Complete results from this DQ shift may be found at here.
Not sure of the cause yet.
Attached are 7 day pitch, yaw, and SUM trends for all active H1 optical levers.
Centering: All oplevs within acceptable operating range, no re-centering required.
Glitching: No change from last week.
I reset the PSL 35W FE watchdog at 17:13 UTC (9:13 PST).
I also noticed the diode chiller was indicating a low water level warning, so I added 300 mL of water; this cleared the low level warning. Crystal chiller is fine.
Photograph of the LHO Control Room at 8:00AM PST, Tuesday 2016 January 12.
Title: 1/12 Owl Shift 8:00-16:00 UTC (0:00-8:00 PST). All times in UTC.
State of H1: Observing
Shift Summary: Concurrent LHO/LLO locks for the past 19 hours. Not a bad way to wrap up O1!
Incoming operator: TJ
Activity log:
15:06 Ken driving his truck around to OSB mechanical building
ITLE: 01/12 Day Shift: 16:00-00:00UTC (08:00-16:00 PDT), all times posted in UTC"
STATE Of H1: Observing at 78Mpc for 19hours
OUTGOING OPERATOR:Travis
QUICK SUMMARY: End of O1! Let maintenance and calibration begin.
Summary: We scheduled 10 coherent CBC waveforms to be injected into H1 and L1 during observation mode (alog 24867). All 10 coherent waveforms were successfully performed once. Waveforms: The waveforms were generated by Salvo and John V. The tagged version of the waveform generation tools was not used. The reason for not using the tagged version is that we wanted to inject precessing waveforms but we do not have a time-domain precessing approximant. Therefore Salvo, John had to make some edits to the waveform generation tools to use a frequency-domain approximant. The waveforms were committed to the SVN. The parameters files are in: https://daqsvn.ligo-la.caltech.edu/svn/injection/hwinj/Details/Inspiral/ The names of the parameter files are: coherentbbh20_1135136337.xml coherentbbh21_1135136336.xml coherentbbh22_1135136336.xml coherentbbh23_1135136337.xml coherentbbh24_1135136337.xml coherentbbh25_1135136337.xml coherentbbh26_1135136336.xml coherentbbh27_1135136336.xml coherentbbh28_1135136335.xml coherentbbh29_1135136336.xml The waveform files are in: https://daqsvn.ligo-la.caltech.edu/svn/injection/hwinj/Details/Inspiral/H1/ and https://daqsvn.ligo-la.caltech.edu/svn/injection/hwinj/Details/Inspiral/L1/ The waveform file names are: coherentbbh20_1135136337_H1.out coherentbbh21_1135136336_H1.out coherentbbh22_1135136336_H1.out coherentbbh23_1135136337_H1.out coherentbbh24_1135136337_H1.out coherentbbh25_1135136337_H1.out coherentbbh26_1135136336_H1.out coherentbbh27_1135136336_H1.out coherentbbh28_1135136335_H1.out coherentbbh29_1135136336_H1.out coherentbbh20_1135136337_L1.out coherentbbh21_1135136336_L1.out coherentbbh22_1135136336_L1.out coherentbbh23_1135136337_L1.out coherentbbh24_1135136337_L1.out coherentbbh25_1135136337_L1.out coherentbbh26_1135136336_L1.out coherentbbh27_1135136336_L1.out coherentbbh28_1135136335_L1.out coherentbbh29_1135136336_L1.out I'll request that Salvo, John include anything they used to generate the waveforms such that their waveforms are reproducible. Schedule: All ten injections were scheduled and successfully injected. The following was added to the schedule file: 1136584223 1 1.0 coherentbbh20_1135136337_ This injection was successful. After this injection completed, we left observation mode briefly so that Jeff could turn off the PUM and UIM PCAL lines (alog 24872). We then returned to observation mode and the following was added to the schedule: 1136586132 1 1.0 coherentbbh21_1135136336_ 1136587232 1 1.0 coherentbbh22_1135136336_ 1136588332 1 1.0 coherentbbh23_1135136337_ 1136589432 1 1.0 coherentbbh24_1135136337_ 1136590532 1 1.0 coherentbbh25_1135136337_ 1136591632 1 1.0 coherentbbh26_1135136336_ 1136592732 1 1.0 coherentbbh27_1135136336_ 1136593832 1 1.0 coherentbbh28_1135136335_ 1136594932 1 1.0 coherentbbh29_1135136336_ These injections were all successful. GraceDB entries: Therefore the following graceid, and end times of the injections is: H215896 1136594946.67 H215895 1136593847.67 H215894 1136592746.63 H215893 1136591646.63 H215892 1136590545.64 H215891 1136589445.66 H215890 1136588345.67 H215889 1136587246.63 H215888 1136586146.67 H215880 1136584236.63 There were three erroenous gracedb entries, please ignore these: H215887 3313.668306 H215886 2214.632416 H215885 1114.669055
Locked in Observing for 15 hours now. Nothing of note to report.
