Reports until 21:56, Friday 03 October 2014
H1 SEI
fabrice.matichard@LIGO.ORG - posted 21:56, Friday 03 October 2014 (14298)
Optical levers motion with new blend configuration

The document attached shows the Yaw motion (first page, left) and Pitch motion (second page, left), Friday morning at 1 am PT, for all test masses.

All units were controlled with the blend configuration imported from LLO. The sensor correction was OFF.

Compared to the previous nights measurements, ITMY optical lever has been re-centered. Values look reasobable now. Also the combs in ETMY are gone.

ITMX does look higher than the others, as seen during the previous days by the commissioners in the time series, but it might be due to calibration error (see Jeff's alog).

In general:

- the Yaw rms values seem dominated by micro-seism (or sub-microseism for ETMY)

- the Pitch rms values seem dominated by the 0.5 Hz suspension resonances

Non-image files attached to this report