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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>
21 Sep 1997 11:33:20 yearsecs  22764800
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.24  256.60  -47.83  170.65
    1.00  -57.49  271.60  -50.61  182.65
    2.00  -57.71  286.60  -53.61  195.01
    3.00  -57.90  301.60  -56.97  207.80
    4.00  -58.07  316.60  -60.71  221.51
    5.00  -58.63  331.60  -64.94  236.74
    6.00  -60.36  346.60  -70.03  254.03
    7.00  -61.20    1.60  -73.36  278.27
    8.00  -61.47   16.60  -74.04  308.78
    9.00  -61.12   31.60  -71.32  337.10
   10.00  -60.95   46.60  -67.25  358.38
   11.00  -60.96   61.60  -63.19   15.14
   12.00  -61.15   76.60  -59.68   30.01
   13.00  -61.55   91.60  -56.74   44.19
   14.00  -62.14  106.60  -54.28   57.83
   15.00  -62.94  121.60  -52.41   70.63
   16.00  -63.93  136.60  -51.33   82.51
   17.00  -65.14  151.60  -51.07   93.77
   18.00  -65.43  166.60  -50.36  104.21
   19.00  -64.13  181.60  -48.51  114.19
   20.00  -62.49  196.60  -46.93  124.50
   21.00  -61.26  211.60  -46.44  135.23
   22.00  -59.38  226.60  -45.94  146.63
   23.00  -58.23  241.60  -46.60  158.42
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.06  256.60  -61.29  159.85
    1.00  -72.93  271.60  -64.32  167.71
    2.00  -73.76  286.60  -67.63  175.00
    3.00  -74.19  301.60  -70.95  182.50
    4.00  -74.99  316.60  -74.75  188.40
    5.00  -76.09  331.60  -78.75  191.37
    6.00  -76.38  346.60  -82.43  195.53
    7.00  -75.47    1.60  -86.07  212.38
    8.00  -75.47   16.60  -89.63  326.87
    9.00  -75.81   31.60  -85.76   42.15
   10.00  -75.35   46.60  -81.49   45.77
   11.00  -75.04   61.60  -77.30   52.70
   12.00  -74.85   76.60  -73.38   60.40
   13.00  -74.69   91.60  -69.78   68.19
   14.00  -74.71  106.60  -66.74   76.31
   15.00  -74.56  121.60  -64.05   84.00
   16.00  -74.90  136.60  -62.38   92.36
   17.00  -75.10  151.60  -61.12  100.45
   18.00  -74.73  166.60  -59.74  108.20
   19.00  -73.81  181.60  -58.27  116.10
   20.00  -73.48  196.60  -57.86  124.46
   21.00  -72.72  211.60  -57.56  133.07
   22.00  -72.82  226.60  -58.64  141.64
   23.00  -71.95  241.60  -59.30  150.96
</PRE>


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