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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>
19 Oct 1997 14:16:52 yearsecs  25193812
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.73  212.80  -50.84  135.31
    1.00  -65.32  227.80  -51.70  145.55
    2.00  -66.26  242.80  -54.27  155.38
    3.00  -67.19  257.80  -57.18  165.03
    4.00  -66.89  272.80  -59.34  175.77
    5.00  -67.64  287.80  -62.84  185.54
    6.00  -67.61  302.80  -66.10  196.60
    7.00  -67.64  317.80  -69.77  208.66
    8.00  -68.44  332.80  -74.23  221.08
    9.00  -68.39  347.80  -77.90  240.05
   10.00  -68.12    2.80  -80.66  269.66
   11.00  -67.93   17.80  -81.30  311.22
   12.00  -67.96   32.80  -79.12  348.44
   13.00  -68.22   47.80  -75.55   13.20
   14.00  -68.70   62.80  -71.86   31.08
   15.00  -69.41   77.80  -68.54   45.95
   16.00  -70.22   92.80  -65.62   58.99
   17.00  -70.80  107.80  -62.93   70.15
   18.00  -70.74  122.80  -60.19   79.56
   19.00  -70.17  137.80  -57.56   88.24
   20.00  -69.24  152.80  -55.15   96.93
   21.00  -68.34  167.80  -53.25  106.07
   22.00  -67.54  182.80  -51.92  115.58
   23.00  -66.68  197.80  -51.10  125.30
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.28  212.80  -56.20  134.13
    1.00  -72.33  227.80  -58.27  142.58
    2.00  -73.20  242.80  -60.57  150.69
    3.00  -77.87  257.80  -66.45  153.26
    4.00  -79.89  272.80  -69.93  155.76
    5.00  -80.23  287.80  -72.25  160.05
    6.00  -79.57  302.80  -74.30  166.75
    7.00  -78.82  317.80  -76.73  173.81
    8.00  -79.06  332.80  -79.71  175.12
    9.00  -78.94  347.80  -82.68  174.29
   10.00  -79.00    2.80  -85.37  160.49
   11.00  -78.87   17.80  -86.65  118.32
   12.00  -79.04   32.80  -84.69   83.86
   13.00  -78.82   47.80  -81.73   72.61
   14.00  -78.73   62.80  -78.45   72.14
   15.00  -78.48   77.80  -75.17   74.46
   16.00  -78.52   92.80  -72.24   79.57
   17.00  -78.28  107.80  -69.45   84.60
   18.00  -78.92  122.80  -67.79   92.01
   19.00  -78.81  137.80  -65.97   98.01
   20.00  -77.90  152.80  -63.79  103.59
   21.00  -76.04  167.80  -61.01  109.54
   22.00  -73.75  182.80  -58.18  116.76
   23.00  -72.18  197.80  -56.56  125.18
</PRE>


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