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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>
23 Sep 1997 19:33:00 yearsecs  22966380
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.50  135.48  -53.09   82.88
    1.00  -64.95  150.48  -50.97   92.89
    2.00  -65.96  165.48  -50.96  103.64
    3.00  -66.96  180.48  -51.39  113.96
    4.00  -66.71  195.48  -51.08  123.78
    5.00  -67.53  210.48  -52.43  133.46
    6.00  -67.55  225.48  -53.57  143.19
    7.00  -67.50  240.48  -55.12  153.11
    8.00  -68.25  255.48  -57.78  162.60
    9.00  -68.12  270.48  -60.02  172.87
   10.00  -67.77  285.48  -62.48  183.72
   11.00  -67.58  300.48  -65.53  194.90
   12.00  -67.61  315.48  -69.17  206.72
   13.00  -67.87  330.48  -73.18  220.08
   14.00  -68.35  345.48  -77.31  236.78
   15.00  -69.06    0.48  -81.19  261.39
   16.00  -69.92   15.48  -83.58  303.75
   17.00  -70.64   30.48  -82.44  352.02
   18.00  -70.50   45.48  -78.44   17.71
   19.00  -69.95   60.48  -73.72   32.35
   20.00  -69.00   75.48  -68.74   43.10
   21.00  -68.05   90.48  -64.06   53.22
   22.00  -67.20  105.48  -59.84   63.25
   23.00  -66.36  120.48  -56.16   73.12
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.89  135.48  -58.57   87.49
    1.00  -72.12  150.48  -58.24   97.46
    2.00  -73.30  165.48  -58.36  106.84
    3.00  -77.91  180.48  -62.47  116.65
    4.00  -80.11  195.48  -64.61  123.78
    5.00  -80.58  210.48  -65.37  129.95
    6.00  -80.13  225.48  -65.60  136.44
    7.00  -79.70  240.48  -66.26  143.17
    8.00  -80.10  255.48  -68.04  148.71
    9.00  -80.01  270.48  -69.72  154.63
   10.00  -80.22  285.48  -71.90  159.33
   11.00  -80.17  300.48  -74.17  163.96
   12.00  -80.46  315.48  -76.74  165.98
   13.00  -80.24  330.48  -79.31  168.16
   14.00  -79.77  345.48  -82.05  168.63
   15.00  -79.18    0.48  -84.89  162.22
   16.00  -78.95   15.48  -86.59  126.64
   17.00  -78.36   30.48  -85.51   79.58
   18.00  -78.55   45.48  -82.27   70.97
   19.00  -77.87   60.48  -78.77   66.94
   20.00  -76.98   75.48  -74.94   67.64
   21.00  -75.12   90.48  -70.35   68.69
   22.00  -73.04  105.48  -65.47   72.50
   23.00  -71.58  120.48  -61.39   79.19
</PRE>


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