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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>
20 Apr 1997 22:27:25 yearsecs   9498445
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.84   92.21  -59.20   47.87
    1.00  -63.75  107.21  -55.89   60.18
    2.00  -64.56  122.21  -54.01   72.59
    3.00  -65.37  137.21  -52.74   83.98
    4.00  -65.14  152.21  -51.02   94.20
    5.00  -66.27  167.21  -51.19  104.92
    6.00  -66.51  182.21  -50.89  115.02
    7.00  -66.37  197.21  -50.77  124.92
    8.00  -67.05  212.21  -52.07  134.68
    9.00  -66.56  227.21  -52.81  144.70
   10.00  -66.18  242.21  -54.13  155.03
   11.00  -65.96  257.21  -55.99  165.59
   12.00  -65.99  272.21  -58.45  176.25
   13.00  -66.25  287.21  -61.51  186.90
   14.00  -66.73  302.21  -65.21  197.55
   15.00  -67.44  317.21  -69.46  208.54
   16.00  -68.37  332.21  -74.03  220.65
   17.00  -69.43  347.21  -78.62  235.79
   18.00  -69.33    2.21  -81.75  264.59
   19.00  -68.71   17.21  -82.20  309.60
   20.00  -67.53   32.21  -78.77  346.28
   21.00  -66.48   47.21  -73.82    8.12
   22.00  -65.41   62.21  -68.49   23.07
   23.00  -64.41   77.21  -63.41   35.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.85   92.21  -66.34   59.83
    1.00  -71.97  107.21  -64.15   71.67
    2.00  -72.97  122.21  -62.46   82.07
    3.00  -75.52  137.21  -62.92   93.41
    4.00  -78.05  152.21  -63.98  103.47
    5.00  -78.74  167.21  -63.76  110.89
    6.00  -78.06  182.21  -62.58  117.51
    7.00  -77.41  197.21  -61.85  124.65
    8.00  -78.13  212.21  -62.97  131.70
    9.00  -77.78  227.21  -63.44  138.99
   10.00  -77.86  242.21  -64.75  146.02
   11.00  -77.69  257.21  -66.23  153.26
   12.00  -77.56  272.21  -68.13  160.39
   13.00  -77.36  287.21  -70.37  167.53
   14.00  -77.47  302.21  -73.14  173.61
   15.00  -77.11  317.21  -75.97  180.83
   16.00  -77.15  332.21  -79.24  185.97
   17.00  -76.15  347.21  -82.53  197.56
   18.00  -76.19    2.21  -86.32  201.09
   19.00  -76.41   17.21  -89.27  101.33
   20.00  -75.61   32.21  -85.55   39.49
   21.00  -73.61   47.21  -80.41   34.88
   22.00  -72.34   62.21  -75.30   41.84
   23.00  -71.20   77.21  -70.34   49.90
</PRE>


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