1 inner offset zero trace (49) added; source at trace 49
phone spacing 50 meters, inner offset 50 meters
survey=land area=Alberta source=Dynamite spread=split
n1=2000 d1=.002 f1=.002 label1="Time (sec)"
n2=97 d2=.050 f2=-2.400 label2="Offset (km)"
n3=1
title="Oz 25" 
plottpow=3.191650