phone spacing 220 feet, inner offset 220 feet survey=land area=San_Juaquin source=Vibroseis spread=offend n1=1550 d1=.002 f1=.002 label1="Time (sec)" n2=48 d2=.067056 f2=.067056 label2="Offset (km)" n3=1 title="Oz 23" plottpow=-1.182129