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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>
23 Apr 1997 03:11:16 yearsecs   9688276
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.11   22.80  -72.96  321.26
    1.00  -62.19   37.80  -71.18  347.85
    2.00  -63.21   52.80  -68.43    8.92
    3.00  -66.65   67.80  -68.36   31.08
    4.00  -66.45   82.80  -64.28   44.08
    5.00  -67.34   97.80  -61.65   57.67
    6.00  -67.41  112.80  -58.61   68.84
    7.00  -67.45  127.80  -56.12   79.28
    8.00  -67.96  142.80  -54.78   89.65
    9.00  -67.71  157.80  -53.21   99.29
   10.00  -67.32  172.80  -51.99  108.99
   11.00  -67.13  187.80  -51.45  118.78
   12.00  -67.17  202.80  -51.73  128.54
   13.00  -67.43  217.80  -52.82  138.23
   14.00  -67.92  232.80  -54.64  147.82
   15.00  -68.63  247.80  -57.06  157.23
   16.00  -69.54  262.80  -60.01  166.28
   17.00  -70.42  277.80  -63.28  174.99
   18.00  -70.21  292.80  -66.04  185.16
   19.00  -69.68  307.80  -68.97  196.61
   20.00  -68.67  322.80  -71.88  210.84
   21.00  -66.66  337.80  -73.99  231.15
   22.00  -64.11  352.80  -74.98  258.26
   23.00  -62.10    7.80  -74.82  289.89
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.11   22.80  -78.80  323.36
    1.00  -67.19   37.80  -77.09  355.79
    2.00  -68.21   52.80  -74.14   19.26
    3.00  -73.48   67.80  -74.66   50.19
    4.00  -76.13   82.80  -72.78   67.84
    5.00  -76.19   97.80  -69.65   75.12
    6.00  -75.94  112.80  -66.70   81.84
    7.00  -75.40  127.80  -63.96   88.46
    8.00  -76.09  142.80  -62.88   96.89
    9.00  -75.92  157.80  -61.47  104.33
   10.00  -76.32  172.80  -61.08  112.24
   11.00  -76.09  187.80  -60.49  119.86
   12.00  -76.31  202.80  -60.83  127.55
   13.00  -76.07  217.80  -61.19  135.30
   14.00  -76.11  232.80  -62.28  142.98
   15.00  -75.82  247.80  -63.50  150.98
   16.00  -76.13  262.80  -65.65  158.28
   17.00  -75.76  277.80  -67.62  166.49
   18.00  -76.09  292.80  -70.50  173.22
   19.00  -75.51  307.80  -73.13  182.16
   20.00  -74.15  322.80  -75.72  194.90
   21.00  -71.66  337.80  -77.91  216.00
   22.00  -69.11  352.80  -79.66  245.82
   23.00  -67.10    7.80  -80.20  284.29
</PRE>


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