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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>
09 Apr 1997 12:56:44 yearsecs   8513804
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.88  240.01  -51.75  154.68
    1.00  -65.01  255.01  -54.82  164.71
    2.00  -65.79  270.01  -57.89  174.86
    3.00  -67.75  285.01  -62.37  183.41
    4.00  -67.32  300.01  -65.20  194.96
    5.00  -67.92  315.01  -69.31  205.73
    6.00  -67.78  330.01  -72.98  219.83
    7.00  -68.18  345.01  -77.06  236.63
    8.00  -68.91    0.01  -80.96  260.84
    9.00  -69.19   15.01  -82.78  302.55
   10.00  -68.96   30.01  -80.80  345.10
   11.00  -68.77   45.01  -76.89   11.09
   12.00  -68.81   60.01  -72.74   28.62
   13.00  -69.07   75.01  -68.93   42.87
   14.00  -69.55   90.01  -65.63   55.66
   15.00  -70.26  105.01  -62.97   67.45
   16.00  -70.96  120.01  -60.86   78.11
   17.00  -71.20  135.01  -58.93   87.51
   18.00  -71.31  150.01  -57.46   96.59
   19.00  -70.69  165.01  -55.77  105.30
   20.00  -69.86  180.01  -54.31  114.26
   21.00  -69.05  195.01  -53.40  123.52
   22.00  -67.37  210.01  -52.25  133.19
   23.00  -65.36  225.01  -51.47  143.64
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.88  240.01  -56.32  152.00
    1.00  -70.01  255.01  -59.27  160.80
    2.00  -70.79  270.01  -62.24  169.54
    3.00  -76.64  285.01  -69.49  168.21
    4.00  -78.73  300.01  -73.41  168.75
    5.00  -79.08  315.01  -76.29  171.99
    6.00  -78.21  330.01  -79.02  179.60
    7.00  -77.33  345.01  -82.18  187.72
    8.00  -77.58    0.01  -85.57  181.33
    9.00  -77.64   15.01  -87.98  131.88
   10.00  -77.54   30.01  -85.99   69.33
   11.00  -77.64   45.01  -82.42   63.46
   12.00  -77.96   60.01  -78.90   67.36
   13.00  -77.81   75.01  -75.46   70.82
   14.00  -77.69   90.01  -72.25   75.91
   15.00  -77.52  105.01  -69.34   81.65
   16.00  -77.43  120.01  -66.89   88.01
   17.00  -77.25  135.01  -64.82   94.57
   18.00  -78.31  150.01  -64.41  102.74
   19.00  -78.45  165.01  -63.58  109.69
   20.00  -77.50  180.01  -62.06  116.29
   21.00  -75.44  195.01  -59.82  123.58
   22.00  -72.37  210.01  -57.14  132.23
   23.00  -70.36  225.01  -56.18  141.81
</PRE>


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