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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>
29 Apr 1997 12:15:19 yearsecs  10239319
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.88  249.20  -50.18  162.95
    1.00  -62.22  264.20  -53.72  173.48
    2.00  -63.10  279.20  -57.14  184.25
    3.00  -67.23  294.20  -63.83  190.76
    4.00  -67.22  309.20  -67.28  202.28
    5.00  -68.38  324.20  -71.99  212.80
    6.00  -69.00  339.20  -76.29  226.72
    7.00  -69.88  354.20  -80.64  245.41
    8.00  -69.70    9.20  -83.07  282.98
    9.00  -69.42   24.20  -82.33  331.43
   10.00  -68.74   39.20  -78.41    2.24
   11.00  -68.16   54.20  -73.70   20.73
   12.00  -67.88   69.20  -69.28   35.07
   13.00  -67.90   84.20  -65.42   47.94
   14.00  -68.20   99.20  -62.20   60.08
   15.00  -68.79  114.20  -59.73   71.56
   16.00  -69.38  129.20  -57.88   82.09
   17.00  -69.40  144.20  -56.09   91.62
   18.00  -69.47  159.20  -54.90  101.10
   19.00  -68.73  174.20  -53.35  110.31
   20.00  -67.94  189.20  -52.26  119.77
   21.00  -67.21  204.20  -51.82  129.45
   22.00  -64.99  219.20  -50.60  139.80
   23.00  -62.67  234.20  -49.91  151.06
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.88  249.20  -54.78  160.03
    1.00  -67.22  264.20  -58.20  169.43
    2.00  -68.10  279.20  -61.55  178.90
    3.00  -75.00  294.20  -70.01  176.54
    4.00  -77.33  309.20  -74.43  176.86
    5.00  -77.46  324.20  -77.59  181.86
    6.00  -77.08  339.20  -80.81  188.36
    7.00  -75.89  354.20  -84.23  202.74
    8.00  -76.08    9.20  -88.13  201.62
    9.00  -76.16   24.20  -87.79   48.57
   10.00  -75.93   39.20  -83.71   46.84
   11.00  -76.06   54.20  -79.74   54.34
   12.00  -76.43   69.20  -76.13   62.76
   13.00  -76.25   84.20  -72.54   68.86
   14.00  -76.06   99.20  -69.27   75.48
   15.00  -75.87  114.20  -66.42   82.40
   16.00  -75.68  129.20  -64.04   89.56
   17.00  -75.43  144.20  -62.11   96.90
   18.00  -76.71  159.20  -62.17  105.63
   19.00  -76.99  174.20  -61.71  113.25
   20.00  -75.96  189.20  -60.35  120.57
   21.00  -73.63  204.20  -58.17  128.70
   22.00  -69.99  219.20  -55.36  138.37
   23.00  -67.67  234.20  -54.55  148.86
</PRE>


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