phone spacing 220 feet, inner offset 875 feet
survey=marine area=Off.Louisiana source=Airgun spread=offend
n1=2025 d1=.004 f1=.004 label1="Time (sec)"
n2=48 d2=.067056 f2=.26670 label2="Offset (km)"
n3=1
title="Oz 13" 
plottpow=2.149414