Non-sequential trace. Src# refers to the object number of the desired source. If Src# is zero, all sNc(aGvy
sources will be traced. If Splt? is non-zero, then splitting is on. If Scat? is non-zero, then scattering gYA|JFi
is on. If Pol? is non-zero then polarization will be used. If splitting is on polarization is automatically ^o_2=91
selected. If IgEr? is non-zero, then errors will be ignored