Reports until 03:55, Monday 17 June 2024
young-min.kim@LIGO.ORG -
posted 03:55, Monday 17 June 2024 (78483)
DQ Shift Report on 2024 May 20 to 2024 May 26
- Link to the report : DQShiftLHO20240520
- Duty cycle : avg. 63.33% ( == 57.27%, 39.90%, 66.20%, 73.65%, 50.65 %, 86.05 %, 69.58% )
- PR2 beam spot re-adjustment, back to its old alignment : improved noises < 20Hz , alog 78012, alog 78033
- SQZ issues
- alignment, optimization during the maintenance
- 10-60Hz excess noises improved after ZM4 move with ASC - alog 78033
- related to the range-drops : alog 77980 on May 22 , May 24 as well. (alog 78033)
- 4000Hz glitches, correlated to the deviation of SQZ, FC ASC channels - Airene's investigation (alog 78032)
- range drop by the morning traffic on May 21
- Hveto : some glitches ( snr: ~8-61, 22~62 Hz) vetoed by SQZ channels on May 21, 22, 24, 25, 26
- FScan: on May 23,25, the number of lines > 1std, but under Alert threhold