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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>
19 Jul 1997 19:26:00 yearsecs  17263560
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.84  137.30  -52.18   83.65
    1.00  -66.00  152.30  -51.89   94.72
    2.00  -66.77  167.30  -51.69  105.17
    3.00  -67.81  182.30  -52.20  115.31
    4.00  -67.38  197.30  -51.78  124.97
    5.00  -68.00  212.30  -52.99  134.55
    6.00  -67.88  227.30  -54.05  144.25
    7.00  -68.20  242.30  -55.98  153.90
    8.00  -69.28  257.30  -58.95  162.94
    9.00  -69.76  272.30  -61.75  172.25
   10.00  -69.62  287.30  -64.42  182.40
   11.00  -69.28  302.30  -67.37  193.38
   12.00  -69.20  317.30  -70.91  204.95
   13.00  -69.38  332.30  -74.85  218.04
   14.00  -69.80  347.30  -78.94  234.59
   15.00  -70.46    2.30  -82.83  260.37
   16.00  -71.09   17.30  -84.83  310.61
   17.00  -71.20   32.30  -82.57  358.83
   18.00  -71.33   47.30  -78.66   23.40
   19.00  -70.67   62.30  -73.87   36.25
   20.00  -69.83   77.30  -69.06   46.54
   21.00  -69.02   92.30  -64.58   56.36
   22.00  -68.18  107.30  -60.46   65.94
   23.00  -66.29  122.30  -55.79   74.34
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.84  137.30  -57.29   87.64
    1.00  -71.00  152.30  -56.96   97.75
    2.00  -71.77  167.30  -56.73  107.17
    3.00  -77.55  182.30  -62.06  117.41
    4.00  -79.52  197.30  -64.02  124.59
    5.00  -79.91  212.30  -64.76  131.00
    6.00  -79.14  227.30  -64.75  138.01
    7.00  -78.00  242.30  -64.88  145.92
    8.00  -78.01  257.30  -66.51  152.82
    9.00  -77.93  272.30  -68.43  159.70
   10.00  -77.63  287.30  -70.56  166.90
   11.00  -77.69  302.30  -73.28  172.96
   12.00  -78.04  317.30  -76.37  177.05
   13.00  -77.90  332.30  -79.44  181.78
   14.00  -77.76  347.30  -82.72  184.27
   15.00  -77.61    2.30  -86.05  178.33
   16.00  -77.47   17.30  -88.17  115.64
   17.00  -77.30   32.30  -85.53   63.70
   18.00  -78.50   47.30  -81.87   70.23
   19.00  -78.83   62.30  -78.58   72.61
   20.00  -78.03   77.30  -75.07   72.47
   21.00  -76.14   92.30  -70.73   72.37
   22.00  -73.18  107.30  -65.25   73.82
   23.00  -71.29  122.30  -60.82   79.93
</PRE>


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