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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>
31 May 1997 12:31:31 yearsecs  13005091
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.38  246.60  -50.28  160.74
    1.00  -61.96  261.60  -53.07  171.68
    2.00  -62.55  276.60  -56.17  182.73
    3.00  -63.14  291.60  -59.65  193.92
    4.00  -62.54  306.60  -62.51  207.02
    5.00  -63.73  321.60  -67.33  219.08
    6.00  -64.27  336.60  -71.56  234.55
    7.00  -64.87  351.60  -75.50  254.81
    8.00  -65.34    6.60  -78.24  283.92
    9.00  -64.66   21.60  -77.27  319.78
   10.00  -64.23   36.60  -73.97  348.48
   11.00  -64.04   51.60  -69.78    8.88
   12.00  -64.08   66.60  -65.77   25.02
   13.00  -64.35   81.60  -62.27   39.42
   14.00  -64.84   96.60  -59.31   52.99
   15.00  -65.56  111.60  -56.94   65.74
   16.00  -66.51  126.60  -55.34   77.56
   17.00  -67.68  141.60  -54.61   88.65
   18.00  -67.70  156.60  -53.29   98.50
   19.00  -66.93  171.60  -51.64  108.07
   20.00  -65.59  186.60  -49.92  117.81
   21.00  -64.46  201.60  -49.03  127.91
   22.00  -63.10  216.60  -48.60  138.43
   23.00  -61.91  231.60  -48.90  149.47
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.79  246.60  -58.85  154.87
    1.00  -72.01  261.60  -61.97  162.90
    2.00  -73.20  276.60  -65.38  170.22
    3.00  -74.31  291.60  -69.00  176.67
    4.00  -76.85  306.60  -73.65  177.40
    5.00  -78.06  321.60  -77.24  178.27
    6.00  -77.82  336.60  -80.36  183.11
    7.00  -77.09  351.60  -83.70  190.12
    8.00  -77.76    6.60  -86.83  168.10
    9.00  -77.49   21.60  -87.69   90.04
   10.00  -77.33   36.60  -84.48   61.88
   11.00  -76.98   51.60  -80.70   59.34
   12.00  -76.51   66.60  -76.80   62.00
   13.00  -76.24   81.60  -73.12   67.63
   14.00  -76.12   96.60  -69.83   74.38
   15.00  -75.48  111.60  -66.51   80.37
   16.00  -75.12  126.60  -63.86   87.44
   17.00  -73.38  141.60  -60.35   93.46
   18.00  -72.85  156.60  -58.48  101.51
   19.00  -72.87  171.60  -57.64  110.14
   20.00  -72.75  186.60  -57.11  118.73
   21.00  -71.21  201.60  -55.69  127.47
   22.00  -71.03  216.60  -56.19  136.46
   23.00  -70.38  231.60  -56.79  145.85
</PRE>


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