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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 23:47:16 yearsecs   9676036
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.52   72.40  -61.16   26.57
    1.00  -62.12   87.40  -58.34   41.22
    2.00  -62.72  102.40  -55.76   55.00
    3.00  -63.32  117.40  -53.52   67.75
    4.00  -62.74  132.40  -50.61   78.59
    5.00  -63.94  147.40  -50.20   90.17
    6.00  -64.60  162.40  -49.76  101.00
    7.00  -64.80  177.40  -49.29  111.42
    8.00  -65.42  192.40  -49.76  121.69
    9.00  -64.83  207.40  -49.65  131.81
   10.00  -64.37  222.40  -50.29  142.15
   11.00  -64.18  237.40  -51.70  152.69
   12.00  -64.21  252.40  -53.71  163.37
   13.00  -64.47  267.40  -56.28  174.12
   14.00  -64.95  282.40  -59.41  184.81
   15.00  -65.66  297.40  -63.17  195.37
   16.00  -66.59  312.40  -67.53  205.99
   17.00  -67.75  327.40  -72.29  217.27
   18.00  -67.75  342.40  -76.06  234.26
   19.00  -67.08  357.40  -78.74  260.53
   20.00  -65.65   12.40  -78.86  297.59
   21.00  -64.54   27.40  -76.29  332.13
   22.00  -63.21   42.40  -71.25  355.76
   23.00  -62.03   57.40  -65.70   12.26
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.05   72.40  -72.32   48.71
    1.00  -72.98   87.40  -69.35   61.41
    2.00  -73.92  102.40  -66.87   72.41
    3.00  -74.81  117.40  -64.94   82.18
    4.00  -77.12  132.40  -65.00   93.16
    5.00  -78.15  147.40  -64.47  101.39
    6.00  -77.82  162.40  -63.08  108.01
    7.00  -77.24  177.40  -61.86  114.92
    8.00  -78.02  192.40  -62.45  122.34
    9.00  -77.88  207.40  -62.54  129.49
   10.00  -77.82  222.40  -63.17  136.67
   11.00  -77.58  237.40  -64.05  144.02
   12.00  -77.24  252.40  -65.28  151.60
   13.00  -77.11  267.40  -67.09  158.97
   14.00  -77.12  282.40  -69.39  165.92
   15.00  -76.68  297.40  -71.75  173.85
   16.00  -76.52  312.40  -74.67  181.03
   17.00  -75.18  327.40  -77.36  193.52
   18.00  -74.96  342.40  -80.94  203.43
   19.00  -75.54  357.40  -84.98  208.34
   20.00  -75.00   12.40  -88.66  252.54
   21.00  -73.28   27.40  -85.57    1.11
   22.00  -72.79   42.40  -81.21   24.85
   23.00  -71.92   57.40  -76.30   36.18
</PRE>


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