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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>
19 Apr 1997 14:18:35 yearsecs   9382715
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.05  221.83  -43.19  143.64
    1.00  -57.45  236.83  -45.22  155.05
    2.00  -57.84  251.83  -47.67  166.56
    3.00  -58.23  266.83  -50.47  178.27
    4.00  -58.46  281.83  -53.39  190.39
    5.00  -59.27  296.83  -57.20  202.31
    6.00  -61.15  311.83  -62.49  213.43
    7.00  -62.69  326.83  -67.69  226.04
    8.00  -62.35  341.83  -70.97  244.52
    9.00  -61.82  356.83  -73.37  268.72
   10.00  -61.40   11.83  -74.14  298.80
   11.00  -61.21   26.83  -72.41  328.86
   12.00  -61.25   41.83  -68.93  352.55
   13.00  -61.50   56.83  -65.18   10.89
   14.00  -61.99   71.83  -61.88   26.71
   15.00  -62.69   86.83  -59.14   41.53
   16.00  -63.63  101.83  -56.87   55.65
   17.00  -64.78  116.83  -55.16   68.81
   18.00  -64.99  131.83  -53.03   79.91
   19.00  -63.68  146.83  -49.99   89.62
   20.00  -62.02  161.83  -47.16   99.59
   21.00  -60.83  176.83  -45.30  110.16
   22.00  -59.01  191.83  -43.38  120.94
   23.00  -57.92  206.83  -42.88  132.12
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -75.64  221.83  -61.00  137.59
    1.00  -76.50  236.83  -62.99  144.72
    2.00  -77.33  251.83  -65.29  151.21
    3.00  -77.88  266.83  -67.63  157.35
    4.00  -78.70  281.83  -70.40  162.02
    5.00  -79.80  296.83  -73.41  164.19
    6.00  -80.21  311.83  -76.06  166.44
    7.00  -79.87  326.83  -78.64  170.15
    8.00  -79.64  341.83  -81.41  170.66
    9.00  -79.64  356.83  -84.04  162.31
   10.00  -79.10   11.83  -86.31  138.21
   11.00  -78.66   26.83  -85.95   89.71
   12.00  -78.33   41.83  -83.11   70.11
   13.00  -78.04   56.83  -79.66   67.23
   14.00  -77.88   71.83  -76.19   70.10
   15.00  -77.58   86.83  -72.83   74.32
   16.00  -77.69  101.83  -70.02   80.70
   17.00  -77.63  116.83  -67.52   86.99
   18.00  -77.22  131.83  -65.15   93.04
   19.00  -76.44  146.83  -62.85   99.27
   20.00  -76.26  161.83  -61.55  106.63
   21.00  -75.71  176.83  -60.32  114.08
   22.00  -75.92  191.83  -60.30  121.93
   23.00  -75.35  206.83  -59.98  129.82
</PRE>


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