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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>
28 Oct 1997 20:52:26 yearsecs  25995146
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.01  116.22  -47.97   61.90
    1.00  -58.55  131.22  -46.33   74.74
    2.00  -59.10  146.22  -45.28   86.72
    3.00  -59.65  161.22  -44.77   98.28
    4.00  -59.31  176.22  -43.78  109.40
    5.00  -60.27  191.22  -44.63  120.57
    6.00  -61.88  206.22  -46.72  131.31
    7.00  -63.07  221.22  -48.95  141.69
    8.00  -63.10  236.22  -50.55  152.33
    9.00  -62.04  251.22  -51.55  163.82
   10.00  -61.18  266.22  -53.11  175.78
   11.00  -61.14  281.22  -55.75  187.63
   12.00  -61.28  296.22  -58.95  199.72
   13.00  -61.62  311.22  -62.78  212.29
   14.00  -62.18  326.22  -67.06  226.15
   15.00  -62.95  341.22  -71.41  242.75
   16.00  -63.95  356.22  -75.44  264.58
   17.00  -65.16   11.22  -78.30  295.08
   18.00  -65.28   26.22  -77.35  330.36
   19.00  -64.31   41.22  -72.90  355.71
   20.00  -62.70   56.22  -66.86   11.98
   21.00  -61.58   71.22  -61.53   25.53
   22.00  -59.92   86.22  -55.95   37.22
   23.00  -58.77  101.22  -51.51   49.44
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.61  116.22  -63.09   78.08
    1.00  -73.32  131.22  -61.51   87.59
    2.00  -74.13  146.22  -60.63   96.71
    3.00  -74.67  161.22  -59.99  105.26
    4.00  -75.91  176.22  -60.55  113.83
    5.00  -76.99  191.22  -61.40  121.69
    6.00  -77.08  206.22  -61.69  129.12
    7.00  -76.39  221.22  -61.69  136.89
    8.00  -76.69  236.22  -63.12  144.25
    9.00  -77.06  251.22  -64.98  151.26
   10.00  -76.95  266.22  -66.80  158.68
   11.00  -76.88  281.22  -69.02  165.91
   12.00  -76.61  296.22  -71.49  173.51
   13.00  -76.45  311.22  -74.38  180.78
   14.00  -76.33  326.22  -77.60  187.83
   15.00  -75.97  341.22  -81.01  196.33
   16.00  -76.02  356.22  -84.77  202.14
   17.00  -75.54   11.22  -88.64  223.40
   18.00  -75.25   26.22  -87.11   27.50
   19.00  -75.01   41.22  -82.84   39.57
   20.00  -74.55   56.22  -78.47   47.00
   21.00  -73.43   71.22  -73.72   52.28
   22.00  -73.33   86.22  -69.91   61.56
   23.00  -72.33  101.22  -65.70   68.61
</PRE>


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