TJ, Vicky, Naoki, Sheila

Since the vent we haven't fully checked some of the usual offsets and settings that we might need to adjust, I started with some of them this morning. 

I started with stepping the BS camera pitch offset, which I'd started in 79663 but wasn't able to finish at that time because of a lockloss.  We gained a little more than 1 kW of circulating power in the arms by adjusting the offset from 233 to 230, see first attachment, this has been added and loaded in lscparams.  The improvement on POP A + B may be because of an alignment shift, we are probably clipping on both of those.

Went to no squeezing and ran OMC alingment offset scan: went to no squeezing and copied Jennie's dtt template from 78616.  This scan saturated the OMC pitch actuator, so I reduced the OMC ANG Y amplitude from 3 to 1 and restarted the scan at 15:53:07-16:16:29 UTC.  TJ and I noticed that the strange flashing behavoir of the OMC camera was coming and going while this scan was happening. 

Following up on 79719 I used the template sheila.dwyer/OMC/OMC_fringe_wrapping.xml and reduced the amplitude to 600 as Naoki did to adjust the OFI temperature. We found that the fringe wrapping shelf amplitude was reduced by increasing the temperature, we went up to 37.5C and the amplitude of the shelf dropped by a factor 3 (second screenshot attached).  We didn't go hotter than this because we weren't sure how hot we would want to operate.   This change in OFI temperature doesn't seem to have changed the optical gain, shown in the 3rd attachment.  (template in sheila.dwyer/OMC/OMC_fringe_wrapping_after_OFI_repair.xml, ref 38 25C, ref 39 28.5C, 40 29.5C, ref 41 30.5, ref 42 31.5C, ref 42 31.5C, ref 43 32.5C, ref 45 34.5C, ref 46 35.5C, ref 47 36.5C, ref 48 37.5C. )

Vicky, Naoki and I started some alignment scans for 4 squeezer DOF (ZM5+6 P+Y) with different frequencies (similar to the OMC offsets), at 17:10 UTC- 17:34:20 UTC. (We continued OFI temperature adjustments while this was happening).