Synopsis
		sfnmo3_ort < cmp.rsf > nmod.rsf velocity=vel.rsf offset=offset.rsf half=y eps=0.01 mute=12 extend=8

input data has gathers along *4th* axis;
velocity file contains slowness squared with n2=3 (Wavg,Wcos,Wsin);
offset file contains x,y offset pairs for input data

Parameters
		float eps=0.01 stretch regularization   int extend=8 trace extension   bool half=y [y/n] if y, the second and third axes are half-offset instead of full offset   int mute=12 mute zone   string offset= auxiliary input file name   file velocity= auxiliary input file name

Used In
		TCCS          scan3/noncwavg-1 scan3/realdata