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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 16:50:13 yearsecs  11897413
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.97  180.19  -48.39  113.18
    1.00  -65.21  195.19  -49.59  123.56
    2.00  -66.05  210.19  -50.99  133.52
    3.00  -68.68  225.19  -54.61  142.58
    4.00  -68.38  240.19  -55.89  152.41
    5.00  -69.08  255.19  -58.47  161.72
    6.00  -69.09  270.19  -60.82  171.62
    7.00  -69.52  285.19  -63.92  181.12
    8.00  -70.63  300.19  -67.98  189.38
    9.00  -70.91  315.19  -71.71  199.32
   10.00  -71.21  330.19  -75.66  210.52
   11.00  -70.65  345.19  -79.08  228.42
   12.00  -70.42    0.19  -82.39  255.37
   13.00  -70.45   15.19  -84.17  302.40
   14.00  -70.73   30.19  -82.60  351.74
   15.00  -71.26   45.19  -79.20   20.48
   16.00  -71.78   60.19  -75.41   38.12
   17.00  -71.80   75.19  -71.38   50.02
   18.00  -71.85   90.19  -67.72   60.57
   19.00  -71.14  105.19  -63.78   69.01
   20.00  -70.25  120.19  -60.14   77.33
   21.00  -69.44  135.19  -57.14   85.96
   22.00  -67.44  150.19  -53.53   94.14
   23.00  -65.46  165.19  -50.47  103.25
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.97  180.19  -53.41  114.18
    1.00  -70.21  195.19  -54.56  123.64
    2.00  -71.05  210.19  -55.85  132.62
    3.00  -77.08  225.19  -62.62  138.48
    4.00  -79.15  240.19  -65.74  143.67
    5.00  -79.58  255.19  -67.58  149.45
    6.00  -78.80  270.19  -68.79  157.05
    7.00  -77.64  285.19  -70.22  165.97
    8.00  -77.66  300.19  -72.86  172.21
    9.00  -77.54  315.19  -75.73  178.38
   10.00  -77.52  330.19  -78.90  183.35
   11.00  -77.56  345.19  -82.24  185.88
   12.00  -77.87    0.19  -85.51  177.40
   13.00  -77.68   15.19  -87.95  130.58
   14.00  -77.49   30.19  -85.97   68.35
   15.00  -77.30   45.19  -82.36   60.64
   16.00  -77.11   60.19  -78.61   62.61
   17.00  -76.91   75.19  -74.97   67.23
   18.00  -78.11   90.19  -72.48   77.31
   19.00  -78.42  105.19  -69.99   83.93
   20.00  -77.57  120.19  -66.98   88.35
   21.00  -75.58  135.19  -63.21   92.45
   22.00  -72.44  150.19  -58.58   97.53
   23.00  -70.46  165.19  -55.52  105.31
</PRE>


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