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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>
16 Mar 1997 21:11:21 yearsecs   6469881
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.17  115.65  -54.73   67.26
    1.00  -63.90  130.65  -52.06   78.19
    2.00  -64.79  145.65  -51.25   89.45
    3.00  -65.68  160.65  -50.97  100.24
    4.00  -65.46  175.65  -50.01  110.39
    5.00  -66.54  190.65  -50.86  120.60
    6.00  -66.74  205.65  -51.43  130.43
    7.00  -66.60  220.65  -52.25  140.33
    8.00  -67.28  235.65  -54.35  150.01
    9.00  -66.83  250.65  -55.83  160.40
   10.00  -66.42  265.65  -57.73  171.16
   11.00  -66.23  280.65  -60.20  182.11
   12.00  -66.26  295.65  -63.31  193.20
   13.00  -66.52  310.65  -67.04  204.65
   14.00  -67.00  325.65  -71.23  217.17
   15.00  -67.71  340.65  -75.59  232.12
   16.00  -68.64  355.65  -79.86  252.65
   17.00  -69.67   10.65  -83.15  287.68
   18.00  -69.53   25.65  -82.22  335.73
   19.00  -68.94   40.65  -78.23    5.18
   20.00  -67.80   55.65  -72.92   21.39
   21.00  -66.76   70.65  -67.72   33.96
   22.00  -65.72   85.65  -62.80   45.22
   23.00  -64.77  100.65  -58.35   56.18
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.92  115.65  -63.48   78.22
    1.00  -73.86  130.65  -62.11   87.93
    2.00  -74.79  145.65  -61.33   97.02
    3.00  -77.47  160.65  -62.83  106.92
    4.00  -79.67  175.65  -64.39  115.16
    5.00  -80.23  190.65  -64.72  121.74
    6.00  -79.66  205.65  -64.30  128.22
    7.00  -79.14  220.65  -64.36  135.06
    8.00  -79.73  235.65  -65.91  141.09
    9.00  -79.46  250.65  -67.00  147.75
   10.00  -79.61  265.65  -68.81  153.61
   11.00  -79.39  280.65  -70.68  159.87
   12.00  -79.44  295.65  -73.04  164.99
   13.00  -79.39  310.65  -75.59  169.61
   14.00  -79.37  325.65  -78.36  172.68
   15.00  -79.02  340.65  -81.26  175.24
   16.00  -79.05  355.65  -84.14  168.82
   17.00  -78.28   10.65  -87.01  148.29
   18.00  -78.33   25.65  -86.39   88.63
   19.00  -78.33   40.65  -83.37   70.59
   20.00  -77.53   55.65  -79.83   63.86
   21.00  -75.73   70.65  -75.40   60.52
   22.00  -74.43   85.65  -70.91   64.16
   23.00  -73.33  100.65  -66.71   70.22
</PRE>


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