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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>
01 May 1997 16:54:15 yearsecs  10428855
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.88  178.74  -46.31  111.76
    1.00  -62.48  193.74  -46.86  122.48
    2.00  -63.09  208.74  -48.04  132.95
    3.00  -63.69  223.74  -49.78  143.28
    4.00  -63.15  238.74  -50.91  154.12
    5.00  -64.35  253.74  -54.03  164.25
    6.00  -65.01  268.74  -56.98  174.64
    7.00  -65.19  283.74  -59.88  185.56
    8.00  -65.75  298.74  -63.55  196.28
    9.00  -64.80  313.74  -66.31  210.08
   10.00  -65.09  328.74  -70.35  224.08
   11.00  -64.75  343.74  -73.69  243.00
   12.00  -64.74  358.74  -76.65  268.02
   13.00  -64.95   13.74  -78.09  301.29
   14.00  -65.39   28.74  -77.04  335.73
   15.00  -66.06   43.74  -74.29    2.49
   16.00  -66.96   58.74  -71.16   22.70
   17.00  -66.15   73.74  -66.25   35.57
   18.00  -65.99   88.74  -62.35   48.27
   19.00  -66.84  103.74  -59.85   61.45
   20.00  -65.96  118.74  -56.04   71.45
   21.00  -64.21  133.74  -51.97   80.66
   22.00  -63.51  148.74  -49.65   90.89
   23.00  -62.37  163.74  -47.41  101.10
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.45  178.74  -51.92  112.91
    1.00  -68.50  193.74  -52.84  122.70
    2.00  -69.55  208.74  -54.31  132.02
    3.00  -70.56  223.74  -56.26  140.95
    4.00  -73.41  238.74  -60.33  148.21
    5.00  -74.62  253.74  -63.15  155.46
    6.00  -74.03  268.74  -64.77  164.50
    7.00  -73.09  283.74  -66.57  174.56
    8.00  -73.94  298.74  -70.17  181.48
    9.00  -73.46  313.74  -73.15  191.55
   10.00  -73.27  328.74  -76.65  202.09
   11.00  -73.37  343.74  -80.51  213.84
   12.00  -73.12  358.74  -84.20  235.23
   13.00  -73.10   13.74  -87.01  290.44
   14.00  -73.27   28.74  -85.25    4.78
   15.00  -72.83   43.74  -80.86   26.68
   16.00  -72.76   58.74  -76.58   40.66
   17.00  -71.15   73.74  -71.20   47.12
   18.00  -70.99   88.74  -67.29   57.70
   19.00  -71.84  103.74  -64.73   69.29
   20.00  -71.26  118.74  -61.37   77.71
   21.00  -69.21  133.74  -57.10   84.82
   22.00  -68.62  148.74  -54.87   93.95
   23.00  -67.42  163.74  -52.54  103.06
</PRE>


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