=== 2019/3/4(Mon.) === === Schedule === * Center * --(2/26-27: Venting)-- * 2/28-3/5: Fixing PRMs and SRMs * 3/2-5: Re-alignment * 3/6-7: Closing * Yend * --(1/25-2/20: Yend Pcal finalization)-- * 2/25-3/4: Yend WAB finalization * 3/5-6: Closing * 3/6~ : Yend pumpdown 3/6~ * 3/7,8: leak test * Xend * --(2/11-2/14: Xend NAB installation)-- * --(2/21: Removing FC, Payload release)-- * --(2/27: ETMX release)-- * 2/23-3/10: Xend Pcal finalization 1 * Periscope installation * Beam position by IR and Green * 3/5: ETMX aligned * 3/5-3/10: Xend Pcal finalization 2 * 3/11,12 Xend WAB finalization * 3/19,20, Heatlink etc. * 3/22 Pumping down * Leak test * 3/11~ : Night work starts * 2/18-3/22 DRMI commissioning * 3/11-4/5 Y arm commissioning * 3/25-4/5 FPMI commissioning ==== Note ==== === Weekend === ==== Report of work ==== * Type B: Drifts of relative yaw on SRM are still lasting, but getting slower. * Type Bp: GAS filter keystone was almost touching something. PR3 looks healthy. * PR2 has some broken circuit for sensors. * One of the magnet on PRM was off. * some works inside the chamber still remains. * Type A: Alignment of IR to ETMX, and to ETMY, and Green to both ETM were done on Friday. * Type A: Some ETMX LVDT signals showed a 584Hz oscillation. It will be traced today. * CAL: EX alignment was done. * EX cryopayload had some strange signal. Connection will be checked again. * PEM: Ground vibration measurement is being continued. Air Conditioner was not a cause of the vibration. ==== Work plan ====