Reports until 21:39, Thursday 06 June 2024
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 21:39, Thursday 06 June 2024 (78296)
OPS Eve Shift Summary

Jenne, TJ, Sheila, Ibrahim

TITLE: 06/07 Eve Shift: 2300-0800 UTC (1600-0100 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: TJ (in name only)
SHIFT SUMMARY:

IFO is in DOWN and staying that way until tomorrow.

The remainder of the H1 EVE Shift and the entirety of the upcoming OWL Shift have been cancelled due to Locking issues with the new OFI configuration.

We have not been able to lock since yesterday's short 2.5 hr lock, ending at roughly 10:30 UTC.

Comissioners were tirelessly testing out a new OFI spot configuration when my shift started and despite their determination, it does not seem to be in a good spot. Jenne and I confirmed that IFO_OUT suspensions do not saturate during powerup but it seems that they tend to do so (only OM2 and OMC) at LASER_NOISE_SUPPRESSION. Thus, we have elected to revert the changes tomorrow morning. Check out alog 78290 for more information on this comissioning work.

LOG:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

Start Time System Name Location Lazer_Haz Task Time End
21:03 SAF HAZARD LVEA YES LVEA is Laser HAZARD 23:32
21:26 SQZ Terry, Kar Meng Opt Lab Local SHG work 23:56
23:12 CAL Francisco PCal Lab N Measurements 23:31
00:08 PEM Robert LVEA Y Turning off amps and taking pictures 00:25