During the commisoning window this afternoon we got some data for different squeezer configurations.  

Here is a summary of times:

First, a set of data at the current SRCL offset, summarized in the first screenshot, references are saved in /ligo/home/sheila.dwyer/SQZ/SQZ_vs_SRCL/SQZ_vs_SRCL_DARM_FOM.xml. 

• FDS, SRCL offset -290, SQZ phase 143.71 (configuration we have been observing with) ref 0, 31/05/23 20:57 UTC, CLF servo sign +
• No SQZ, SRCL offset -290 21:16 UTC (ref 1)   increased OPO trans to 61uW, changed OPO temp, CLF RF6 ABS went from 0.0493 to 0.0554, 
• FIS 21:25 ref 2 UTC SRCL -290 sqz ang 143.71 (we did check for a better sqz ang, but there wasn't much benefit to changing the angle here) , CLF servo sign +
• FI anti-sqz, 21:44:00 SRCL -290, sqz ang 68, CLF servo sign - 
• mid way sqz angle, 21:52:49 ref 4, SRCL -290 sqz ang 205, clf servo +

Then we tried to repeat a scan of sqz angle and srcl offsets similar to what Vicky and Elenna did here, however the impact wasn't as noticable as in that alog, perhaps because we don't have a lot of anti-sqz right now.  Second attached screenshot shows the summary of this. 

• ref 5 21:52:49 UTC, SRCL -200, sqz angle 143.71 CLF servo +
• ref 6 22:01:39, changed sqz angle to restore high frequency sqz, SRCL -200, sqz ang 113.64, clf servo +
• ref 7 22:09:53 UTC, SRCL -165 sqz ang 83.57 CLF servo +

Then a repeat of the same data set as above but taken at a SRCL offset of -165, as shown in the third attachment. 

• ref 8 22:14:45 UTC, SRCL -165 sqz angle 58.51 CLF servo - (anti-sqz)
• ref 9 22:23:16, SRCL -165 sqz angle 198.84 servo + (mid sqz)
• ref 10 22:28:48 SRCL -165, no sqz