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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 Jul 1997 14:48:36 yearsecs  17074116
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.90  218.50  -48.56  139.82
    1.00  -63.31  233.50  -50.44  150.30
    2.00  -63.91  248.50  -52.88  160.75
    3.00  -64.49  263.50  -55.66  171.24
    4.00  -64.21  278.50  -58.00  182.64
    5.00  -65.49  293.50  -62.16  192.59
    6.00  -65.82  308.50  -65.91  204.01
    7.00  -65.68  323.50  -69.55  217.65
    8.00  -66.25  338.50  -73.81  232.94
    9.00  -65.84  353.50  -76.80  256.12
   10.00  -65.41    8.50  -78.45  288.32
   11.00  -65.21   23.50  -77.68  324.36
   12.00  -65.25   38.50  -74.70  353.10
   13.00  -65.50   53.50  -70.98   13.81
   14.00  -65.98   68.50  -67.44   30.38
   15.00  -66.69   83.50  -64.35   45.10
   16.00  -67.62   98.50  -61.77   58.64
   17.00  -68.75  113.50  -59.83   71.03
   18.00  -68.76  128.50  -57.36   81.02
   19.00  -68.08  143.50  -54.82   90.19
   20.00  -66.78  158.50  -52.22   99.29
   21.00  -65.68  173.50  -50.31  108.99
   22.00  -64.52  188.50  -48.85  118.99
   23.00  -63.37  203.50  -48.04  129.28
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.42  218.50  -56.69  137.48
    1.00  -72.59  233.50  -59.04  145.75
    2.00  -73.60  248.50  -61.60  153.60
    3.00  -74.93  263.50  -64.75  160.35
    4.00  -77.62  278.50  -69.13  163.08
    5.00  -78.57  293.50  -72.20  166.88
    6.00  -77.93  308.50  -74.58  174.47
    7.00  -77.28  323.50  -77.37  182.45
    8.00  -78.07  338.50  -80.80  181.74
    9.00  -77.92  353.50  -84.07  181.40
   10.00  -78.02    8.50  -86.96  158.87
   11.00  -77.85   23.50  -87.10   88.37
   12.00  -77.52   38.50  -84.00   63.34
   13.00  -77.35   53.50  -80.31   62.23
   14.00  -77.49   68.50  -76.79   67.26
   15.00  -77.09   83.50  -73.23   71.32
   16.00  -76.96   98.50  -70.09   77.40
   17.00  -75.48  113.50  -66.19   81.34
   18.00  -75.29  128.50  -63.76   88.66
   19.00  -75.94  143.50  -62.67   97.08
   20.00  -75.31  158.50  -60.81  104.25
   21.00  -73.30  173.50  -57.99  111.39
   22.00  -72.42  188.50  -56.76  119.79
   23.00  -71.57  203.50  -56.10  128.56
</PRE>


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