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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 13:41:46 yearsecs   9639706
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.88  230.29  -49.68  148.18
    1.00  -63.30  245.29  -51.89  158.76
    2.00  -63.89  260.29  -54.61  169.34
    3.00  -64.47  275.29  -57.65  179.97
    4.00  -64.19  290.29  -60.32  191.69
    5.00  -65.48  305.29  -64.84  201.89
    6.00  -65.82  320.29  -68.85  214.34
    7.00  -65.69  335.29  -72.52  230.23
    8.00  -66.39  350.29  -76.66  249.40
    9.00  -65.78    5.29  -78.58  280.27
   10.00  -65.37   20.29  -78.22  317.01
   11.00  -65.18   35.29  -75.40  347.68
   12.00  -65.21   50.29  -71.53    9.42
   13.00  -65.47   65.29  -67.73   26.27
   14.00  -65.95   80.29  -64.37   41.02
   15.00  -66.66   95.29  -61.52   54.65
   16.00  -67.59  110.29  -59.27   67.28
   17.00  -68.73  125.29  -57.80   78.89
   18.00  -68.74  140.29  -55.84   88.62
   19.00  -68.06  155.29  -53.75   97.84
   20.00  -66.75  170.29  -51.53  107.15
   21.00  -65.66  185.29  -50.00  116.94
   22.00  -64.50  200.29  -49.02  127.02
   23.00  -63.35  215.29  -48.72  137.47
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.74  230.29  -58.88  143.80
    1.00  -73.87  245.29  -61.46  151.53
    2.00  -74.85  260.29  -64.22  158.74
    3.00  -76.10  275.29  -67.48  164.59
    4.00  -78.62  290.29  -71.69  165.53
    5.00  -79.53  305.29  -74.71  167.59
    6.00  -78.99  320.29  -77.26  173.60
    7.00  -78.77  335.29  -80.18  177.01
    8.00  -79.25  350.29  -83.08  170.67
    9.00  -78.94    5.29  -85.78  156.50
   10.00  -78.99   20.29  -86.41  110.35
   11.00  -78.80   35.29  -84.35   78.68
   12.00  -78.45   50.29  -81.20   69.61
   13.00  -78.26   65.29  -77.79   70.11
   14.00  -78.37   80.29  -74.60   74.78
   15.00  -77.96   95.29  -71.41   78.81
   16.00  -77.81  110.29  -68.68   84.55
   17.00  -76.39  125.29  -65.22   88.69
   18.00  -76.18  140.29  -63.23   95.74
   19.00  -76.79  155.29  -62.51  103.76
   20.00  -76.21  170.29  -61.07  110.91
   21.00  -74.36  185.29  -58.76  118.25
   22.00  -73.58  200.29  -58.02  126.52
   23.00  -72.83  215.29  -57.87  135.14
</PRE>


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