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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 13:52:25 yearsecs   9553945
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.10  227.89  -43.85  148.28
    1.00  -57.50  242.89  -46.06  159.73
    2.00  -57.90  257.89  -48.68  171.31
    3.00  -58.30  272.89  -51.60  183.14
    4.00  -58.51  287.89  -54.62  195.42
    5.00  -59.31  302.89  -58.61  207.52
    6.00  -61.18  317.89  -64.03  219.09
    7.00  -62.71  332.89  -69.21  232.75
    8.00  -62.41  347.89  -72.35  253.11
    9.00  -61.85    2.89  -74.18  280.10
   10.00  -61.43   17.89  -73.90  311.45
   11.00  -61.24   32.89  -71.18  339.30
   12.00  -61.28   47.89  -67.33    0.37
   13.00  -61.54   62.89  -63.60   17.27
   14.00  -62.02   77.89  -60.44   32.45
   15.00  -62.73   92.89  -57.81   46.89
   16.00  -63.66  107.89  -55.66   60.62
   17.00  -64.81  122.89  -54.16   73.33
   18.00  -65.02  137.89  -52.30   84.19
   19.00  -63.72  152.89  -49.51   93.93
   20.00  -62.06  167.89  -46.88  103.99
   21.00  -60.87  182.89  -45.22  114.58
   22.00  -59.06  197.89  -43.58  125.42
   23.00  -57.96  212.89  -43.33  136.67
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.31  227.89  -57.32  143.13
    1.00  -72.20  242.89  -59.67  151.53
    2.00  -73.08  257.89  -62.36  159.52
    3.00  -73.57  272.89  -65.06  167.52
    4.00  -74.44  287.89  -68.39  174.37
    5.00  -75.69  302.89  -72.21  179.20
    6.00  -75.97  317.89  -75.57  185.53
    7.00  -75.37  332.89  -78.76  195.59
    8.00  -75.15  347.89  -82.40  205.78
    9.00  -75.45    2.89  -86.40  213.87
   10.00  -74.98   17.89  -88.98  335.22
   11.00  -74.64   32.89  -85.01   27.75
   12.00  -74.42   47.89  -80.69   40.38
   13.00  -74.25   62.89  -76.49   49.96
   14.00  -74.24   77.89  -72.63   59.13
   15.00  -74.03   92.89  -68.96   67.26
   16.00  -74.32  107.89  -66.15   76.24
   17.00  -74.38  122.89  -63.69   84.43
   18.00  -74.00  137.89  -61.37   92.05
   19.00  -73.20  152.89  -59.11   99.65
   20.00  -72.83  167.89  -57.77  107.99
   21.00  -71.98  182.89  -56.39  116.45
   22.00  -72.06  197.89  -56.45  125.23
   23.00  -71.15  212.89  -56.08  134.21
</PRE>


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