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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>
11 May 1997 11:30:20 yearsecs  11273420
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.19  259.36  -52.00  170.49
    1.00  -61.80  274.36  -55.09  181.63
    2.00  -62.43  289.36  -58.53  192.90
    3.00  -63.04  304.36  -62.43  204.48
    4.00  -62.39  319.36  -65.53  218.90
    5.00  -63.54  334.36  -70.35  233.12
    6.00  -64.30  349.36  -74.48  252.26
    7.00  -64.59    4.36  -77.23  279.92
    8.00  -65.18   19.36  -78.09  314.77
    9.00  -64.54   34.36  -74.86  345.17
   10.00  -64.13   49.36  -70.49    6.32
   11.00  -63.94   64.36  -66.18   22.54
   12.00  -63.97   79.36  -62.39   36.80
   13.00  -64.23   94.36  -59.15   50.25
   14.00  -64.71  109.36  -56.49   63.02
   15.00  -65.42  124.36  -54.56   74.96
   16.00  -66.35  139.36  -53.50   86.18
   17.00  -67.33  154.36  -53.08   96.83
   18.00  -67.02  169.36  -51.84  106.62
   19.00  -66.84  184.36  -51.20  116.49
   20.00  -65.38  199.36  -49.85  126.36
   21.00  -64.27  214.36  -49.55  136.65
   22.00  -62.89  229.36  -49.58  147.51
   23.00  -61.72  244.36  -50.29  158.90
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.95  259.36  -58.08  165.47
    1.00  -68.83  274.36  -61.31  174.71
    2.00  -69.79  289.36  -64.98  183.52
    3.00  -70.66  304.36  -68.95  192.18
    4.00  -73.28  319.36  -74.36  195.66
    5.00  -74.32  334.36  -78.63  201.60
    6.00  -74.23  349.36  -82.40  213.77
    7.00  -73.66    4.36  -85.92  242.76
    8.00  -74.72   19.36  -88.50  344.71
    9.00  -74.71   34.36  -84.63   30.32
   10.00  -74.73   49.36  -80.45   43.40
   11.00  -74.54   64.36  -76.28   52.10
   12.00  -74.25   79.36  -72.28   60.03
   13.00  -74.21   94.36  -68.79   68.53
   14.00  -74.29  109.36  -65.86   76.99
   15.00  -73.84  124.36  -62.97   84.47
   16.00  -73.76  139.36  -60.96   92.60
   17.00  -72.33  154.36  -58.13   99.87
   18.00  -72.02  169.36  -56.88  108.49
   19.00  -72.58  184.36  -56.97  117.42
   20.00  -71.86  199.36  -56.27  126.10
   21.00  -69.77  214.36  -54.83  135.45
   22.00  -69.14  229.36  -55.42  145.05
   23.00  -67.88  244.36  -55.94  155.46
</PRE>


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