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IOO (OMC)
kenta.tanaka - 4:02 Sunday 01 June 2025 (33990) Print this report
OMC ASC implementation: Day3

I modified OMC_ASC guardian to engage current OMC beacon ASC with offset to keep the alignment on engaging ASC. And also I modified LSC_LOCK guardian to engage OMC ASC automatically in the LOCKING_OMC_FOR_PRFPMI state.

I wanna check the stabillity of ASC in the long term (more than 1 hour). So I left IFO with OMCASC. Please don't touch it untill 5:00 UTC.

Comments to this report:
takafumi.ushiba - 14:03 Sunday 01 June 2025 (33999) Print this report

I checked the OMC ASC stability but its stability seems to change in each lock.
Figure 1 shows the time-series data when lock duration was long.
Figure 2 and 3 show the time-series data when lock duration was short.
In the case of fig2 and fig3, OMMT2 and OSTM pitch started to drift soon after OMC ASC was engaged.
So, OMC ASC doesn't seem to stable enough to use it during OBSERVATION at this moment.

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