The interferometer remained locked throughout the day, thanks to stable environmental conditions.

At around11:49 UTC, high wind activity was recorded, triggering yellow flags in the IP column of the main towers, as the loop on the beam axis was not functioning properly.

At 20:35:07 UTC, sea activity exceeded the 75th percentile, but no significant issues were observed in the suspension system.

Some flags remained yellow throughout the day. Details are below.
Low optical level power for:

• PSD (F, I, T) of the SIB1_BENCH
• PSD (F, I) of the BS_PAY
• PSD (F, I) of the NI_PAY
• PSD (F) of the NE_PAY
• PSD (F) of the WE_PAY

Vertical LVDT out of range for:

• NE_Vert
• PR_Vert

Temperature too high for the DPSs for:

• NE_Electr
• SIB1_Electr
• MC _Electr