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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>
17 Sep 1997 12:22:08 yearsecs  22422128
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.98  245.52  -49.75  160.14
    1.00  -61.60  260.52  -52.56  171.10
    2.00  -62.23  275.52  -55.68  182.17
    3.00  -62.86  290.52  -59.17  193.36
    4.00  -62.15  305.52  -61.89  206.58
    5.00  -63.29  320.52  -66.65  218.70
    6.00  -64.10  335.52  -71.14  233.55
    7.00  -64.44  350.52  -74.86  253.85
    8.00  -64.67    5.52  -77.43  282.34
    9.00  -64.38   20.52  -77.07  317.26
   10.00  -63.97   35.52  -73.91  346.36
   11.00  -63.78   50.52  -69.75    7.15
   12.00  -63.81   65.52  -65.73   23.49
   13.00  -64.07   80.52  -62.22   38.01
   14.00  -64.56   95.52  -59.24   51.68
   15.00  -65.26  110.52  -56.84   64.56
   16.00  -66.20  125.52  -55.18   76.52
   17.00  -67.35  140.52  -54.40   87.69
   18.00  -67.35  155.52  -53.01   97.60
   19.00  -66.69  170.52  -51.45  107.28
   20.00  -65.21  185.52  -49.54  117.03
   21.00  -64.10  200.52  -48.63  127.19
   22.00  -62.69  215.52  -48.11  137.76
   23.00  -61.52  230.52  -48.41  148.83
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.10  245.52  -58.99  153.96
    1.00  -71.93  260.52  -61.75  162.34
    2.00  -72.86  275.52  -64.91  170.11
    3.00  -73.69  290.52  -68.33  177.35
    4.00  -75.94  305.52  -72.91  179.75
    5.00  -76.77  320.52  -76.52  183.55
    6.00  -76.79  335.52  -79.89  189.06
    7.00  -76.21  350.52  -83.36  198.26
    8.00  -76.97    5.52  -87.01  184.48
    9.00  -76.89   20.52  -88.35   82.80
   10.00  -76.81   35.52  -84.79   55.95
   11.00  -76.55   50.52  -80.87   56.07
   12.00  -76.24   65.52  -76.94   60.27
   13.00  -76.14   80.52  -73.30   66.78
   14.00  -76.12   95.52  -70.05   73.86
   15.00  -75.66  110.52  -66.86   80.18
   16.00  -75.53  125.52  -64.40   87.49
   17.00  -74.25  140.52  -61.32   93.73
   18.00  -74.04  155.52  -59.75  101.73
   19.00  -74.57  170.52  -59.40  110.25
   20.00  -74.01  185.52  -58.40  118.32
   21.00  -72.31  200.52  -56.75  126.75
   22.00  -71.90  215.52  -56.97  135.56
   23.00  -70.89  230.52  -57.17  144.93
</PRE>


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