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Reports until 16:56, Wednesday 29 April 2026
H1 AOS
betsy.weaver@LIGO.ORG - posted 16:56, Wednesday 29 April 2026 - last comment - 09:47, Thursday 30 April 2026(90063)
BS on Test Stand - Top Stage is damping again
I connected the temp cables which Fil routed for us to the BS Satellite Boxes in the rack in the biergarten.  I disconnected the "to chamber" cables on the Sat amps and connected our temps to those.  After some resorting of the BS Top Stage BOSEM cabling at the ISI, I was able to get the appropriate signals from the appropriate 6 BOSEMs on the medm.  
I am not sure that we will reuse these cables but for the record (since I couldn't find an old BS alog with this info), the Cable Bracket on the ISI is stuffed with these D1000225 cables:

S1106798 Against ISI (Top floor) - BS F1, F2, F3, LF
S1106797 Middle floor - RT, SD
S1104787 Lowest floor - M2 - medm no longer connected tho, says Oli - not plugged in right now anyways

We have more trending to do tomorrow but the F1, 2, 3 Face BOSEMs seem to be "in deeper" while the LF, RT, SD DOFs all show about nominal OSEM position from when it was in the chamber a few days ago.  Chewing on what this means wrt the structure position and ISI/Test Stand level, etc.
Comments related to this report
oli.patane@LIGO.ORG - 08:48, Thursday 30 April 2026 (90068)

M2 cable is unplugged, but if plugged in, we would see the readbacks for that stage on the BBSS M2 stage. So still would be possible to get some info 

betsy.weaver@LIGO.ORG - 09:47, Thursday 30 April 2026 (90070)
Note, I also had to partially uncover the front of the ISI to get the cables out and pinned in such a way to connect to the mock feedthru and then dirty cables.
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