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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>
20 Sep 1997 13:26:52 yearsecs  22685212
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.20  230.11  -46.14  149.31
    1.00  -59.82  245.11  -48.60  160.39
    2.00  -60.44  260.11  -51.42  171.54
    3.00  -61.05  275.11  -54.54  182.84
    4.00  -60.38  290.11  -56.81  195.57
    5.00  -61.35  305.11  -61.04  207.20
    6.00  -62.63  320.11  -65.94  219.27
    7.00  -63.49  335.11  -70.48  234.10
    8.00  -63.69  350.11  -74.05  254.52
    9.00  -63.17    5.11  -75.80  283.22
   10.00  -62.76   20.11  -75.23  316.09
   11.00  -62.57   35.11  -72.30  344.07
   12.00  -62.60   50.11  -68.41    4.84
   13.00  -62.86   65.11  -64.68   21.51
   14.00  -63.34   80.11  -61.48   36.48
   15.00  -64.05   95.11  -58.78   50.62
   16.00  -64.98  110.11  -56.62   63.92
   17.00  -66.14  125.11  -55.18   76.17
   18.00  -66.16  140.11  -53.23   86.55
   19.00  -65.36  155.11  -51.03   96.30
   20.00  -63.76  170.11  -48.51  106.09
   21.00  -62.63  185.11  -46.97  116.42
   22.00  -61.01  200.11  -45.59  127.00
   23.00  -59.88  215.11  -45.37  138.00
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.67  230.11  -58.80  143.74
    1.00  -73.36  245.11  -60.98  151.89
    2.00  -74.22  260.11  -63.65  159.44
    3.00  -74.86  275.11  -66.47  166.69
    4.00  -76.42  290.11  -70.23  171.13
    5.00  -77.53  305.11  -73.72  174.58
    6.00  -77.65  320.11  -76.79  179.63
    7.00  -77.23  335.11  -79.91  186.39
    8.00  -77.42  350.11  -83.36  187.03
    9.00  -77.48    5.11  -86.70  176.07
   10.00  -77.18   20.11  -88.19   91.99
   11.00  -76.83   35.11  -84.89   56.22
   12.00  -76.53   50.11  -80.97   55.80
   13.00  -76.41   65.11  -77.12   60.89
   14.00  -76.27   80.11  -73.47   67.02
   15.00  -75.84   95.11  -69.92   72.94
   16.00  -75.80  110.11  -67.04   80.24
   17.00  -75.02  125.11  -63.98   86.53
   18.00  -74.78  140.11  -61.89   94.08
   19.00  -74.86  155.11  -60.61  102.12
   20.00  -74.45  170.11  -59.30  109.97
   21.00  -73.27  185.11  -57.65  117.96
   22.00  -73.22  200.11  -57.66  126.44
   23.00  -72.28  215.11  -57.32  135.21
</PRE>


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