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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>
22 May 1997 21:02:36 yearsecs  12258156
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.72  110.60  -56.25   63.99
    1.00  -65.23  125.60  -54.17   75.68
    2.00  -66.23  140.60  -53.24   86.93
    3.00  -67.24  155.60  -52.90   97.60
    4.00  -67.09  170.60  -51.85  107.46
    5.00  -68.05  185.60  -52.39  117.47
    6.00  -68.38  200.60  -52.85  127.05
    7.00  -69.27  215.60  -54.43  136.34
    8.00  -71.06  230.60  -57.33  144.89
    9.00  -72.60  245.60  -60.35  152.81
   10.00  -71.80  260.60  -61.64  162.54
   11.00  -70.59  275.60  -63.03  173.35
   12.00  -69.89  290.60  -65.31  184.21
   13.00  -69.59  305.60  -68.38  195.17
   14.00  -69.66  320.60  -72.09  206.63
   15.00  -70.05  335.60  -76.20  219.44
   16.00  -70.49  350.60  -80.29  236.77
   17.00  -70.43    5.60  -83.36  269.54
   18.00  -70.42   20.60  -83.87  322.19
   19.00  -69.61   35.60  -80.21  358.77
   20.00  -68.61   50.60  -75.17   17.78
   21.00  -67.65   65.60  -70.01   31.18
   22.00  -67.02   80.60  -65.42   43.26
   23.00  -66.10   95.60  -60.87   54.04
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.72  110.60  -61.33   70.38
    1.00  -70.97  125.60  -59.99   81.56
    2.00  -71.83  140.60  -58.92   91.44
    3.00  -77.65  155.60  -63.35  104.67
    4.00  -79.67  170.60  -64.56  112.99
    5.00  -80.12  185.60  -64.65  119.59
    6.00  -79.43  200.60  -63.97  126.05
    7.00  -78.40  215.60  -63.38  133.16
    8.00  -78.50  230.60  -64.37  140.02
    9.00  -78.45  245.60  -65.61  146.90
   10.00  -78.28  260.60  -67.14  153.88
   11.00  -78.31  275.60  -69.19  160.35
   12.00  -78.55  290.60  -71.70  165.85
   13.00  -78.32  305.60  -74.22  172.07
   14.00  -78.10  320.60  -77.05  177.80
   15.00  -77.87  335.60  -80.15  182.59
   16.00  -77.65  350.60  -83.46  184.85
   17.00  -77.42    5.60  -86.83  176.00
   18.00  -78.55   20.60  -86.83  106.52
   19.00  -78.82   35.60  -84.28   78.63
   20.00  -77.97   50.60  -81.10   66.09
   21.00  -76.01   65.60  -76.80   59.27
   22.00  -72.97   80.60  -70.98   57.05
   23.00  -71.10   95.60  -65.80   62.64
</PRE>


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