Synopsis
		sfpick3 < scn.rsf > pik.rsf vel1=o2 vel2=o3 rect1=1 niter=100 an1=1. an2=1. gate1=3 gate2=3 smooth=y

Parameters
		float an1=1.   float an2=1. axes anisotropy   int gate1=3   int gate2=3 picking gate   int niter=100 number of iterations   int rect1=1 smoothing radius   bool smooth=y [y/n] if apply smoothing   float vel1=o2   float vel2=o3 surface velocity

Used In
		JLU          gvdseisint/vti   TCCS          scan3/noncwavg-1 scan3/realdata