Shifter Terry McRae

LHO fellow Matthew Ball

For complete results see https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20190826

• Net duty cycle of 100 + 60 +84 + 61 + 89 + 93 + 64 = 79%
• Mean BNS range ~ 115 Mpc slight increase toward the end of the week.
• Glitches at 48Hz on Monday coincident with small BNS range drop.
• PRCL (power recycling cavity length) feed forward implemented alog 51581 gain about 2 Mpc in range.
• Replace HEPI pump at UTC 15:00 alog 51584
• Unknown lockloss Wednesday 28, 20:00 to ~23:45 alog 51586
• 6.4 mag eq 276km WNW of Bandon, Oregon alog 51601
• H1:LSC-POP_A_LF_OUT_DQ always one of the top two channels on Hveto
• The PEM channels (PEM_EX_ASC_17,18,19) whose significance was reduced by the round 1 winner were the same as the ones mentioned from the previous shift.
• Satruday strange relationship between tidal and PSL temperature alog 51648
• Sunday 3 locklosses: unknown alog 51664; earthquake alog 51666 and a wind gust alog 51667
• Around Thursday Hveto seemed to "transition" from bringing down the significance of several ASC_X/Y_TR channels to bringing down the significance of several LSC channels.
• Hveto page not loading for Sunday 1 September.