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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>
28 Mar 1997 22:07:30 yearsecs   7510050
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.87  100.17  -49.43   46.48
    1.00  -57.22  115.17  -47.26   60.30
    2.00  -57.55  130.17  -45.40   73.22
    3.00  -57.88  145.17  -44.10   85.30
    4.00  -58.21  160.17  -43.34   96.97
    5.00  -58.95  175.17  -43.45  108.53
    6.00  -60.88  190.17  -45.23  119.85
    7.00  -62.48  205.17  -47.25  130.51
    8.00  -62.11  220.17  -47.94  141.19
    9.00  -61.39  235.17  -48.82  152.27
   10.00  -60.98  250.17  -50.41  163.63
   11.00  -60.83  265.17  -52.61  175.21
   12.00  -60.93  280.17  -55.36  186.97
   13.00  -61.24  295.17  -58.68  198.88
   14.00  -61.77  310.17  -62.66  211.15
   15.00  -62.51  325.17  -67.10  224.55
   16.00  -63.47  340.17  -71.66  240.49
   17.00  -64.65  355.17  -75.95  261.45
   18.00  -64.90   10.17  -77.98  292.78
   19.00  -63.54   25.17  -75.48  326.86
   20.00  -61.89   40.17  -70.19  350.96
   21.00  -60.71   55.17  -64.59    8.01
   22.00  -58.89   70.17  -58.27   20.88
   23.00  -57.79   85.17  -53.45   33.64
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.77  100.17  -64.48   65.07
    1.00  -71.69  115.17  -62.40   76.11
    2.00  -72.56  130.17  -60.91   86.11
    3.00  -73.01  145.17  -59.62   95.13
    4.00  -73.75  160.17  -59.14  104.11
    5.00  -75.03  175.17  -59.68  112.95
    6.00  -75.33  190.17  -59.70  121.01
    7.00  -74.33  205.17  -58.90  129.12
    8.00  -74.31  220.17  -59.60  137.33
    9.00  -74.65  235.17  -61.12  145.31
   10.00  -74.12  250.17  -62.26  154.03
   11.00  -73.81  265.17  -64.04  162.80
   12.00  -73.62  280.17  -66.35  171.58
   13.00  -73.47  295.17  -69.09  180.47
   14.00  -73.51  310.17  -72.36  189.22
   15.00  -73.36  325.17  -75.81  199.28
   16.00  -73.74  340.17  -79.79  208.75
   17.00  -73.98  355.17  -83.79  222.17
   18.00  -73.59   10.17  -87.07  265.85
   19.00  -72.62   25.17  -85.49  348.12
   20.00  -72.28   40.17  -81.44   18.86
   21.00  -71.48   55.17  -76.57   32.43
   22.00  -71.60   70.17  -72.54   45.66
   23.00  -70.66   85.17  -67.85   54.42
</PRE>


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