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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>
24 Oct 1997 20:00:22 yearsecs  25646422
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.04  128.76  -50.37   75.33
    1.00  -62.61  143.76  -49.17   86.80
    2.00  -63.18  158.76  -48.54   97.85
    3.00  -63.75  173.76  -48.35  108.65
    4.00  -63.30  188.76  -47.63  119.05
    5.00  -64.55  203.76  -49.20  129.37
    6.00  -65.08  218.76  -50.65  139.47
    7.00  -65.13  233.76  -52.16  149.72
    8.00  -65.40  248.76  -54.28  160.03
    9.00  -65.15  263.76  -56.29  170.90
   10.00  -64.74  278.76  -58.52  182.31
   11.00  -64.55  293.76  -61.38  193.97
   12.00  -64.58  308.76  -64.88  206.09
   13.00  -64.84  323.76  -68.87  219.39
   14.00  -65.33  338.76  -73.04  235.21
   15.00  -66.03  353.76  -77.04  256.14
   16.00  -66.97    8.76  -80.13  286.95
   17.00  -68.12   23.76  -80.95  327.86
   18.00  -68.14   38.76  -77.89  359.78
   19.00  -67.46   53.76  -73.09   18.43
   20.00  -66.07   68.76  -67.47   30.81
   21.00  -64.97   83.76  -62.44   42.34
   22.00  -63.70   98.76  -57.61   53.20
   23.00  -62.52  113.76  -53.33   64.08
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.46  128.76  -61.00   85.18
    1.00  -73.49  143.76  -60.24   94.77
    2.00  -74.45  158.76  -59.94  103.79
    3.00  -75.41  173.76  -60.12  112.34
    4.00  -77.83  188.76  -62.27  120.58
    5.00  -78.84  203.76  -63.42  127.57
    6.00  -78.42  218.76  -63.55  134.62
    7.00  -77.87  233.76  -64.01  142.03
    8.00  -78.59  248.76  -66.05  148.14
    9.00  -78.47  263.76  -67.69  154.94
   10.00  -78.44  278.76  -69.76  161.38
   11.00  -78.22  293.76  -72.04  167.99
   12.00  -77.86  308.76  -74.60  174.84
   13.00  -77.69  323.76  -77.57  180.63
   14.00  -77.74  338.76  -80.82  183.93
   15.00  -77.31  353.76  -84.20  187.70
   16.00  -77.14    8.76  -87.63  173.42
   17.00  -75.71   23.76  -87.90   35.63
   18.00  -75.47   38.76  -83.70   42.10
   19.00  -76.10   53.76  -79.87   54.34
   20.00  -75.54   68.76  -75.75   58.76
   21.00  -73.77   83.76  -70.85   61.23
   22.00  -73.20   98.76  -66.99   68.83
   23.00  -72.41  113.76  -63.34   76.34
</PRE>


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