We were wondering whether the auxiliary noise depends on the TCS state or PR3 spot position. Last night we had a ringheater change with several short locks over the night, and tonight we had some alignment change.

Attached are AUX spectra from last night, from early tonight, and just now. For some reason the early tonight spectra were significantly better (albeit not quite O1 quality). We could not correlate it with alignment or heating in a systematic way.