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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>
21 Apr 1997 13:54:02 yearsecs   9554042
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.10  227.53  -43.81  148.00
    1.00  -57.50  242.53  -46.01  159.45
    2.00  -57.90  257.53  -48.62  171.02
    3.00  -58.30  272.53  -51.53  182.85
    4.00  -58.51  287.53  -54.55  195.12
    5.00  -59.31  302.53  -58.53  207.20
    6.00  -61.18  317.53  -63.94  218.74
    7.00  -62.71  332.53  -69.12  232.33
    8.00  -62.42  347.53  -72.27  252.56
    9.00  -61.85    2.53  -74.15  279.39
   10.00  -61.43   17.53  -73.93  310.70
   11.00  -61.24   32.53  -71.26  338.71
   12.00  -61.28   47.53  -67.43  359.93
   13.00  -61.54   62.53  -63.70   16.90
   14.00  -62.02   77.53  -60.52   32.11
   15.00  -62.73   92.53  -57.89   46.58
   16.00  -63.66  107.53  -55.73   60.33
   17.00  -64.81  122.53  -54.22   73.06
   18.00  -65.02  137.53  -52.34   83.94
   19.00  -63.72  152.53  -49.54   93.68
   20.00  -62.06  167.53  -46.90  103.73
   21.00  -60.87  182.53  -45.23  114.32
   22.00  -59.06  197.53  -43.57  125.15
   23.00  -57.96  212.53  -43.30  136.40
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.31  227.53  -57.29  142.92
    1.00  -72.20  242.53  -59.63  151.32
    2.00  -73.07  257.53  -62.31  159.32
    3.00  -73.56  272.53  -64.99  167.32
    4.00  -74.43  287.53  -68.32  174.18
    5.00  -75.68  302.53  -72.13  179.04
    6.00  -75.97  317.53  -75.49  185.39
    7.00  -75.36  332.53  -78.67  195.48
    8.00  -75.14  347.53  -82.31  205.61
    9.00  -75.44    2.53  -86.30  213.67
   10.00  -74.97   17.53  -89.02  329.68
   11.00  -74.63   32.53  -85.10   27.19
   12.00  -74.41   47.53  -80.79   40.06
   13.00  -74.25   62.53  -76.58   49.70
   14.00  -74.24   77.53  -72.71   58.90
   15.00  -74.02   92.53  -69.04   67.04
   16.00  -74.31  107.53  -66.22   76.03
   17.00  -74.38  122.53  -63.75   84.23
   18.00  -74.00  137.53  -61.40   91.85
   19.00  -73.19  152.53  -59.14   99.44
   20.00  -72.83  167.53  -57.79  107.78
   21.00  -71.98  182.53  -56.39  116.23
   22.00  -72.06  197.53  -56.44  125.02
   23.00  -71.14  212.53  -56.06  134.00
</PRE>


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