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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>
09 Apr 1997 19:38:22 yearsecs   8537902
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.63  135.25  -53.25   82.81
    1.00  -65.15  150.25  -51.20   92.85
    2.00  -66.12  165.25  -51.14  103.54
    3.00  -67.09  180.25  -51.52  113.83
    4.00  -66.81  195.25  -51.17  123.63
    5.00  -67.59  210.25  -52.48  133.30
    6.00  -67.58  225.25  -53.58  143.03
    7.00  -67.58  240.25  -55.16  152.91
    8.00  -68.36  255.25  -57.84  162.36
    9.00  -68.29  270.25  -60.13  172.53
   10.00  -68.00  285.25  -62.63  183.25
   11.00  -67.77  300.25  -65.64  194.42
   12.00  -67.80  315.25  -69.27  206.16
   13.00  -68.06  330.25  -73.28  219.38
   14.00  -68.55  345.25  -77.42  235.88
   15.00  -69.25    0.25  -81.33  260.20
   16.00  -70.09   15.25  -83.77  302.84
   17.00  -70.73   30.25  -82.58  351.85
   18.00  -70.63   45.25  -78.62   17.91
   19.00  -70.07   60.25  -73.89   32.48
   20.00  -69.13   75.25  -68.93   43.21
   21.00  -68.21   90.25  -64.27   53.32
   22.00  -67.39  105.25  -60.08   63.33
   23.00  -66.54  120.25  -56.38   73.14
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.39  135.25  -59.10   87.84
    1.00  -72.44  150.25  -58.58   97.56
    2.00  -73.33  165.25  -58.41  106.72
    3.00  -77.87  180.25  -62.43  116.52
    4.00  -79.91  195.25  -64.40  123.68
    5.00  -80.25  210.25  -65.03  129.99
    6.00  -79.60  225.25  -65.07  136.75
    7.00  -78.91  240.25  -65.52  143.97
    8.00  -79.19  255.25  -67.26  150.10
    9.00  -79.00  270.25  -68.95  156.68
   10.00  -79.05  285.25  -71.15  162.47
   11.00  -78.84  300.25  -73.51  168.46
   12.00  -78.87  315.25  -76.26  172.93
   13.00  -78.75  330.25  -79.16  176.66
   14.00  -78.67  345.25  -82.22  177.15
   15.00  -78.41    0.25  -85.28  170.67
   16.00  -78.49   15.25  -87.08  128.17
   17.00  -78.23   30.25  -85.62   78.38
   18.00  -78.82   45.25  -82.28   73.25
   19.00  -78.65   60.25  -78.99   71.36
   20.00  -77.73   75.25  -75.37   70.57
   21.00  -75.88   90.25  -70.97   70.66
   22.00  -73.71  105.25  -66.12   73.62
   23.00  -72.20  120.25  -62.03   79.88
</PRE>


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