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Reports until 11:50, Tuesday 14 November 2023
H1 SEI
oli.patane@LIGO.ORG - posted 11:50, Tuesday 14 November 2023 (74193)
ISI CPS Noise Spectra Check - Weekly FAMIIS

Closes FAMIS#25965, last checked 74134

BSC High Frequency noise is elevated for these sensors!!!
ITMX_ST2_CPSINF_H3
ITMX_ST2_CPSINF_V1
ITMX_ST2_CPSINF_V3

The elevated high frequency noise in ITMX_ST2_CPSINF H3 and V1 has been a thing for the past several weeks (73847), and ITMX_ST2_CPSINF_V3 is popping back up as elevated after a month.

Here is just the ITMX ST2 plot. There are peaks around 12.5Hz for H1, H2, V1, V2, and V3 that don't seem to typically be there (last time the ITMX ST2 spectra looked similar was 08/25/23 - 72434).
All other spectra look okay.

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