We see occasional excess nosie around 32.5 Hz in the h(t). This feature has been there for a long time, was present even in O3. They were identified before and were a-logged, for example 52796 (?), 73601. The first plot in this a-log shows the feature in last week's data. A corresponding featuer is seen in almost all the accelerometers and ground seismometers in the corner station (the second and third plots show the HAM6 and PSL accelerometers data while the fourth plot shows the HAM2 STS). In addition to the 32.5 Hz feature, if we squint, we can also a 38-39 Hz feature in h(t) which seems to presnt only in the vibration sensors in the PSL/HAM1/HAM2 region, so maybe there is a coupling is in that region. Not all features we see in those sensors show up in h(t), not atleast very strong, so maybe something special about these frequencies.