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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 13:39:46 yearsecs  18279586
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.20  233.63  -51.28  150.03
    1.00  -63.91  248.63  -52.90  160.84
    2.00  -64.81  263.63  -55.96  171.08
    3.00  -65.71  278.63  -59.36  181.21
    4.00  -65.49  293.63  -62.19  192.69
    5.00  -66.56  308.63  -66.58  202.93
    6.00  -66.75  323.63  -70.50  215.72
    7.00  -66.73  338.63  -74.25  232.02
    8.00  -67.19  353.63  -78.11  253.13
    9.00  -66.87    8.63  -80.02  286.78
   10.00  -66.45   23.63  -79.08  325.62
   11.00  -66.26   38.63  -75.83  355.16
   12.00  -66.29   53.63  -71.84   15.59
   13.00  -66.55   68.63  -68.02   31.65
   14.00  -67.03   83.63  -64.67   45.83
   15.00  -67.74   98.63  -61.86   58.92
   16.00  -68.67  113.63  -59.72   71.01
   17.00  -69.69  128.63  -58.27   82.05
   18.00  -69.55  143.63  -56.30   91.37
   19.00  -68.96  158.63  -54.42  100.47
   20.00  -67.82  173.63  -52.46  109.68
   21.00  -66.78  188.63  -51.10  119.29
   22.00  -65.75  203.63  -50.37  129.20
   23.00  -64.80  218.63  -50.38  139.45
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.89  233.63  -58.40  146.25
    1.00  -72.95  248.63  -61.03  154.28
    2.00  -73.92  263.63  -63.91  161.79
    3.00  -76.79  278.63  -68.54  164.88
    4.00  -79.11  293.63  -72.53  165.34
    5.00  -79.68  308.63  -75.34  167.92
    6.00  -79.07  323.63  -77.92  173.89
    7.00  -78.70  338.63  -80.86  177.55
    8.00  -79.17  353.63  -83.72  169.32
    9.00  -78.89    8.63  -86.24  148.93
   10.00  -79.07   23.63  -86.03  101.23
   11.00  -78.81   38.63  -83.67   76.19
   12.00  -78.72   53.63  -80.46   71.35
   13.00  -78.48   68.63  -77.12   71.98
   14.00  -78.51   83.63  -74.00   76.39
   15.00  -78.16   98.63  -70.93   80.67
   16.00  -78.22  113.63  -68.49   86.84
   17.00  -77.44  128.63  -65.74   91.91
   18.00  -77.52  143.63  -64.19   98.92
   19.00  -77.52  158.63  -63.01  105.99
   20.00  -76.67  173.63  -61.41  112.82
   21.00  -74.78  188.63  -59.15  120.13
   22.00  -73.39  203.63  -57.91  128.41
   23.00  -72.25  218.63  -57.50  137.27
</PRE>


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