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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>
06 Apr 1997 11:50:57 yearsecs   8250657
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.16  255.13  -47.53  169.52
    1.00  -57.43  270.13  -50.29  181.48
    2.00  -57.67  285.13  -53.29  193.80
    3.00  -57.89  300.13  -56.63  206.51
    4.00  -58.09  315.13  -60.37  220.06
    5.00  -58.68  330.13  -64.64  235.00
    6.00  -60.43  345.13  -69.80  251.81
    7.00  -61.28    0.13  -73.27  275.40
    8.00  -61.56   15.13  -74.23  305.68
    9.00  -61.18   30.13  -71.72  334.66
   10.00  -60.98   45.13  -67.70  356.58
   11.00  -60.96   60.13  -63.59   13.63
   12.00  -61.14   75.13  -60.01   28.61
   13.00  -61.51   90.13  -57.02   42.83
   14.00  -62.09  105.13  -54.52   56.54
   15.00  -62.87  120.13  -52.58   69.43
   16.00  -63.85  135.13  -51.42   81.39
   17.00  -65.05  150.13  -51.10   92.71
   18.00  -65.33  165.13  -50.34  103.16
   19.00  -64.01  180.13  -48.43  113.15
   20.00  -62.37  195.13  -46.78  123.46
   21.00  -61.14  210.13  -46.23  134.18
   22.00  -59.28  225.13  -45.69  145.56
   23.00  -58.13  240.13  -46.31  157.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.47  255.13  -61.45  158.55
    1.00  -73.35  270.13  -64.43  166.25
    2.00  -74.19  285.13  -67.69  173.35
    3.00  -74.64  300.13  -70.95  180.56
    4.00  -75.49  315.13  -74.70  185.93
    5.00  -76.51  330.13  -78.57  188.59
    6.00  -76.77  345.13  -82.14  192.09
    7.00  -75.85    0.13  -85.75  205.79
    8.00  -75.83   15.13  -89.73  205.06
    9.00  -76.14   30.13  -86.20   46.84
   10.00  -75.66   45.13  -82.01   47.30
   11.00  -75.34   60.13  -77.85   53.31
   12.00  -75.14   75.13  -73.93   60.57
   13.00  -74.96   90.13  -70.31   68.09
   14.00  -74.97  105.13  -67.23   76.03
   15.00  -74.79  120.13  -64.50   83.59
   16.00  -75.11  135.13  -62.77   91.85
   17.00  -75.32  150.13  -61.46   99.87
   18.00  -74.96  165.13  -60.06  107.54
   19.00  -74.08  180.13  -58.57  115.35
   20.00  -73.77  195.13  -58.14  123.63
   21.00  -73.05  210.13  -57.81  132.15
   22.00  -73.16  225.13  -58.85  140.62
   23.00  -72.34  240.13  -59.49  149.80
</PRE>


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