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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>
26 Jul 1997 18:02:00 yearsecs  17863320
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.48  161.07  -45.64   98.47
    1.00  -62.48  176.07  -47.00  109.98
    2.00  -63.92  191.07  -48.26  120.70
    3.00  -69.05  206.07  -53.70  130.43
    4.00  -68.81  221.07  -54.38  139.92
    5.00  -69.56  236.07  -56.50  149.08
    6.00  -69.68  251.07  -58.43  158.56
    7.00  -70.25  266.07  -61.14  167.65
    8.00  -71.54  281.07  -64.81  175.47
    9.00  -72.41  296.07  -68.48  183.22
   10.00  -72.71  311.07  -72.02  191.95
   11.00  -71.72  326.07  -74.97  205.44
   12.00  -71.18  341.07  -78.42  221.33
   13.00  -70.99  356.07  -81.99  243.87
   14.00  -71.11   11.07  -84.71  285.42
   15.00  -70.48   26.07  -83.17  339.82
   16.00  -69.73   41.07  -78.91    8.51
   17.00  -68.88   56.07  -73.91   24.75
   18.00  -69.72   71.07  -70.60   41.18
   19.00  -69.35   86.07  -66.40   52.31
   20.00  -68.85  101.07  -62.43   62.48
   21.00  -66.83  116.07  -57.41   70.49
   22.00  -63.43  131.07  -51.51   78.13
   23.00  -61.62  146.07  -47.92   87.93
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.48  161.07  -50.74  100.45
    1.00  -67.48  176.07  -52.03  111.18
    2.00  -68.92  191.07  -53.24  121.04
    3.00  -75.93  206.07  -60.54  129.30
    4.00  -78.43  221.07  -63.68  135.69
    5.00  -79.10  236.07  -65.35  141.92
    6.00  -78.53  251.07  -66.24  149.26
    7.00  -77.59  266.07  -67.29  157.52
    8.00  -77.70  281.07  -69.59  164.04
    9.00  -77.75  296.07  -72.16  170.27
   10.00  -77.71  311.07  -74.98  176.24
   11.00  -77.49  326.07  -78.00  182.30
   12.00  -77.41  341.07  -81.29  186.59
   13.00  -76.80  356.07  -84.78  192.95
   14.00  -76.17   11.07  -88.60  195.27
   15.00  -75.48   26.07  -87.22   32.12
   16.00  -74.73   41.07  -82.76   37.11
   17.00  -73.88   56.07  -78.10   43.57
   18.00  -74.72   71.07  -74.66   56.81
   19.00  -74.35   86.07  -70.76   64.21
   20.00  -73.85  101.07  -67.07   71.52
   21.00  -71.83  116.07  -62.37   76.86
   22.00  -68.43  131.07  -56.66   82.38
   23.00  -66.62  146.07  -53.07   90.89
</PRE>


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