.00  -73.70   74.45  -73.09   55.28
   20.00  -73.18   89.45  -69.03   63.17
   21.00  -71.08  104.45  -63.87   68.44
   22.00  -70.38  119.45  -60.39   77.02
   23.00  -69.64  134.45  -57.44   85.68
</PRE>


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