IFO dropped out of Observing for Squeezer problem. ETM-Y violin mode has been ringing up since yesterday morning. This AM it was 4.02 (starting into yellow zone). Took advantage to apply -2.0 gain of damping. Mode is coming down nicely. Out of Observing at 15:41 (08:41) Switch to DAMPING_ON_SIMPLE at 15:42 (08:42) Switch back to DAMPING_ON_DC at 15:43 (08:43) Back to Observing at 15:44 (08:44)