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Reports until 12:10, Wednesday 30 November 2016
H1 General
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.

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.

Comments related to this report
edmond.merilh@LIGO.ORG - 15:59, Wednesday 30 November 2016 (32043)

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.

  • issues while damping 2nd order harmonics. Mode 9 filter for ETMY had a 4.753K filter turned on while trying to damp an identified lower frequency mode cause a confusing EY saturation before Jenne realized that a very high frequency had grown in amplitude.

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

edmond.merilh@LIGO.ORG - 16:01, Wednesday 30 November 2016 (32044)

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.

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