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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>
04 Apr 1997 10:33:27 yearsecs   8073207
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.05  274.09  -50.64  185.00
    1.00  -57.35  289.09  -53.77  197.43
    2.00  -57.62  304.09  -57.26  210.30
    3.00  -57.87  319.09  -61.13  224.18
    4.00  -58.11  334.09  -65.01  240.24
    5.00  -58.74  349.09  -68.87  259.59
    6.00  -60.54    4.09  -72.89  283.67
    7.00  -61.75   19.09  -74.16  313.91
    8.00  -61.97   34.09  -71.81  341.85
    9.00  -61.49   49.09  -67.27    2.08
   10.00  -61.20   64.09  -62.85   17.99
   11.00  -61.11   79.09  -59.03   32.25
   12.00  -61.23   94.09  -55.83   45.97
   13.00  -61.55  109.09  -53.15   59.25
   14.00  -62.09  124.09  -51.11   71.80
   15.00  -62.84  139.09  -49.90   83.55
   16.00  -63.80  154.09  -49.50   94.82
   17.00  -64.97  169.09  -49.78  105.76
   18.00  -65.23  184.09  -49.59  116.07
   19.00  -63.88  199.09  -48.37  126.21
   20.00  -62.21  214.09  -47.54  136.84
   21.00  -60.99  229.09  -47.75  147.96
   22.00  -59.13  244.09  -47.81  159.93
   23.00  -58.01  259.09  -48.97  172.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.61  274.09  -61.07  174.79
    1.00  -69.52  289.09  -64.70  183.75
    2.00  -70.38  304.09  -68.66  192.55
    3.00  -70.76  319.09  -72.54  202.67
    4.00  -71.45  334.09  -76.82  213.23
    5.00  -72.57  349.09  -81.40  224.24
    6.00  -73.42    4.09  -85.69  244.58
    7.00  -72.45   19.09  -86.21  321.00
    8.00  -72.57   34.09  -83.32   10.77
    9.00  -73.08   49.09  -79.52   33.72
   10.00  -72.63   64.09  -75.01   44.38
   11.00  -72.36   79.09  -70.85   54.33
   12.00  -72.22   94.09  -67.15   63.92
   13.00  -72.12  109.09  -63.93   73.07
   14.00  -72.22  124.09  -61.45   82.17
   15.00  -72.11  139.09  -59.36   90.80
   16.00  -72.57  154.09  -58.39   99.88
   17.00  -72.81  169.09  -57.69  108.67
   18.00  -72.31  184.09  -56.70  117.21
   19.00  -71.17  199.09  -55.58  125.98
   20.00  -70.70  214.09  -55.72  135.04
   21.00  -69.73  229.09  -55.95  144.61
   22.00  -69.74  244.09  -57.59  154.06
   23.00  -68.60  259.09  -58.62  164.71
</PRE>


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