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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>
19 Jul 1997 12:43:20 yearsecs  17239400
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.00  245.84  -45.98  162.25
    1.00  -57.31  260.84  -48.59  174.01
    2.00  -57.59  275.84  -51.47  186.07
    3.00  -57.87  290.84  -54.62  198.48
    4.00  -58.13  305.84  -58.16  211.36
    5.00  -58.79  320.84  -62.47  224.93
    6.00  -60.63  335.84  -67.92  239.28
    7.00  -61.86  350.84  -72.38  258.52
    8.00  -61.92    5.84  -74.51  285.97
    9.00  -61.42   20.84  -73.59  317.45
   10.00  -61.13   35.84  -70.32  343.83
   11.00  -61.03   50.84  -66.20    3.56
   12.00  -61.14   65.84  -62.33   19.67
   13.00  -61.47   80.84  -59.06   34.37
   14.00  -62.00   95.84  -56.34   48.49
   15.00  -62.75  110.84  -54.11   61.97
   16.00  -63.71  125.84  -52.55   74.50
   17.00  -64.88  140.84  -51.83   86.16
   18.00  -65.14  155.84  -50.75   96.70
   19.00  -63.80  170.84  -48.52  106.62
   20.00  -62.13  185.84  -46.47  116.87
   21.00  -60.92  200.84  -45.52  127.53
   22.00  -59.06  215.84  -44.64  138.69
   23.00  -57.94  230.84  -45.00  150.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.44  245.84  -59.33  153.90
    1.00  -72.34  260.84  -62.14  162.08
    2.00  -73.19  275.84  -65.25  169.79
    3.00  -73.64  290.84  -68.35  177.63
    4.00  -74.36  305.84  -71.97  184.42
    5.00  -75.60  320.84  -76.05  188.38
    6.00  -75.74  335.84  -79.62  195.17
    7.00  -74.96  350.84  -83.09  209.41
    8.00  -74.96    5.84  -87.03  226.87
    9.00  -75.31   20.84  -88.58   15.16
   10.00  -74.83   35.84  -84.27   33.25
   11.00  -74.51   50.84  -79.92   43.13
   12.00  -74.32   65.84  -75.75   52.12
   13.00  -74.16   80.84  -71.85   60.61
   14.00  -74.18   95.84  -68.44   69.28
   15.00  -74.02  110.84  -65.34   77.30
   16.00  -74.37  125.84  -63.26   85.99
   17.00  -74.58  140.84  -61.61   94.26
   18.00  -74.20  155.84  -59.89  102.02
   19.00  -73.25  170.84  -58.05  109.86
   20.00  -72.91  185.84  -57.28  118.32
   21.00  -72.13  200.84  -56.58  126.95
   22.00  -72.22  215.84  -57.30  135.65
   23.00  -71.32  230.84  -57.60  144.90
</PRE>


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