MODE 26 has been fixed: it has been raised due to an incorrect high pass placement implemented 2/10 when we were setting up new filters. I've fixed this and it should go back to normal amplitudes and damping gain needs. Thanks operators for alerting medealing with this.
(TRY QPD INP FILT #1 had accidentally been switched from a 14.8-15.8 kHz BP filter to a 32kHz high pass. I've reverted this. OMC DCPD INP FILT #3 still has its correct 31kHz high pass.)
And now three cold cathode gauges turned off at EX: PT523, PT524, PT510. I enabled the pirani interlocks and two came back instantly. Dave B. is going out to investigate. Robert is working at EX.
Pirani pressure plots attached.
Fire dept was out there too testing fire alarms. Should not affect vacuum rack but maybe a build up of static electricity??
The primary and redundant pipelines were restarted at GPS second 1171131438. This restart picked up the new package gstlal-calibration-1.1.4-2. See https://bugs.ligo.org/redmine/issues/5115 for details on the associated changes. The CPU usage has is reduced from ~80% to ~ 55%. The latency is unchanged, as expected, and the output looks normal. The filters have not changed. For information on the filters currently in use, see https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=33021
J. Kissel, T. Shaffer, D. Barker WP #6484 FRS #4231 TJ and I have re-written the problematic PERL script, /opt/rtcds/userapps/release/sus/common/scripts/wdreset_all.pl in python, and saved it to the same location, just with a .py extension, /opt/rtcds/userapps/release/sus/common/scripts/wdreset_all.py In order to test the new script, we've also modified the QUAD's watchdog screen, /opt/rtcds/userapps/release/sus/common/medm/quad/SUS_CUST_QUAD_WD.adl and confirmed that the script works - on Debian *and* Ubuntu machines - for several different optics (we used ETMX and ETMY). Both of the above new script and screen modification have been committed to the userapps repo. We will write an ECR to change this permanently for all SUS.
I attach the new version of the python code. This replaces the perl code (quoted below, because not even the aLOG supports uploading .pl files!): #!/usr/bin/perl -I /ligo/cdscfg use strict; use warnings; use stdenv; INIT_ENV($ENV{IFO}); use lib $ENV{USERAPPS_DIR} . '/guardian'; use CaTools; # This script attempts to reset the watchdog, then the DACKILL. # If successful, returns with 0 status. # If fails, tries to print a reason, exits with status 1. # Accepts 1 argument: the subsystem name # Usage: ./wdreset_all H1:SUS-ETMX my $SubSys = uc(shift); caPut("${SubSys}_WD_RESET", 1); sleep(1); caPut("${SubSys}_DACKILL_RESET", 1); Also, ECR has been filed: E1700056
I reset both PSL power watchdogs at 17:58 UTC (9:58 PST). This completes FAMIS task 3637.
CP4 Dewar is being filled today so I lowered LLCV to 34% open (from 44%).
Turn over to Cheryl Activity Log: Time - UTC (PT) 16:00 (08:00) Take over from Ed 16:06 (08:06) Dick – Going into CER 16:07 (08:07) Set Intention Bit to Commissioning/Preventative Maintenance 16:11 (08:11) Joe – Going to both Ends and Mids for fire bottle regular checks 16:15 (08:15) Richard – Transition LVEA to Laser Hazard 16:28 (08:28) Cintas on site to service mats 16:30 (08:30) Filiberto – Going into LVEA to help Richard with TCS Table work (WP #6476) 16:39 (08:39) Chris – Escorting HFD 16:40 (08:40) Carlos – HFS camera work (WP #6483) 16:42 (08:42) Lockloss – Maintenance activities 16:45 (08:45) Chris – Escorting HFD down X-Arm 16:50 (08:50) Robert – Going into the LVEA for PEM work 16:51 (08:51) Bubba & Apollo – Going to End-Y for HV/AC work 16:52 (08:52) Jason – Going into the LVEA for OpLev & TCS work 16:56 (08:56) Roofer on site – Bubba will escort 17:19 (09:19) Kyle – Going into the LVEA to look for drawings 17:20 (09:20) Joe – Back from fire bottle checks 17:22 (09:22) Alarm on PT310 (Mid-X Cold Cathode gauge) – Notified Chandra/Kyle 17:30 (09:30) Kyle – Out of the LVEA 17:36 (09:36) Jeff K – Testing Debian8 WD reset problem 17:38 (09:38) Norco on site to deliver N2 to CP4 17:40 (09:40) Karen – Cleaning at End-Y 17:40 (09:40) Christina – Cleaning at End-X 17:45 (09:45) Norco on site to deliver N2 to CP6 17:49 (09:49) Jason – Out of LVEA 18:00 (10:00) Turn over to Cheryl
PT310b cold cathode gauge when out this morning. Found the pirani interlock disabled. Pirani pressure trend shows a spike in pressure. No known Beckhoff activity at MX this morning.
