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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>
22 Apr 1997 13:40:18 yearsecs   9639618
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.88  230.61  -49.71  148.41
    1.00  -63.30  245.61  -51.94  159.00
    2.00  -63.89  260.61  -54.66  169.57
    3.00  -64.47  275.61  -57.71  180.21
    4.00  -64.19  290.61  -60.39  191.94
    5.00  -65.48  305.61  -64.91  202.15
    6.00  -65.82  320.61  -68.93  214.64
    7.00  -65.69  335.61  -72.60  230.61
    8.00  -66.39  350.61  -76.73  249.93
    9.00  -65.78    5.61  -78.61  281.02
   10.00  -65.37   20.61  -78.19  317.78
   11.00  -65.18   35.61  -75.32  348.24
   12.00  -65.21   50.61  -71.44    9.81
   13.00  -65.47   65.61  -67.64   26.59
   14.00  -65.95   80.61  -64.29   41.30
   15.00  -66.66   95.61  -61.44   54.91
   16.00  -67.59  110.61  -59.21   67.51
   17.00  -68.73  125.61  -57.75   79.10
   18.00  -68.74  140.61  -55.81   88.82
   19.00  -68.06  155.61  -53.73   98.05
   20.00  -66.75  170.61  -51.51  107.36
   21.00  -65.66  185.61  -50.00  117.16
   22.00  -64.50  200.61  -49.03  127.24
   23.00  -63.35  215.61  -48.75  137.70
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.75  230.61  -58.92  143.98
    1.00  -73.89  245.61  -61.51  151.70
    2.00  -74.86  260.61  -64.28  158.90
    3.00  -76.12  275.61  -67.54  164.73
    4.00  -78.63  290.61  -71.75  165.61
    5.00  -79.55  305.61  -74.77  167.62
    6.00  -79.01  320.61  -77.33  173.59
    7.00  -78.80  335.61  -80.25  176.85
    8.00  -79.26  350.61  -83.13  170.37
    9.00  -78.95    5.61  -85.82  155.67
   10.00  -79.00   20.61  -86.37  109.40
   11.00  -78.81   35.61  -84.28   78.48
   12.00  -78.46   50.61  -81.12   69.67
   13.00  -78.27   65.61  -77.72   70.23
   14.00  -78.37   80.61  -74.54   74.91
   15.00  -77.97   95.61  -71.35   78.96
   16.00  -77.81  110.61  -68.63   84.70
   17.00  -76.40  125.61  -65.18   88.86
   18.00  -76.19  140.61  -63.20   95.91
   19.00  -76.79  155.61  -62.49  103.93
   20.00  -76.22  170.61  -61.07  111.08
   21.00  -74.37  185.61  -58.76  118.43
   22.00  -73.59  200.61  -58.04  126.70
   23.00  -72.84  215.61  -57.89  135.32
</PRE>


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