karmeng.kwan@LIGO.ORG - posted 16:29, Monday 03 June 2024 - last comment - 10:55, Tuesday 04 June 2024(78222)
DARM spectra for different range and aligment
Captured spectra for ranges at 140Mpc to 155Mpc, as well as the spectra after SR3 aligment changed to 83 from 438.
Reference point are labeled. The file is saved at /ligo/home/karmeng.kwan/DARM_trace.xml
DARM spectra was captured from H1:CAL-DELTAL_EXTERNAL_DQ
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No clear differences seen between the spectra before and after the SR3 alignment change.
The comparison of the spectra shows the excess noise at 20-25Hz regime contributes to range drop, for both the original alignment and after SR3 alignment change.
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