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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>
21 Dec 1997 11:38:50 yearsecs  30627530
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.50  251.11  -51.96  163.48
    1.00  -63.60  266.11  -55.28  173.87
    2.00  -64.64  281.11  -58.88  184.17
    3.00  -66.24  296.11  -63.39  193.58
    4.00  -66.05  311.11  -66.75  205.81
    5.00  -67.03  326.11  -71.37  217.55
    6.00  -67.17  341.11  -75.25  234.08
    7.00  -67.07  356.11  -78.49  258.04
    8.00  -67.69   11.11  -81.05  292.27
    9.00  -67.32   26.11  -79.70  332.53
   10.00  -66.90   41.11  -75.93    0.43
   11.00  -66.71   56.11  -71.62   19.31
   12.00  -66.75   71.11  -67.58   34.36
   13.00  -67.00   86.11  -64.04   47.83
   14.00  -67.49  101.11  -61.06   60.40
   15.00  -68.19  116.11  -58.79   72.12
   16.00  -69.13  131.11  -57.36   83.06
   17.00  -70.10  146.11  -56.61   93.33
   18.00  -69.89  161.11  -55.20  102.51
   19.00  -69.35  176.11  -53.91  111.70
   20.00  -68.28  191.11  -52.60  121.02
   21.00  -67.03  206.11  -51.73  130.70
   22.00  -64.93  221.11  -50.71  141.11
   23.00  -63.22  236.11  -50.65  152.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.50  251.11  -56.49  160.24
    1.00  -68.60  266.11  -59.71  169.41
    2.00  -69.64  281.11  -63.23  178.22
    3.00  -73.95  296.11  -69.64  179.96
    4.00  -76.40  311.11  -74.33  180.90
    5.00  -77.24  326.11  -77.92  183.51
    6.00  -76.60  341.11  -81.15  192.12
    7.00  -76.08  356.11  -84.74  201.46
    8.00  -76.81   11.11  -88.30  171.93
    9.00  -76.58   26.11  -87.22   57.14
   10.00  -76.93   41.11  -83.36   57.12
   11.00  -76.67   56.11  -79.47   58.72
   12.00  -76.75   71.11  -75.84   64.93
   13.00  -76.51   86.11  -72.30   70.57
   14.00  -76.57  101.11  -69.30   77.61
   15.00  -76.24  116.11  -66.43   84.01
   16.00  -76.47  131.11  -64.54   91.62
   17.00  -75.84  146.11  -62.32   98.29
   18.00  -76.01  161.11  -61.34  106.09
   19.00  -75.62  176.11  -60.25  113.66
   20.00  -74.40  191.11  -58.76  121.44
   21.00  -72.03  206.11  -56.64  130.03
   22.00  -69.93  221.11  -55.45  139.57
   23.00  -68.22  236.11  -55.27  149.83
</PRE>


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