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Virgo Runs (O4b)
menzione - 22:53 Friday 29 November 2024 (65662) Print this report
Operator Report - Afternoon shift

ITF found in SCAN_ARMS_ALS and in TROUBLESHOOTING mode. 

Upon fixed the problem on ALS, I exit from TROUBLESHOOTING and restarted the lock acquisition, performed the usual cross-alignment in ACQUIRE_DRMI (3 urad Ty- for SR, 1.3 urad Tx- and 0.5 yrad Ty+ for PR).
Unfortunately the issue on ALS was not completely solved. TROUBLESHOOTING set again for few minutes.

At 17:24 UTC ITF reached LN3_SQZ but with a very low BNS Range. SCIENCE_MODE set.

From 18:11 to 18:23 I set in ADJUSTING_MODE to allow Bersanetti to "disabled SRCL2DARM".

Guard tour (UTC):
18:39 - 19:12
20:18 - 20:48

Sub-system reports

Electricity
WE UPS1 and 2 failure: Both UPS' at WE went in failure at 15:14 UTC. Experts contacted the external company to repair them. Activity planned for Tuesday morning. We are under ENEL without safety.

Oncall events

DET
(29-11-2024 16:30 - 29-11-2024 17:15) From remote
Status: Ended
Description: After several OMC unlocks I contacted DET Expert who checked the status of the system.

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