When I arrived: - Giant EQ tripped a lot of platforms, only a few unimportant SUS (IM2, IM3, TMS, OFI). - All SUS had been recovered - All SEI watchdogs had been recovered. - PSL activity complete. 19:36 Requested "RECOVER EQ" from ISI_CONFIG overview screen to bring all platforms back to fully isolated (ETMX manager is paused so it won't have changed.) 19:48 IMC_LOCK REQUEST: LOCKED REFL spot looked a little funny, but otherwise OK. Increased IMC WFS master gain from 0.04 to 0.4 to speed up the process. Went smoothly 19:54 Requested SEI_CONF site manager of sensor correction to go to WINDY_NO_BRSX 21:10 Opened ALS Y Shutter 21:14 UTC Tyler out of LVEA. 21:20 UTC Starting to recover the Yarm 21:51 SEI_ETMX FULLY_ISOLATED (Gate valves still closed) 22:23 SEI_CONF REQUEST: WINDY 22:44 LSC Front-end Crashes, from apparent timing glitch. Activity in CER was suspect, but all parties grilled and were not actively doing anything near the LSC computer, and in fact were "on their way out / wrapping up." Dave logs in remote and restarts the LSC front-end models. 23:03 Back up from LSC crash. thankfully not that bad! We'll see about settings loss though. 23:04 IMC back up ALSY relocked. 00:30 00:34 UTC Starting normal initial alignment sequence. Xarm gets aligned quite well, with only some small (standard-sized) tweaks to ETM and TMS. Rather immediately noticed COMM beat note was low. 00:42 UTC Paused INIT_ALIGN guardian, so that ALS_XARM and ALS_YARM hold in GREEN_WFS_OFFLOADED. 00:44 UTC Sheila & Keita go out to LVEA to align the beam(s) 01:17 UTC Sheila & Keita out, beatnote successfully recovered See LHO aLOG 51626 01:31 UTC Had to manually intervene to get PRC align to work Push ALIGN_IFO to DOWN. Tweak PRM alignment, using AS_C or AS_B as metric --> get high during flashes Didn't do much to alignment, or rather alignment changes didn't have much effect Switched back to PRC_ALIGN_OFFLOADED, and it just worked. LAME. 01:38 UTC Now problems with MICH_BRIGHT_LOCKED. Going in to oscillation for quite some time. Sheila and TJ attempting to fix with ALIGN_IFO Guardian changes. 01:48 UTC Adjustments made (for the better) to how automation reacts to the problem, but problem not fixed. Needs several adjustment to loops to really make better. For now, we just got lucky by waiting long enough. 01:56 UTC Initial alignment complete. 01:59 UTC Got past locking ALS COMM, so beatnote is OK. Great! 02:01 UTC Request to stop in CHECK_MICH_FRINGES to see if guardian computer gets over loaded. It doesn't. Some confusion about CHECK_MICH_FRINGES and how it works these days. Need to talk to Jenne. 02:10 UTC Requesting DRMI. 02:34 UTC Hovering in ENGAGE_SOFT_LOOPS. Going through 4 convergences of ADS loops takes a very long time. - Initial Alignment Position - Off in Yaw - Up in Pit - Back in Yaw to final position Sheila loosened threshold on convergence from 3 to 6, changing line 3032. 02:41 UTC ENGAGE_DC_VIOLINS 02:55 UTC OBSERVING 02:52 UTC NOMINAL LOW NOISE