set xdata time
set timefmt "%H:%M:%S"

set format x "%H:%M"

##set term png
##set output "ffmj1.png"

set title "FFMJ1"

set ylabel "meters"
###set xlabel "29-Dec-2009"
set yrange [-1.5:1.5]

plot "ppp" u 1:4 t "dH" w l 3, \
     ""    u 1:2 t "dN" w l 1, \
     ""    u 1:3 t "dE" w l 2

pause -1