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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>
18 May 1997 21:50:58 yearsecs  11915458
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.00   98.90  -55.69   51.14
    1.00  -63.09  113.90  -53.90   64.78
    2.00  -64.08  128.90  -52.48   77.06
    3.00  -66.59  143.90  -53.26   89.41
    4.00  -66.32  158.90  -51.73   99.34
    5.00  -67.09  173.90  -51.72  109.65
    6.00  -66.91  188.90  -51.23  119.48
    7.00  -66.65  203.90  -51.26  129.30
    8.00  -68.30  218.90  -53.73  138.69
    9.00  -68.82  233.90  -55.59  148.09
   10.00  -67.90  248.90  -56.55  158.47
   11.00  -67.54  263.90  -58.43  168.93
   12.00  -67.49  278.90  -60.97  179.41
   13.00  -67.70  293.90  -64.17  189.86
   14.00  -68.15  308.90  -67.99  200.38
   15.00  -68.83  323.90  -72.28  211.47
   16.00  -69.71  338.90  -76.78  224.14
   17.00  -70.54  353.90  -81.12  242.03
   18.00  -70.33    8.90  -83.69  280.20
   19.00  -69.79   23.90  -82.77  331.39
   20.00  -68.75   38.90  -78.49    1.76
   21.00  -67.32   53.90  -72.90   18.25
   22.00  -64.85   68.90  -66.05   28.61
   23.00  -62.94   83.90  -60.10   39.27
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.00   98.90  -61.05   57.99
    1.00  -68.09  113.90  -59.08   70.46
    2.00  -69.08  128.90  -57.62   81.60
    3.00  -74.21  143.90  -60.93   95.52
    4.00  -76.70  158.90  -62.18  105.48
    5.00  -76.84  173.90  -61.56  113.02
    6.00  -75.27  188.90  -59.65  120.33
    7.00  -75.25  203.90  -59.78  128.29
    8.00  -76.93  218.90  -62.09  135.46
    9.00  -77.50  233.90  -63.68  142.41
   10.00  -77.16  248.90  -64.81  150.02
   11.00  -76.72  263.90  -66.29  157.92
   12.00  -76.81  278.90  -68.59  164.97
   13.00  -76.49  293.90  -70.97  172.74
   14.00  -76.45  308.90  -73.90  179.72
   15.00  -76.12  323.90  -76.99  187.72
   16.00  -76.36  338.90  -80.56  192.91
   17.00  -76.05  353.90  -84.18  201.03
   18.00  -76.54    8.90  -87.95  187.85
   19.00  -76.05   23.90  -87.88   45.75
   20.00  -74.73   38.90  -83.37   35.26
   21.00  -72.32   53.90  -77.60   34.61
   22.00  -69.85   68.90  -71.31   39.65
   23.00  -67.94   83.90  -65.54   47.77
</PRE>


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