Day Shift Summary
LVEA Laser Safe 

09:00 Gerardo & Joe – Inspect viewports at HAM2 and HAM3
09:00 Hugh – Disconnect BSC3 HEPI 
09:20 Mike L – SURF tour through LVEA
09:30 Jason – Alignment work at ITMX
09:35 Jeff – Adding dust monitors at HAM2 and HAM3
09:45 Apollo & Jeff – Removing doors on HAM2 and HAM3
13:10 Hugh – Working on ITMX move
13:15 Jeff – Remove witness optics & 4” wafer from HAM2
13:45 Calum & Kate - Remove witness optic and 4" wafre from HAM3
13:52 KingSoft on site working on RO filter 
15:00 Travis – General SUS cleanup in the LVEA
15:05 Dave – Reboot SUS-TMSY for hardware watch dogs
15:00 Dave – Restart the DAC

Installed new dust monitors in HAM2 and HAM3. Removed the dust monitor from the HAM assembly/staging cleanroom between HAM4 and HAM5. 

The dust monitor in HAM6 is showing battery/power problems. Filiberto found no problems with the power supply circuit. I am going to put this monitor on a local power supply to see if the problem is in the batteries.  

After our success in controlling the EY HWWD with the h1susetmy model, I reverted the h1sustmsy back to its original model and rebuilt it against RCG2.8.3. This required a DAQ restart due to INI changes.

• Lateral: +0.2 mm (West)
  • Tolerance: ±1.0 mm
• Vertical: 0.0 mm
  • Tolerance: ±1.0 mm
• Yaw: 30 µrad CCW
  • Target: 0 µrad
  • Tolerance: ±50 µrad

Once HEPI actuators are re-attached, I will take another look at position/yaw to make sure alignment is maintained within spec.  After that IAS only needs to align the ITMx in pitch and the CPx in pitch/yaw.

Olli, Justin and Volker

Task:  Set power at bottom of the PSL periscope to 200mW and rotate the polarization by 90 deg to resonate in the low finesse mode of the IMC.

SEI HEPI work at BSC3
Apollo removing the doors on HAM2 and HAM3
PSL power being set to 200mW
SEI locking the HAM2 and HAM3 ISI
SEI working on payload of HAM6
EE working on chassis modifications
Kyle working on HAM2/HAM3 purge air 

Jim and Dave. We are now running a HWWD version of h1susetmy compiled against branch2.8. The model was restarted at 11:16PDT. If we determine there is an error with channel 25 of the binary output chassis, we will replace that chassis.

[Mark Arnaud]

as reported on thursday, sustools.py has been updated in order to account for the new IOP wd state channel names.

By typing in the command line :

/opt/rtcds/userapps/release/sus/common/scripts/./sustools.py -o ETMX wdNames

The output returns all wd state channel names associated with this suspension, including the new IOP channel name:

['H1:SUS-ETMX_R0_WDMON', 'H1:SUS-ETMX_M0_WDMON', 'H1:SUS-ETMX_L1_WDMON', 'H1:SUS-ETMX_L2_WDMON', 'H1:IOP-SUS_EX_ETMX_DACKILL', 'H1:SUS-ETMX_DACKILL']

All sus guardians will be restarted and tested tomorrow

The MC1, 2 and 3 suspensions are now damped manually with the guardians paused for the HAM2 in-vac work. There was an issue with these guardians who reported some Ezca errors when they were in SAFE state. Arnaud and Mark will have a look at this issue.

09:02 Jason heading out for ITMX alignment measurements
09:05 Jeff, Andres working on dust monitors, expanding vacuum line, investigating INVALID alarm on dust monitor 6
09:52 Corey to roof of LVEA, end X and end Y to take pictures
10:09 Jason done with ITMX alignment measurements
11:19 Corey to LVEA to work on 3IFO ISC enclosures
13:17 DAQ restart for Thomas' Beckhoff code changes (WP 4690)
13:21 Hugh, Greg and Jim heading out to work on BSC3 HEPI
13:49 Cyrus to mid X and mid Y to work on CDS wireless
14:39 Cyrus back from mid X and mid Y
14:48 Hugo remotely updating SEI medm screens to reflect IOP DAQKILL changes (WP 4672)
14:51 Ed Merilh arrived visiting from LLO
15:42 Robert and Christina to HAM6
15:47 Hugh, Greg and Jim done at BSC3

Today was Ski's last day at LIGO. We wish him safe travels and the very best in his retirement!

Apollo got the cleanroon pulled back enough to allow us access for the Dial Indicators on the West side.  Once we found a few appropriate ladders and got them wedged into place, we locked the platform and disconnected the Horiozontal Actuators from the Feet.

On Monday we'll get the load cells readers on and continue with the vertical actuator disconnect.

We might be ready to reposition (and IAS checks/direction) Monday afternoon.

Jim/Greg/Hugh

SEI MEDM screens were all updated (HAM-ISI, BSC-ISI, HEPI) to account for the recent changes in the IOP Dackill channels names.

Displays are fully functional again for both HAM-ISI and HAM-HEPI. (before/after - notes)

BSC-ISI and BSC-HEPI need the IOP DACKILL parts to be updated so channel names match with chamber names, as It is currently the case on HAM chambers. DaveB has agreed to do those changes, and the related model restarts, next week so the BSC chamber IOP DACKILL channels are named as follow:
$(IFO):IOP-SEI_$(IOP)_SEI$(CHAMBER)_DACKILL_STATE, with $(CHAMBER) taking the following values: 'BS', 'ITMX', 'ITMY', 'ETMX', 'ETMY'

Work was performed under DaveB's WP #4672

In preparation for HAM 3 door removal on Monday, I have removed both the camera and illuminator cans from HAM 3 west door.  Gerardo was going to do a viewport inspection thereafter.  The mobility equipment is on a table next to the beamtube between HAM 2 and HAM 3.  Please try not to disturb this table as I have attempted to maintain the camera and illuminator orientation in them.  The table is labeled as such.

J. O'Dell, myself

With Joe's help, we "re-payloaded" the ITMx Quad with sleeve and vibration absorbers to bring it back to ~full weight for HEPI height adjustment.  The chamber has been sealed back up with the temporary aluminum door for cleanroom detachment. 

I've installed wireless APs in both mid stations for the use of the vacuum group and CDS when working with systems there.  They work the same as those in the other VEAs.

Measured the ITMx X, Y, Z position this morning after yesterday's SUS adjustments.  The errors are as follows:

• Longitudinal: -0.8 mm (South)
  • Tolerance: ±3.0 mm
• Lateral: -1.1 mm (East)
  • Tolerance: ±1.0 mm
• Vertical: +4.3 mm (high)
  • Tolerance: ±1.0 mm

I've finished upgrading the camera code on h1digivideo0,1, and 2 under WP 4682.  In addition to the code change, the startup scripts are now handled via Monit which means they can be controlled from the web interface with the link added to the overview MEDM.  The servers will now start all configured cameras at boot as well as the supporting IOC processes, so they are self-sufficient except for needing /ligo to read the camera INI files.  The only remaining work is to re-shuffle the camera assignments to balance them out and make room for new installs, which I'll do after coordinating with Filiberto hopefully sometime next week.