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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>
31 May 1997 14:12:35 yearsecs  13011155
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.17  225.08  -49.41  144.38
    1.00  -63.49  240.08  -51.39  154.92
    2.00  -64.13  255.08  -54.03  165.37
    3.00  -64.76  270.08  -56.99  175.85
    4.00  -64.49  285.08  -59.53  187.34
    5.00  -65.74  300.08  -63.85  197.35
    6.00  -66.06  315.08  -67.74  209.21
    7.00  -65.91  330.08  -71.41  223.94
    8.00  -66.35  345.08  -75.46  241.51
    9.00  -66.08    0.08  -78.21  268.28
   10.00  -65.66   15.08  -78.86  304.28
   11.00  -65.46   30.08  -76.86  338.51
   12.00  -65.49   45.08  -73.27    3.23
   13.00  -65.74   60.08  -69.44   21.52
   14.00  -66.21   75.08  -65.97   36.90
   15.00  -66.91   90.08  -62.99   50.91
   16.00  -67.83  105.08  -60.57   63.85
   17.00  -68.95  120.08  -58.85   75.69
   18.00  -68.93  135.08  -56.65   85.44
   19.00  -68.26  150.08  -54.38   94.58
   20.00  -66.98  165.08  -52.02  103.77
   21.00  -65.90  180.08  -50.33  113.48
   22.00  -64.77  195.08  -49.15  123.48
   23.00  -63.65  210.08  -48.66  133.80
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.43  225.08  -56.25  141.82
    1.00  -71.63  240.08  -58.83  150.28
    2.00  -72.66  255.08  -61.61  158.33
    3.00  -74.27  270.08  -65.19  164.89
    4.00  -77.05  285.08  -69.79  167.31
    5.00  -77.99  300.08  -73.03  171.14
    6.00  -77.29  315.08  -75.60  179.30
    7.00  -76.76  330.08  -78.64  187.29
    8.00  -77.22  345.08  -82.19  188.55
    9.00  -77.26    0.08  -85.67  185.58
   10.00  -77.40   15.08  -88.25  132.64
   11.00  -77.22   30.08  -86.08   64.50
   12.00  -76.93   45.08  -82.34   57.54
   13.00  -76.75   60.08  -78.51   60.64
   14.00  -76.91   75.08  -75.00   67.21
   15.00  -76.51   90.08  -71.45   72.38
   16.00  -76.42  105.08  -68.45   79.12
   17.00  -74.98  120.08  -64.68   83.86
   18.00  -74.84  135.08  -62.50   91.49
   19.00  -75.44  150.08  -61.58   99.95
   20.00  -74.75  165.08  -59.85  107.39
   21.00  -72.63  180.08  -57.10  114.95
   22.00  -71.61  195.08  -55.96  123.59
   23.00  -70.65  210.08  -55.45  132.64
</PRE>


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