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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 Sep 1997 12:23:30 yearsecs  23113410
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.27  243.98  -49.82  158.84
    1.00  -62.51  258.98  -53.15  169.33
    2.00  -63.29  273.98  -56.36  180.06
    3.00  -67.66  288.98  -63.09  186.36
    4.00  -67.32  303.98  -66.12  197.99
    5.00  -68.05  318.98  -70.40  208.84
    6.00  -68.09  333.98  -74.25  223.25
    7.00  -68.76  348.98  -78.48  240.70
    8.00  -69.41    3.98  -82.11  268.78
    9.00  -69.53   18.98  -83.02  315.54
   10.00  -69.16   33.98  -80.13  354.11
   11.00  -68.82   48.98  -75.84   16.43
   12.00  -68.75   63.98  -71.58   32.31
   13.00  -68.91   78.98  -67.75   45.79
   14.00  -69.33   93.98  -64.49   58.16
   15.00  -69.99  108.98  -61.91   69.69
   16.00  -70.63  123.98  -59.90   80.16
   17.00  -70.73  138.98  -57.99   89.47
   18.00  -70.86  153.98  -56.68   98.67
   19.00  -70.17  168.98  -55.03  107.52
   20.00  -69.35  183.98  -53.72  116.64
   21.00  -68.59  198.98  -53.01  126.01
   22.00  -65.43  213.98  -50.63  136.16
   23.00  -63.09  228.98  -49.73  147.17
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.27  243.98  -54.43  156.18
    1.00  -67.51  258.98  -57.64  165.58
    2.00  -68.29  273.98  -60.77  175.07
    3.00  -75.07  288.98  -69.06  173.63
    4.00  -77.35  303.98  -73.41  174.72
    5.00  -77.72  318.98  -76.58  178.96
    6.00  -76.70  333.98  -79.51  189.06
    7.00  -75.68  348.98  -82.85  202.20
    8.00  -75.94    3.98  -86.76  205.65
    9.00  -76.10   18.98  -89.16   58.93
   10.00  -75.94   33.98  -85.13   44.82
   11.00  -76.13   48.98  -81.14   52.56
   12.00  -76.55   63.98  -77.46   61.12
   13.00  -76.42   78.98  -73.83   67.05
   14.00  -76.29   93.98  -70.49   73.56
   15.00  -76.15  108.98  -67.54   80.39
   16.00  -76.00  123.98  -65.05   87.44
   17.00  -75.84  138.98  -63.04   94.69
   18.00  -77.14  153.98  -62.95  103.43
   19.00  -77.38  168.98  -62.32  110.88
   20.00  -76.35  183.98  -60.80  117.95
   21.00  -74.04  198.98  -58.46  125.76
   22.00  -70.43  213.98  -55.45  135.05
   23.00  -68.09  228.98  -54.41  145.25
</PRE>


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