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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>
17 May 1997 20:22:27 yearsecs  11823747
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.65  120.71  -51.18   68.78
    1.00  -62.22  135.71  -49.65   80.66
    2.00  -62.79  150.71  -48.74   91.91
    3.00  -63.35  165.71  -48.30  102.85
    4.00  -62.75  180.71  -47.15  113.32
    5.00  -63.86  195.71  -48.27  123.89
    6.00  -64.31  210.71  -49.34  134.14
    7.00  -63.84  225.71  -50.10  144.61
    8.00  -65.13  240.71  -52.98  154.55
    9.00  -66.26  255.71  -56.04  164.31
   10.00  -65.53  270.71  -57.79  175.60
   11.00  -64.94  285.71  -60.05  187.32
   12.00  -64.79  300.71  -63.15  199.17
   13.00  -64.94  315.71  -66.92  211.63
   14.00  -65.35  330.71  -71.08  225.72
   15.00  -66.00  345.71  -75.29  243.22
   16.00  -66.89    0.71  -79.11  267.89
   17.00  -68.01   15.71  -81.47  305.18
   18.00  -68.00   30.71  -79.62  344.21
   19.00  -67.32   45.71  -75.16    8.07
   20.00  -65.86   60.71  -69.40   22.41
   21.00  -64.69   75.71  -64.12   34.69
   22.00  -63.34   90.71  -58.99   45.86
   23.00  -62.16  105.71  -54.48   57.11
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.64  120.71  -61.41   79.41
    1.00  -72.61  135.71  -60.25   89.35
    2.00  -73.57  150.71  -59.67   98.71
    3.00  -74.50  165.71  -59.57  107.60
    4.00  -76.91  180.71  -61.44  116.45
    5.00  -77.98  195.71  -62.43  123.91
    6.00  -77.65  210.71  -62.42  131.15
    7.00  -77.62  225.71  -63.17  138.39
    8.00  -77.87  240.71  -64.62  145.30
    9.00  -77.36  255.71  -65.77  153.02
   10.00  -77.03  270.71  -67.51  160.67
   11.00  -77.02  285.71  -69.88  167.66
   12.00  -76.75  300.71  -72.43  175.14
   13.00  -76.65  315.71  -75.44  181.99
   14.00  -76.72  330.71  -78.77  187.74
   15.00  -76.30  345.71  -82.19  195.89
   16.00  -76.16    0.71  -85.93  201.48
   17.00  -74.77   15.71  -88.88  299.14
   18.00  -74.56   30.71  -85.57   23.67
   19.00  -75.20   45.71  -81.68   44.12
   20.00  -74.66   60.71  -77.32   50.41
   21.00  -72.92   75.71  -72.17   53.65
   22.00  -72.42   90.71  -68.10   62.18
   23.00  -71.53  105.71  -64.04   70.00
</PRE>


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