I noticed some red on the CDS Overview and saw that it was a timing error at EY. Verbal reported it at 22:43:43 UTC but was muted for interviews so no one noticed. 

A attached a screenshot of the timing system medms.

FRS 8142
alog 36213

Vacuum group reported GV5 MEDM status did not change once GV5 was hard closed. Issue was traced to a cabling error inside the Vacuum Controls Chassis for LY. The wiring document E1500365 needs to be updated to reflect new change. Readback status of GV5 now shows as being hard closed.

F. Clara, G. Moreno

• 15:57UTC - Chandra in LVEA
• 16:11UTC - notified that a Nova film crews is coming to OSB/CR/LVEA
• 16:20UTC - Chandra, done in LVEA
• 16:38UTC - Nova crew arrives, is on site
• 16:45UTC - JeffB to EY and EX to check dust monitor pumps
• 16:51UTC - fire department here to check ladders... tracked down Bubba who confirmed this was a legit visit from HFD, he met them out front
• 17:15UTC - JeffB, issue at EY, will be there for a while
• 17:28UTC - Karen and Christine to LVEA
• 17:32UTC - JeffB back from EY
• 17:33UTC - Travis to LVEA
• 17:45UTC - tour
• 17:48UTC - Aidan and TJ to HAM4 to work on Hartman
• 17:48UTC - Travis out of LVEA
• 17:54UTC - Gerardo to LVEA, GV5, to check on it
• 18:01UTC - JeffB to EY
• 18:02UTC - Karen to MY
• 18:15UTC - Nova crew on arms
• 18:49UTC - Gerardo and Fil to GV5
• 18:51UTC - Travis to MX
• 18:54UTC - Jenne and film crew person to LVEA
• 19:07UTC - Karen done at MY
• 19:10UTC - tour leaves, I open the doors to outside for about 5 minutes to clear the perfume, etc. from the air
• 19:10UTC - TJ runs ISC_LOCK down script, he and Aidan are only persons working on H1
• 19:12UTC - ISC_LOCK in IDLE
• 19:28UTC - TCS test on Hartman is running, optic alignments need to remain as is for another 1.5+ hours
• 19:40UTC - Gerardo and Fil out of LVEA
• 20:38UTC - filming in the CR, getting set up
• 20:47UTC - Gerardo and Fil back to GV5
• 21:26UTC - Corey to sqeezer bay
• 21:54UTC - Nova begins to film Mike
• 21:59UTC - Gerardo and Fil done at GV5, heading to EY to look at BRS
• 22:07UTC - Travis opening the roll up door in cleaning area
• 22:40UTC - Gerardo and Fil back from EY
• 22:40UTC - Robert at EY
• 22:41UTC - Aidan and TJ to HAM4 to work on Hartman
• 23:00UTC - Robert back from EY
• 23:00UTC - Nova filming continues
  • at this time it appears that these people are still int the LVEA
  • Aidan
  • TJ
  • Corey
  • Chandra
  • I'm not aware of anyone at end or mid stattion
• ISC_LOCK is in IDLE
• IMC is locked

Trend of X&Y beam manifold pressures through various modes of pumping over two days.

I turned the RH drivers back on. ITMY RH was turned onto 6W total power for the last two hours (and now turned off again). ITMX RH returned to 0.5W total power.

Added 200mL to the crystal chiller.

FAMIS6523

   Ran CPS Noise Spectra Script. Plots are posted below. All look OK except ETMY_ST1_CPSINF_H2, which is a bit elevated. Closing FAMIS #6898.

   Completed monthly check of the dust monitor vacuum pumps. CS and End-X pumps, temperatures, and pressures are normal. The pump at End-Y failed on 05/12/17. I have swapped in the backup pump, while rebuilding the primary pump. 

   I have opened up the air bleed on all pumps to allow for greater cooling during the summer months. Pumps are now running at 15 in/Hg.  

Closing FAMIS #7513

Starting CP3 fill. LLCV enabled. LLCV set to manual control. LLCV set to 50% open. Fill completed in 84 seconds. TC B did not register fill. LLCV set back to 21.0% open.
Starting CP4 fill. LLCV enabled. LLCV set to manual control. LLCV set to 70% open. Fill completed in 857 seconds. LLCV set back to 32.0% open.

