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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>
27 May 1997 21:42:56 yearsecs  12692576
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.62  100.64  -51.45   48.75
    1.00  -59.18  115.64  -49.37   62.43
    2.00  -59.74  130.64  -47.67   75.08
    3.00  -60.29  145.64  -46.58   86.89
    4.00  -59.88  160.64  -45.04   97.93
    5.00  -60.81  175.64  -45.32  109.29
    6.00  -62.28  190.64  -46.62  120.28
    7.00  -63.35  205.64  -48.12  130.76
    8.00  -63.44  220.64  -49.25  141.18
    9.00  -62.76  235.64  -50.16  152.06
   10.00  -62.36  250.64  -51.77  163.20
   11.00  -62.19  265.64  -53.93  174.60
   12.00  -62.23  280.64  -56.63  186.18
   13.00  -62.49  295.64  -59.93  197.90
   14.00  -62.97  310.64  -63.89  209.99
   15.00  -63.68  325.64  -68.30  223.24
   16.00  -64.61  340.64  -72.84  239.05
   17.00  -65.77  355.64  -77.14  260.14
   18.00  -65.84   10.64  -79.03  293.04
   19.00  -64.90   25.64  -77.00  328.78
   20.00  -63.29   40.64  -71.81  353.37
   21.00  -62.14   55.64  -66.32   10.50
   22.00  -60.47   70.64  -60.25   23.40
   23.00  -59.35   85.64  -55.36   35.96
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.29  100.64  -65.78   68.17
    1.00  -73.02  115.64  -63.58   78.37
    2.00  -73.88  130.64  -62.13   87.95
    3.00  -74.47  145.64  -61.02   96.71
    4.00  -75.84  160.64  -61.20  105.73
    5.00  -76.99  175.64  -61.65  113.95
    6.00  -77.09  190.64  -61.50  121.41
    7.00  -76.27  205.64  -60.87  129.00
    8.00  -76.23  220.64  -61.50  136.68
    9.00  -76.05  235.64  -62.47  144.49
   10.00  -75.98  250.64  -63.96  152.27
   11.00  -75.77  265.64  -65.75  160.27
   12.00  -75.58  280.64  -67.96  168.27
   13.00  -75.51  295.64  -70.65  176.03
   14.00  -75.46  310.64  -73.70  183.75
   15.00  -75.13  325.64  -76.92  192.76
   16.00  -75.21  340.64  -80.60  200.80
   17.00  -74.70  355.64  -84.24  216.02
   18.00  -74.44   10.64  -87.88  255.19
   19.00  -74.32   25.64  -86.79    8.90
   20.00  -73.97   40.64  -82.48   30.69
   21.00  -72.92   55.64  -77.57   38.79
   22.00  -72.91   70.64  -73.47   50.14
   23.00  -71.97   85.64  -68.90   57.79
</PRE>


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