Kyle-vented Y-mid Kyle, Travis-Removed BSC6 south door.
Today's Activities: Mid-Y activities - Kyle, Jodie, and others - venting of BSC 6 at Mid-Y. Michael R. making PSL measurements in LVEA ~14:45 local – contractor on-site for PSL flooring quote Corey and Betsy using crane near HAM1 and H1 PSL Filiberto, Richard, and contractors dismantling H2 racks Ski, Mike L. in LVEA - taking apart the old H2 PSL table enclosure Removal of the test mass begins at Mid-Y BSC 6 (Doug Cook, others) ---- By 16:15 local, work continues at the Mid-Y BSC 6 for the removal of the test mass.
As was pointed out, removing the ini files from the DAQ means that most H1 channels were removed and S6 data could not be trended. So I put back in the H1 ini files, but set their acquire flag to zero. All H1 chans should be viewable by dtt and dataviewer, and the archived frames should be accessible.
Ski, Kyle, Hugh - Craned forklift over XBM. Kyle, Ski, Travis, Andres, Betsy, Cheryl, Patrick, Hugh - Removed HAM2 East Door then rehung following Cheryl's in-chamber work. Removed HAM3 East Door and rehung following Cheryl's in-chamber work. Kyle - Started Y-mid purge air compressors.
The LHO X1 SEI test stand had some unusual parameters this morning. I was not able to isolate the table with older Robust Control filters, even with just putting a 0.1 gain on the controller. I noticed the un-filtered geophone channels nearly saturating. To be safe, I rebooted the frontend code, but the problem remained. I then checked the damping loops - they were engaged. However, the gains on the outputs were set to 1. I thought this was the nominal value until I tried to un-damp, then re-damp the table - no success. The actuators saturated immediately, tripping the watchdog. So, I then tried a negative gain and ramping from -0.1 to -1 - success. I had forgotten the gains on the Damping loop outputs were negative -1, while all other loops have positive gains. After this, control loops were still unstable, tripping the Displacement sensors. I noticed the Blend filters were off, and then after enabling, the robust control filters isolated the table. I am not aware as to how (or why) the values were changed in the medm, but the Damping outputs have been at +1 since Oct 21. The watchdog was on the brink of tripping with the +1 gain. They seem stable now with the negative gain - geophone channels are at safe levels and isolation is on.
Did not succeed. For some reason my compiles are deleting the object files and then complaining that they're gone. I don't know what is going on, so I copied the old code back for now. I restarted everything except the motor controllers, since we are not using them for awhile.
Seems that deleting my local .subversion directory and rechecking out the repository might have fixed it. Odd, might have something to do with the restore from the earlier hanford2 crash?
MMT2, MC2, and RM are on earthquake stops. I used both front and back stops for the small optics, and the South side stops on the RM (opposite the elliptical baffle). Everyone involved: Cheryl, Betsy, Patrick, Kyle, Ski, Travis, Andres
Big thing today was removal of HAM 2 and 3 doors, EQ stops screwed in on MMT2, MC2, and RM. Doors are back on. Dave removed H2 channels from the DAQ and several H1 channels as well. Patrick is working on several IOCs, which are currently disconnected TCS enclosures were disconnected from the laser safety network, Dani is aware of this Dani removing optics from ISCT10, finished today Cleaning at MY and EY Apollo at EX More cable pulling from Filiberto/Cyrus
alog had a possible authentication error over the past 20mins. I restarted the httpd process and it seems to be ok now, but not sure if the restart really fixed it.
As part of the H2 deinstall and the H1 mothballing, I am removing channels from the iligo frames when they contain no useful information. We are doing this to reduce the frame size, which saves on LDAS tape costs and increases our local data lookback period. I removed disconnected chans plus all H2 chans from H0EDCU.ini I edited the fb0c master file and removed many inifiles. svn versions: 174 = end of S6 177 = today's version
I have turned off two stages of heat in the LVEA. With lights and cleanrooms operating we should be able to get by without these.
