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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>
19 Sep 1997 11:57:46 yearsecs  22593466
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.07  250.98  -50.61  164.19
    1.00  -62.35  265.98  -54.13  174.74
    2.00  -63.17  280.98  -57.54  185.55
    3.00  -67.50  295.98  -64.45  191.67
    4.00  -67.28  310.98  -67.77  203.61
    5.00  -68.16  325.98  -72.27  214.94
    6.00  -68.41  340.98  -76.26  230.62
    7.00  -69.06  355.98  -80.30  251.88
    8.00  -69.37   10.98  -82.85  289.33
    9.00  -69.39   25.98  -82.01  336.25
   10.00  -68.92   40.98  -78.13    5.64
   11.00  -68.51   55.98  -73.57   23.63
   12.00  -68.37   70.98  -69.31   37.79
   13.00  -68.49   85.98  -65.58   50.51
   14.00  -68.87  100.98  -62.47   62.44
   15.00  -69.51  115.98  -60.13   73.67
   16.00  -70.13  130.98  -58.39   83.98
   17.00  -70.21  145.98  -56.73   93.33
   18.00  -70.31  160.98  -55.63  102.64
   19.00  -69.61  175.98  -54.18  111.69
   20.00  -68.82  190.98  -53.14  120.97
   21.00  -68.07  205.98  -52.73  130.50
   22.00  -65.22  220.98  -50.97  140.94
   23.00  -62.89  235.98  -50.32  152.25
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.07  250.98  -55.19  161.15
    1.00  -67.35  265.98  -58.60  170.54
    2.00  -68.17  280.98  -61.95  180.04
    3.00  -75.01  295.98  -70.37  177.44
    4.00  -77.23  310.98  -74.73  177.95
    5.00  -77.95  325.98  -78.12  180.00
    6.00  -77.21  340.98  -81.24  187.91
    7.00  -76.06  355.98  -84.71  201.63
    8.00  -76.26   10.98  -88.55  191.57
    9.00  -76.36   25.98  -87.30   52.34
   10.00  -76.16   40.98  -83.28   49.73
   11.00  -76.31   55.98  -79.38   56.56
   12.00  -76.69   70.98  -75.84   64.62
   13.00  -76.53   85.98  -72.34   70.56
   14.00  -76.36  100.98  -69.16   77.05
   15.00  -76.19  115.98  -66.41   83.86
   16.00  -76.02  130.98  -64.13   90.92
   17.00  -75.72  145.98  -62.22   98.10
   18.00  -76.95  160.98  -62.30  106.69
   19.00  -77.21  175.98  -61.87  114.21
   20.00  -76.17  190.98  -60.56  121.51
   21.00  -73.85  205.98  -58.45  129.65
   22.00  -70.22  220.98  -55.72  139.39
   23.00  -67.89  235.98  -54.95  149.92
</PRE>


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