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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 19:34:14 yearsecs  22966454
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.50  135.18  -53.13   82.66
    1.00  -64.95  150.18  -51.00   92.68
    2.00  -65.96  165.18  -50.98  103.43
    3.00  -66.96  180.18  -51.39  113.75
    4.00  -66.71  195.18  -51.07  123.58
    5.00  -67.53  210.18  -52.42  133.27
    6.00  -67.55  225.18  -53.54  142.99
    7.00  -67.50  240.18  -55.08  152.90
    8.00  -68.25  255.18  -57.74  162.40
    9.00  -68.12  270.18  -59.97  172.66
   10.00  -67.77  285.18  -62.42  183.50
   11.00  -67.58  300.18  -65.46  194.67
   12.00  -67.61  315.18  -69.09  206.47
   13.00  -67.87  330.18  -73.10  219.77
   14.00  -68.35  345.18  -77.24  236.35
   15.00  -69.06    0.18  -81.14  260.69
   16.00  -69.92   15.18  -83.59  302.68
   17.00  -70.64   30.18  -82.51  351.29
   18.00  -70.50   45.18  -78.53   17.31
   19.00  -69.95   60.18  -73.80   32.06
   20.00  -69.00   75.18  -68.82   42.85
   21.00  -68.05   90.18  -64.13   52.98
   22.00  -67.20  105.18  -59.91   63.02
   23.00  -66.36  120.18  -56.21   72.91
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.95  135.18  -58.67   87.37
    1.00  -72.16  150.18  -58.31   97.32
    2.00  -73.33  165.18  -58.41  106.68
    3.00  -77.93  180.18  -62.49  116.51
    4.00  -80.11  195.18  -64.61  123.65
    5.00  -80.58  210.18  -65.36  129.83
    6.00  -80.12  225.18  -65.57  136.32
    7.00  -79.67  240.18  -66.22  143.06
    8.00  -80.07  255.18  -67.98  148.64
    9.00  -79.97  270.18  -69.66  154.59
   10.00  -80.18  285.18  -71.83  159.37
   11.00  -80.11  300.18  -74.10  164.11
   12.00  -80.37  315.18  -76.67  166.33
   13.00  -80.15  330.18  -79.25  168.69
   14.00  -79.72  345.18  -82.01  169.17
   15.00  -79.15    0.18  -84.86  162.91
   16.00  -78.95   15.18  -86.59  127.71
   17.00  -78.39   30.18  -85.55   80.37
   18.00  -78.60   45.18  -82.33   71.48
   19.00  -77.96   60.18  -78.87   67.38
   20.00  -77.06   75.18  -75.06   67.85
   21.00  -75.20   90.18  -70.48   68.75
   22.00  -73.11  105.18  -65.60   72.46
   23.00  -71.65  120.18  -61.50   79.09
</PRE>


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