The seismic SVN repository has been moved to Kerberos access control, with the new location being: https://svn.ligo.caltech.edu/svn/seismic. (The previous site was https://svn-private.ligo.caltech.edu/repositories/seismic) Instead of wiping away the old directory and checking out the entire new one, I simply switched the site the SVN uses to update its local copy. I switched the site for the LHO CDS "controls" account (in the control room) and the X1 SEI Workstation copies. On the X1 SEI workstation, the repository local path is still the same: '/opt/svncommon/seisvn/seismic/HAM-ISI/' And in the Control Room, the "controls" user copy is still located at: '/hanford2/users/controls/isi_local_files/SVN/seismic/HAM-ISI/' New user names and passwords are the LIGO.ORG ones. On the workstation, here's the command I entered to switch the checkout site: >> svn switch --relocate https://svn-private.ligo.caltech.edu/repositories/seismic/HAM-ISI/ https://svn.ligo.caltech.edu/svn/seismic/HAM-ISI/ --username jeffrey.garcia@LIGO.ORG *entered in the '~/seismic/HAM-ISI/' directory.
Kyle, Ski - removed BSC1 south door. Rehung a few hours later. Kyle - Removed all but (4) door bolts from HAM2 and HAM3 East doors (Note-dropped large wrench from top of HAM3 and it hit cross beam)
Note to Operators regarding door removals: Whenever a BSC or HAM chamber is prepped for door removal you will see annulus ion pump alarms. These may remain in alarm for the duration of the vent. Ask Kyle or John for more info if needed.
We moved to ISCT10. One particularly dirty lens that was just sitting on top of a small aluminum table OUTSIDE of ISCT10 enclosure along with viewers and such (not used for anything, but who'd put a lens OUTSIDE of the table enclosure?) was thrown away. Finger print and scratches all over. At some stage all the lights of the card reader went out. This was found by me later when I tried to swipe out of ISCT10, I called the control room, and Jonathan Berliner found that ISCT10 was "offline", whatever that means. LSO (Dani) reset my card so I was able to continue working, but ISCT10 is still "offline". Did somebody cut off the power to the access system for this table?
Pacific Daylight Time: 1227 - Done at BSC1,2,3 1234 - Cheryl returns to BSC2 with Patrick for ~15 minutes of checks 1248 - EY cryopump alarms 1254 - Illuminator lights turned off via MEDM, power supply in LVEA left on 1317 - Dale out to H1 PSL to position camera for LaserFest recording 1330 - Gerardo out to LVEA to talk to Filiberto 1342 - Door Forced at EX (card APB, i addressed it) and at LVEA 1345 - DEA reports ISCT7 done 1347 - Gerardo out 1352 - Dale reports loud noise in LVEA due to microphone feedback from speaker. He is also concerned for people who may complain about RF interference with other people's work. 1436 - Jodi and Kyle moving engine hoist from EX to MY 1445 - Betsy goes out to HAM1-3 to prepare cleanrooms for door removal 1511 - Corey opens Large Equipment Access Door. 1520 - Patrick out to LVEA to find Cheryl 1528 - Michael Rodruck back to LVEA for more measurements. 1609 - Jodi ook Optics Cart, straddle lift, and CP Stat foil dispenser from LVEA to MY, and is now back 1610 - Apollo guys finish replacing beam tube curtains...will commence crane-cleaning at 7:30am. Addenda: - I tried following up with as many Door Forced alarms as possible, but was successful less than 10% of the time in reaching the culprits by phone. They will not be recorded in my future logs. Currently, WAPAC reads Off-line for LVEA, but people report that it works. - Ignore all ion pump alarms.
Mark Barton and I are continuing testing of Quad 2 and developing the testing procedures. Tests look good for main chain. However, there are some issues with the reaction chain, which we will continue working on tomorrow.
Removal of H2 Electronics from LVEA continues.
Just saying.
and to make the details field optional.
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