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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 Oct 1997 14:41:28 yearsecs  25022488
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.01  207.18  -48.84  131.76
    1.00  -63.83  222.18  -49.76  142.15
    2.00  -64.68  237.18  -52.14  152.30
    3.00  -65.53  252.18  -54.87  162.35
    4.00  -65.30  267.18  -56.99  173.24
    5.00  -66.41  282.18  -60.65  183.02
    6.00  -66.63  297.18  -63.96  193.84
    7.00  -66.49  312.18  -67.39  205.98
    8.00  -67.17  327.18  -71.75  218.33
    9.00  -66.70  342.18  -75.09  236.64
   10.00  -66.29  357.18  -77.93  261.97
   11.00  -66.10   12.18  -79.35  296.70
   12.00  -66.13   27.18  -78.17  333.34
   13.00  -66.39   42.18  -75.07    0.91
   14.00  -66.87   57.18  -71.50   20.84
   15.00  -67.58   72.18  -68.18   37.08
   16.00  -68.51   87.18  -65.30   51.49
   17.00  -69.55  102.18  -62.88   64.38
   18.00  -69.43  117.18  -59.84   74.36
   19.00  -68.83  132.18  -56.92   83.47
   20.00  -67.67  147.18  -54.04   92.30
   21.00  -66.62  162.18  -51.82  101.68
   22.00  -65.57  177.18  -50.07  111.45
   23.00  -64.59  192.18  -48.93  121.50
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.44  207.18  -55.11  130.92
    1.00  -71.55  222.18  -57.08  139.61
    2.00  -72.56  237.18  -59.38  147.92
    3.00  -75.37  252.18  -63.62  153.77
    4.00  -77.91  267.18  -67.69  157.46
    5.00  -78.55  282.18  -70.35  162.52
    6.00  -77.84  297.18  -72.42  170.44
    7.00  -77.18  312.18  -74.95  178.61
    8.00  -77.86  327.18  -78.34  180.77
    9.00  -77.64  342.18  -81.57  185.08
   10.00  -77.77  357.18  -84.90  181.12
   11.00  -77.56   12.18  -87.85  150.11
   12.00  -77.47   27.18  -86.65   72.54
   13.00  -77.26   42.18  -83.10   60.24
   14.00  -77.36   57.18  -79.42   63.16
   15.00  -77.00   72.18  -75.71   66.43
   16.00  -77.07   87.18  -72.44   72.82
   17.00  -76.16  102.18  -68.78   77.14
   18.00  -76.24  117.18  -66.26   84.52
   19.00  -76.37  132.18  -64.32   92.00
   20.00  -75.53  147.18  -61.93   98.54
   21.00  -73.50  162.18  -58.76  105.08
   22.00  -72.06  177.18  -56.61  113.11
   23.00  -70.84  192.18  -55.16  121.83
</PRE>


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