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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>
04 May 1997 12:56:31 yearsecs  10673791
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.24  240.35  -50.26  155.70
    1.00  -62.79  255.35  -52.85  166.44
    2.00  -63.36  270.35  -55.78  177.25
    3.00  -63.91  285.35  -59.06  188.17
    4.00  -63.51  300.35  -61.92  200.53
    5.00  -64.78  315.35  -66.69  211.55
    6.00  -65.26  330.35  -70.91  225.49
    7.00  -65.25  345.35  -74.52  244.29
    8.00  -65.64    0.35  -77.80  269.67
    9.00  -65.29   15.35  -78.44  305.06
   10.00  -64.88   30.35  -76.13  338.29
   11.00  -64.69   45.35  -72.26    2.12
   12.00  -64.72   60.35  -68.20   19.83
   13.00  -64.98   75.35  -64.54   34.88
   14.00  -65.47   90.35  -61.41   48.75
   15.00  -66.18  105.35  -58.82   61.76
   16.00  -67.11  120.35  -56.95   73.82
   17.00  -68.26  135.35  -55.93   85.02
   18.00  -68.29  150.35  -54.39   94.77
   19.00  -67.60  165.35  -52.63  104.19
   20.00  -66.23  180.35  -50.66  113.72
   21.00  -65.13  195.35  -49.51  123.66
   22.00  -63.89  210.35  -48.91  133.95
   23.00  -62.71  225.35  -49.00  144.71
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.16  240.35  -59.35  150.06
    1.00  -73.24  255.35  -62.15  157.88
    2.00  -74.21  270.35  -65.17  165.13
    3.00  -75.19  285.35  -68.49  171.49
    4.00  -77.70  300.35  -72.92  172.13
    5.00  -78.27  315.35  -76.06  175.46
    6.00  -78.20  330.35  -79.09  179.71
    7.00  -77.57  345.35  -82.27  185.81
    8.00  -78.45    0.35  -85.28  170.14
    9.00  -78.20   15.35  -87.40  128.27
   10.00  -78.21   30.35  -85.61   77.99
   11.00  -78.02   45.35  -82.34   66.67
   12.00  -77.66   60.35  -78.75   65.74
   13.00  -77.50   75.35  -75.24   69.68
   14.00  -77.60   90.35  -72.13   75.77
   15.00  -77.18  105.35  -69.01   80.97
   16.00  -77.01  120.35  -66.47   87.40
   17.00  -75.54  135.35  -63.15   92.48
   18.00  -75.31  150.35  -61.43   99.97
   19.00  -75.99  165.35  -61.08  108.25
   20.00  -75.43  180.35  -59.94  115.83
   21.00  -73.59  195.35  -57.96  123.75
   22.00  -72.95  210.35  -57.73  132.29
   23.00  -72.17  225.35  -57.91  141.22
</PRE>


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