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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>
14 Apr 1997 15:17:15 yearsecs   8954235
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.53  207.00  -48.36  131.68
    1.00  -63.61  222.00  -49.53  142.09
    2.00  -64.35  237.00  -51.81  152.33
    3.00  -65.08  252.00  -54.44  162.52
    4.00  -64.83  267.00  -56.54  173.51
    5.00  -66.02  282.00  -60.27  183.33
    6.00  -66.29  297.00  -63.63  194.19
    7.00  -66.15  312.00  -67.06  206.39
    8.00  -66.85  327.00  -71.44  218.82
    9.00  -66.33  342.00  -74.72  237.27
   10.00  -65.90  357.00  -77.52  262.43
   11.00  -65.71   12.00  -78.92  296.54
   12.00  -65.74   27.00  -77.76  332.50
   13.00  -66.00   42.00  -74.68  359.85
   14.00  -66.48   57.00  -71.13   19.78
   15.00  -67.19   72.00  -67.82   36.09
   16.00  -68.12   87.00  -64.96   50.60
   17.00  -69.20  102.00  -62.58   63.70
   18.00  -69.14  117.00  -59.58   73.88
   19.00  -68.50  132.00  -56.61   83.05
   20.00  -67.28  147.00  -53.66   91.93
   21.00  -66.21  162.00  -51.42  101.38
   22.00  -65.12  177.00  -49.62  111.22
   23.00  -64.06  192.00  -48.41  121.34
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.90  207.00  -55.56  130.73
    1.00  -72.04  222.00  -57.54  139.31
    2.00  -73.04  237.00  -59.80  147.48
    3.00  -75.19  252.00  -63.43  153.88
    4.00  -77.78  267.00  -67.57  157.60
    5.00  -78.56  282.00  -70.33  162.43
    6.00  -77.88  297.00  -72.41  170.27
    7.00  -77.21  312.00  -74.93  178.42
    8.00  -78.00  327.00  -78.34  180.02
    9.00  -77.77  342.00  -81.54  184.10
   10.00  -77.86  357.00  -84.84  180.22
   11.00  -77.67   12.00  -87.72  149.50
   12.00  -77.48   27.00  -86.68   73.12
   13.00  -77.29   42.00  -83.15   60.55
   14.00  -77.42   57.00  -79.48   63.48
   15.00  -77.05   72.00  -75.78   66.53
   16.00  -77.03   87.00  -72.45   72.60
   17.00  -75.87  102.00  -68.58   76.38
   18.00  -75.83  117.00  -65.93   83.71
   19.00  -76.20  132.00  -64.17   91.67
   20.00  -75.46  147.00  -61.87   98.37
   21.00  -73.44  162.00  -58.71  104.95
   22.00  -72.25  177.00  -56.81  113.06
   23.00  -71.20  192.00  -55.52  121.74
</PRE>


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