DQ Shifter: Sharan Banagiri
Email: banag002@umn.edu
Fellow(s): Adrian Helmling-Cornell

Link to DQ Shift wiki page: https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20190819

Summary (highlights) of the DQ Shift for an aLog:

• Net duty cycle of 78.4 + 55.9 + 73.6 + 69.3 + 87.3 + 88.1 + 77.5 = 75.8 %
• Mean BNS range ~ 115 Mpc
• Spot positions moved to pre august postition
• Detchar BLRMS monitors have been broken for the first half of the week.
• H1:SUS-ETMX_L2_WIT_L_DQ shows evidence of scattering everyday.
• H1:LSC-POP_A_LF_OUT_DQ and H1:LSC-POP_A_RF45_Q_ERR_DQ are still top channels on hveto
• H1:PEM-EX_ADC_0_19_OUT_DQ (or 18) have been glitchy and are in hveto since after mantainence.
• Violin modes have run up everytime the ifo got locked, this seems stronger than usual and can be seen in the daily spectral ratios plots.
  • https://ldas-jobs.ligo-wa.caltech.edu/~marek.cieslar/DailyDiffs/2019-08-23/DailyDiff_H1_index.html
  • https://ldas-jobs.ligo-wa.caltech.edu/~marek.cieslar/DailyDiffs/2019-08-22/DailyDiff_H1_index.html
• The BP3 SQZ DCP BLRMS (green trace in detchar page) has slowly migrated to lower values over the week.
• There was a large dip in range on Tuesday. Strong lasso correlation with H0:VAC-MX_GV16_II339_AIP_IC_LOGMA

Some Relevent alogs:

• https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=51426
• https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=51479
• Maintainence summary alog - https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=51404
• https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=51419