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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>
23 Oct 1997 11:48:56 yearsecs  25530536
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.90  248.39  -50.08  162.33
    1.00  -62.14  263.39  -53.52  172.91
    2.00  -62.93  278.39  -56.84  183.78
    3.00  -67.68  293.39  -64.04  189.51
    4.00  -67.34  308.39  -67.19  201.42
    5.00  -68.06  323.39  -71.53  212.76
    6.00  -68.08  338.39  -75.34  228.34
    7.00  -68.58  353.39  -79.33  248.65
    8.00  -69.28    8.39  -82.55  281.55
    9.00  -69.45   23.39  -82.48  329.13
   10.00  -69.11   38.39  -78.99    2.03
   11.00  -68.80   53.39  -74.58   21.57
   12.00  -68.73   68.39  -70.37   36.35
   13.00  -68.91   83.39  -66.64   49.32
   14.00  -69.34   98.39  -63.50   61.36
   15.00  -70.01  113.39  -61.09   72.62
   16.00  -70.65  128.39  -59.27   82.91
   17.00  -70.75  143.39  -57.54   92.17
   18.00  -70.88  158.39  -56.38  101.37
   19.00  -70.20  173.39  -54.87  110.25
   20.00  -69.40  188.39  -53.72  119.40
   21.00  -68.63  203.39  -53.18  128.79
   22.00  -65.14  218.39  -50.68  139.20
   23.00  -62.76  233.39  -49.91  150.44
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.90  248.39  -54.68  159.46
    1.00  -67.14  263.39  -58.00  168.93
    2.00  -67.93  278.39  -61.26  178.54
    3.00  -74.81  293.39  -69.72  176.52
    4.00  -76.96  308.39  -74.07  177.80
    5.00  -77.78  323.39  -77.52  180.10
    6.00  -77.06  338.39  -80.62  188.34
    7.00  -75.91  353.39  -84.02  202.18
    8.00  -76.15    8.39  -87.91  200.20
    9.00  -76.27   23.39  -87.99   52.81
   10.00  -76.09   38.39  -83.96   48.16
   11.00  -76.26   53.39  -80.03   55.23
   12.00  -76.66   68.39  -76.44   63.44
   13.00  -76.52   83.39  -72.90   69.37
   14.00  -76.37   98.39  -69.67   75.86
   15.00  -76.22  113.39  -66.85   82.67
   16.00  -76.07  128.39  -64.51   89.71
   17.00  -75.76  143.39  -62.50   96.83
   18.00  -76.97  158.39  -62.48  105.44
   19.00  -77.22  173.39  -61.97  112.94
   20.00  -76.16  188.39  -60.56  120.17
   21.00  -73.81  203.39  -58.33  128.22
   22.00  -70.14  218.39  -55.46  137.82
   23.00  -67.76  233.39  -54.55  148.28
</PRE>


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