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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>
18 May 1997 15:09:13 yearsecs  11891353
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.10  210.35  -49.11  133.92
    1.00  -63.95  225.35  -50.18  144.33
    2.00  -64.94  240.35  -52.77  154.39
    3.00  -65.93  255.35  -55.70  164.30
    4.00  -65.74  270.35  -57.90  175.15
    5.00  -66.76  285.35  -61.58  184.90
    6.00  -66.96  300.35  -64.97  195.77
    7.00  -67.47  315.35  -69.01  206.90
    8.00  -66.58  330.35  -72.06  222.85
    9.00  -66.84  345.35  -75.96  240.73
   10.00  -66.45    0.35  -78.62  268.07
   11.00  -66.31   15.35  -79.58  304.74
   12.00  -66.38   30.35  -77.86  340.37
   13.00  -66.66   45.35  -74.53    6.03
   14.00  -67.16   60.35  -70.94   24.87
   15.00  -67.89   75.35  -67.67   40.54
   16.00  -68.84   90.35  -64.86   54.55
   17.00  -69.84  105.35  -62.50   67.03
   18.00  -69.66  120.35  -59.53   76.72
   19.00  -69.11  135.35  -56.79   85.76
   20.00  -68.03  150.35  -54.12   94.61
   21.00  -67.00  165.35  -52.02  103.95
   22.00  -66.00  180.35  -50.42  113.68
   23.00  -64.64  195.35  -49.03  123.66
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.10  210.35  -53.95  133.10
    1.00  -70.24  225.35  -56.09  142.07
    2.00  -71.31  240.35  -58.57  150.66
    3.00  -75.11  255.35  -63.78  155.76
    4.00  -77.67  270.35  -67.95  159.34
    5.00  -78.17  285.35  -70.60  164.74
    6.00  -77.43  300.35  -72.76  172.97
    7.00  -76.77  315.35  -75.42  181.42
    8.00  -77.18  330.35  -78.84  185.25
    9.00  -77.01  345.35  -82.23  190.26
   10.00  -77.33    0.35  -85.72  184.47
   11.00  -77.06   15.35  -88.62  132.36
   12.00  -77.07   30.35  -86.05   61.90
   13.00  -76.82   45.35  -82.26   56.70
   14.00  -76.87   60.35  -78.49   61.34
   15.00  -76.51   75.35  -74.72   65.77
   16.00  -76.68   90.35  -71.52   73.01
   17.00  -76.04  105.35  -68.09   78.41
   18.00  -76.26  120.35  -65.80   86.10
   19.00  -76.09  135.35  -63.68   93.19
   20.00  -75.09  150.35  -61.21   99.78
   21.00  -72.92  165.35  -58.00  106.58
   22.00  -71.11  180.35  -55.56  114.75
   23.00  -69.64  195.35  -53.99  123.74
</PRE>


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