five knots are resolved angularly, and it is interesting to note that all four have position angles consistent with $\sim$$160^\circ \pm 10^\circ$. This result suggests that they are part of the northern outflow. This orientation does not seem to be valid for component S-1, as discussed in the next subsection. The N-1 and N-2 continuum components are the only ones in the whole region that appear to be associated with class I methanol masers (Voronkov et al. 2006).

The southern lobe
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Only the component S-1 is clearly resolved, but in contrast to the components of the northern lobe that have intrinsic position angles consistent with $\sim$$160^\circ \pm 10^\circ$, the southern lobe’s intrinsic position angle is $\sim$$40^\circ$. The misalignment between the intrinsic position angle of S-1 and the outflow axis, suggests that more than part of the main jet body, S-1 could be its working surface (e.g., Chakrabarti 1988) to the south. As we will see below, the time variability of this component could support this interpretation. On the other hand, the presence of an additional component (S-2) downstream suggests that our interpretation of S-1 as a working surface may be incorrect, or that S-2 is an independent source associated 