Virgo Logbook

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Detector Operation (Operations Report)

menzione - 23:03 Wednesday 07 January 2026 (68448)

Operator Report - Afternoon shift

ITF found in relocking up to CARM_NULL_1F, in UPGRADING mode.

After several attempts ITF acheived LN3. COMMISSIONING mode set.
After the unlock occurred at 18:28 UTC (from LN3) the SBE_EIB loop started to ring, so the ISYS system got stuck. I contacted the OnCall who tried to fix it. Recovery attempt up to 22:00 UTC. Not concluded. Activity planned for tomorrow morning.
TROUBLESHOOTING mode set.

DAQ
TelescreenLeft, TelescreenRight VPM processes restarted twice.

Images attached to this report

68448_1767823264_Screenshot 2026-01-07 at 23-00-23 DMS Event Monitor.png

68448_1767823264_Screenshot from 2026-01-07 22-59-50.png

Comments to this report:

melo, spinicelli - 23:58 Wednesday 07 January 2026 (68450)

At 23:40 LT the Injection system was recovered after manually restoring the position of the MC, IB and BPC (also lowering the corrections of the BPC). It seems that the issue started after an oscillation of the EIB control loops.