This morning the BS, PR, and DIFFp TX and TY setpoints were tuned for minimum power on B1p and maximum power on B4 sidebands. At the time of this log entry, the ITF_LOCK.ini file has been updated to the following values:

• ASC.DIFFp_TX_SET = 0.015
• ASC.DIFFp_TY_SET = 0.008
• ASC.BS_TX_SET = -0.002
• ASC.BS_TY_SET = 0.004
• ASC.PR_TX_SET = 0.014
• ASC.PR_TY_SET = 0.000

Attached are two plots to show the improvement of the new set point. 190724_hrec.gif shows the improved sensitivity around 300-450 Hz (detection bench structure) The three plots in 190724_trend.gif show the power on B1p, the sidebands power on B4 and the contrast defect (ratio of B1p to B4 112MHz) respectively from top to bottom. The setpoint was changed around 07h20. There is a noticable decrease on B1p and increase on sidebands power and the decrease of contrast defect.