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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 Apr 1997 00:25:40 yearsecs  10110340
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.49   62.63  -67.31   21.77
    1.00  -64.05   77.63  -62.91   35.37
    2.00  -65.02   92.63  -60.40   49.96
    3.00  -65.99  107.63  -58.17   63.25
    4.00  -65.79  122.63  -55.22   74.07
    5.00  -66.81  137.63  -54.18   85.35
    6.00  -66.98  152.63  -52.87   95.48
    7.00  -66.83  167.63  -51.73  105.40
    8.00  -67.50  182.63  -51.88  115.46
    9.00  -67.10  197.63  -51.51  125.18
   10.00  -66.68  212.63  -51.75  135.01
   11.00  -66.49  227.63  -52.78  145.00
   12.00  -66.53  242.63  -54.50  155.11
   13.00  -66.79  257.63  -56.79  165.24
   14.00  -67.27  272.63  -59.65  175.25
   15.00  -67.98  287.63  -63.09  184.96
   16.00  -68.91  302.63  -67.14  194.27
   17.00  -69.91  317.63  -71.54  203.61
   18.00  -69.73  332.63  -75.20  217.36
   19.00  -69.16  347.63  -78.50  237.31
   20.00  -68.06    2.63  -80.58  269.39
   21.00  -67.04   17.63  -80.31  310.64
   22.00  -66.03   32.63  -76.99  344.26
   23.00  -65.13   47.63  -72.16    5.92
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.72   62.63  -72.91   33.70
    1.00  -70.81   77.63  -69.89   49.20
    2.00  -71.83   92.63  -67.13   62.12
    3.00  -75.39  107.63  -67.13   78.18
    4.00  -77.88  122.63  -66.92   89.98
    5.00  -78.38  137.63  -65.59   97.32
    6.00  -77.62  152.63  -63.53  103.24
    7.00  -76.93  167.63  -61.92  109.96
    8.00  -77.24  182.63  -61.74  117.49
    9.00  -77.20  197.63  -61.64  124.86
   10.00  -77.51  212.63  -62.36  132.13
   11.00  -77.28  227.63  -62.98  139.55
   12.00  -77.30  242.63  -64.28  146.82
   13.00  -77.08  257.63  -65.77  154.34
   14.00  -77.15  272.63  -67.88  161.35
   15.00  -76.83  287.63  -70.07  169.00
   16.00  -77.00  302.63  -72.95  175.24
   17.00  -76.34  317.63  -75.70  184.02
   18.00  -76.55  332.63  -79.15  189.38
   19.00  -76.44  347.63  -82.69  195.33
   20.00  -75.50    2.63  -86.34  212.80
   21.00  -73.40   17.63  -87.35  315.87
   22.00  -71.67   32.63  -82.92    2.07
   23.00  -70.25   47.63  -77.61   19.50
</PRE>


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