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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>
24 May 1997 22:19:17 yearsecs  12435557
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.70   91.82  -53.27   40.85
    1.00  -59.29  106.82  -51.06   54.95
    2.00  -59.87  121.82  -49.10   68.15
    3.00  -60.43  136.82  -47.64   80.32
    4.00  -59.54  151.82  -45.28   91.17
    5.00  -60.37  166.82  -45.21  102.69
    6.00  -61.35  181.82  -45.73  113.88
    7.00  -61.84  196.82  -46.29  124.64
    8.00  -63.79  211.82  -48.90  134.98
    9.00  -64.00  226.82  -50.36  145.34
   10.00  -62.82  241.82  -50.98  156.50
   11.00  -62.45  256.82  -52.76  167.75
   12.00  -62.41  271.82  -55.18  179.16
   13.00  -62.64  286.82  -58.21  190.66
   14.00  -63.11  301.82  -61.90  202.25
   15.00  -63.83  316.82  -66.21  214.38
   16.00  -64.77  331.82  -70.84  228.03
   17.00  -65.95  346.82  -75.49  244.98
   18.00  -65.97    1.82  -78.35  272.19
   19.00  -65.19   16.82  -78.27  308.67
   20.00  -63.50   31.82  -74.19  339.49
   21.00  -62.30   46.82  -68.92    0.37
   22.00  -60.63   61.82  -62.70   14.91
   23.00  -59.42   76.82  -57.41   27.88
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.97   91.82  -66.54   59.79
    1.00  -71.64  106.82  -63.92   70.87
    2.00  -72.51  121.82  -62.08   81.22
    3.00  -73.16  136.82  -60.66   90.56
    4.00  -74.87  151.82  -60.87  100.37
    5.00  -76.00  166.82  -61.02  109.01
    6.00  -75.96  181.82  -60.45  116.75
    7.00  -75.75  196.82  -60.16  124.52
    8.00  -76.63  211.82  -61.44  132.04
    9.00  -76.71  226.82  -62.38  139.53
   10.00  -76.15  241.82  -63.15  147.57
   11.00  -75.71  256.82  -64.49  155.79
   12.00  -75.39  271.82  -66.37  164.06
   13.00  -75.28  286.82  -68.82  172.06
   14.00  -75.14  301.82  -71.64  180.16
   15.00  -74.69  316.82  -74.63  189.54
   16.00  -74.64  331.82  -78.16  198.45
   17.00  -73.77  346.82  -81.51  214.47
   18.00  -73.55    1.82  -85.24  237.59
   19.00  -73.68   16.82  -87.69  310.82
   20.00  -73.15   31.82  -84.37   10.82
   21.00  -71.78   46.82  -79.18   24.84
   22.00  -71.68   61.82  -74.88   39.17
   23.00  -70.59   76.82  -69.90   48.02
</PRE>


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