Reports until 20:09, Thursday 08 October 2026
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 20:09, Thursday 08 October 2026 (92257)
OPS Eve Shift Summary

TITLE: 10/09 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: None
SHIFT SUMMARY:

IFO is in COMMISSIONING and FIND_IR

Overall a good shift where Louis and Elenna outlined the steps that worked to get to RESONANCE - alog 92254.

Instructions after they left were to run an initial alignment, which I did. I had some initial troubles with MICH_DARK since my first adjustment of the BS was not enough. After figuring that out, I was able to get all the way through. By this time, Louis came back on at around ENGAGE_DRMI_ASC and took over.

One weird thing is that the power would auto-jump to 10W after SRC_ALIGN was being offloaded. I may have clicked the LOWER_POWER guardian when we were stuck at 10W after MICH to see if it would go down to 2W (instead of going to the LASER_PWR guardian, but it doesn't seem to have worked and may have fudged the state ordering). Either way, SRC did actually offload. So after that, I set PWR back to 2W and started locking. This was fully auto.

LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:39 TCS Camilla LVEA YES Looking for optic 15:55
16:02   Camilla LVEA YES Looking for phone 16:06
17:54 TCS Camilla, Sophie CHETAPrepLab y(local) CHETA work 19:26
18:03 VAC Gerardo, Jordan VACPrepLab n Looking for viewports 18:23
20:16 CDS Dave CER YES Looking for channels 20:40
20:39 TCS Camilla, Sophie CHETAPrepLab y(local) CHETA work 22:05
21:36   Richard EX,EY n Looking for phone numbers 22:07
22:08 OMC Keita, Alex LVEA YES OMC measurements 22:18
23:05 TCS Camilla, Sophie LVEA YES Turning on CHETA laser 23:55
23:06 PCAL Tony PCalLab y(local) Setting up PCAL measurement 23:59