Reports until 06:55, Monday 01 July 2024
sukanta.bose@LIGO.ORG -
posted 06:55, Monday 01 July 2024 (78771)
Data Quality Shift Report 2024-06-10 to 2024-06-16
- The duty factor for the week was 72.15%. This is much better than the performance in the previous week, which was beset by locking problems.
- The average BNS range was around 150 Mpc. The week started with a range of 130 Mpc in the first observation stretch but subsequently climbed to 150 Mpc later that day -- after a commissioning break (alog 78340). It remained around 150 Mpc for the rest of the week but touched 160 Mpc on the last day (Sunday), following a SQZ returning (alog 78467).
- A couple of the lock-losses, on Wednesday and Thursday, appeared to be due to signals in ETMX (alog 78417, alog 78392).
- Some sources of BNS range drops appear to be (a) nonlinear noise, especially, at low frequencies (< 15 Hz); (b) noise in SUS MC2 ( less than ~0.1 Hz); (c) noise due to acoustic coupling in HAM6 (~40 Hz); (d) elevated wind speeds.
- Hveto: 28 channels appeared in Hveto this week of which 14 were not seen in the previous week.
- FScan: Plots were present for all days. The line counts are 729, 879, 1027, 977, 828, 699, and 814, respectively, somewhat on the high side on Wednesday.