Reports until 16:00, Tuesday 16 April 2024
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:00, Tuesday 16 April 2024 (77219)
OPS Day Shift Summary

TITLE: 04/16 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Oli
SHIFT SUMMARY:

IFO is in NLN and COMISSONING - the squeezer is having lock issues and a team of comissioners, fellows and other staff are in the control room and working on fixing it.

19:29 UTC: Began Locking (No initial alignment)

20:15 UTC: Began Initial Alignment (after 3 IR_COMM based locklosses)

IR COMM Weirdness:

Once we started locking, ALS locked fine but IR_COMM was not found, prompting a troubleshoot of this part. There was extremely noise behavior in the relevant channel (H1:LSC-TR_X_NORM_INMON) where the usually normalized (to 1) values were showing up bizarrely high. (Screenshot 1). After initial alignment, this issue was resolved.

20:36 UTC: Initial Alignment Complete

21:21 UTC: Reached NLN

21:24 UTC: H1 is OBSERVING

21:36 UTC: Dropped out of observing due to squeezer lockloss - a team of commissioners are on the case.

22:55 UTC: Trying to get into OBSERVING without squeezing while we troubleshoot the squeezer.

LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:02 FAC Ken FCES N Electronics work 20:00
15:03 CAL Dave remote n WP11812 h1calcs cal_hash_ioc chan move 17:31
15:04 DAQ Dave Remote n DAQ Restart for cal work 17:31
15:10 VAC Jordan, Norco EY, Corner, EX N Nitrogen tank inspection 19:22
15:18 ISC Jennie LVEA N Turning off PSL Sidebands 15:23
15:19 FAC Kim, Karen FCES N Technical Cleaning 15:53
15:19 ISC Camilla LVEA N Laser Hazard Transition 15:26
15:39 TCS Camilla,. TJ LVEA YES TCS Table Work 18:49
15:39 OMC Jennie, Sheila Ctrl Rm N Aligning OMC 17:38
15:40 FAC Christina OSB Patio N Transporting pallets and moving tables 17:38
15:41 OMC Sheila LVEA YES Turning off PSL sidebands 16:40
15:45 FAC Ace Portapotty End Stations N End Station Portapotty Inspection 16:45
15:45 IAS Jason, Tyler, Ryan C LVEA YES IAS Alignment Work 18:42
15:46 LVEA HAZARD LVEA YES LVEA IS LASER HAZARD 19:11
15:53 FAC Kim EX N Technical Cleaning 16:53
15:53 FAC Karen EY N Technical Cleaning 16:39
15:54 EE Fil LVEA YES Cable tray inspection 16:23
16:08 SEI Jim FCES N HAM7 Dissassembly of CPS Cards 17:39
16:42 PEM Marc EX N Accelerometer chassis 18:50
16:48 EE Fil LVEA YES Table Tray Inspection 17:14
16:53 FAC Kim Hi-Bay N Technical Cleaning 17:34
17:09 OMC Sheila LVEA YES Turning sidebands back on 17:59
17:14 EE Fil EX, EY N Equipment Inventory 19:20
17:34 FAC Karen, Kim LVEA YES Technical Cleaning 18:44
18:49 OPS Camilla LVEA YES Detransitioning to LASER SAFE 19:19
18:54 FAC Nolan Y-Arm N Y-End Ecology Check 21:54
18:54 IAS Jason Optics Lab N Finishing up optics work 19:00
19:05 OPS TJ LVEA YES Maintenance End Sweep 19:16
20:07 FAC Ken FCES N Bolting 21:07
Images attached to this report