Monitoring the high proper motion thermal radio jet in HH 80-81

We present a short overview on the current status of our long term monitoring program of the thermal radio jet in the massive complex HH 80-81. Up to now, three epochs of high resolution radio imaging have been obtained in 1990.2, 1994.3 and 1995.5. The third epoch data is found to be consistent with the high velocity proper motions that we previously reported in the jet condensation pairs, and that were based on the first two epochs only.