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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>
12 Feb 1997 15:51:55 yearsecs   3685915
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.15  195.87  -50.53  124.03
    1.00  -65.98  210.87  -50.96  133.98
    2.00  -66.80  225.87  -52.90  143.72
    3.00  -67.61  240.87  -55.27  153.30
    4.00  -67.21  255.87  -56.91  163.70
    5.00  -67.85  270.87  -59.85  173.42
    6.00  -67.74  285.87  -62.53  184.03
    7.00  -67.89  300.87  -65.88  194.70
    8.00  -68.79  315.87  -70.23  204.67
    9.00  -68.90  330.87  -74.10  217.92
   10.00  -68.75  345.87  -77.74  236.11
   11.00  -68.56    0.87  -80.78  263.88
   12.00  -68.60   15.87  -82.11  305.48
   13.00  -68.85   30.87  -80.51  346.70
   14.00  -69.34   45.87  -77.22   14.03
   15.00  -70.04   60.87  -73.70   32.99
   16.00  -70.78   75.87  -70.31   47.77
   17.00  -71.10   90.87  -66.88   59.40
   18.00  -71.16  105.87  -63.66   69.49
   19.00  -70.56  120.87  -60.33   78.14
   20.00  -69.70  135.87  -57.33   86.62
   21.00  -68.87  150.87  -54.93   95.47
   22.00  -68.16  165.87  -53.17  104.76
   23.00  -67.26  180.87  -51.68  114.27
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.53  195.87  -56.89  124.05
    1.00  -73.58  210.87  -58.37  132.43
    2.00  -74.37  225.87  -60.06  140.42
    3.00  -79.11  240.87  -65.76  144.02
    4.00  -80.91  255.87  -68.74  147.43
    5.00  -81.28  270.87  -70.66  151.83
    6.00  -80.69  285.87  -72.23  158.09
    7.00  -79.90  300.87  -74.12  165.02
    8.00  -80.06  315.87  -76.72  167.83
    9.00  -80.01  330.87  -79.38  169.47
   10.00  -79.91  345.87  -82.08  167.47
   11.00  -79.86    0.87  -84.49  155.61
   12.00  -80.03   15.87  -85.44  124.89
   13.00  -79.82   30.87  -84.48   93.44
   14.00  -79.66   45.87  -81.97   79.60
   15.00  -79.45   60.87  -78.96   75.98
   16.00  -79.34   75.87  -75.91   77.59
   17.00  -79.12   90.87  -72.95   80.85
   18.00  -79.93  105.87  -70.95   88.12
   19.00  -80.01  120.87  -68.94   93.49
   20.00  -79.22  135.87  -66.55   97.83
   21.00  -77.51  150.87  -63.56  102.30
   22.00  -75.10  165.87  -60.16  108.01
   23.00  -73.56  180.87  -58.03  115.63
</PRE>


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