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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
19 Sep 1997 01:38:26 yearsecs  22556306
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.33   45.40  -69.35  358.59
    1.00  -62.88   60.40  -65.96   16.73
    2.00  -63.44   75.40  -62.75   32.32
    3.00  -63.99   90.40  -59.78   46.53
    4.00  -63.61  105.40  -56.12   58.55
    5.00  -64.89  120.40  -54.66   71.57
    6.00  -65.35  135.40  -52.94   82.70
    7.00  -65.32  150.40  -51.36   93.04
    8.00  -65.72  165.40  -50.73  103.49
    9.00  -65.36  180.40  -49.78  113.59
   10.00  -64.95  195.40  -49.33  123.70
   11.00  -64.76  210.40  -49.75  133.86
   12.00  -64.79  225.40  -50.97  144.09
   13.00  -65.05  240.40  -52.87  154.37
   14.00  -65.54  255.40  -55.34  164.62
   15.00  -66.24  270.40  -58.36  174.70
   16.00  -67.17  285.40  -61.95  184.42
   17.00  -68.33  300.40  -66.14  193.62
   18.00  -68.36  315.40  -69.76  205.18
   19.00  -67.67  330.40  -72.99  220.48
   20.00  -66.30  345.40  -75.49  242.07
   21.00  -65.20    0.40  -77.37  270.56
   22.00  -63.97   15.40  -76.96  305.57
   23.00  -62.79   30.40  -73.63  336.30
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.59   45.40  -80.90   32.98
    1.00  -74.65   60.40  -77.40   50.14
    2.00  -75.59   75.40  -74.16   62.35
    3.00  -76.55   90.40  -71.42   72.65
    4.00  -78.91  105.40  -70.31   85.26
    5.00  -79.87  120.40  -68.89   93.02
    6.00  -79.39  135.40  -66.75   97.91
    7.00  -78.79  150.40  -64.84  103.43
    8.00  -79.54  165.40  -64.66  110.66
    9.00  -79.26  180.40  -63.85  117.07
   10.00  -79.24  195.40  -63.72  123.75
   11.00  -79.03  210.40  -63.81  130.52
   12.00  -78.66  225.40  -64.17  137.52
   13.00  -78.48  240.40  -65.14  144.51
   14.00  -78.54  255.40  -66.73  151.16
   15.00  -78.12  270.40  -68.30  158.49
   16.00  -77.94  285.40  -70.45  165.35
   17.00  -76.52  300.40  -72.23  175.66
   18.00  -76.30  315.40  -75.19  183.18
   19.00  -76.97  330.40  -78.78  186.34
   20.00  -76.48  345.40  -82.15  194.35
   21.00  -74.79    0.40  -85.53  220.58
   22.00  -74.22   15.40  -88.29  297.95
   23.00  -73.55   30.40  -85.03   11.48
</PRE>


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