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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 Apr 1997 15:41:33 yearsecs   8782893
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.94  200.35  -49.46  127.04
    1.00  -64.31  215.35  -49.65  137.31
    2.00  -65.41  230.35  -52.05  147.26
    3.00  -66.51  245.35  -54.83  156.98
    4.00  -66.33  260.35  -56.81  167.50
    5.00  -67.27  275.35  -60.13  177.16
    6.00  -67.38  290.35  -63.14  187.73
    7.00  -67.22  305.35  -66.36  199.21
    8.00  -67.88  320.35  -70.61  210.40
    9.00  -67.54  335.35  -74.14  226.15
   10.00  -67.13  350.35  -77.36  247.65
   11.00  -66.94    5.35  -79.79  278.44
   12.00  -66.98   20.35  -80.05  317.82
   13.00  -67.24   35.35  -77.74  351.60
   14.00  -67.72   50.35  -74.31   15.05
   15.00  -68.43   65.35  -70.89   32.79
   16.00  -69.36   80.35  -67.83   47.86
   17.00  -70.31   95.35  -65.11   60.94
   18.00  -70.07  110.35  -61.72   70.71
   19.00  -69.54  125.35  -58.61   79.79
   20.00  -68.51  140.35  -55.60   88.47
   21.00  -67.51  155.35  -53.19   97.57
   22.00  -66.56  170.35  -51.33  107.12
   23.00  -65.56  185.35  -49.90  116.96
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.94  200.35  -54.39  126.80
    1.00  -70.98  215.35  -56.07  135.73
    2.00  -71.99  230.35  -58.18  144.25
    3.00  -76.24  245.35  -63.60  149.28
    4.00  -78.57  260.35  -67.34  153.29
    5.00  -78.90  275.35  -69.58  158.96
    6.00  -78.17  290.35  -71.42  166.79
    7.00  -77.54  305.35  -73.78  174.64
    8.00  -77.96  320.35  -76.95  178.33
    9.00  -77.62  335.35  -80.05  184.12
   10.00  -77.92  350.35  -83.38  182.46
   11.00  -77.65    5.35  -86.66  172.81
   12.00  -77.78   20.35  -87.60  100.28
   13.00  -77.53   35.35  -84.75   64.74
   14.00  -77.56   50.35  -81.12   63.13
   15.00  -77.25   65.35  -77.43   65.06
   16.00  -77.51   80.35  -74.15   71.57
   17.00  -77.17   95.35  -70.85   76.58
   18.00  -77.50  110.35  -68.42   83.89
   19.00  -77.10  125.35  -65.86   89.86
   20.00  -76.06  140.35  -63.10   95.62
   21.00  -74.06  155.35  -59.78  101.64
   22.00  -72.10  170.35  -56.92  109.11
   23.00  -70.56  185.35  -54.92  117.67
</PRE>


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