Reports until 11:54, Wednesday 03 September 2025
H1 SQZ
camilla.compton@LIGO.ORG - posted 11:54, Wednesday 03 September 2025 (86717)
FC Injection, Shape is Changing day to day...

Sheila and I repeated her 86683 yesterday's FC injections

Interestingly the shape of the injection has changed,  meaning the FC loop shape is changing, see quite time today vs yesterday on FC2_M3 plot. The coupling into DARM is also significantly less today. This isn't;t a surprise as we see the FC causing noise into DARM only intermittently 86608, but we don't know the reason why yet. Sheila checked the FC OLG and it looked fine.

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