set term png  large size SIZE
	set title "Greg's satellite link stats, RANGE, UNsmoothed"
	set xlabel "Date"
	set ylabel "number of systems"
	set xdata time	
	set timefmt "%s"
	set format x "%H:%M\n%d%h"
	set yrange [-4:8]
	set y2range [0:3]
	set y2label "TCP speed" 3
	set y2tics axis
	set rmargin 10
plot "/var/tmp/satlinkstats" using ($1 + TZOFFSET - 946684800):($2) \
          title "satellite link status" with linesSMOOTH, \
     "/var/tmp/satlinkstats" using ($1 + TZOFFSET - 946684800):($3) \
          title "net connectivity (0 to 5)" with linesSMOOTH, \
     "/var/tmp/sattcpstats" using ($1 + TZOFFSET - 946684800):(4 / $2 - 4) \
          title "TCP speed" with linesSMOOTH