Reports until 13:39, Thursday 26 June 2025
H1 ISC (SQZ)
sheila.dwyer@LIGO.ORG - posted 13:39, Thursday 26 June 2025 - last comment - 15:47, Thursday 26 June 2025(85362)
updating SRCL offset

measured NLG with seed of 14.15, had to adjust temperature

Fitting to SRCL detuning guesses for these last two points would suggest we should update our SRCL offset to -382 counts (was previously -455).  We will do this now, as we are about to run a calibration measurement. 

While we were at 0 SRCL offset, Elenna looked at the impact of SRM alignment, she will alog this.  It does seem to have an impact of FIS, which is small compared to the impact of the SRC length offset. 

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elenna.capote@LIGO.ORG - 15:47, Thursday 26 June 2025 (85367)

I wrote a summary of the SRM alignment moves here: 85366