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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 Jul 1997 11:57:00 yearsecs  18273420
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.61  255.67  -48.04  169.71
    1.00  -58.07  270.67  -50.99  181.49
    2.00  -58.52  285.67  -54.19  193.55
    3.00  -58.97  300.67  -57.78  205.92
    4.00  -58.99  315.67  -61.38  219.59
    5.00  -59.84  330.67  -65.91  234.21
    6.00  -61.59  345.67  -71.06  251.03
    7.00  -62.76    0.67  -74.89  274.71
    8.00  -62.86   15.67  -75.68  306.49
    9.00  -62.21   30.67  -72.87  336.32
   10.00  -61.79   45.67  -68.59  358.24
   11.00  -61.59   60.67  -64.26   15.07
   12.00  -61.62   75.67  -60.48   29.80
   13.00  -61.88   90.67  -57.32   43.79
   14.00  -62.35  105.67  -54.70   57.30
   15.00  -63.06  120.67  -52.69   70.02
   16.00  -63.98  135.67  -51.49   81.88
   17.00  -65.14  150.67  -51.15   93.13
   18.00  -65.30  165.67  -50.29  103.52
   19.00  -64.11  180.67  -48.52  113.54
   20.00  -62.47  195.67  -46.89  123.84
   21.00  -61.29  210.67  -46.42  134.55
   22.00  -59.53  225.67  -45.99  145.89
   23.00  -58.43  240.67  -46.67  157.62
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -75.19  255.67  -63.90  155.83
    1.00  -76.04  270.67  -66.71  162.39
    2.00  -76.91  285.67  -69.79  167.91
    3.00  -77.51  300.67  -72.87  172.85
    4.00  -78.48  315.67  -76.20  174.71
    5.00  -79.18  330.67  -79.30  174.24
    6.00  -79.19  345.67  -82.22  173.04
    7.00  -78.36    0.67  -85.39  170.71
    8.00  -78.33   15.67  -87.26  126.53
    9.00  -78.41   30.67  -85.44   79.91
   10.00  -77.95   45.67  -82.26   66.03
   11.00  -77.57   60.67  -78.64   65.29
   12.00  -77.28   75.67  -75.05   68.88
   13.00  -77.05   90.67  -71.70   74.25
   14.00  -76.94  105.67  -68.76   80.56
   15.00  -76.64  120.67  -66.09   86.89
   16.00  -76.76  135.67  -64.28   94.21
   17.00  -76.75  150.67  -62.83  101.46
   18.00  -76.56  165.67  -61.64  108.76
   19.00  -76.16  180.67  -60.67  116.21
   20.00  -75.95  195.67  -60.35  123.92
   21.00  -75.30  210.67  -60.07  131.86
   22.00  -75.47  225.67  -61.10  139.70
   23.00  -74.86  240.67  -61.85  148.13
</PRE>


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