-- KentaroMogushi - 20 Oct 2016

Reproducing DQ shift of LLO though 26th to 29th in Nov in 2015.

Real DQ shift by Carl Blair, Jess Mclver

======================================

Overall summary

  • duty cycle 60 - 70 Mpc and 38.2% for 4 days.
  • glithches higher in 8 -20 Hz band and at 2.4kHz mainly due to strong wind and earthquake
  • EYMY bouce and role mode 13:40 UTC on 27th at 6:36UTC on 28th
  • BBH/BNS mainly newSNR < 8 expect for one new SNR > 8 on 29th

Thursday 26th

summary

Detcher tab

  • No software saturations were found
  • BBH - all newSNR < 8, bigget trigger at ~5:15UTC
  • BNS - all newSNR < 8, bigget trigger at ~1:00UTC

Friday 27th

summary

  • Egiht locks, duty cycle is ~ 10 hours (42%) in total. It started around 68Mpc then slightly dropping down to ~ 65 Mpc untill 9:45UTC at the second lockloss.
  • There are periodicity at ~ 75Hz in strain during the frist lock.
  • The first lock loss at 00:21 due to roll mode damping
  • At 6:02UTC Running A2L script
  • The third lockloss due to the earthquake
  • at 13:40 UTC Lost lock due to ETMY Bounce and roll mode
  • at 14:55UTC Lost lock, reason unknow. At 15:36UTC Running A2L. At ~16:00UTC lockloss due to earthquake and wind. At 17:35UTC Lost lock going to to RF_Locked at cARM 100PM, ALS Y lost lock alog
  • a banch of wind and earthquake made lock difficult, for example, at 2:127UTC The earthquake was magnitude 6.2 in Chile. alog

  • Dampping at 9:00 UTC seen by trigger in BBH, SNR = 47.1 and by trigger in BNS in which SNR = 7.3

Detchter tab

  • BBH - all newSNR < 8
  • BNS - all newSNR < 8

Saturday 28th

summary

Detchter tab

  • No software saturations were found
  • Locklos at 7:30 UTC there is scattering
  • BBH - all newSNR < 8
  • BNS - all newSNR < 8

Sunday 29th

summary

Detchter tab

  • No software saturations were found

  • BBH - one new SNR > 8, rate = 0.002 Hz at ~10:00 UTC *
Topic revision: r7 - 07 Nov 2016, KentaroMogushi
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