phone spacing 25 meters, inner offset 228.50 meters
survey=marine area=NorthSea source=Airgun spread=offend
n1=1540 d1=.004 f1=.004 label1="Time (sec)"
n2=96 d2=.025 f2=.2285 label2="Offset (km)"
n3=1
title="Oz 31"
plottpow=2.823242