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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>
18 Jul 1997 17:58:08 yearsecs  17171888
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.37  162.11  -48.52  100.31
    1.00  -63.56  177.11  -48.05  110.95
    2.00  -64.25  192.11  -48.59  121.44
    3.00  -64.94  207.11  -49.74  131.61
    4.00  -64.69  222.11  -50.57  141.87
    5.00  -65.90  237.11  -53.26  151.67
    6.00  -66.20  252.11  -55.47  161.85
    7.00  -66.08  267.11  -57.66  172.51
    8.00  -66.79  282.11  -60.97  182.53
    9.00  -66.28  297.11  -63.65  194.29
   10.00  -65.83  312.11  -66.81  207.03
   11.00  -65.62  327.11  -70.41  221.38
   12.00  -65.64  342.11  -74.13  238.94
   13.00  -65.89  357.11  -77.53  262.68
   14.00  -66.37   12.11  -79.64  296.32
   15.00  -67.07   27.11  -79.25  334.49
   16.00  -67.99   42.11  -76.85    4.67
   17.00  -69.09   57.11  -73.83   26.44
   18.00  -69.05   72.11  -69.68   40.38
   19.00  -68.20   87.11  -65.01   50.85
   20.00  -67.15  102.11  -60.50   60.66
   21.00  -66.07  117.11  -56.45   70.40
   22.00  -64.96  132.11  -52.96   80.09
   23.00  -63.88  147.11  -50.17   89.94
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.08  162.11  -57.34  104.26
    1.00  -73.20  177.11  -57.77  113.41
    2.00  -74.18  192.11  -58.54  121.98
    3.00  -75.99  207.11  -60.63  129.82
    4.00  -78.49  222.11  -63.80  136.13
    5.00  -79.30  237.11  -65.62  142.17
    6.00  -78.71  252.11  -66.51  149.47
    7.00  -78.12  267.11  -67.85  157.05
    8.00  -78.94  282.11  -70.60  161.54
    9.00  -78.66  297.11  -72.87  167.93
   10.00  -78.74  312.11  -75.62  172.59
   11.00  -78.57  327.11  -78.50  177.09
   12.00  -78.31  342.11  -81.58  180.19
   13.00  -78.11  357.11  -84.79  177.32
   14.00  -78.20   12.11  -87.23  143.30
   15.00  -77.81   27.11  -86.48   78.05
   16.00  -77.72   42.11  -83.11   64.52
   17.00  -76.50   57.11  -79.16   58.09
   18.00  -76.38   72.11  -75.41   63.82
   19.00  -76.54   87.11  -72.10   71.13
   20.00  -76.11  102.11  -68.76   77.01
   21.00  -74.20  117.11  -64.43   81.04
   22.00  -73.19  132.11  -61.27   87.94
   23.00  -72.28  147.11  -58.70   95.63
</PRE>


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