Located our mobile STS2 (C) as close to the ITMY STS2 (B) as possible which means about 18in center to center.

The two graphs attached show low wind (~5mph) and high wind (~20mph) graphs of ASD and coherence between the two huddling STSs.  Good coherence moves well down during the windy conditions as the ground motion increases to above the instrument noise.  Coherence above 0.9 moves from 50ish mHz to 5 or 10mHz (depending on dof.)  Tomorrow I'll move the roaming machine to around BSC8 and then wait for calm and wind.