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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
24 Apr 1997 14:57:04 yearsecs   9817024
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.21  212.56  -48.39  135.59
    1.00  -64.47  227.56  -50.88  145.69
    2.00  -65.32  242.56  -53.39  155.74
    3.00  -67.36  257.56  -57.29  164.73
    4.00  -67.14  272.56  -59.52  175.34
    5.00  -68.01  287.56  -63.11  184.86
    6.00  -68.23  302.56  -66.56  195.40
    7.00  -68.96  317.56  -70.79  205.69
    8.00  -70.55  332.56  -75.79  214.80
    9.00  -70.87  347.56  -79.83  230.66
   10.00  -70.09    2.56  -82.54  262.57
   11.00  -69.42   17.56  -82.98  310.83
   12.00  -69.08   32.56  -80.38  350.99
   13.00  -69.04   47.56  -76.46   15.31
   14.00  -69.30   62.56  -72.52   32.44
   15.00  -69.84   77.56  -69.00   46.75
   16.00  -70.38   92.56  -65.82   59.12
   17.00  -70.40  107.56  -62.59   69.36
   18.00  -70.45  122.56  -59.95   79.06
   19.00  -69.69  137.56  -57.11   87.67
   20.00  -68.74  152.56  -54.66   96.47
   21.00  -67.90  167.56  -52.81  105.75
   22.00  -66.83  182.56  -51.21  115.30
   23.00  -64.77  197.56  -49.20  125.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.21  212.56  -53.21  134.67
    1.00  -69.47  227.56  -55.56  143.76
    2.00  -70.32  242.56  -57.93  152.70
    3.00  -76.56  257.56  -65.32  155.03
    4.00  -78.70  272.56  -69.04  158.25
    5.00  -79.13  287.56  -71.56  163.11
    6.00  -78.30  302.56  -73.65  171.05
    7.00  -77.07  317.56  -76.02  181.11
    8.00  -77.07  332.56  -79.30  186.52
    9.00  -77.12  347.56  -82.76  189.70
   10.00  -76.91    2.56  -86.33  189.00
   11.00  -77.03   17.56  -88.61  109.69
   12.00  -77.37   32.56  -85.45   64.46
   13.00  -77.20   47.56  -81.76   60.09
   14.00  -77.02   62.56  -78.00   62.94
   15.00  -76.84   77.56  -74.40   67.97
   16.00  -76.66   92.56  -71.05   73.94
   17.00  -76.47  107.56  -68.05   80.39
   18.00  -77.72  122.56  -66.79   89.67
   19.00  -78.06  137.56  -65.30   96.85
   20.00  -77.19  152.56  -63.11  102.79
   21.00  -75.11  167.56  -60.08  108.92
   22.00  -71.83  182.56  -56.24  116.22
   23.00  -69.77  197.56  -54.15  125.10
</PRE>


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