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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 Apr 1997 11:46:45 yearsecs   9719205
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.57  255.69  -49.91  168.64
    1.00  -60.88  270.69  -53.59  179.49
    2.00  -61.70  285.69  -57.13  190.69
    3.00  -67.44  300.69  -65.46  195.28
    4.00  -67.32  315.69  -68.97  207.46
    5.00  -68.34  330.69  -73.62  219.15
    6.00  -68.99  345.69  -77.89  235.11
    7.00  -68.98    0.69  -81.15  262.15
    8.00  -69.34   15.69  -82.94  304.68
    9.00  -69.27   30.69  -80.99  347.52
   10.00  -68.74   45.69  -76.67   11.92
   11.00  -68.28   60.69  -72.02   27.92
   12.00  -68.10   75.69  -67.80   41.28
   13.00  -68.20   90.69  -64.15   53.63
   14.00  -68.56  105.69  -61.17   65.33
   15.00  -69.19  120.69  -58.99   76.37
   16.00  -69.81  135.69  -57.45   86.60
   17.00  -69.87  150.69  -55.96   96.01
   18.00  -69.96  165.69  -55.00  105.39
   19.00  -69.29  180.69  -53.72  114.56
   20.00  -68.49  195.69  -52.85  123.94
   21.00  -67.75  210.69  -52.66  133.56
   22.00  -64.05  225.69  -50.30  144.53
   23.00  -61.54  240.69  -49.64  156.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.57  255.69  -54.52  165.51
    1.00  -65.88  270.69  -58.09  175.26
    2.00  -66.70  285.69  -61.59  185.22
    3.00  -73.96  300.69  -70.60  182.53
    4.00  -76.09  315.69  -75.15  184.07
    5.00  -77.06  330.69  -78.88  185.97
    6.00  -76.31  345.69  -82.19  195.80
    7.00  -75.11    0.69  -85.72  216.72
    8.00  -75.36   15.69  -89.52  291.09
    9.00  -75.49   30.69  -85.94   36.75
   10.00  -75.30   45.69  -81.73   44.92
   11.00  -75.49   60.69  -77.79   54.37
   12.00  -75.91   75.69  -74.29   63.68
   13.00  -75.76   90.69  -70.79   70.54
   14.00  -75.60  105.69  -67.67   77.65
   15.00  -75.44  120.69  -65.01   84.91
   16.00  -75.28  135.69  -62.86   92.34
   17.00  -74.97  150.69  -61.07   99.86
   18.00  -76.25  165.69  -61.33  108.58
   19.00  -76.51  180.69  -61.03  116.32
   20.00  -75.40  195.69  -59.79  123.93
   21.00  -72.92  210.69  -57.71  132.49
   22.00  -69.05  225.69  -55.00  142.76
   23.00  -66.54  240.69  -54.27  153.78
</PRE>


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