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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>
01 Aug 1997 23:31:56 yearsecs  18401516
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.88   76.96  -59.24   29.95
    1.00  -61.51   91.96  -56.61   44.45
    2.00  -62.15  106.96  -54.22   58.14
    3.00  -62.78  121.96  -52.18   70.76
    4.00  -62.05  136.96  -49.32   81.48
    5.00  -63.17  151.96  -49.03   93.00
    6.00  -64.01  166.96  -48.91  103.96
    7.00  -64.38  181.96  -48.77  114.48
    8.00  -64.86  196.96  -49.28  124.75
    9.00  -64.32  211.96  -49.42  134.99
   10.00  -63.90  226.96  -50.29  145.47
   11.00  -63.71  241.96  -51.83  156.16
   12.00  -63.75  256.96  -53.96  167.00
   13.00  -64.00  271.96  -56.64  177.91
   14.00  -64.49  286.96  -59.90  188.79
   15.00  -65.19  301.96  -63.80  199.61
   16.00  -66.12  316.96  -68.27  210.75
   17.00  -67.28  331.96  -73.06  223.03
   18.00  -67.27  346.96  -76.72  241.98
   19.00  -66.62    1.96  -79.03  271.22
   20.00  -65.12   16.96  -78.19  309.02
   21.00  -64.02   31.96  -74.77  340.30
   22.00  -62.59   46.96  -69.26    0.95
   23.00  -61.43   61.96  -63.70   16.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.24   76.96  -72.10   55.46
    1.00  -74.03   91.96  -69.17   66.74
    2.00  -74.92  106.96  -66.86   76.91
    3.00  -75.72  121.96  -65.08   85.99
    4.00  -77.73  136.96  -65.06   96.13
    5.00  -78.75  151.96  -64.69  104.08
    6.00  -78.63  166.96  -63.66  110.70
    7.00  -78.32  181.96  -62.86  117.47
    8.00  -78.75  196.96  -63.22  124.47
    9.00  -78.62  211.96  -63.44  131.39
   10.00  -78.46  226.96  -64.07  138.38
   11.00  -78.16  241.96  -65.00  145.58
   12.00  -77.82  256.96  -66.31  152.94
   13.00  -77.68  271.96  -68.19  160.04
   14.00  -77.60  286.96  -70.48  166.85
   15.00  -77.13  301.96  -72.90  174.55
   16.00  -76.97  316.96  -75.85  181.31
   17.00  -75.78  331.96  -78.71  193.10
   18.00  -75.56  346.96  -82.30  202.09
   19.00  -76.01    1.96  -86.24  204.07
   20.00  -75.54   16.96  -89.64  345.76
   21.00  -74.08   31.96  -84.96   20.08
   22.00  -73.80   46.96  -80.59   35.77
   23.00  -72.96   61.96  -75.84   44.00
</PRE>


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