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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 Apr 1997 14:30:51 yearsecs   9297051
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.43  218.88  -45.25  140.87
    1.00  -60.07  233.88  -47.41  151.83
    2.00  -60.71  248.88  -49.97  162.80
    3.00  -61.35  263.88  -52.87  173.85
    4.00  -60.58  278.88  -54.80  186.24
    5.00  -61.56  293.88  -58.70  197.48
    6.00  -62.79  308.88  -63.29  208.69
    7.00  -63.58  323.88  -67.77  221.60
    8.00  -63.67  338.88  -71.55  238.48
    9.00  -63.32  353.88  -74.40  261.42
   10.00  -62.90    8.88  -75.75  291.55
   11.00  -62.71   23.88  -74.70  323.87
   12.00  -62.74   38.88  -71.59  350.09
   13.00  -63.00   53.88  -67.88    9.84
   14.00  -63.49   68.88  -64.46   26.23
   15.00  -64.19   83.88  -61.54   41.18
   16.00  -65.12   98.88  -59.11   55.24
   17.00  -66.28  113.88  -57.25   68.27
   18.00  -66.29  128.88  -54.78   78.94
   19.00  -65.54  143.88  -52.19   88.70
   20.00  -63.95  158.88  -49.32   98.27
   21.00  -62.83  173.88  -47.41  108.50
   22.00  -61.22  188.88  -45.56  118.95
   23.00  -60.08  203.88  -44.84  129.77
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.33  218.88  -54.71  138.38
    1.00  -69.99  233.88  -56.66  147.47
    2.00  -70.89  248.88  -59.22  156.20
    3.00  -71.54  263.88  -61.91  164.83
    4.00  -73.41  278.88  -65.94  171.21
    5.00  -74.62  293.88  -69.67  177.23
    6.00  -74.59  308.88  -72.79  185.44
    7.00  -73.79  323.88  -75.76  196.89
    8.00  -74.17  338.88  -79.68  205.51
    9.00  -74.39  353.88  -83.65  216.99
   10.00  -74.20    8.88  -87.33  250.82
   11.00  -73.91   23.88  -86.90  356.51
   12.00  -73.68   38.88  -82.80   26.50
   13.00  -73.67   53.88  -78.57   40.87
   14.00  -73.60   68.88  -74.46   51.34
   15.00  -73.18   83.88  -70.35   59.70
   16.00  -73.19   98.88  -66.96   68.89
   17.00  -72.27  113.88  -63.18   76.19
   18.00  -72.10  128.88  -60.64   84.83
   19.00  -72.38  143.88  -59.12   93.84
   20.00  -71.91  158.88  -57.38  102.25
   21.00  -70.39  173.88  -55.04  110.62
   22.00  -70.21  188.88  -54.54  119.78
   23.00  -68.97  203.88  -53.54  129.07
</PRE>


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