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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>
27 Jul 1997 12:47:14 yearsecs  17930834
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.90  244.88  -52.38  158.15
    1.00  -63.80  259.88  -54.46  169.10
    2.00  -64.64  274.88  -57.73  179.50
    3.00  -65.48  289.88  -61.38  189.84
    4.00  -65.25  304.88  -64.54  201.89
    5.00  -66.36  319.88  -69.22  212.96
    6.00  -66.59  334.88  -73.20  227.84
    7.00  -66.45  349.88  -76.63  248.58
    8.00  -67.13    4.88  -79.93  276.94
    9.00  -66.65   19.88  -79.72  316.45
   10.00  -66.24   34.88  -76.72  348.75
   11.00  -66.05   49.88  -72.61   10.59
   12.00  -66.08   64.88  -68.52   27.08
   13.00  -66.34   79.88  -64.89   41.37
   14.00  -66.83   94.88  -61.78   54.58
   15.00  -67.53  109.88  -59.29   66.91
   16.00  -68.46  124.88  -57.59   78.34
   17.00  -69.51  139.88  -56.66   88.97
   18.00  -69.40  154.88  -55.14   98.33
   19.00  -68.79  169.88  -53.60  107.57
   20.00  -67.62  184.88  -51.97  116.94
   21.00  -66.57  199.88  -51.04  126.66
   22.00  -65.52  214.88  -50.78  136.74
   23.00  -64.37  229.88  -51.03  147.34
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.90  244.88  -56.93  155.14
    1.00  -70.04  259.88  -60.00  163.89
    2.00  -71.07  274.88  -63.31  172.25
    3.00  -73.99  289.88  -68.43  176.37
    4.00  -76.72  304.88  -73.23  177.07
    5.00  -77.39  319.88  -76.64  180.67
    6.00  -76.55  334.88  -79.67  190.25
    7.00  -75.94  349.88  -83.14  200.39
    8.00  -76.87    4.88  -86.89  187.20
    9.00  -76.64   19.88  -88.65   79.14
   10.00  -76.91   34.88  -84.95   57.39
   11.00  -76.72   49.88  -81.07   57.03
   12.00  -76.63   64.88  -77.28   61.85
   13.00  -76.44   79.88  -73.63   67.51
   14.00  -76.57   94.88  -70.51   74.73
   15.00  -76.21  109.88  -67.44   80.96
   16.00  -76.30  124.88  -65.19   88.34
   17.00  -75.31  139.88  -62.43   94.54
   18.00  -75.40  154.88  -61.17  102.42
   19.00  -75.51  169.88  -60.38  110.35
   20.00  -74.54  184.88  -58.94  118.06
   21.00  -72.28  199.88  -56.71  126.38
   22.00  -70.72  214.88  -55.78  135.52
   23.00  -69.37  229.88  -55.69  145.26
</PRE>


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