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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>
25 Feb 1997 14:55:08 yearsecs   4805708
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.83  210.44  -49.82  133.88
    1.00  -65.78  225.44  -51.91  143.79
    2.00  -66.66  240.44  -54.35  153.55
    3.00  -67.55  255.44  -57.15  163.14
    4.00  -67.25  270.44  -59.25  173.74
    5.00  -68.03  285.44  -62.69  183.35
    6.00  -68.11  300.44  -65.97  194.01
    7.00  -68.68  315.44  -70.03  204.56
    8.00  -70.05  330.44  -74.88  214.30
    9.00  -70.56  345.44  -79.07  229.10
   10.00  -69.96    0.44  -82.02  257.94
   11.00  -69.42   15.44  -83.03  303.83
   12.00  -69.18   30.44  -80.94  346.68
   13.00  -69.22   45.44  -77.22   13.06
   14.00  -69.53   60.44  -73.33   31.05
   15.00  -70.10   75.44  -69.80   45.72
   16.00  -70.67   90.44  -66.59   58.23
   17.00  -70.72  105.44  -63.33   68.49
   18.00  -70.80  120.44  -60.64   78.17
   19.00  -70.07  135.44  -57.75   86.70
   20.00  -69.16  150.44  -55.26   95.39
   21.00  -68.32  165.44  -53.35  104.54
   22.00  -67.72  180.44  -52.15  114.08
   23.00  -66.24  195.44  -50.62  123.75
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.83  210.44  -54.66  133.02
    1.00  -71.03  225.44  -56.85  141.78
    2.00  -71.85  240.44  -59.07  150.34
    3.00  -77.63  255.44  -65.97  152.52
    4.00  -79.62  270.44  -69.43  155.46
    5.00  -80.04  285.44  -71.79  159.84
    6.00  -79.31  300.44  -73.77  166.95
    7.00  -78.22  315.44  -76.06  175.71
    8.00  -78.25  330.44  -79.12  179.43
    9.00  -78.28  345.44  -82.29  180.19
   10.00  -78.05    0.44  -85.49  174.75
   11.00  -78.13   15.44  -87.47  127.92
   12.00  -78.42   30.44  -85.48   80.32
   13.00  -78.23   45.44  -82.30   68.38
   14.00  -78.04   60.44  -78.83   67.91
   15.00  -77.86   75.44  -75.39   71.16
   16.00  -77.67   90.44  -72.15   76.01
   17.00  -77.47  105.44  -69.22   81.69
   18.00  -78.61  120.44  -67.84   90.45
   19.00  -78.91  135.44  -66.31   97.17
   20.00  -78.08  150.44  -64.15  102.69
   21.00  -76.16  165.44  -61.25  108.40
   22.00  -73.13  180.44  -57.60  115.28
   23.00  -71.24  195.44  -55.60  123.80
</PRE>


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