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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
09 Apr 1997 18:01:40 yearsecs   8532100
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.13  160.27  -50.43   99.74
    1.00  -64.86  175.27  -49.42  109.98
    2.00  -65.88  190.27  -50.21  120.30
    3.00  -66.91  205.27  -51.57  130.17
    4.00  -66.66  220.27  -52.28  140.05
    5.00  -67.50  235.27  -54.52  149.65
    6.00  -67.53  250.27  -56.41  159.65
    7.00  -67.47  265.27  -58.58  169.94
    8.00  -68.20  280.27  -61.84  179.51
    9.00  -68.05  295.27  -64.76  190.33
   10.00  -67.71  310.27  -67.96  202.25
   11.00  -67.49  325.27  -71.54  215.76
   12.00  -67.53  340.27  -75.35  232.10
   13.00  -67.79  355.27  -79.00  254.52
   14.00  -68.27   10.27  -81.63  289.08
   15.00  -68.98   25.27  -81.68  333.38
   16.00  -69.85   40.27  -79.24    7.68
   17.00  -70.60   55.27  -75.77   29.29
   18.00  -70.44   70.27  -71.49   42.42
   19.00  -69.90   85.27  -67.11   52.83
   20.00  -68.93  100.27  -62.68   62.03
   21.00  -67.98  115.27  -58.73   71.28
   22.00  -67.11  130.27  -55.43   80.64
   23.00  -65.93  145.27  -52.45   89.90
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.13  160.27  -55.49  102.11
    1.00  -71.19  175.27  -55.80  111.71
    2.00  -72.14  190.27  -56.48  120.79
    3.00  -76.80  205.27  -61.39  128.71
    4.00  -79.01  220.27  -64.21  134.97
    5.00  -79.34  235.27  -65.51  141.33
    6.00  -78.63  250.27  -66.24  148.77
    7.00  -77.91  265.27  -67.44  156.60
    8.00  -78.23  280.27  -69.84  162.49
    9.00  -77.95  295.27  -72.14  169.35
   10.00  -78.04  310.27  -74.98  174.71
   11.00  -77.72  325.27  -77.90  180.95
   12.00  -77.91  340.27  -81.17  183.00
   13.00  -77.68  355.27  -84.50  183.19
   14.00  -77.66   10.27  -87.52  157.79
   15.00  -77.39   25.27  -87.09   75.42
   16.00  -77.56   40.27  -83.57   63.34
   17.00  -77.30   55.27  -79.87   62.33
   18.00  -77.85   70.27  -76.53   69.45
   19.00  -77.58   85.27  -73.15   73.72
   20.00  -76.58  100.27  -69.47   77.26
   21.00  -74.61  115.27  -65.12   80.73
   22.00  -72.47  130.27  -60.80   86.06
   23.00  -70.93  145.27  -57.53   93.45
</PRE>


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