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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
25 Oct 1997 16:27:54 yearsecs  25720074
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.85  180.36  -46.25  112.92
    1.00  -62.43  195.36  -46.84  123.62
    2.00  -63.01  210.36  -48.06  134.09
    3.00  -63.59  225.36  -49.83  144.45
    4.00  -63.10  240.36  -51.06  155.31
    5.00  -64.33  255.36  -54.25  165.44
    6.00  -64.91  270.36  -57.17  175.92
    7.00  -65.01  285.36  -60.04  186.97
    8.00  -65.40  300.36  -63.62  198.04
    9.00  -65.02  315.36  -66.91  211.19
   10.00  -64.60  330.36  -70.33  226.71
   11.00  -64.41  345.36  -73.73  245.97
   12.00  -64.45    0.36  -76.59  271.73
   13.00  -64.71   15.36  -77.78  305.27
   14.00  -65.19   30.36  -76.49  338.70
   15.00  -65.90   45.36  -73.66    4.41
   16.00  -66.83   60.36  -70.57   24.11
   17.00  -67.98   75.36  -67.76   40.74
   18.00  -68.00   90.36  -64.03   53.02
   19.00  -67.32  105.36  -59.99   63.33
   20.00  -65.92  120.36  -55.72   72.57
   21.00  -64.81  135.36  -52.39   82.27
   22.00  -63.52  150.36  -49.51   92.04
   23.00  -62.34  165.36  -47.30  102.26
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -75.13  180.36  -59.64  115.76
    1.00  -76.09  195.36  -60.49  123.75
    2.00  -77.00  210.36  -61.76  131.19
    3.00  -77.89  225.36  -63.42  138.04
    4.00  -79.95  240.36  -66.48  142.81
    5.00  -80.89  255.36  -68.67  147.29
    6.00  -80.71  270.36  -70.20  153.00
    7.00  -80.42  285.36  -72.00  158.72
    8.00  -81.23  300.36  -74.58  160.03
    9.00  -81.30  315.36  -76.87  162.07
   10.00  -81.51  330.36  -79.18  160.90
   11.00  -81.27  345.36  -81.48  158.20
   12.00  -80.79    0.36  -83.72  149.54
   13.00  -80.47   15.36  -84.97  125.81
   14.00  -80.33   30.36  -84.15   97.92
   15.00  -79.83   45.36  -82.02   81.04
   16.00  -79.55   60.36  -79.08   76.57
   17.00  -78.29   75.36  -75.60   72.95
   18.00  -77.97   90.36  -72.36   76.95
   19.00  -78.35  105.36  -69.91   83.82
   20.00  -77.78  120.36  -67.14   88.82
   21.00  -76.19  135.36  -63.77   93.31
   22.00  -75.60  150.36  -61.72  100.24
   23.00  -74.95  165.36  -60.04  107.66
</PRE>


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