LVEA: Laser Hazard IFO: Locked Observation Bit: Undisturbed All Times in UTC (PT) 15:00 (08:00) Take over from Ed 15:00 (08:00) IFO locked at NOMINAL_LOW_NOISE, 68Mpc 15:38 (08:38) Switch to commissioning/calibration mode for commissioners 16:15 (09:15) Alarm on Instrument air MR-PT199 – Left message for Kyle & spoke to Bubba 16:25 (09:25) Bubba – Check into alarm with PT0199 16:30 (09:30) Lockloss – Due to commissioning – Put IOF in DOWN per commissioner request 17:19 (10:19) Kyle – Going to X2-8 near End-X for vacuum work 17:59 (10:59) Filiberto – Going to Mid-Y to get parts for PEM work 18:00 (11:00) IFO locked at NOMINAL_LOW_NOISE, 65Mpc 18:17 (11:17) Filiberto – Back from Mid-Y 19:26 (12:26) Fire Protection Specialist – On site working on alarm system in VPW 19:32 (12:32) Filiberto – Going into CER looking for tools 19:38 (12:38) Kyle – Leaving X2-8 going to Y2-8 on the Y-Arm 21:44 (14:44) Lockloss – Commissioners looking into cause 22:10 (15:10) IFO Locked at NOMINAL_LOW_NOISE, 65Mps 22:19 (15:19) Lockloss – Calibration activities 22:32 (15:32) Lockloss – Possibly due to Earthquake Shift Summary & Observations: Took over from Ed at 15:00 (08:00). IFO locked with good range. LLO down. Commissioners have started working on calibration. IFO was stable during the day. After first lock loss the IFO relocked at NOMINAL_LOW_NOISE in 34 minutes. 21:56 (14:56) 5.2 Mag EQ at N. Mid-Atlantic Ridge R-Wave arrival ~22:28 (15:28)