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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>
15 Sep 1997 12:46:30 yearsecs  22250790
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.20  240.20  -45.41  157.76
    1.00  -57.43  255.20  -47.80  169.43
    2.00  -57.64  270.20  -50.50  181.39
    3.00  -57.82  285.20  -53.44  193.73
    4.00  -57.97  300.20  -56.72  206.49
    5.00  -58.51  315.20  -60.79  219.67
    6.00  -60.23  330.20  -66.18  233.17
    7.00  -61.57  345.20  -70.95  250.37
    8.00  -60.83    0.20  -72.80  275.99
    9.00  -60.62   15.20  -73.15  306.07
   10.00  -60.53   30.20  -70.90  334.37
   11.00  -60.61   45.20  -67.20  356.24
   12.00  -60.87   60.20  -63.45   13.57
   13.00  -61.32   75.20  -60.22   28.92
   14.00  -61.95   90.20  -57.52   43.48
   15.00  -62.78  105.20  -55.26   57.40
   16.00  -63.81  120.20  -53.56   70.37
   17.00  -65.04  135.20  -52.64   82.32
   18.00  -65.35  150.20  -51.41   92.92
   19.00  -64.06  165.20  -49.06  102.74
   20.00  -62.49  180.20  -46.90  112.91
   21.00  -61.25  195.20  -45.67  123.48
   22.00  -59.37  210.20  -44.52  134.46
   23.00  -58.20  225.20  -44.65  145.91
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.43  240.20  -59.58  149.77
    1.00  -73.30  255.20  -62.18  157.73
    2.00  -74.11  270.20  -65.07  165.19
    3.00  -74.54  285.20  -67.97  172.69
    4.00  -75.23  300.20  -71.37  179.08
    5.00  -76.42  315.20  -75.21  182.65
    6.00  -76.69  330.20  -78.64  187.72
    7.00  -75.81  345.20  -81.94  199.30
    8.00  -75.80    0.20  -85.76  206.55
    9.00  -76.13   15.20  -89.56  158.06
   10.00  -75.66   30.20  -86.12   39.02
   11.00  -75.35   45.20  -81.88   44.96
   12.00  -75.16   60.20  -77.74   52.48
   13.00  -75.00   75.20  -73.82   60.12
   14.00  -75.01   90.20  -70.33   68.25
   15.00  -74.85  105.20  -67.12   75.83
   16.00  -75.18  120.20  -64.84   84.23
   17.00  -75.38  135.20  -63.01   92.21
   18.00  -75.00  150.20  -61.14   99.62
   19.00  -74.11  165.20  -59.20  107.11
   20.00  -73.79  180.20  -58.28  115.31
   21.00  -73.06  195.20  -57.42  123.67
   22.00  -73.16  210.20  -57.92  132.16
   23.00  -72.31  225.20  -58.05  141.06
</PRE>


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