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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>
28 Mar 1997 15:23:47 yearsecs   7485827
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.36  204.86  -43.20  130.61
    1.00  -59.66  219.86  -45.56  141.55
    2.00  -60.54  234.86  -47.98  152.38
    3.00  -67.66  249.86  -56.46  159.29
    4.00  -67.24  264.86  -58.32  169.87
    5.00  -67.87  279.86  -61.48  179.64
    6.00  -67.74  294.86  -64.41  190.49
    7.00  -67.89  309.86  -68.01  201.60
    8.00  -67.80  324.86  -71.69  214.69
    9.00  -67.43  339.86  -75.16  231.83
   10.00  -67.57  354.86  -78.71  254.37
   11.00  -67.85    9.86  -81.15  288.58
   12.00  -68.46   24.86  -81.17  331.29
   13.00  -68.40   39.86  -77.88    2.30
   14.00  -68.40   54.86  -73.77   22.11
   15.00  -68.31   69.86  -69.55   36.66
   16.00  -68.36   84.86  -65.72   49.37
   17.00  -68.24   99.86  -62.10   60.63
   18.00  -69.72  114.86  -60.53   73.20
   19.00  -70.06  129.86  -58.47   83.20
   20.00  -69.06  144.86  -55.68   91.78
   21.00  -66.68  159.86  -52.03  100.16
   22.00  -62.86  174.86  -47.41  109.20
   23.00  -60.27  189.86  -44.61  119.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.36  204.86  -48.09  130.22
    1.00  -64.66  219.86  -50.34  140.33
    2.00  -65.54  234.86  -52.66  150.30
    3.00  -72.79  249.86  -61.04  155.14
    4.00  -75.41  264.86  -65.34  160.39
    5.00  -75.78  279.86  -67.98  167.49
    6.00  -74.55  294.86  -69.82  177.91
    7.00  -72.89  309.86  -71.87  190.68
    8.00  -72.80  324.86  -75.39  200.98
    9.00  -72.43  339.86  -78.95  214.78
   10.00  -72.57  354.86  -82.87  232.50
   11.00  -72.85    9.86  -86.33  271.41
   12.00  -73.46   24.86  -86.31  354.70
   13.00  -73.40   39.86  -82.34   25.63
   14.00  -73.40   54.86  -78.12   40.36
   15.00  -73.31   69.86  -73.99   50.97
   16.00  -73.36   84.86  -70.26   60.80
   17.00  -73.24   99.86  -66.79   69.58
   18.00  -74.72  114.86  -65.28   80.69
   19.00  -75.06  129.86  -63.37   89.05
   20.00  -74.06  144.86  -60.69   95.91
   21.00  -71.68  159.86  -57.08  102.70
   22.00  -67.86  174.86  -52.45  110.49
   23.00  -65.27  189.86  -49.59  119.97
</PRE>


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