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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>
17 Apr 1997 02:42:03 yearsecs   9168123
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.58   30.35  -69.66  334.10
    1.00  -60.24   45.35  -66.66  356.02
    2.00  -60.89   60.35  -63.44   13.76
    3.00  -61.55   75.35  -60.47   29.40
    4.00  -60.72   90.35  -56.03   41.99
    5.00  -61.71  105.35  -54.06   56.30
    6.00  -62.89  120.35  -52.56   69.63
    7.00  -63.63  135.35  -51.17   81.39
    8.00  -64.02  150.35  -50.03   92.30
    9.00  -63.41  165.35  -48.38  102.62
   10.00  -62.99  180.35  -47.40  113.12
   11.00  -62.80  195.35  -47.21  123.62
   12.00  -62.84  210.35  -47.89  134.11
   13.00  -63.10  225.35  -49.37  144.60
   14.00  -63.58  240.35  -51.51  155.07
   15.00  -64.29  255.35  -54.21  165.46
   16.00  -65.22  270.35  -57.45  175.63
   17.00  -66.38  285.35  -61.24  185.38
   18.00  -66.37  300.35  -64.46  196.65
   19.00  -65.66  315.35  -67.47  210.12
   20.00  -64.07  330.35  -69.84  227.63
   21.00  -62.95  345.35  -72.34  248.50
   22.00  -61.36    0.35  -73.39  275.72
   23.00  -60.22   15.35  -72.68  306.49
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.44   30.35  -83.25  355.58
    1.00  -72.08   45.35  -79.83   24.55
    2.00  -72.95   60.35  -76.28   42.74
    3.00  -73.62   75.35  -72.80   55.59
    4.00  -75.39   90.35  -70.59   69.37
    5.00  -76.35  105.35  -68.35   79.09
    6.00  -76.57  120.35  -66.08   86.63
    7.00  -75.98  135.35  -63.57   93.04
    8.00  -76.47  150.35  -62.57  101.04
    9.00  -76.54  165.35  -61.64  108.59
   10.00  -76.31  180.35  -60.83  116.09
   11.00  -75.98  195.35  -60.38  123.75
   12.00  -75.70  210.35  -60.46  131.58
   13.00  -75.62  225.35  -61.22  139.45
   14.00  -75.49  240.35  -62.40  147.41
   15.00  -75.03  255.35  -63.72  155.85
   16.00  -74.97  270.35  -65.80  163.97
   17.00  -74.02  285.35  -67.60  173.79
   18.00  -73.82  300.35  -70.43  182.67
   19.00  -74.09  315.35  -73.93  190.64
   20.00  -73.60  330.35  -77.24  201.97
   21.00  -72.22  345.35  -80.23  221.55
   22.00  -72.10    0.35  -83.84  246.34
   23.00  -71.03   15.35  -84.81  302.65
</PRE>


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