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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>
13 Oct 1997 15:31:28 yearsecs  24679888
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.84  195.47  -49.23  123.74
    1.00  -64.21  210.47  -49.23  133.99
    2.00  -65.27  225.47  -51.42  143.98
    3.00  -66.32  240.47  -54.04  153.76
    4.00  -66.13  255.47  -55.89  164.24
    5.00  -67.10  270.47  -59.13  173.92
    6.00  -67.23  285.47  -62.01  184.40
    7.00  -67.07  300.47  -65.10  195.68
    8.00  -67.74  315.47  -69.27  206.47
    9.00  -67.37  330.47  -72.76  221.25
   10.00  -66.97  345.47  -76.10  240.58
   11.00  -66.78    0.47  -78.96  267.63
   12.00  -66.81   15.47  -80.14  304.89
   13.00  -67.07   30.47  -78.62  341.79
   14.00  -67.55   45.47  -75.48    8.32
   15.00  -68.26   60.47  -72.06   27.64
   16.00  -69.19   75.47  -68.93   43.54
   17.00  -70.16   90.47  -66.10   57.20
   18.00  -69.94  105.47  -62.57   67.27
   19.00  -69.40  120.47  -59.24   76.48
   20.00  -68.34  135.47  -56.00   85.17
   21.00  -67.33  150.47  -53.41   94.26
   22.00  -66.36  165.47  -51.37  103.79
   23.00  -65.52  180.47  -49.93  113.67
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.01  195.47  -54.36  123.81
    1.00  -71.07  210.47  -55.88  132.79
    2.00  -72.08  225.47  -57.84  141.34
    3.00  -76.05  240.47  -62.93  146.97
    4.00  -78.43  255.47  -66.65  151.36
    5.00  -78.83  270.47  -68.85  157.12
    6.00  -78.11  285.47  -70.58  164.96
    7.00  -77.48  300.47  -72.81  172.87
    8.00  -77.96  315.47  -75.97  176.79
    9.00  -77.72  330.47  -79.01  182.37
   10.00  -77.85  345.47  -82.31  183.58
   11.00  -77.59    0.47  -85.67  180.72
   12.00  -77.68   15.47  -87.96  128.75
   13.00  -77.43   30.47  -85.92   67.23
   14.00  -77.47   45.47  -82.30   62.07
   15.00  -77.15   60.47  -78.56   62.94
   16.00  -77.37   75.47  -75.15   69.20
   17.00  -76.91   90.47  -71.65   73.74
   18.00  -77.19  105.47  -69.00   81.07
   19.00  -76.90  120.47  -66.36   87.27
   20.00  -75.89  135.47  -63.47   92.99
   21.00  -73.88  150.47  -60.00   98.83
   22.00  -72.06  165.47  -57.11  106.22
   23.00  -70.58  180.47  -55.02  114.70
</PRE>


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