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Reports until 03:55, Monday 17 June 2024
H1 DetChar (DetChar)
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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
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