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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 11:46:53 yearsecs   9719213
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.58  255.66  -49.91  168.61
    1.00  -60.89  270.66  -53.60  179.46
    2.00  -61.71  285.66  -57.13  190.65
    3.00  -67.44  300.66  -65.45  195.26
    4.00  -67.32  315.66  -68.96  207.43
    5.00  -68.34  330.66  -73.61  219.12
    6.00  -68.98  345.66  -77.88  235.09
    7.00  -68.97    0.66  -81.14  262.10
    8.00  -69.34   15.66  -82.94  304.58
    9.00  -69.27   30.66  -81.00  347.45
   10.00  -68.74   45.66  -76.68   11.88
   11.00  -68.28   60.66  -72.03   27.89
   12.00  -68.10   75.66  -67.80   41.26
   13.00  -68.20   90.66  -64.16   53.61
   14.00  -68.56  105.66  -61.18   65.31
   15.00  -69.19  120.66  -59.00   76.35
   16.00  -69.81  135.66  -57.46   86.59
   17.00  -69.87  150.66  -55.96   95.99
   18.00  -69.97  165.66  -55.00  105.38
   19.00  -69.29  180.66  -53.72  114.54
   20.00  -68.50  195.66  -52.86  123.92
   21.00  -67.75  210.66  -52.66  133.54
   22.00  -64.06  225.66  -50.30  144.51
   23.00  -61.55  240.66  -49.64  156.25
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.58  255.66  -54.52  165.48
    1.00  -65.89  270.66  -58.09  175.23
    2.00  -66.71  285.66  -61.60  185.19
    3.00  -73.97  300.66  -70.60  182.50
    4.00  -76.10  315.66  -75.15  184.03
    5.00  -77.07  330.66  -78.87  185.93
    6.00  -76.31  345.66  -82.18  195.74
    7.00  -75.11    0.66  -85.72  216.61
    8.00  -75.36   15.66  -89.52  289.95
    9.00  -75.50   30.66  -85.95   36.79
   10.00  -75.31   45.66  -81.74   44.93
   11.00  -75.49   60.66  -77.80   54.37
   12.00  -75.92   75.66  -74.29   63.67
   13.00  -75.76   90.66  -70.80   70.53
   14.00  -75.61  105.66  -67.68   77.64
   15.00  -75.45  120.66  -65.02   84.90
   16.00  -75.28  135.66  -62.87   92.33
   17.00  -74.97  150.66  -61.07   99.84
   18.00  -76.25  165.66  -61.33  108.57
   19.00  -76.51  180.66  -61.04  116.30
   20.00  -75.40  195.66  -59.79  123.92
   21.00  -72.93  210.66  -57.72  132.47
   22.00  -69.06  225.66  -55.00  142.73
   23.00  -66.55  240.66  -54.27  153.76
</PRE>


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