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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>
21 Apr 1997 23:59:21 yearsecs   9590361
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.61   69.56  -56.66   18.77
    1.00  -57.82   84.56  -53.62   33.13
    2.00  -58.01   99.56  -50.92   47.12
    3.00  -58.17  114.56  -48.42   60.60
    4.00  -58.30  129.56  -46.28   73.23
    5.00  -58.82  144.56  -45.14   85.31
    6.00  -60.51  159.56  -45.75   97.36
    7.00  -61.84  174.56  -46.39  108.74
    8.00  -61.10  189.56  -45.44  119.43
    9.00  -59.87  204.56  -44.67  130.28
   10.00  -59.62  219.56  -45.49  141.33
   11.00  -59.94  234.56  -47.36  152.39
   12.00  -60.38  249.56  -49.76  163.49
   13.00  -60.97  264.56  -52.64  174.64
   14.00  -61.73  279.56  -55.97  185.79
   15.00  -62.65  294.56  -59.85  196.84
   16.00  -63.76  309.56  -64.34  207.97
   17.00  -65.05  324.56  -69.26  219.84
   18.00  -65.40  339.56  -73.30  236.10
   19.00  -64.17  354.56  -75.37  261.22
   20.00  -62.65    9.56  -75.50  293.21
   21.00  -61.60   24.56  -73.27  324.78
   22.00  -59.79   39.56  -67.65  348.01
   23.00  -58.62   54.56  -61.93    4.84
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.07   69.56  -68.34   33.61
    1.00  -68.01   84.56  -65.44   48.44
    2.00  -68.89   99.56  -62.81   61.46
    3.00  -69.27  114.56  -60.14   72.41
    4.00  -69.99  129.56  -58.44   82.94
    5.00  -71.39  144.56  -58.06   93.40
    6.00  -71.58  159.56  -57.00  102.47
    7.00  -70.11  174.56  -54.73  110.95
    8.00  -69.85  189.56  -54.17  120.17
    9.00  -69.87  204.56  -54.45  129.40
   10.00  -69.55  219.56  -54.98  138.73
   11.00  -69.39  234.56  -56.18  148.22
   12.00  -69.39  249.56  -57.97  157.82
   13.00  -69.41  264.56  -60.17  167.56
   14.00  -69.65  279.56  -62.95  177.18
   15.00  -69.64  294.56  -65.95  187.30
   16.00  -70.28  309.56  -69.86  196.66
   17.00  -70.72  324.56  -73.89  207.17
   18.00  -70.40  339.56  -77.47  222.58
   19.00  -69.39  354.56  -80.29  247.98
   20.00  -69.13    9.56  -82.49  285.43
   21.00  -68.33   24.56  -81.07  330.29
   22.00  -68.36   39.56  -77.91    1.70
   23.00  -67.10   54.56  -72.48   18.48
</PRE>


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