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MIF (General)
takafumi.ushiba - 16:32 Thursday 12 June 2025 (34174) Print this report
GRY locked with TEM10 during lock acquisition

I found that GRY was locked with TEM10 during the lock acquisition today, which should be avoided to keep the good alignment of SR3.
I investigated the reason and found that the threshould for GRY lock was temporary reduced during the IFO recovery after the earthquake (klog30140) but not reverted after the IFO recovery.
To avoid TEM10 lock, it should be reverted soon.

Comments to this report:
takafumi.ushiba - 10:17 Friday 13 June 2025 (34182) Print this report

I reverted the GRY lock threshold from 0.4 to 0.65 as shown in fig1.
Since the GRY TEM10 transmission is about 0.5 after SR3 ADS was engaged, this threshold can avoid to lock GRY with TEM10.

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