The STS2-B (ITMY) seismometer was exchanged yesterday for a fresh from repair unit.  Attached are ASDs, Coherences, and TFs between the three STS2s with References from Monday AM (before the change.)  There still seems to be a fuzzy picture of the situation.

Some feel the B instrument sitting on the vinyl floor is an issue, the new unit is also not under an igloo.  Also, the wind and different shapes/sizes of the building wings may have the instruments response less coherent than expected.

Generally, coherence is good with unity TFs between 150mHz to ~ 300mHz but outside of that band it is highly variable.  Even the unmolested A & C TFs are too variable from day to day (wind..?)