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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>
23 Jul 1997 23:40:12 yearsecs  17624412
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.07   74.63  -62.50   31.02
    1.00  -63.39   89.63  -59.29   45.00
    2.00  -64.02  104.63  -56.71   58.44
    3.00  -64.64  119.63  -54.53   70.76
    4.00  -64.37  134.63  -52.02   81.42
    5.00  -65.63  149.63  -51.74   92.70
    6.00  -65.95  164.63  -51.00  103.06
    7.00  -65.82  179.63  -50.26  113.16
    8.00  -66.50  194.63  -50.86  123.22
    9.00  -65.93  209.63  -50.84  133.17
   10.00  -65.52  224.63  -51.58  143.33
   11.00  -65.33  239.63  -53.03  153.70
   12.00  -65.36  254.63  -55.08  164.20
   13.00  -65.62  269.63  -57.68  174.74
   14.00  -66.10  284.63  -60.86  185.17
   15.00  -66.81  299.63  -64.68  195.44
   16.00  -67.74  314.63  -69.06  205.76
   17.00  -68.87  329.63  -73.76  216.77
   18.00  -68.86  344.63  -77.53  234.06
   19.00  -68.19  359.65  -80.20  262.24
   20.00  -66.90   14.63  -80.25  302.61
   21.00  -65.82   29.63  -77.36  338.09
   22.00  -64.68   44.63  -72.43    1.14
   23.00  -63.55   59.63  -66.99   17.02
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.91   74.63  -73.20   56.10
    1.00  -75.01   89.63  -70.45   67.94
    2.00  -75.96  104.63  -68.16   77.88
    3.00  -77.36  119.63  -66.88   87.71
    4.00  -79.69  134.63  -67.10   98.08
    5.00  -80.53  149.63  -66.57  105.18
    6.00  -80.08  164.63  -65.24  110.76
    7.00  -79.86  179.63  -64.49  116.96
    8.00  -80.26  194.63  -64.76  123.42
    9.00  -79.93  209.63  -64.69  129.85
   10.00  -79.95  224.63  -65.37  136.23
   11.00  -79.72  239.63  -66.21  142.78
   12.00  -79.40  254.63  -67.37  149.51
   13.00  -79.17  269.63  -69.00  156.07
   14.00  -79.23  284.63  -71.17  161.76
   15.00  -78.83  299.63  -73.39  168.30
   16.00  -78.68  314.63  -76.08  173.57
   17.00  -77.41  329.63  -78.74  183.82
   18.00  -77.22  344.63  -82.08  188.53
   19.00  -77.70  359.65  -85.45  180.14
   20.00  -77.15   14.63  -88.48  138.32
   21.00  -75.45   29.63  -86.22   35.15
   22.00  -74.69   44.63  -81.74   39.66
   23.00  -73.99   59.63  -77.19   46.62
</PRE>


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