Reports until 14:39, Monday 08 July 2019
H1 DetChar
dripta.bhattacharjee@LIGO.ORG - posted 14:39, Monday 08 July 2019 (50442)
DQ Shift: 1st July - 7th July, 2019
Summary (highlights) of the DQ Shift for an aLog:

-IFO observed at about 115Mpc with average of 70.02% duty cycle.(91.1+46.6+62.1+63.9+80.2+60+86.3)/7
-Hveto round 1 winner is H1:LSC-POP_A_LF_OUT_DQ for all days through out the week.
-Anthropogenic band ground motion increases after 10hrs UTC
-Lost lock due to earthquakes and/or wind
-90Hz bump on Wednesday
-On Friday and Saturday, the normalised spectrogram showed a red line at 1.5KHz,  the higher harmonics of the violin mode
-Highest peak of PCAL X seemed to be moving from 3KHz to 1.5KHz from Monday to Friday. PCAL Y seemed the same throughout the week, few combs at higher frequency.
-A few GRB alerts throughout the week, and a couple of BBH candidate.

Interesting alogs of the week:

-New v3 baluns installed in CER to replace the leaky ones. alog 48165
-End station electrostatic drivers modified. alog 50348
-SR3 heater calibration issue, power monitor channel is not reporting anything like the power as the requested power. alog 50355
-Bump at 90Hz is non-stationary, periodicity of 3mHz. alog 50371
-Measure the Q of the 10.43KHz of the PI mode that was identified earlier as being on ETMY alog 50374
-Studying the effect of moving the beam spot position on the the measured sensing function. alog 50380

Link to DQShift page: https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20190701