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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 Aug 1997 18:37:48 yearsecs  19766268
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.10  150.61  -44.92   90.06
    1.00  -59.64  165.61  -44.53  101.56
    2.00  -60.19  180.61  -44.57  112.81
    3.00  -60.74  195.61  -45.18  123.77
    4.00  -60.39  210.61  -45.53  134.63
    5.00  -61.30  225.61  -47.68  145.33
    6.00  -62.75  240.61  -50.77  155.66
    7.00  -63.78  255.61  -53.79  165.99
    8.00  -63.86  270.61  -56.28  177.02
    9.00  -63.92  285.61  -59.12  188.37
   10.00  -63.47  300.61  -61.95  200.80
   11.00  -63.08  315.61  -65.22  214.35
   12.00  -62.97  330.61  -68.89  229.74
   13.00  -63.11  345.61  -72.54  248.63
   14.00  -63.49    0.61  -75.63  273.64
   15.00  -64.09   15.61  -77.08  306.04
   16.00  -64.91   30.61  -76.12  338.84
   17.00  -65.93   45.61  -73.63    4.82
   18.00  -65.75   60.61  -69.31   22.08
   19.00  -64.76   75.61  -64.22   34.72
   20.00  -64.32   90.61  -60.10   47.21
   21.00  -62.70  105.61  -55.09   57.65
   22.00  -60.96  120.61  -50.47   68.10
   23.00  -59.83  135.61  -47.15   79.02
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.96  150.61  -57.06   96.70
    1.00  -71.81  165.61  -56.86  106.18
    2.00  -72.78  180.61  -57.24  115.29
    3.00  -73.45  195.61  -57.81  123.90
    4.00  -74.90  210.61  -59.67  131.94
    5.00  -76.16  225.61  -61.76  139.26
    6.00  -76.37  240.61  -63.23  146.75
    7.00  -75.70  255.61  -64.33  155.18
    8.00  -76.04  270.61  -66.71  162.35
    9.00  -76.14  285.61  -69.24  169.60
   10.00  -75.77  300.61  -71.80  177.84
   11.00  -75.36  315.61  -74.74  186.61
   12.00  -75.02  330.61  -78.05  195.99
   13.00  -74.82  345.61  -81.70  206.51
   14.00  -74.66    0.61  -85.53  222.48
   15.00  -74.22   15.61  -88.29  300.14
   16.00  -74.22   30.61  -85.41   19.29
   17.00  -73.61   45.61  -80.86   33.35
   18.00  -73.24   60.61  -76.41   44.10
   19.00  -72.93   75.61  -72.20   53.61
   20.00  -72.56   90.61  -68.24   62.44
   21.00  -71.45  105.61  -63.98   69.80
   22.00  -71.51  120.61  -61.30   79.18
   23.00  -70.57  135.61  -58.23   87.26
</PRE>


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