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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>
31 May 1997 20:54:34 yearsecs  13035274
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.44  112.46  -52.40   61.94
    1.00  -62.65  127.46  -51.20   74.84
    2.00  -63.78  142.46  -50.52   86.58
    3.00  -66.38  157.46  -51.89   98.41
    4.00  -66.13  172.46  -50.81  108.41
    5.00  -66.98  187.46  -51.30  118.55
    6.00  -66.99  202.46  -51.54  128.33
    7.00  -66.86  217.46  -52.25  138.15
    8.00  -67.72  232.46  -54.42  147.69
    9.00  -67.87  247.46  -56.33  157.54
   10.00  -67.39  262.46  -58.07  168.08
   11.00  -67.10  277.46  -60.36  178.85
   12.00  -67.09  292.46  -63.34  189.67
   13.00  -67.34  307.46  -66.97  200.68
   14.00  -67.83  322.46  -71.10  212.42
   15.00  -68.54  337.46  -75.49  225.98
   16.00  -69.45  352.46  -79.88  243.99
   17.00  -70.07    7.46  -83.26  276.47
   18.00  -70.11   22.46  -83.32  327.74
   19.00  -69.58   37.46  -79.71    2.04
   20.00  -68.56   52.46  -74.60   19.85
   21.00  -66.67   67.46  -68.47   30.79
   22.00  -64.21   82.46  -61.90   39.96
   23.00  -62.33   97.46  -56.37   50.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.44  112.46  -57.68   67.42
    1.00  -67.65  127.46  -56.38   79.25
    2.00  -68.78  142.46  -55.64   90.04
    3.00  -74.12  157.46  -59.69  102.85
    4.00  -76.77  172.46  -61.55  112.28
    5.00  -77.14  187.46  -61.57  119.85
    6.00  -76.26  202.46  -60.78  127.39
    7.00  -75.53  217.46  -60.63  135.36
    8.00  -75.90  232.46  -62.05  142.97
    9.00  -75.63  247.46  -63.29  151.01
   10.00  -75.77  262.46  -65.30  158.63
   11.00  -75.51  277.46  -67.37  166.77
   12.00  -75.72  292.46  -70.18  173.94
   13.00  -75.45  307.46  -73.02  182.19
   14.00  -75.45  322.46  -76.34  189.81
   15.00  -75.12  337.46  -79.77  199.46
   16.00  -75.39  352.46  -83.66  206.77
   17.00  -75.07    7.46  -87.50  228.18
   18.00  -75.62   22.46  -88.24   31.46
   19.00  -75.23   37.46  -83.98   38.82
   20.00  -74.02   52.46  -79.19   41.57
   21.00  -71.67   67.46  -73.32   43.76
   22.00  -69.21   82.46  -67.15   49.21
   23.00  -67.33   97.46  -61.71   57.40
</PRE>


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