# plot parameter for sp710.f
  set xlabel 'flight path in the Earth'
  set ylabel 'Probability'
  set xrange[0:14000]
  set yrange[1e-9:0.01]
  set logscale y
  set grid
plot 'sp710.dat' using 2:4 with histeps, \
     'sp710.dat' using 2:5 with lines lw 2