Here's the latest pump down curve - log/log scale. Ideally we want to wait till 1.0e-7 Torr to open up to beam tube, but we can compromise with 2.0e-7 Torr. In that case, looks like we will be opening GV5,7 late next week.

We can open up GV 1,2 earlier if folks need oplev assistance for alignment.

I valved the turbos back into X&Y beam manifolds, valved out the IPs, and now X turbo is being backed by scroll (not turbo-leak checker), so both volumes are essentially identical. Trending pressure curve today. We have three full bottles of He on standby. ;)

Attached is a trend plot of 45 days for the HEPI pumps.  I included the pressure channels from the vertex, where we are currently pumping down after venting to view/clean ITMX.  Changes in EY and EX Vout signals coincide with the vent, so possibly due to intentional changes.

• IMC is locked
• no notes about people on site that started before my shift

[Jenne, Kiwamu, Vaishali with help from JimW and JeffK]

Continuing the locking effort from yesterday (36197), we managed to get the mode cleaner to lock. Here's a roll down of the events from today:

1. We (Jenne and I) first aligned the MC2 REFL camera because we were almost on the edge of the PD.

2. As this didn't fix the not locking problem, we asked Kiwamu for help and then we looked at a bunch of parameters like filters, gain thresholds, ramp times.  We also looked to check if the suspensions were behaving correctly and then found the mirror which had been turned off. This button (MC2 M2) was not in use at all. Maybe we should have double checked the sdf differences but we know better now.

While we were aligning the MC2 REFL we noticed that MC2 Trans wasn't looking like what it used to. We tried to trace the beam and found that the camera was being illuminated by a ghost beam and not the actual transmission beam of the MC. We found a bright spot by looking into the light pipe and then found that the beam wasn't coming onto the telescope at all. As we couldn't see anything on the viewer card, we turned up the laser power to 10 W and found the beam again in the light pipe only with the IR viewer.

Jenne then tried to gently tap the light pipe (this is the same pipe that had problems yesterday and was fixed) with me looking at the bright spot and it didn't move at all which leads to us believe that the beam might be hitting the edge of the table somewhere.

After hypothesising out loud that this might have been because the tables hadn't returned to the correct positions, we were corrected by JimW who told us that the ISIs return back to their positions on their own.

We then tried to change the axis of the modecleaner in order to redirect the beam in the light pipe but we weren't too successful.

Not having solved this mystery of what happened to MC Trans, we concluded the work for today with a modecleaner that locks at 2 W and 10 W.

Jenne will correct me if I have missed something or used wrong names of mirrors in comments !

J. Kissel

Checking the bill of health of H1 SUS ITMX's suspension with standard driven transfer functions, I can say that both the main and reaction chains appear clear of rubbing without any normal offsets used in the Nominal Low Noise. Recall the ITMX reaction has had rather large offsets on for most of O2 to alleviate suspected rubbing (see e.g. LHO aLOG 33395). I'll do some more study tomorrow with various combinations of alignment and rubbing alleviating offsets in place to make sure that this statement holds in all locations we use.

For now, today's data lives here:
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ITMX/SAGM0/Data
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_L_0p01to50Hz.xml
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_P_0p01to50Hz.xml
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_R_0p01to50Hz.xml
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_T_0p01to50Hz.xml
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_V_0p01to50Hz.xml
    2017-05-16_2250_H1SUSITMX_M0_WhiteNoise_Y_0p01to50Hz.xml
/ligo/svncommon/SusSVN/sus/trunk/QUAD/H1/ITMX/SAGR0/Data
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_L_0p01to50Hz.xml
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_P_0p01to50Hz.xml
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_R_0p01to50Hz.xml
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_T_0p01to50Hz.xml
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_V_0p01to50Hz.xml
    2017-05-16_2345_H1SUSITMX_R0_WhiteNoise_Y_0p01to50Hz.xml

I'll export and compare with old reference data in due time.