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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>
20 Mar 1997 01:36:00 yearsecs   6744960
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.28   49.77  -70.56    7.08
    1.00  -65.06   64.77  -67.40   24.98
    2.00  -66.09   79.77  -64.64   40.81
    3.00  -67.14   94.77  -62.13   55.00
    4.00  -67.02  109.77  -58.79   66.16
    5.00  -68.03  124.77  -57.17   77.81
    6.00  -68.42  139.77  -55.57   88.02
    7.00  -69.39  154.77  -55.14   98.26
    8.00  -70.59  169.77  -55.42  108.17
    9.00  -70.18  184.77  -54.54  117.26
   10.00  -69.41  199.77  -53.84  126.48
   11.00  -68.76  214.77  -53.88  135.95
   12.00  -68.43  229.77  -54.80  145.62
   13.00  -68.40  244.77  -56.47  155.40
   14.00  -68.67  259.77  -58.78  165.11
   15.00  -69.22  274.77  -61.71  174.53
   16.00  -69.77  289.77  -65.05  183.83
   17.00  -69.78  304.77  -68.35  194.20
   18.00  -69.84  319.77  -72.02  205.51
   19.00  -69.04  334.77  -75.21  221.57
   20.00  -68.12  349.77  -78.11  243.96
   21.00  -67.38    4.77  -80.17  276.18
   22.00  -66.81   19.77  -79.91  316.25
   23.00  -65.70   34.77  -76.12  347.61
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.28   49.77  -76.07   18.79
    1.00  -70.55   64.77  -73.08   38.06
    2.00  -71.43   79.77  -69.88   52.35
    3.00  -77.37   94.77  -71.11   76.91
    4.00  -79.43  109.77  -70.01   88.16
    5.00  -79.88  124.77  -68.36   94.65
    6.00  -79.17  139.77  -66.12   99.37
    7.00  -78.08  154.77  -63.83  104.68
    8.00  -78.15  169.77  -63.06  111.70
    9.00  -78.14  184.77  -62.62  118.74
   10.00  -77.87  199.77  -62.36  125.85
   11.00  -77.92  214.77  -62.86  132.99
   12.00  -78.18  229.77  -64.00  139.90
   13.00  -77.96  244.77  -65.09  147.10
   14.00  -77.75  259.77  -66.59  154.36
   15.00  -77.53  274.77  -68.49  161.61
   16.00  -77.31  289.77  -70.77  168.78
   17.00  -77.08  304.77  -73.42  175.89
   18.00  -78.25  319.77  -76.93  176.89
   19.00  -78.54  334.77  -80.06  178.36
   20.00  -77.68  349.77  -83.27  184.69
   21.00  -75.71    4.77  -86.95  210.64
   22.00  -72.61   19.77  -86.32  325.06
   23.00  -70.70   34.77  -81.49    1.52
</PRE>


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