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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
25 Mar 1997 14:18:36 yearsecs   7222716
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.57  220.95  -45.58  142.38
    1.00  -60.23  235.95  -47.81  153.32
    2.00  -60.89  250.95  -50.44  164.27
    3.00  -61.54  265.95  -53.39  175.31
    4.00  -60.71  280.95  -55.31  187.79
    5.00  -61.71  295.95  -59.28  199.04
    6.00  -62.89  310.95  -63.89  210.39
    7.00  -63.63  325.95  -68.34  223.64
    8.00  -63.76  340.95  -72.12  241.03
    9.00  -63.41  355.95  -74.85  264.94
   10.00  -62.99   10.95  -75.91  296.02
   11.00  -62.80   25.95  -74.48  328.02
   12.00  -62.84   40.95  -71.17  353.23
   13.00  -63.10   55.95  -67.43   12.31
   14.00  -63.58   70.95  -64.04   28.37
   15.00  -64.28   85.95  -61.15   43.14
   16.00  -65.22  100.95  -58.75   57.04
   17.00  -66.37  115.95  -56.96   69.89
   18.00  -66.37  130.95  -54.57   80.45
   19.00  -65.66  145.95  -52.10   90.20
   20.00  -64.07  160.95  -49.31   99.77
   21.00  -62.95  175.95  -47.47  110.00
   22.00  -61.36  190.95  -45.71  120.45
   23.00  -60.21  205.95  -45.08  131.27
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.50  220.95  -54.08  139.94
    1.00  -69.14  235.95  -56.10  149.24
    2.00  -70.05  250.95  -58.75  158.19
    3.00  -70.72  265.95  -61.53  167.05
    4.00  -72.70  280.95  -65.75  173.57
    5.00  -73.94  295.95  -69.60  179.91
    6.00  -73.86  310.95  -72.78  188.71
    7.00  -73.01  325.95  -75.79  201.07
    8.00  -73.41  340.95  -79.81  211.12
    9.00  -73.66  355.95  -83.82  225.99
   10.00  -73.50   10.95  -87.12  270.99
   11.00  -73.23   25.95  -85.87  356.17
   12.00  -73.01   40.95  -81.77   24.41
   13.00  -73.03   55.95  -77.56   39.54
   14.00  -72.98   70.95  -73.45   50.60
   15.00  -72.54   85.95  -69.32   59.39
   16.00  -72.55  100.95  -65.95   68.87
   17.00  -71.54  115.95  -62.12   76.39
   18.00  -71.40  130.95  -59.66   85.28
   19.00  -71.79  145.95  -58.32   94.55
   20.00  -71.31  160.95  -56.63  103.15
   21.00  -69.68  175.95  -54.25  111.69
   22.00  -69.46  190.95  -53.78  121.00
   23.00  -68.14  205.95  -52.80  130.47
</PRE>


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