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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>
18 Jul 1997 11:13:52 yearsecs  17147632
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.68  265.60  -49.74  177.63
    1.00  -58.14  280.60  -52.86  189.62
    2.00  -58.60  295.60  -56.30  201.90
    3.00  -59.05  310.60  -60.19  214.74
    4.00  -59.07  325.60  -63.91  229.56
    5.00  -59.92  340.60  -68.31  246.25
    6.00  -61.57  355.60  -72.92  266.86
    7.00  -63.03   10.60  -75.94  295.22
    8.00  -62.92   25.60  -74.68  327.39
    9.00  -62.27   40.60  -70.55  352.02
   10.00  -61.84   55.60  -65.94   10.03
   11.00  -61.64   70.60  -61.76   25.03
   12.00  -61.67   85.60  -58.21   38.98
   13.00  -61.92  100.60  -55.25   52.50
   14.00  -62.40  115.60  -52.86   65.43
   15.00  -63.10  130.60  -51.22   77.53
   16.00  -64.02  145.60  -50.46   88.95
   17.00  -65.17  160.60  -50.46   99.99
   18.00  -65.33  175.60  -49.89  110.32
   19.00  -64.15  190.60  -48.49  120.39
   20.00  -62.51  205.60  -47.30  130.81
   21.00  -61.34  220.60  -47.25  141.69
   22.00  -59.59  235.60  -47.15  153.30
   23.00  -58.49  250.60  -48.11  165.27
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.44  265.60  -62.09  166.00
    1.00  -72.28  280.60  -65.34  174.02
    2.00  -73.16  295.60  -68.95  181.38
    3.00  -73.69  310.60  -72.58  188.99
    4.00  -74.79  325.60  -76.73  194.15
    5.00  -75.94  340.60  -80.85  196.24
    6.00  -76.15  355.60  -84.63  200.43
    7.00  -75.30   10.60  -88.40  231.10
    8.00  -75.43   25.60  -87.33   30.44
    9.00  -75.69   40.60  -83.26   45.18
   10.00  -75.26   55.60  -79.02   50.43
   11.00  -74.93   70.60  -74.92   57.32
   12.00  -74.70   85.60  -71.13   64.90
   13.00  -74.55  100.60  -67.77   72.74
   14.00  -74.52  115.60  -64.97   80.74
   15.00  -74.25  130.60  -62.50   88.40
   16.00  -74.47  145.60  -61.03   96.69
   17.00  -74.34  160.60  -59.71  104.72
   18.00  -74.02  175.60  -58.64  112.82
   19.00  -73.44  190.60  -57.78  121.08
   20.00  -73.06  205.60  -57.65  129.57
   21.00  -72.12  220.60  -57.51  138.46
   22.00  -72.16  235.60  -58.85  147.25
   23.00  -71.22  250.60  -59.75  156.98
</PRE>


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