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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>
25 Jul 1997 18:14:00 yearsecs  17777640
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.15  157.50  -49.61   97.39
    1.00  -64.01  172.50  -48.66  107.84
    2.00  -64.88  187.50  -49.21  118.34
    3.00  -65.75  202.50  -50.33  128.44
    4.00  -65.57  217.50  -51.02  138.50
    5.00  -66.70  232.50  -53.48  148.18
    6.00  -66.97  247.50  -55.53  158.16
    7.00  -66.89  262.50  -57.64  168.54
    8.00  -67.64  277.50  -60.84  178.26
    9.00  -67.33  292.50  -63.55  189.37
   10.00  -66.85  307.50  -66.56  201.53
   11.00  -66.55  322.50  -70.04  215.05
   12.00  -66.50  337.50  -73.78  231.16
   13.00  -66.69  352.50  -77.41  252.42
   14.00  -67.11    7.50  -80.19  283.51
   15.00  -67.76   22.50  -80.71  324.10
   16.00  -68.65   37.50  -78.74  359.09
   17.00  -69.64   52.50  -75.66   23.15
   18.00  -69.49   67.50  -71.34   37.48
   19.00  -68.64   82.50  -66.59   48.06
   20.00  -67.66   97.50  -62.04   57.95
   21.00  -66.66  112.50  -57.90   67.71
   22.00  -65.64  127.50  -54.31   77.41
   23.00  -64.70  142.50  -51.46   87.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.62  157.50  -57.18  101.27
    1.00  -72.84  172.50  -57.57  110.65
    2.00  -73.94  187.50  -58.31  119.41
    3.00  -76.65  202.50  -61.17  127.35
    4.00  -79.08  217.50  -64.15  133.69
    5.00  -79.78  232.50  -65.72  139.70
    6.00  -79.28  247.50  -66.53  146.68
    7.00  -78.82  262.50  -67.81  153.80
    8.00  -79.51  277.50  -70.31  158.40
    9.00  -79.30  292.50  -72.45  164.38
   10.00  -79.52  307.50  -75.09  168.25
   11.00  -79.35  322.50  -77.76  172.31
   12.00  -79.03  337.50  -80.64  175.34
   13.00  -78.65  352.50  -83.69  174.81
   14.00  -78.53    7.50  -86.41  155.51
   15.00  -78.01   22.50  -87.12   94.09
   16.00  -77.87   37.50  -84.18   67.42
   17.00  -76.78   52.50  -80.42   58.21
   18.00  -76.61   67.50  -76.63   62.81
   19.00  -76.41   82.50  -73.02   68.59
   20.00  -75.91   97.50  -69.49   74.29
   21.00  -74.06  112.50  -65.09   78.29
   22.00  -72.82  127.50  -61.53   84.89
   23.00  -71.80  142.50  -58.68   92.53
</PRE>


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