Activity Log: All Times in UTC (PT) 00:00 (16:00) Take over from Ed 00:26 (16:26) John – Back from Mid-Y 00:28 (16:28) Bubba – Back from Mid-Y 00:31 (16:31) Kyle – Back from Mid-Y 01:10 (17:10) Set intent bit to Commissioning to dress up recycling power 01:21 (17:21) Completed alignment tweak on TMS-Y and Back into Observing 08:00 (00:00) Turn over to Travis End of Shift Summary: Title: 01/11/2015, Evening Shift 00:00 – 08:00 (16:00 – 00:00) All times in UTC (PT) Support: Jeff K., Vinny Incoming Operator: Travis Shift Detail Summary: Took IFO to Commissioning to adjust recycling power. Moved TMS-Y pitch from 138.4 to 136.2 and yaw from 21.4 to 21.3. POP_A_LF_OUT is now between 16160 and 16200 counts. Will monitor for continued drift and adjust as necessary. The IFO has been in Observing mode for the entire Evening shift, (minus the 10 minutes, the IFO was in Commissioning mode noted in previous aLOG). Environmental conditions remain good, with wind holding at a light breeze or less (< 7 mph), seismic flat, and microseism improving to 0.4um/s. Range and power remained constant during the shift. The recycling power continues above 16k counts; it has not declined during the shift.
With the exception of dropping into commissioning mode for about 10 minutes the IFO has been in Observing mode for the past 6 hours. The range has been high 70s to low 80s Mpc, power is 21.4W. The wind is calm to light air (0-3mph). Seismic has been on a downward trend for the past 4 hours and is now centered around 0.07um/s. Microseism is also trending downward and centered at 0.5um/s, with occasional CS spikes to just over 1.0um/s. The recycling power is holding above 16k counts.
01:10 (17:10) Out of Observing 01:21 (17:21) Back into Observing Took IFO to Commissioning to adjust recycling power. Moved TMS-Y pitch from 138.4 to 136.2 and yaw from 21.4 to 21.3. POP_A_LF_OUT is now between 16160 and 16200 counts. Will monitor for continued drift and adjust as necessary.
FRS 4177, Bugzilla 960 The wmctrl package has been installed on most Ubuntu control room workstations. The workstations that have NOT had wmctrl installed are opsws6, opsws9, and operator0.
operator0 now has wmctrl installed.
opsws6 now has wmctrl installed.
Kyle, John After first decoupling the 3/8" tubing at the top of the CP3 vacuum vessel, we fed SS wire into the obstructed 1/4" level sensing tube. We were able to feed enough wire as to think that we were within 1 foot of where the tube connects with the inner LN2 reservoir -> We then remove the wire and coupled the 3/8" line For tonight, we are leaving the two sensing lines combined at the 3-valve valve body via opening the valve which normally isolates the two.
