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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 May 1997 22:38:49 yearsecs  13041529
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.23   87.02  -53.64   35.88
    1.00  -58.75  102.02  -51.33   50.13
    2.00  -59.26  117.02  -49.22   63.67
    3.00  -59.78  132.02  -47.54   76.20
    4.00  -59.51  147.02  -45.64   87.53
    5.00  -60.41  162.02  -45.50   99.15
    6.00  -61.96  177.02  -46.44  110.54
    7.00  -63.13  192.02  -47.48  121.31
    8.00  -63.20  207.02  -48.04  131.74
    9.00  -62.62  222.02  -48.60  142.38
   10.00  -62.15  237.02  -49.76  153.32
   11.00  -61.95  252.02  -51.59  164.47
   12.00  -61.99  267.02  -53.98  175.80
   13.00  -62.25  282.02  -56.91  187.25
   14.00  -62.73  297.02  -60.46  198.76
   15.00  -63.44  312.02  -64.65  210.58
   16.00  -64.37  327.02  -69.28  223.54
   17.00  -65.52  342.02  -74.00  239.07
   18.00  -65.63  357.02  -77.26  263.03
   19.00  -64.60   12.02  -77.70  297.40
   20.00  -62.97   27.02  -74.50  330.19
   21.00  -61.82   42.02  -69.61  353.46
   22.00  -60.11   57.02  -63.29    9.24
   23.00  -58.99   72.02  -57.96   22.79
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.05   87.02  -70.30   63.93
    1.00  -74.83  102.02  -67.72   74.12
    2.00  -75.70  117.02  -65.81   83.49
    3.00  -76.30  132.02  -64.27   91.83
    4.00  -77.50  147.02  -63.86  100.48
    5.00  -78.62  162.02  -63.91  108.45
    6.00  -78.90  177.02  -63.57  115.42
    7.00  -78.46  192.02  -62.91  122.19
    8.00  -78.86  207.02  -63.52  129.05
    9.00  -78.86  222.02  -64.16  135.85
   10.00  -78.39  237.02  -64.77  143.06
   11.00  -77.97  252.02  -65.86  150.46
   12.00  -77.62  267.02  -67.45  157.90
   13.00  -77.39  282.02  -69.52  165.17
   14.00  -77.21  297.02  -72.01  172.19
   15.00  -76.83  312.02  -74.75  179.79
   16.00  -76.84  327.02  -77.98  185.77
   17.00  -76.41  342.02  -81.32  193.74
   18.00  -76.07  357.02  -84.98  201.85
   19.00  -75.71   12.02  -88.89  217.23
   20.00  -75.26   27.02  -86.89   28.83
   21.00  -74.38   42.02  -82.32   35.17
   22.00  -74.46   57.02  -78.20   47.08
   23.00  -73.71   72.02  -73.72   53.76
</PRE>


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