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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>
13 Jul 1997 13:56:33 yearsecs  16725393
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.20  230.46  -50.93  147.81
    1.00  -65.29  245.46  -53.73  157.78
    2.00  -66.23  260.46  -56.73  167.67
    3.00  -67.16  275.46  -60.06  177.35
    4.00  -66.85  290.46  -62.71  188.52
    5.00  -67.61  305.46  -66.72  198.65
    6.00  -67.58  320.46  -70.39  211.13
    7.00  -67.75  335.46  -74.34  225.76
    8.00  -68.35  350.46  -78.47  244.37
    9.00  -68.40    5.46  -81.31  275.58
   10.00  -68.09   20.46  -81.29  318.84
   11.00  -67.90   35.46  -78.44  353.37
   12.00  -67.94   50.46  -74.51   15.76
   13.00  -68.20   65.46  -70.62   32.34
   14.00  -68.68   80.46  -67.14   46.49
   15.00  -69.39   95.46  -64.21   59.34
   16.00  -70.20  110.46  -61.83   70.98
   17.00  -70.78  125.46  -59.83   81.25
   18.00  -70.72  140.46  -57.82   90.36
   19.00  -70.15  155.46  -55.85   99.14
   20.00  -69.22  170.46  -54.01  108.09
   21.00  -68.32  185.46  -52.67  117.42
   22.00  -67.02  200.46  -51.50  127.03
   23.00  -65.24  215.46  -50.55  137.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.20  230.46  -55.59  145.71
    1.00  -70.33  245.46  -58.29  154.50
    2.00  -71.26  260.46  -61.15  163.02
    3.00  -76.44  275.46  -67.77  164.05
    4.00  -78.67  290.46  -71.75  165.44
    5.00  -79.04  305.46  -74.52  169.47
    6.00  -78.28  320.46  -77.08  176.95
    7.00  -77.51  335.46  -80.05  184.80
    8.00  -77.76  350.46  -83.42  183.88
    9.00  -77.64    5.46  -86.69  172.66
   10.00  -77.73   20.46  -87.64   99.06
   11.00  -77.60   35.46  -84.71   65.50
   12.00  -77.82   50.46  -81.12   65.00
   13.00  -77.59   65.46  -77.53   66.75
   14.00  -77.51   80.46  -74.13   71.61
   15.00  -77.26   95.46  -70.89   76.88
   16.00  -77.33  110.46  -68.26   83.56
   17.00  -77.07  125.46  -65.82   89.86
   18.00  -77.80  140.46  -64.76   97.81
   19.00  -77.69  155.46  -63.40  104.64
   20.00  -76.65  170.46  -61.51  111.22
   21.00  -74.57  185.46  -58.97  118.38
   22.00  -72.02  200.46  -56.46  126.73
   23.00  -70.24  215.46  -55.35  136.00
</PRE>


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