Transition Summary:
Title: 01/11/2016, Evening Shift 00:00 – 08:00 (16:00 – 00:00) All times in UTC (PT)
State of H1: IFO locked and in Observing. Calibration work continues. The POP_A_LF signal is still drifting lower. The plan is to tweak TMS alignment as soon as current hardware injections are complete.
Outgoing Operator: Ed
TITLE: Jan 11 DAY (half) Shift 20:00-00:00UTC (12:00-16:00 PDT), all times posted in UTC
STATE Of H1: Observing
INCOMING OPERATOR: Jeff B
QUICK SUMMARY:
Ground motion is high but not too high from preventing stable locking
IFO locked in the 78Mpc range for past 3 hrs
Downward trend in recycle power will need to be addressed at the end of calibration testing at LLO
Shipment of Transformers arrived. Truck diverted to LSB where Bubba met for the offload
ACTIVITY LOG:
11:20 IFO re-locked at NLN
11:21 Intent Bit set to Observing
22:02 Truck Loaded with transformers for Bubba
22:03 Intention Bit momentarily toggled for changing of ETMY calibration lines
22:46 Kyle and John out to MY to do daily CP3 overfill
23:21 Watching recycle power decay. LLO is running calibrations. We have ≈1.5 hours until we need to re-align TMS to correct in order to save lock. This is about the same amount of time that Chris Biwer will need to complete his work at LLO
I will be conducting some hardware injection tests at H1 and L1. This aLog will be updated as hardware injections are scheduled.
I am adding the following to the schedule file: 1136584223 1 1.0 coherentbbh20_1135136337_
We will leave observation mode briefly and Jeff will turn off two PCAL lines that were on from the PCAL tests. Hardware injections will resume afterwards.
We are back in observation mode, the PCAL lines are off and I've added the following lines to the schedule: 1136586132 1 1.0 coherentbbh21_1135136336_ 1136587232 1 1.0 coherentbbh22_1135136336_ 1136588332 1 1.0 coherentbbh23_1135136337_ 1136589432 1 1.0 coherentbbh24_1135136337_ 1136590532 1 1.0 coherentbbh25_1135136337_ 1136591632 1 1.0 coherentbbh26_1135136336_ 1136592732 1 1.0 coherentbbh27_1135136336_ 1136593832 1 1.0 coherentbbh28_1135136335_ 1136594932 1 1.0 coherentbbh29_1135136336_
These injections are now complete.
During the last lock segment, we had the Tidal Error messages (X& Y COMM CTRL within 10% of limit). Additionally, noticed on the Striptool on nuc1 that IMC-F_OUT16 was diverging & drifting off-screen (see attached). Ultimately there was a lockloss (could it be related?).
Talked to Hugh while we were locked, and he pointed me to the End Station HEPIs & also to the ISC signals they get. He mentioned they have a limit of 700,000counts. ETMy was moving below -36,000 (this was OK). EX was flatlined at 14,660 (this was ODD). But since both of these were well away from 700,000, we ruled out this being a tidal issue and figured it was something upstream (ISC? PSL?). We'll see how the next lock looks.
The attachment shows how the integrated ALS offsets remain as error point offsets for the IMC-F → UIM offloading.
We should bleed these ALS offsets away once we have transitioned off ALS, and preferrably before increasing the laser power (as this will load CARM by a few microns).
I thought that with EX tidal flatlined, the IMC frequency changes to try and keep H1 locked, but then runs out of range causing lock loss?
Wouldn't that mean the EX flatlined is the issue, IMC_F is just responding?
It seems that during this lock acquisition, there were large offsets remaining on the ALS → UIM offloading filter modules, and correspondingly large offsets on the IMC-F → UIM offloading filter modules (which are used during full lock).
The IMC-F → UIM offloading hit the limit around 15:50:00 Z, causing the tidal offloading to halt. As Cheryl said, this means IMC-F starts accumulating a dc offset to keep the laser on resonance.