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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>
15 May 1997 19:06:14 yearsecs  11646374
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.75  140.26  -44.43   81.40
    1.00  -57.95  155.26  -43.38   93.12
    2.00  -58.12  170.26  -42.76  104.63
    3.00  -58.25  185.26  -42.58  115.98
    4.00  -58.35  200.26  -42.97  127.19
    5.00  -58.81  215.26  -44.35  138.30
    6.00  -60.43  230.26  -47.34  149.02
    7.00  -61.64  245.26  -50.34  159.61
    8.00  -60.70  260.26  -51.68  171.50
    9.00  -59.09  275.26  -52.76  184.50
   10.00  -59.15  290.26  -55.70  196.84
   11.00  -59.72  305.26  -59.56  209.17
   12.00  -60.32  320.26  -63.80  222.52
   13.00  -61.00  335.26  -68.14  238.08
   14.00  -61.80  350.26  -72.21  257.68
   15.00  -62.76    5.26  -75.37  283.98
   16.00  -63.88   20.26  -76.51  316.58
   17.00  -65.17   35.26  -75.39  347.62
   18.00  -65.53   50.26  -71.91   10.00
   19.00  -64.30   65.26  -66.38   24.08
   20.00  -62.79   80.26  -60.80   35.78
   21.00  -61.74   95.26  -56.17   47.65
   22.00  -59.92  110.26  -51.14   58.56
   23.00  -58.76  125.26  -47.38   70.07
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -75.04  140.26  -62.12   94.44
    1.00  -75.87  155.26  -61.60  102.99
    2.00  -76.65  170.26  -61.52  111.12
    3.00  -77.11  185.26  -61.56  118.76
    4.00  -77.79  200.26  -62.28  126.10
    5.00  -78.87  215.26  -63.83  132.79
    6.00  -79.23  230.26  -65.03  139.25
    7.00  -78.65  245.26  -65.75  146.51
    8.00  -78.80  260.26  -67.52  152.86
    9.00  -79.24  275.26  -69.81  158.16
   10.00  -79.09  290.26  -71.97  164.20
   11.00  -78.96  305.26  -74.45  169.69
   12.00  -78.57  320.26  -77.13  175.55
   13.00  -78.25  335.26  -80.13  180.20
   14.00  -78.09  350.26  -83.34  180.86
   15.00  -77.81    5.26  -86.55  170.44
   16.00  -77.94   20.26  -87.46  102.54
   17.00  -77.98   35.26  -84.66   70.01
   18.00  -77.57   50.26  -81.14   63.20
   19.00  -76.71   65.26  -77.22   62.42
   20.00  -76.34   80.26  -73.49   67.35
   21.00  -75.62   95.26  -69.72   72.46
   22.00  -75.61  110.26  -66.86   79.95
   23.00  -74.86  125.26  -63.80   86.37
</PRE>


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