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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>
25 Sep 1997 14:05:52 yearsecs  23119552
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.60  220.00  -51.25  140.18
    1.00  -65.73  235.00  -52.85  150.31
    2.00  -66.61  250.00  -55.54  160.11
    3.00  -67.50  265.00  -58.57  169.73
    4.00  -67.20  280.00  -60.93  180.53
    5.00  -67.99  295.00  -64.65  190.23
    6.00  -68.08  310.00  -68.20  201.37
    7.00  -68.67  325.00  -72.43  212.85
    8.00  -69.99  340.00  -77.27  224.50
    9.00  -70.21  355.00  -81.09  245.51
   10.00  -69.63   10.00  -83.06  285.69
   11.00  -69.14   25.00  -81.90  333.03
   12.00  -68.94   40.00  -78.40    4.16
   13.00  -69.01   55.00  -74.35   23.98
   14.00  -69.35   70.00  -70.54   39.31
   15.00  -69.95   85.00  -67.23   52.75
   16.00  -70.54  100.00  -64.30   64.57
   17.00  -70.60  115.00  -61.38   74.49
   18.00  -70.70  130.00  -59.09   83.95
   19.00  -69.97  145.00  -56.59   92.55
   20.00  -69.06  160.00  -54.43  101.40
   21.00  -68.27  175.00  -52.87  110.70
   22.00  -67.67  190.00  -51.99  120.26
   23.00  -66.78  205.00  -51.44  130.01
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.60  220.00  -56.01  138.66
    1.00  -71.78  235.00  -58.43  147.13
    2.00  -72.59  250.00  -60.89  155.41
    3.00  -78.16  265.00  -67.60  156.04
    4.00  -80.08  280.00  -71.04  157.88
    5.00  -80.50  295.00  -73.46  161.34
    6.00  -79.83  310.00  -75.63  167.65
    7.00  -79.14  325.00  -78.20  173.80
    8.00  -78.90  340.00  -81.14  176.15
    9.00  -78.89  355.00  -84.09  170.85
   10.00  -78.65   10.00  -86.60  147.08
   11.00  -78.70   25.00  -86.19   94.35
   12.00  -78.94   40.00  -83.35   76.53
   13.00  -78.74   55.00  -80.16   71.53
   14.00  -78.54   70.00  -76.84   72.62
   15.00  -78.34   85.00  -73.64   76.25
   16.00  -78.14  100.00  -70.68   81.17
   17.00  -77.93  115.00  -68.05   86.81
   18.00  -79.02  130.00  -67.01   95.11
   19.00  -79.29  145.00  -65.76  101.73
   20.00  -78.49  160.00  -63.89  107.43
   21.00  -76.63  175.00  -61.32  113.49
   22.00  -73.73  190.00  -58.08  120.77
   23.00  -71.93  205.00  -56.50  129.40
</PRE>


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