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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>
30 Oct 1997 13:46:04 yearsecs  26142364
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.61  218.58  -47.33  140.17
    1.00  -62.22  233.58  -49.41  150.79
    2.00  -62.82  248.58  -51.90  161.43
    3.00  -63.42  263.58  -54.70  172.12
    4.00  -62.82  278.58  -56.78  184.02
    5.00  -63.99  293.58  -60.84  194.50
    6.00  -64.64  308.58  -64.89  205.86
    7.00  -64.76  323.58  -68.76  219.35
    8.00  -65.15  338.58  -72.84  235.35
    9.00  -65.19  353.58  -76.19  257.58
   10.00  -64.64    8.58  -77.62  289.32
   11.00  -64.42   23.58  -76.74  324.04
   12.00  -64.42   38.58  -73.71  351.90
   13.00  -64.66   53.58  -69.97   12.28
   14.00  -65.12   68.58  -66.45   28.80
   15.00  -65.81   83.58  -63.39   43.60
   16.00  -66.72   98.58  -60.84   57.32
   17.00  -67.86  113.58  -58.91   69.95
   18.00  -67.86  128.58  -56.43   80.19
   19.00  -67.18  143.58  -53.90   89.60
   20.00  -65.74  158.58  -51.16   98.86
   21.00  -64.62  173.58  -49.24  108.75
   22.00  -63.28  188.58  -47.61  118.92
   23.00  -62.12  203.58  -46.82  129.42
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.35  218.58  -57.59  137.20
    1.00  -73.26  233.58  -59.67  145.38
    2.00  -74.19  248.58  -62.13  153.07
    3.00  -75.07  263.58  -64.87  160.20
    4.00  -77.34  278.58  -68.94  163.72
    5.00  -78.37  293.58  -72.10  167.49
    6.00  -78.08  308.58  -74.67  173.95
    7.00  -77.56  323.58  -77.49  181.16
    8.00  -78.29  338.58  -80.83  180.31
    9.00  -78.17  353.58  -84.03  178.89
   10.00  -78.07    8.58  -86.94  158.03
   11.00  -77.81   23.58  -87.13   87.42
   12.00  -77.46   38.58  -83.99   62.62
   13.00  -77.31   53.58  -80.29   62.00
   14.00  -77.31   68.58  -76.69   66.42
   15.00  -76.86   83.58  -73.07   70.58
   16.00  -76.70   98.58  -69.88   76.77
   17.00  -75.38  113.58  -66.08   81.18
   18.00  -75.16  128.58  -63.63   88.52
   19.00  -75.72  143.58  -62.44   96.88
   20.00  -75.17  158.58  -60.67  104.19
   21.00  -73.51  173.58  -58.20  111.51
   22.00  -73.05  188.58  -57.40  119.90
   23.00  -72.20  203.58  -56.72  128.53
</PRE>


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