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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 Apr 1997 12:39:39 yearsecs  10067979
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.94  243.86  -49.50  158.91
    1.00  -62.37  258.86  -53.00  169.34
    2.00  -63.34  273.86  -56.38  179.94
    3.00  -66.84  288.86  -62.36  187.37
    4.00  -67.08  303.86  -65.89  198.29
    5.00  -68.56  318.86  -70.79  207.66
    6.00  -69.62  333.86  -75.43  218.94
    7.00  -70.99  348.86  -80.25  231.94
    8.00  -70.24    3.86  -82.90  265.41
    9.00  -69.56   18.86  -83.06  315.18
   10.00  -68.58   33.86  -79.55  352.16
   11.00  -67.76   48.86  -74.77   13.33
   12.00  -67.30   63.86  -70.12   28.70
   13.00  -67.17   78.86  -66.02   42.07
   14.00  -67.37   93.86  -62.57   54.67
   15.00  -67.88  108.86  -59.85   66.64
   16.00  -68.42  123.86  -57.71   77.61
   17.00  -68.38  138.86  -55.63   87.41
   18.00  -68.39  153.86  -54.20   97.10
   19.00  -67.56  168.86  -52.41  106.48
   20.00  -66.78  183.86  -51.14  116.15
   21.00  -66.08  198.86  -50.53  126.01
   22.00  -64.89  213.86  -50.11  136.19
   23.00  -62.64  228.86  -49.29  147.24
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.94  243.86  -54.12  156.29
    1.00  -67.37  258.86  -57.50  165.62
    2.00  -68.34  273.86  -60.79  174.95
    3.00  -75.23  288.86  -69.16  173.22
    4.00  -77.60  303.86  -73.52  173.85
    5.00  -77.81  318.86  -76.60  178.53
    6.00  -77.26  333.86  -79.64  185.86
    7.00  -76.02  348.86  -82.91  199.32
    8.00  -76.14    3.86  -86.74  201.94
    9.00  -76.16   18.86  -89.16   64.45
   10.00  -75.89   33.86  -85.15   44.15
   11.00  -75.98   48.86  -81.12   51.42
   12.00  -76.31   63.86  -77.38   59.87
   13.00  -76.08   78.86  -73.64   65.79
   14.00  -75.85   93.86  -70.19   72.36
   15.00  -75.63  108.86  -67.11   79.28
   16.00  -75.40  123.86  -64.50   86.45
   17.00  -75.16  138.86  -62.38   93.84
   18.00  -76.49  153.86  -62.32  102.81
   19.00  -76.82  168.86  -61.75  110.51
   20.00  -75.81  183.86  -60.25  117.77
   21.00  -73.50  198.86  -57.91  125.72
   22.00  -69.89  213.86  -54.92  135.11
   23.00  -67.64  228.86  -53.97  145.37
</PRE>


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