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| 40m Log |
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 Tue Mar 5 06:27:14 2013, yuta, Update, LSC, intra-cavity power dependence on mirror misalignment 
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 Tue Mar 5 23:00:08 2013, yuta, Update, LSC, Yarm and PRC g-factor from misalignment measurement
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Tue Mar 5 23:37:11 2013, yuta, Update, SUS, PRM angular motion spectra
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Wed Mar 6 02:46:20 2013, Manasa, Update, LSC, PRMI locking for g-factor measurement
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Wed Mar 6 09:44:29 2013, Koji, Update, LSC, PRMI locking for g-factor measurement
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Fri Mar 8 21:00:05 2013, Manasa, Update, PSL, PMC fixed
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Message ID: 8263
Entry time: Fri Mar 8 21:00:05 2013
In reply to: 8237
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| Author: |
Manasa |
| Type: |
Update |
| Category: |
PSL |
| Subject: |
PMC fixed |
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| Quote: |
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 Mystery
1. Filter module (FM1) on PRCL and MICH show significant delay while enabling and disabling.
2. I tried to fix PMC alignment (PMC trans was 0.76). I was not able to get PMC trans more than 0.79.
PMC has been this way since yesterday.
3. MICH is still bright when locked (ASDC_OUT reads 0.08 for dark and 2.0 for bright). We suspect it is because of the AS55_I error offset that persists even after running LSCoffsets script.
4. PRMI shows some dither at 3Hz when locked.
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[Koji, Manasa]
PMC is fixed with 0.84 in transmission. It was misaligned in pitch (fixing this increased PMC_trans to 0.822 from 0.773) and Koji also touched the wave plate and polarizer (changed PMC_trans to 0.845). |