Reports until 17:09, Tuesday 24 June 2025
H1 ISC
anthony.sanchez@LIGO.ORG - posted 17:09, Tuesday 24 June 2025 - last comment - 17:25, Tuesday 24 June 2025(85307)
Range Comparison: April 2024 vs Today.

Range comparison plot:
Command Ran:  python3 range_compare.py 1396833438 1434842418 --span 1800
time 1 is April 11th 2024
time 2 is today at 23:20 UTC June 24th 2025
 

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Comments related to this report
elenna.capote@LIGO.ORG - 17:25, Tuesday 24 June 2025 (85308)

I ran two brucos, one on NOLINES and one on CLEAN.

bruco NOLINES

bruco CLEAN

Overall, the message of Tony's alog is that, relative to our best range, we have lost 10 Mpc by the time we reach 100 Hz, and an additional 5 Mpc by the time we reach 1 kHz. The brucos above show a lot of low level coherence with: MICH, SRCL, PRCL, REFL RIN. There is a chance that making additional improvements to the feedforward can help. Right now it's hard to tell how many Mpc that gets us back, but it's where we should start.