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Reports until 16:52, Friday 12 April 2024
H1 SQZ
eric.oelker@LIGO.ORG - posted 16:52, Friday 12 April 2024 - last comment - 17:25, Friday 12 April 2024(77133)
SQZ Measurements at (7.5, 0.5) PSAMS

Naoki, Camilla, Eric

We've decided to try out our other candidate PSAM values for a few days.  While retuning, we also took some FDS/AS and FIS/AS traces so we can characterize this operating point using Dhruva's interactive_sqz code.

PSAMs at 8.8/-0.7

Measured NLG =  17.07 (following 76542). Adjusted OPO temperature  to 31.475

PSAMs moved to  7.5/0.5,  walked alignment back manually on ZM4/5 using trend from Tuesday, Ran Scan_alignment for FDAS. 

Data:

There was a fair amount of A2L work going on concurrently which may have been altering the technical noise quite a bit across the dataset.  We intended to grab another NoSQZ at the end, but there was lock loss :( 

We are going to leave things at this PSAM setting tonight with H1:SQZ-CLF_REFL_RF6_PHASE_PHASEDEG = 190.  

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naoki.aritomi@LIGO.ORG - 17:25, Friday 12 April 2024 (77144)

In the beginning of next lock, we ran the SCAN_SQZANG and the sqz angle was set at 199. However, the range seems better with 192. So we set the sqz angle at 192.

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