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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>
31 Jul 1997 11:58:34 yearsecs  18273514
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.61  255.32  -47.99  169.43
    1.00  -58.07  270.32  -50.93  181.21
    2.00  -58.52  285.32  -54.12  193.25
    3.00  -58.97  300.32  -57.70  205.62
    4.00  -58.99  315.32  -61.29  219.25
    5.00  -59.84  330.32  -65.83  233.81
    6.00  -61.59  345.32  -70.99  250.53
    7.00  -62.76    0.32  -74.84  274.02
    8.00  -62.85   15.32  -75.69  305.72
    9.00  -62.21   30.32  -72.94  335.70
   10.00  -61.79   45.32  -68.69  357.79
   11.00  -61.59   60.32  -64.35   14.71
   12.00  -61.62   75.32  -60.57   29.47
   13.00  -61.88   90.32  -57.40   43.48
   14.00  -62.35  105.32  -54.77   57.00
   15.00  -63.06  120.32  -52.75   69.75
   16.00  -63.98  135.32  -51.54   81.63
   17.00  -65.14  150.32  -51.18   92.89
   18.00  -65.30  165.32  -50.31  103.28
   19.00  -64.11  180.32  -48.52  113.30
   20.00  -62.47  195.32  -46.88  123.59
   21.00  -61.29  210.32  -46.39  134.30
   22.00  -59.53  225.32  -45.96  145.63
   23.00  -58.43  240.32  -46.63  157.35
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -75.11  255.32  -63.79  155.74
    1.00  -75.95  270.32  -66.59  162.36
    2.00  -76.81  285.32  -69.66  167.97
    3.00  -77.40  300.32  -72.74  173.04
    4.00  -78.36  315.32  -76.09  175.09
    5.00  -79.09  330.32  -79.22  174.74
    6.00  -79.11  345.32  -82.17  173.74
    7.00  -78.29    0.32  -85.36  172.00
    8.00  -78.27   15.32  -87.33  128.27
    9.00  -78.36   30.32  -85.54   79.80
   10.00  -77.90   45.32  -82.35   65.68
   11.00  -77.53   60.32  -78.71   64.96
   12.00  -77.24   75.32  -75.11   68.60
   13.00  -77.02   90.32  -71.75   74.00
   14.00  -76.91  105.32  -68.80   80.34
   15.00  -76.61  120.32  -66.12   86.68
   16.00  -76.74  135.32  -64.30   94.02
   17.00  -76.73  150.32  -62.83  101.27
   18.00  -76.53  165.32  -61.63  108.57
   19.00  -76.12  180.32  -60.65  116.02
   20.00  -75.91  195.32  -60.31  123.74
   21.00  -75.25  210.32  -60.00  131.69
   22.00  -75.41  225.32  -61.02  139.55
   23.00  -74.79  240.32  -61.75  148.00
</PRE>


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