Locked and Observing for most of the first half of the shift. 

   Jenne's IMC-VCO Sweep finished at 10:22 (03:22). Craig wanted to run some short injections and Violin ETM-X Mode-9 flagged as ringing up. Dropped out of Observing at 10:27 to run injections. At 10:38 took VIOLIN_DAMPING to DAMPING_ON_SIMPLE and set Mode-9 gain to -3. Could see damping engaging;  at 10:40 went back to DAMPING_ON_DC. 

   NLN at 10:40. Had a few Violin Mode growing messages that bumped the IFO into Commissioning. Craig unmonitored these to clear SDF. Back in Observing at 10:45.. 

   All OK and normal Observing.