Added 100 mL H2O to Xtal chiller. Diode chiller level is OK. Filters appear clean. FAMIS 6536.
model restarts logged for Tue 15/Aug/2017
2017_08_15 10:57 h1nds0
2017_08_15 14:35 h1sysecaty1plc1sdf
2017_08_15 14:35 h1sysecaty1plc2sdf
2017_08_15 14:35 h1sysecaty1plc3sdf
Tuesday maintenance restart of h1nds0 to speed up guardian. Unexpected crash of Beckhoff EY SDF models (caused by h1ecaty1 crash).
model restarts logged for Mon 14/Aug/2017 - Sun 13/Aug/2017 No restarts reported
model restarts logged for Sat 12/Aug/2017
2017_08_12 18:32 h1iopsusauxex
2017_08_12 18:32 h1susauxex
2017_08_12 18:34 h1alsex
2017_08_12 18:34 h1calex
2017_08_12 18:34 h1iopiscex
2017_08_12 18:34 h1iscex
2017_08_12 18:34 h1pemex
2017_08_12 18:36 h1hpietmx
2017_08_12 18:36 h1iopseiex
2017_08_12 18:36 h1isietmx
2017_08_12 18:38 h1iopsusex
2017_08_12 18:38 h1susetmx
2017_08_12 18:38 h1susetmxpi
2017_08_12 18:38 h1sustmsx
Timing system at EX was powered down, requiring all models to be restarted.
model restarts logged for Fri 11/Aug/2017 No restarts reported
Attached are the plot lines for the VPW desiccant cabinets. Nothing out of the ordinary shown.
TITLE: 08/16 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 54Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
Wind: 6mph Gusts, 4mph 5min avg
Primary useism: 0.01 μm/s
Secondary useism: 0.10 μm/s
QUICK SUMMARY:
Smooth transition, running in nominal low noise, and in observation. Lock Clock says we've been running for 16:11 hh:mm. Waiting for gravitational waves!
TITLE: 08/16 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 54Mpc
INCOMING OPERATOR: Mix of LHO Staff coverage for today's DAY shift starting with Jeff K.
SHIFT SUMMARY:
Nice & quiet shift with H1 locked for 16hrs (going on 9.5hrs of Triple C.).
LOG:
Smooth sailing currently with a 5+hrs of Triple C.
TITLE: 08/16 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 54Mpc
OUTGOING OPERATOR: Jeff
CURRENT ENVIRONMENT:
Wind: 8mph Gusts, 6mph 5min avg
Primary useism: 0.01 μm/s
Secondary useism: 0.07 μm/s
Quiet seismically and wind-wise.
QUICK SUMMARY:
H1 locked for over 8hrs at 54Mpc.Went through Check Sheet. Did my OSB walkthrough.
IFO locked and Observing along with LLO and Virgo. There was a moderate EQ (Mag 4.8) in the Mid-Atlantic which registered sharply on the 0.03 - 0.1Hz seismic plot about an hour ago. It did not disturb the IFO. Environmental conditions are good. All is normal at this time.
We have had issues with RxPD clipping at Y-End Pcal since earlier this year. In light of this clipping we switched to using TxPD instead of RxPD since June 19, 2017. This clipping introduced a systematic error in the calibrated data before June 19. The mathematical recipe that describes this systematic error is in LHO alog #34153. The comment on the same alog also contains the correction factor that needs to be applied to account for clipping until Jan 22.
The files below contains the correction factor from Jan 22, 2017 02:19:02 UTC to Jun 19, 2017 17:35:22 UTC.
Correction factor at three calibration line frequencies for all time with 10s interval (the data is obtained from 10s FFT).
${CalSVN}/aligocalibration/trunk/Runs/O2/H1/Results/PCAL/O2_RxPD_TxPD_factor_Jan22_Jun20.txt
Correction factor at three calibration line frequencies for science-quality data with 2 minute running average
${CalSVN}/aligocalibration/trunk/Runs/O2/H1/Results/PCAL/O2_RxPD_TxPD_factor_Jan22_Jun20_scienceintent_2minrunningavg.txt (Data) ${CalSVN}/aligocalibration/trunk/Runs/O2/H1/Results/PCAL/O2_RxPD_TxPD_factor_Jan22_Jun20_scienceintent_2minrunningavg.png (Plot)
The script used to produce these correction factors is here:
${CalSVN}/aligocalibration/trunk/Runs/O2/H1/Scripts/PCAL/TxPDRxPD_factor_Jan22_Jun20_2017.m
Thomas, TJ, Peter King, Aidan (remotely)
The goal of this measurement is to get the end HWS to sample the ETMs while locked on IR at low power (2 Watts) as a reference and then transition to higher power (29 Watts).
