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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>
27 May 1997 23:26:47 yearsecs  12698807
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.44   75.42  -60.31   29.30
    1.00  -62.03   90.42  -57.56   43.78
    2.00  -62.62  105.42  -55.04   57.40
    3.00  -63.20  120.42  -52.88   69.96
    4.00  -62.56  135.42  -50.03   80.68
    5.00  -63.68  150.42  -49.67   92.17
    6.00  -64.17  165.42  -49.16  102.94
    7.00  -64.63  180.42  -49.04  113.46
    8.00  -65.07  195.42  -49.45  123.71
    9.00  -64.97  210.42  -49.96  133.84
   10.00  -64.97  225.42  -51.14  144.05
   11.00  -64.51  240.42  -52.38  154.66
   12.00  -64.47  255.42  -54.39  165.38
   13.00  -64.68  270.42  -56.98  176.16
   14.00  -65.12  285.42  -60.15  186.90
   15.00  -65.80  300.42  -63.97  197.54
   16.00  -66.70  315.42  -68.38  208.37
   17.00  -67.36  330.42  -72.74  221.20
   18.00  -67.11  345.42  -76.22  240.15
   19.00  -67.13    0.42  -79.31  266.70
   20.00  -65.66   15.42  -78.85  305.12
   21.00  -64.52   30.42  -75.69  338.02
   22.00  -63.14   45.42  -70.36  359.76
   23.00  -61.96   60.42  -64.80   15.35
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.24   75.42  -68.00   41.34
    1.00  -69.24   90.42  -65.24   55.36
    2.00  -70.27  105.42  -62.89   67.74
    3.00  -71.23  120.42  -61.06   78.70
    4.00  -73.94  135.42  -61.59   90.63
    5.00  -74.97  150.42  -61.09   99.72
    6.00  -74.79  165.42  -59.88  107.60
    7.00  -74.11  180.42  -58.60  115.52
    8.00  -74.85  195.42  -59.23  123.79
    9.00  -75.10  210.42  -59.86  131.78
   10.00  -75.16  225.42  -60.78  139.74
   11.00  -74.92  240.42  -61.88  147.95
   12.00  -74.56  255.42  -63.32  156.44
   13.00  -74.46  270.42  -65.39  164.80
   14.00  -74.51  285.42  -67.99  172.89
   15.00  -74.02  300.42  -70.58  182.23
   16.00  -73.89  315.42  -73.82  191.30
   17.00  -72.36  330.42  -76.50  206.76
   18.00  -72.11  345.42  -80.16  222.21
   19.00  -72.75    0.42  -84.35  241.71
   20.00  -72.06   15.42  -85.93  302.17
   21.00  -69.94   30.42  -81.75  349.14
   22.00  -69.30   45.42  -77.31   13.31
   23.00  -68.15   60.42  -71.96   27.30
</PRE>


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