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Reports until 11:01, Monday 17 July 2023
H1 PSL
jason.oberling@LIGO.ORG - posted 11:01, Monday 17 July 2023 (71402)
PSL ISS 1st Loop Diffracted Power Adjusted

C. Compton, J. Oberling

With the lockloss I took the opportunity to walk Camilla through adjusting the ISS diffracted power %, as it has been trending a little low since last week's PSL recovery.  We increased the ISS RefSignal from -2.01 V to -2.00 V, which brought the ISS diffracted power % to ~2.5% (it does move around a little).  This change was accepted in the ISS SAFE SDF to prevent a SDF revert from inadvertently reverting the ISS RefSignal (see attached screenshots; it looks like last week's adjustment from -2.02 V to -2.01 V was not captured in SDF).

Images attached to this report
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