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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 Jan 1997 13:08:26 yearsecs   1948106
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.13  232.59  -52.03  148.92
    1.00  -64.35  247.59  -53.16  159.83
    2.00  -65.47  262.59  -56.38  169.80
    3.00  -66.58  277.59  -59.94  179.51
    4.00  -66.41  292.59  -62.77  190.69
    5.00  -67.32  307.59  -66.98  200.80
    6.00  -67.42  322.59  -70.80  213.38
    7.00  -67.26  337.59  -74.46  229.47
    8.00  -67.87  352.59  -78.52  249.39
    9.00  -67.61    7.59  -80.72  282.86
   10.00  -67.20   22.59  -80.06  323.74
   11.00  -67.01   37.59  -76.94  355.01
   12.00  -67.04   52.59  -72.96   16.07
   13.00  -67.30   67.59  -69.12   32.28
   14.00  -67.79   82.59  -65.71   46.41
   15.00  -68.50   97.59  -62.85   59.37
   16.00  -69.43  112.59  -60.67   71.31
   17.00  -70.37  127.59  -59.10   82.11
   18.00  -70.12  142.59  -56.98   91.16
   19.00  -69.60  157.59  -55.14  100.15
   20.00  -68.58  172.59  -53.27  109.23
   21.00  -67.58  187.59  -51.90  118.69
   22.00  -66.64  202.59  -51.20  128.44
   23.00  -65.84  217.59  -51.29  138.49
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.35  232.59  -58.73  145.36
    1.00  -73.34  247.59  -61.26  153.32
    2.00  -74.31  262.59  -64.08  160.70
    3.00  -78.19  277.59  -69.40  161.45
    4.00  -80.25  292.59  -72.97  161.47
    5.00  -80.42  307.59  -75.42  164.71
    6.00  -79.97  322.59  -77.89  169.24
    7.00  -79.47  337.59  -80.64  172.46
    8.00  -79.86  352.59  -83.24  164.15
    9.00  -79.59    7.59  -85.49  146.02
   10.00  -79.80   22.59  -85.42  108.48
   11.00  -79.49   37.59  -83.59   83.10
   12.00  -79.55   52.59  -80.66   76.99
   13.00  -79.26   67.59  -77.55   75.66
   14.00  -79.21   82.59  -74.54   78.72
   15.00  -78.89   97.59  -71.61   82.37
   16.00  -79.07  112.59  -69.32   88.34
   17.00  -78.76  127.59  -67.06   93.67
   18.00  -79.05  142.59  -65.75  100.39
   19.00  -78.64  157.59  -64.19  106.47
   20.00  -77.67  172.59  -62.46  112.77
   21.00  -75.87  187.59  -60.27  119.72
   22.00  -74.15  202.59  -58.64  127.73
   23.00  -72.83  217.59  -58.00  136.46
</PRE>


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