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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 Jul 1997 13:39:40 yearsecs  18279580
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.20  233.66  -51.28  150.05
    1.00  -63.91  248.66  -52.91  160.86
    2.00  -64.81  263.66  -55.97  171.10
    3.00  -65.71  278.66  -59.36  181.22
    4.00  -65.49  293.66  -62.19  192.71
    5.00  -66.56  308.66  -66.59  202.94
    6.00  -66.75  323.66  -70.51  215.74
    7.00  -66.73  338.66  -74.26  232.04
    8.00  -67.19  353.66  -78.12  253.17
    9.00  -66.87    8.66  -80.02  286.83
   10.00  -66.45   23.66  -79.07  325.67
   11.00  -66.26   38.66  -75.83  355.20
   12.00  -66.29   53.66  -71.83   15.61
   13.00  -66.55   68.66  -68.02   31.67
   14.00  -67.03   83.66  -64.67   45.85
   15.00  -67.74   98.66  -61.86   58.94
   16.00  -68.67  113.66  -59.71   71.03
   17.00  -69.69  128.66  -58.27   82.06
   18.00  -69.55  143.66  -56.30   91.38
   19.00  -68.96  158.66  -54.42  100.49
   20.00  -67.82  173.66  -52.46  109.69
   21.00  -66.78  188.66  -51.10  119.31
   22.00  -65.75  203.66  -50.37  129.21
   23.00  -64.80  218.66  -50.38  139.47
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.89  233.66  -58.40  146.27
    1.00  -72.95  248.66  -61.03  154.29
    2.00  -73.92  263.66  -63.91  161.80
    3.00  -76.79  278.65  -68.54  164.89
    4.00  -79.11  293.66  -72.53  165.34
    5.00  -79.68  308.66  -75.35  167.93
    6.00  -79.07  323.66  -77.93  173.89
    7.00  -78.70  338.66  -80.87  177.55
    8.00  -79.17  353.66  -83.73  169.31
    9.00  -78.89    8.66  -86.24  148.88
   10.00  -79.07   23.66  -86.03  101.18
   11.00  -78.81   38.66  -83.67   76.18
   12.00  -78.72   53.66  -80.45   71.35
   13.00  -78.48   68.66  -77.11   71.99
   14.00  -78.51   83.66  -73.99   76.40
   15.00  -78.16   98.66  -70.93   80.68
   16.00  -78.22  113.66  -68.48   86.85
   17.00  -77.44  128.66  -65.74   91.92
   18.00  -77.52  143.66  -64.19   98.93
   19.00  -77.52  158.66  -63.01  106.00
   20.00  -76.67  173.66  -61.41  112.83
   21.00  -74.78  188.66  -59.15  120.14
   22.00  -73.39  203.66  -57.91  128.43
   23.00  -72.25  218.66  -57.50  137.28
</PRE>


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