Preparation:
- This morning Peter and I went down to the end stations to install the Hartmann plate on EX and double check that EY's plate was still on. Both are currently installed.
- The virtual disk that houses the HWS data frames was full so I ran a script that deletes old data, we are currently at 87% full.
- I automated the misalignment procedure with this script: /ligo/home/thomas.vo/LIGO/AOS/TCS/20170815_ETM_Abs_Meas/Setup_HWS_Ends_Test.py. In order to image just the ETM, we need to input a bias offset to ALS-PZT2 YAW in order to offset the reflection off the ITM, the offsets were determined in aLOG-35979. For the X-ARM, the bias offsets were correct, but for the Y-ARM the offsets would kick the ETMY reflection off the HWS so we decided to do this move by hand however it was difficult to precisely discern how far off the ITM spot was.
We locked both arms in green and took the lock guardian all the way up to DC_Readout, then I manually opened the shutter on the green beams and ran a misalignment script (see below) and started the HWS code. However, the code on ETMX crashed in the middle of the test and didn't throw up any warnings but we were able to get ETMY measurements. The data is in /data/H1/ETMY_HWS/1186800000.
- Start time (@ 2 Watts): 15:35:00 PST
- End time (@ 29 Watts): 15:55:00 PST
- Shuttered: 16:10:00 PST
TITLE: 08/15 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Jeff
SHIFT SUMMARY:
LOG:
Everything looks fine. Noticeable adjustments in weekly diode current. Sudden changes in chiller plots have been discussed with Jeff B and Jason O. He says it could be related to the slight drop in XCHILFLOW. Jeff also said he's seen this before.
All times UTC:
Changes/Issues:
Currently:
To Do:
Following the reboot of h1ecaty1, the three pseudo-front-end models which provide SDF for this machine unexpectedly died. The models run on h1build as user controls (h1build becuase currently the code only runs on Gentoo). These pseudo models use out-of-band DCU numbers, for EY these are 1030, 1031, 1032 for PLC1, PLC2 and PLC3 respectively.
The restart instructions can be found in the wiki page:
https://cdswiki.ligo-wa.caltech.edu/wiki/UpdateChanListBeckhoffSDFSystems
ssh controls@h1build (standard password applies)
starth1sysecaty1plc1epics
starth1sysecaty1plc2epics
starth1sysecaty1plc3epics
RF Heliax cable was pulled from the CER to HAM6 racks. Part of the SQZ installation. A total of 16 runs were pulled:
1. 12 cable runs will go from ISC-C3 rack to SQZ-R1 rack.
2. 4 cables runs will go from ISC-C4 to ISC-R3.
Cables in the CER are not dressed to appropriate cable tray/rack. Cables are laying on the floor and people should use caution when entering the CER. Work will continue next Tuesday.
F. Clara, E. Merilh, M. Pirello, R. McCarthy, S&K
Cold cathode gauge PT-114 tripped today at 18:17 UTC (located at CP1 in LVEA). Restarted at 20:40 UTC.
Contractor removed ice build up and installed insulation on outside nitrogen exhaust pipe at CP2 (corner) and CP8 (EX) this morning. They will finish up at CP1 and CP7 next Tuesday.
The motivation is to prevent ice build up and noise-generating bird pecking.
Both X and Y End Stations had their pre-end-of-O2 calibration measurements today. Full results can be found for: EndX and EndY. The resulting PCal Force Coefficients are:
Currently used O2 force coefficients:
LHOX: none, not used
LHOY: RxPD = 1.0475e-9 N/V
TxPD = 1.5160e-9 N/V
This measurement:
LHOX: RxPD = 1.0473e-9 N/V
TxPD = 1.3164e-9 N/V
LHOY: RxPD = Not calculated due to clipping
TxPD = 1.5202e-9 N/V
Note: The values I list for "This measurement" don't match what is shown in the results found at the links posted above. This is due to the fact that we calculated these numbers by hand since they are corrected for optical efficiency, which we know to be an issue related to the known clipping. We used the optical efficiency that was measured in previous measurements before clipping started.
For LHOY TxPD, this give us 0.28% variation between this measurement and the O2 epics value.
Log sheets for this round of calibrations attached.
