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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>
22 Apr 1997 20:27:01 yearsecs   9664021
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.30  121.57  -51.74   70.04
    1.00  -62.86  136.57  -50.21   81.73
    2.00  -63.42  151.57  -49.31   92.85
    3.00  -63.97  166.57  -48.89  103.68
    4.00  -63.59  181.57  -47.97  114.08
    5.00  -64.86  196.57  -49.27  124.49
    6.00  -65.32  211.57  -50.37  134.56
    7.00  -65.31  226.57  -51.57  144.72
    8.00  -65.99  241.57  -53.87  154.69
    9.00  -65.35  256.57  -55.35  165.59
   10.00  -64.98  271.57  -57.45  176.74
   11.00  -64.74  286.57  -60.05  188.20
   12.00  -64.78  301.57  -63.34  199.88
   13.00  -65.03  316.57  -67.22  212.25
   14.00  -65.52  331.57  -71.44  226.34
   15.00  -66.22  346.57  -75.69  243.98
   16.00  -67.16    1.57  -79.51  269.19
   17.00  -68.31   16.57  -81.78  307.66
   18.00  -68.34   31.57  -79.80  346.85
   19.00  -67.65   46.57  -75.28   10.06
   20.00  -66.28   61.57  -69.64   24.18
   21.00  -65.18   76.57  -64.45   36.34
   22.00  -63.95   91.57  -59.47   47.49
   23.00  -62.77  106.57  -54.97   58.52
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.03  121.57  -61.65   80.43
    1.00  -73.12  136.57  -60.65   90.37
    2.00  -74.09  151.57  -60.11   99.60
    3.00  -75.08  166.57  -60.10  108.37
    4.00  -77.62  181.57  -62.15  117.08
    5.00  -78.62  196.57  -63.09  124.30
    6.00  -78.11  211.57  -62.92  131.40
    7.00  -77.49  226.57  -63.11  138.89
    8.00  -78.40  241.57  -65.18  145.14
    9.00  -78.15  256.57  -66.54  152.28
   10.00  -78.19  271.57  -68.52  158.88
   11.00  -77.97  286.57  -70.67  165.75
   12.00  -77.65  301.57  -73.12  172.77
   13.00  -77.49  316.57  -76.00  179.06
   14.00  -77.60  331.57  -79.22  183.33
   15.00  -77.17  346.57  -82.53  189.12
   16.00  -77.01    1.57  -86.08  188.17
   17.00  -75.52   16.57  -89.68  328.87
   18.00  -75.29   31.57  -85.64   34.55
   19.00  -75.97   46.57  -81.73   50.33
   20.00  -75.40   61.57  -77.51   54.38
   21.00  -73.52   76.57  -72.42   56.06
   22.00  -72.85   91.57  -68.27   63.72
   23.00  -72.05  106.57  -64.35   71.42
</PRE>


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