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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>
01 May 1997 13:33:29 yearsecs  10416809
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.36  232.35  -49.41  149.85
    1.00  -62.91  247.35  -51.81  160.48
    2.00  -63.46  262.35  -54.55  171.17
    3.00  -64.01  277.35  -57.62  181.96
    4.00  -63.64  292.35  -60.27  193.94
    5.00  -64.93  307.35  -64.85  204.40
    6.00  -65.37  322.35  -68.99  217.08
    7.00  -65.34  337.35  -72.72  233.43
    8.00  -65.97  352.35  -76.69  253.83
    9.00  -65.38    7.35  -78.34  285.62
   10.00  -64.97   22.35  -77.54  321.62
   11.00  -64.78   37.35  -74.44  350.50
   12.00  -64.82   52.35  -70.49   11.14
   13.00  -65.07   67.35  -66.72   27.53
   14.00  -65.56   82.35  -63.42   42.11
   15.00  -66.26   97.35  -60.64   55.67
   16.00  -67.20  112.35  -58.47   68.26
   17.00  -68.35  127.35  -57.11   79.86
   18.00  -68.38  142.35  -55.25   89.66
   19.00  -67.69  157.35  -53.23   98.99
   20.00  -66.33  172.35  -51.01  108.39
   21.00  -65.23  187.35  -49.55  118.28
   22.00  -64.00  202.35  -48.61  128.45
   23.00  -62.82  217.35  -48.38  139.02
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.05  232.35  -59.36  144.80
    1.00  -74.14  247.35  -61.94  152.44
    2.00  -75.09  262.35  -64.72  159.52
    3.00  -76.07  277.35  -67.79  165.67
    4.00  -78.51  292.35  -71.97  166.63
    5.00  -79.48  307.35  -75.04  168.36
    6.00  -79.02  322.35  -77.66  173.89
    7.00  -78.44  337.35  -80.59  179.22
    8.00  -79.24  352.35  -83.46  169.57
    9.00  -78.95    7.35  -86.04  151.69
   10.00  -78.95   22.35  -86.28  103.82
   11.00  -78.74   37.35  -83.96   76.41
   12.00  -78.37   52.35  -80.73   68.99
   13.00  -78.19   67.35  -77.30   70.26
   14.00  -78.27   82.35  -74.13   75.08
   15.00  -77.85   97.35  -70.95   79.30
   16.00  -77.66  112.35  -68.24   85.11
   17.00  -76.21  127.35  -64.78   89.42
   18.00  -75.97  142.35  -62.81   96.53
   19.00  -76.63  157.35  -62.21  104.66
   20.00  -76.12  172.35  -60.89  111.92
   21.00  -74.36  187.35  -58.73  119.38
   22.00  -73.75  202.35  -58.24  127.65
   23.00  -73.05  217.35  -58.19  136.25
</PRE>


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