corey.gray@LIGO.ORG - posted 12:10, Wednesday 30 November 2016 - last comment - 16:01, Wednesday 30 November 2016(32015)
Lock#1 of O2 (Mid-Shift Status)
Day Shift: 16:00-00:00 UTC (08:00-16:00 PST)
With pomp & circumstance, O2 started with H1 down (& quickly on its way up) & a livestream of the start O2 going on in the Control Room. Cheryl took H1 to NLN & after a bit of shuffling, we are now in OBSERVING.
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16:20 H1 at NOMINAL LOW NOISE
- Completed LVEA Sweep, Turned off lights at EX
- Ran 1st A2L
- Initial restart of HWS computer
- Usual tweaks of PI MODE28 & 27
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16:43 UNDISTURBED
- 1647 Knocked out due SDF Diffs related to HWS camera tweaks
- Have removed these channels from being monitored
- Ran a 2nd A2L since we had been at NLN for 23min
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17:02 UNDISTURBED
- 17:16 Dropped out intentionally to check if high freq Calib line caused glitching (Kissel)
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17:27 UNDISTURBED
- 17:28 Tested INJ_TRANS Guardian Node's INJECT_KILL state by going to it, and it DID NOT drop us from Observing. Went back to INJECT_SUCCESS.
- 18:50 Wifi Routers at EX & EY apparently are still ON. They are going to be remotely powered down (Carlos), but next chance we have to go out and pull their power, we'll repower them ON & then have someone go out and unplug their cables.
- 19:36:01 Dropped out intentionally for high freq Calib Line (kissel)
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19:36:34 UNDISTURBED
- 20:02 Handing off to Ed for the rest of the shift
Activities For NEXT LockLoss:
1) Hit LOAD on IMC_LOCK
2) Notify Carlos, so he can run to EX & EY to turn OFF the wifi routers.
20:25 Re-booted Video 1 FOM
20:30 Yellow PSL Dust Alarm
20:34 Dave B informed me that "Elli's" digital camera went down approx 9:30. It doesn't sem to be missed at the moment and I'm not sure what it as for.
20:42 Red PSL dust alarm
21:01 Intent bit set to Commissionig accidentally bye Sheila but left that way on order to do some vioin mode damping. 2nd order harmonics were showing prominent noise in DMT Omega glitch plot.
22:00 Richard M asked us to go hands off fo a few minutes while power to the facility was being switched between sub-stations.
22:55 Lockloss - probably due to trying to get the 4735Hz mode damped
23:15 re-locking - re-aligned X/Y ALS. Fiber Polarization 17% wrong on Y. Going to correct.
23:25 It seemed that simply turning the unit on to adjust the fiber polarization cause the Y channel to jump to 27%. None of the fibers were disturbed opening the door or activating the switch. Y is curently at 0% and X is at 4%.
23:29 reset ALS Y VCO
23:53 Nominal Low Noise - Jeff continuing to chase HF violin mode (4.735KHz)
23:59 Handing off to Jim
I did reload IMC Guradian Node and I called Carlos about the WiFis at the End Stations. These both happened as the Weekly meeting was starting. I don't know if he got to address thiese. I didn't hear from him.