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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 13:07:12 yearsecs   1948032
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.13  232.90  -52.06  149.13
    1.00  -64.35  247.90  -53.21  160.06
    2.00  -65.47  262.90  -56.43  170.02
    3.00  -66.58  277.90  -59.99  179.73
    4.00  -66.41  292.90  -62.84  190.92
    5.00  -67.32  307.90  -67.06  201.05
    6.00  -67.42  322.90  -70.88  213.67
    7.00  -67.26  337.90  -74.53  229.85
    8.00  -67.87  352.90  -78.58  249.94
    9.00  -67.61    7.90  -80.74  283.69
   10.00  -67.20   22.90  -80.02  324.53
   11.00  -67.01   37.90  -76.86  355.54
   12.00  -67.04   52.90  -72.88   16.44
   13.00  -67.30   67.90  -69.03   32.57
   14.00  -67.79   82.90  -65.64   46.67
   15.00  -68.50   97.90  -62.78   59.60
   16.00  -69.43  112.90  -60.61   71.52
   17.00  -70.37  127.90  -59.06   82.30
   18.00  -70.12  142.90  -56.95   91.36
   19.00  -69.60  157.90  -55.12  100.35
   20.00  -68.58  172.90  -53.26  109.43
   21.00  -67.58  187.90  -51.90  118.89
   22.00  -66.64  202.90  -51.21  128.64
   23.00  -65.84  217.90  -51.31  138.70
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.36  232.90  -58.76  145.54
    1.00  -73.35  247.90  -61.30  153.49
    2.00  -74.32  262.90  -64.14  160.86
    3.00  -78.20  277.90  -69.45  161.57
    4.00  -80.26  292.90  -73.02  161.53
    5.00  -80.43  307.90  -75.47  164.75
    6.00  -79.98  322.90  -77.94  169.24
    7.00  -79.48  337.90  -80.69  172.38
    8.00  -79.86  352.90  -83.29  163.87
    9.00  -79.60    7.90  -85.52  145.31
   10.00  -79.81   22.90  -85.39  107.81
   11.00  -79.49   37.90  -83.53   82.88
   12.00  -79.55   52.90  -80.59   76.97
   13.00  -79.27   67.90  -77.49   75.72
   14.00  -79.21   82.90  -74.49   78.81
   15.00  -78.89   97.90  -71.55   82.49
   16.00  -79.07  112.90  -69.28   88.46
   17.00  -78.77  127.90  -67.02   93.80
   18.00  -79.05  142.90  -65.72  100.52
   19.00  -78.64  157.90  -64.17  106.62
   20.00  -77.67  172.90  -62.45  112.92
   21.00  -75.88  187.90  -60.27  119.88
   22.00  -74.15  202.90  -58.66  127.90
   23.00  -72.84  217.90  -58.03  136.63
</PRE>


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