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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>
28 Dec 1997 13:36:04 yearsecs  31239364
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.69  221.90  -50.55  141.72
    1.00  -64.94  236.90  -52.34  151.99
    2.00  -65.98  251.90  -55.24  161.85
    3.00  -67.04  266.90  -58.48  171.47
    4.00  -66.92  281.90  -61.05  182.21
    5.00  -67.93  296.90  -65.02  191.69
    6.00  -68.29  311.90  -68.84  202.47
    7.00  -69.20  326.90  -73.33  213.28
    8.00  -70.96  341.90  -78.47  223.15
    9.00  -70.61  356.90  -81.85  247.38
   10.00  -69.75   11.90  -83.32  291.62
   11.00  -69.03   26.90  -81.47  337.77
   12.00  -68.64   41.90  -77.59    6.18
   13.00  -68.55   56.90  -73.35   24.72
   14.00  -68.77   71.90  -69.46   39.52
   15.00  -69.27   86.90  -66.12   52.77
   16.00  -69.79  101.90  -63.18   64.59
   17.00  -69.77  116.90  -60.23   74.61
   18.00  -69.80  131.90  -57.93   84.22
   19.00  -68.98  146.90  -55.40   93.01
   20.00  -67.97  161.90  -53.20  102.09
   21.00  -67.21  176.90  -51.73  111.65
   22.00  -66.65  191.90  -50.98  121.43
   23.00  -65.81  206.90  -50.58  131.36
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.48  221.90  -57.96  139.07
    1.00  -73.70  236.90  -60.41  146.96
    2.00  -74.59  251.90  -62.89  154.49
    3.00  -79.63  266.90  -68.99  154.06
    4.00  -81.42  281.90  -72.11  154.80
    5.00  -81.88  296.90  -74.32  156.93
    6.00  -81.20  311.90  -76.32  162.17
    7.00  -80.20  326.90  -78.68  168.37
    8.00  -80.15  341.90  -81.32  167.08
    9.00  -80.05  356.90  -83.80  158.80
   10.00  -79.74   11.90  -85.66  135.15
   11.00  -79.70   26.90  -85.10   98.94
   12.00  -79.85   41.90  -82.65   82.96
   13.00  -79.59   56.90  -79.78   76.85
   14.00  -79.34   71.90  -76.70   76.75
   15.00  -79.08   86.90  -73.66   79.49
   16.00  -78.83  101.90  -70.83   83.76
   17.00  -78.58  116.90  -68.30   88.94
   18.00  -79.66  131.90  -67.37   96.97
   19.00  -79.98  146.90  -66.26  103.40
   20.00  -79.29  161.90  -64.59  108.95
   21.00  -77.65  176.90  -62.29  114.84
   22.00  -75.08  191.90  -59.44  121.91
   23.00  -73.55  206.90  -58.18  130.22
</PRE>


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