We saw PT245b go out last week. Minute trend shows no spike in pressure.
J. Kissel, D. Barker This morning I was able to confirm what had given Corey trouble on Sunday night regarding the inability to reset SUS watchdogs on the new Debian work stations (see LHO aLOG 34084). The problem arises from a bug that has continually been re-identified over the past years (see FRS Ticket 4231, LHO aLOG 24950, LLO aLOG 24156, FRS ticket 4180 etc.): the "reset all" button is actually a PERL script, /opt/rtcds/userapps/release/sus/common/scripts/wdreset_all.pl which calls a depricated PERL module / library, /opt/rtcds/userapps/release/guardian/CaTools.pm I will work with TJ and Dave today to create a python version of the two-line script and update the MEDM call.
Jeff B. Filling in for Cheryl. Ops Shift Transition: 02/14/2017, Day Shift 16:00 – 00:00 (08:00 - 16:00) - UTC (PT) State of H1: IFO is locked Intent Bit: Commissioning/Preventative Maintenance Weather: Wind is Light to Gentle Breeze (6 - 12 mph) Temps in the lower 20s with very heavy fog Primary 0.03 – 0.1Hz: Secondary 0.1 – 0.3Hz: Quick Summary: Start of Tuesday Maintenance window Outgoing Operator: Ed
10:23UTC Taking advantage of some LLO downtime to tweak alignment.
TITLE: 02/14 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC STATE of H1: Observing at 68Mpc INCOMING OPERATOR: Ed SHIFT SUMMARY: Locked and in observing for the entire shift. No PI modes, no alarms. Almost 24 hours of double coincidence. LOG: I granted Sheila remote access so she could commit code to a git repository.
Have remained locked and in observing. The range plot shows over 18 hours of coincident data. No issues to report.
Here are some old measurements of the jitter coupling I measured by exciting the IMC PZT and measuring noise in DARM and IM4 trans.
While T0900142 doesn't directly have transfer functions to compare these measurements to, but Kiwamu has been working on simulations that we can use directly. Based on the strain given at the top of page 2 of T0900142, including a factor of 10 safety, the requirement is that the jitter signal should be less than 1.2e-21 m/rtHz at 100 Hz. These measurements show a coupling of around 5e-13 m/fractional amplitude at IM4. If we used these measurements to make a requirement, it would be about 2e-9 fractional amplitude in the 01 or 10 mode at IM4 per rt Hz at 100 Hz, or about 50 times more stringent than the requirement shown in figure 1 of T0900142. It looks like the couplings in the requirements document are either flat above 100 Hz or decreasing, where our measured coupling continues to increase as f at higher frequencies.
Based on the accousitc injections in Anamaria's log, the LLO coupling at 100 Hz is similarly worse than what is calculated in the requirements document.
TITLE: 02/14 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC STATE of H1: Observing at 66Mpc OUTGOING OPERATOR: Cheryl CURRENT ENVIRONMENT: Wind: 3mph Gusts, 2mph 5min avg Primary useism: 0.04 μm/s Secondary useism: 0.49 μm/s QUICK SUMMARY: Microseism has risen over the last 6 hours.
TITLE: 02/14 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: locked all day, truck noise injection
LOG:
Sorry, probably my mistake.