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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>
12 Mar 1997 21:54:52 yearsecs   6126892
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.61  105.52  -56.08   58.64
    1.00  -63.64  120.52  -53.33   70.45
    2.00  -64.40  135.52  -51.94   82.07
    3.00  -65.15  150.52  -51.18   93.03
    4.00  -64.91  165.52  -49.90  103.27
    5.00  -66.08  180.52  -50.50  113.81
    6.00  -66.34  195.52  -50.71  123.80
    7.00  -66.20  210.52  -51.15  133.71
    8.00  -66.89  225.52  -52.96  143.45
    9.00  -66.37  240.52  -54.10  153.76
   10.00  -66.01  255.52  -55.79  164.36
   11.00  -65.77  270.52  -57.96  175.24
   12.00  -65.80  285.52  -60.77  186.18
   13.00  -66.06  300.52  -64.23  197.23
   14.00  -66.54  315.52  -68.27  208.74
   15.00  -67.25  330.52  -72.67  221.56
   16.00  -68.18  345.52  -77.17  237.34
   17.00  -69.26    0.52  -81.38  260.79
   18.00  -69.19   15.52  -82.77  304.18
   19.00  -68.55   30.52  -80.26  345.12
   20.00  -67.34   45.52  -75.24    7.86
   21.00  -66.28   60.52  -69.93   23.08
   22.00  -65.19   75.52  -64.73   35.40
   23.00  -64.15   90.52  -59.93   46.87
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.60  105.52  -64.15   70.00
    1.00  -72.72  120.52  -62.48   80.74
    2.00  -73.70  135.52  -61.35   90.42
    3.00  -75.89  150.52  -61.99  100.58
    4.00  -78.38  165.52  -63.48  109.87
    5.00  -79.12  180.52  -63.71  117.07
    6.00  -78.50  195.52  -62.95  123.81
    7.00  -77.89  210.52  -62.66  130.98
    8.00  -78.66  225.52  -64.17  137.57
    9.00  -78.36  240.52  -65.04  144.70
   10.00  -78.42  255.52  -66.65  151.39
   11.00  -78.27  270.52  -68.43  158.26
   12.00  -78.07  285.52  -70.56  165.07
   13.00  -77.87  300.52  -73.04  171.69
   14.00  -77.96  315.52  -75.97  176.81
   15.00  -77.58  330.52  -78.99  183.11
   16.00  -77.56  345.52  -82.31  185.90
   17.00  -76.47    0.52  -85.88  196.87
   18.00  -76.43   15.52  -89.29  137.13
   19.00  -76.73   30.52  -86.07   56.40
   20.00  -75.98   45.52  -82.02   50.02
   21.00  -74.04   60.52  -76.99   47.46
   22.00  -72.89   75.52  -72.19   53.43
   23.00  -71.88   90.52  -67.66   60.84
</PRE>


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