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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 Mar 1997 12:19:14 yearsecs   6610754
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.35  248.75  -51.48  161.81
    1.00  -62.90  263.75  -54.26  172.64
    2.00  -63.45  278.75  -57.38  183.56
    3.00  -64.00  293.75  -60.89  194.62
    4.00  -63.63  308.75  -64.02  207.44
    5.00  -64.92  323.75  -68.94  219.25
    6.00  -65.36  338.75  -73.07  235.13
    7.00  -65.48  353.75  -76.50  257.31
    8.00  -66.01    8.75  -79.11  288.19
    9.00  -65.37   23.75  -77.83  325.01
   10.00  -64.96   38.75  -74.30  353.01
   11.00  -64.77   53.75  -70.06   12.68
   12.00  -64.81   68.75  -66.05   28.39
   13.00  -65.06   83.75  -62.54   42.48
   14.00  -65.55   98.75  -59.58   55.73
   15.00  -66.26  113.75  -57.25   68.14
   16.00  -67.19  128.75  -55.72   79.67
   17.00  -68.34  143.75  -55.07   90.54
   18.00  -68.37  158.75  -53.82  100.24
   19.00  -67.68  173.75  -52.32  109.71
   20.00  -66.32  188.75  -50.64  119.32
   21.00  -65.22  203.75  -49.85  129.31
   22.00  -64.00  218.75  -49.62  139.73
   23.00  -62.81  233.75  -49.99  150.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.33  248.75  -58.70  156.57
    1.00  -71.46  263.75  -61.82  164.84
    2.00  -72.45  278.75  -65.14  172.65
    3.00  -73.47  293.75  -68.81  179.64
    4.00  -76.24  308.75  -73.75  180.33
    5.00  -77.17  323.75  -77.38  183.04
    6.00  -76.77  338.75  -80.64  190.25
    7.00  -76.14  353.75  -84.15  199.98
    8.00  -77.21    8.75  -87.58  171.86
    9.00  -76.98   23.75  -87.64   71.11
   10.00  -77.07   38.75  -83.96   58.50
   11.00  -76.91   53.75  -80.15   59.49
   12.00  -76.57   68.75  -76.31   63.15
   13.00  -76.43   83.75  -72.76   69.25
   14.00  -76.59   98.75  -69.77   76.58
   15.00  -76.18  113.75  -66.76   82.76
   16.00  -76.03  128.75  -64.43   89.84
   17.00  -74.46  143.75  -61.19   95.68
   18.00  -74.17  158.75  -59.66  103.59
   19.00  -74.88  173.75  -59.58  112.13
   20.00  -74.23  188.75  -58.59  120.13
   21.00  -72.14  203.75  -56.67  128.64
   22.00  -71.36  218.75  -56.65  137.64
   23.00  -70.43  233.75  -57.06  147.15
</PRE>


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