In looking at TP01 data for the project, I see that Vheat is rock solid for soil.b, but varies by 6mV for soil.a This isn't huge, and is measured, so it shouldn't be a problem in the data. However, it is acting as though there is variable resistance on the heater cable for soil.a. We should test this probe in post-cals and/or check the Binder connector.
The Tau63 values also have events. soil.a sometimes changes from ~6.5s to ~10.5s (loosely associated with rain events). soil.b has a couple of spikes from ~8 to ~4.5 (no relation to rain). These are more than isolated events (especially for a).